d Clamping and gripping device with high mechanical advantage and energy saving attributes By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A tool is provided for moving a first clamping or gripping member toward or away from a second facing clamping or gripping member, the tool having a double threaded drive shaft coupled to opposed threaded linkage driving members for causing the threaded linkage driving members to be driven toward or away from each other. As the threaded linkage driving members move closer, the resulting angle of the links becomes steeper, thus increasing the mechanical advantage of the clamping tool, enhancing clamping forces. A beneficial result is a clamping apparatus that requires less manual energy than a traditional clamp. Another beneficial result is provided if the same amount of energy is applied to the driveshaft as in a traditional clamp, the resulting clamping force is significantly higher. If the second clamping member is adjustable, it accommodates wide variations in thickness of an object positioned between the first and second clamping members. Full Article
d Web member cutting apparatus for cutting web member that has a plurality of fibers including tows and web member cutting method By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A web-member cutting apparatus for cutting a web member at intervals in a transport direction includes: an intermittent transport mechanism for intermittently transporting the web member in the transport direction; a disc-like rotatable blade member for cutting the web member by moving along an intersecting direction while rotating about a rotation shaft during a suspension period of transport of the web member, and a downstream pressing member for regulating movement of the web member by pressing the web member against the intermittent transport mechanism at a position downstream from a target cut position in the transport direction throughout a period during which the rotatable blade member is cutting the web member. Full Article
d Window covering sizing method and apparatus By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A method and apparatus for cutting a window covering comprises saw for cutting the window blind. A clamp assembly moves the window covering relative to the saw. A controller moves the clamp assembly to automatically position the window covering relative to the saw. The saw is moved into engagement with the window covering to cut the window covering. Full Article
d Apparatus and method for cutting tubular members By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT An apparatus for cutting tubular members includes a support structure, a control system, a cutting station, a guide and an extracting assembly. The cutting station includes a first wheel having at least one cutting member located on the circumference of the first wheel and a second wheel having at least one projection located on the circumference of the second wheel. The extracting assembly has a cylindrical member with a first end and a second end. The cylindrical member also includes a pair of grooves extending along a portion of the interior thereof. The grooves decrease in height and depth from the first interior section to the third interior section. Full Article
d Positioning device for a turnable table of saw machine By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A positioning device for a turnable table of a saw machine having a pivot shaft that pivotally connects a pair of clamping units. A pressing member with an attachment portion for attaching to a coupling unit may be formed on each clamping unit. By manipulating a trigger of the coupling unit, the pair of clamping units can be driven to rotate a pair of corresponding clench members for selectively clamping or unclamping a base of the saw machine. Thereby, the turnable table can be secured in place upon adjustment. Full Article
d Device and method for cutting through the adhesive bead of panes that have been fixed by bonding By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A device and a method for cutting through the adhesive bead of panes that have been fixed by bonding is specified, said device having a base body on which at least one suction plate for fixing on a pane to be separated out as well as one motor-drivable coil for winding-on a separating wire are accommodated, wherein at least two guide rollers are held on the base body by means of extension arms at a distance which is adjustable in respect to each other. The device is preferably positioned approximately diagonally on the pane in such a manner that the guide rollers are situated on the outer ends of the extension arms in the vicinity of the corner regions of the pane. Full Article
d Sheet material punching device By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A sheet material punching device includes a plurality of punches and links, a driving mechanism having drive gears capable of transmitting a rotational driving force of an electric motor (driving source), and slide arms allowed to reciprocate along the longitudinal direction of a frame, the slide arms making the punches reciprocate in a punching direction along with their own reciprocating motions by the intermediary of links. The slide arms respectively have cams capable of converting the rotational motion of the driving mechanism into the reciprocating motions of the slide arms, and auxiliary cams capable of moving the slide arms to predefined initial positions. The drive gears respectively have cam followers to be engaged with the cams, and auxiliary cam followers to be engaged with the auxiliary cams. The sheet material punching device return the slide arms to the initial positions without increasing a driving energy. Full Article
d Dresser drive link for saw chain By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Embodiments herein provide a drive link having a conditioning portion to be used in conjunction with one or more dresser links of a saw chain to condition a sharpening element. The dresser links may include left and right dresser links configured to contact the sharpening element in first and second contact regions which may not overlap, leaving a gap. The conditioning portion of the drive link may contact the sharpening element in a third contact region that includes at least a portion of the gap between the first and second contact regions. Full Article
d Articulating band saw and method By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An articulating band saw apparatus provides a frame that includes a vertically extending section having upper and lower end portions. An elevator moves between the upper and lower end portions of the frame. A first hydraulic actuator is supported on the elevator for movement therewith. A first arm provides arm end portions, the first arm supported by the first hydraulic actuator. An end of the first arm supporting a second hydraulic actuator that is spaced away from the first hydraulic actuator. The second hydraulic actuator supports a second arm. An endless band type saw is mounted on the free end of the second arm generally opposite the second actuator. The band saw is movable by articulation of the first and second actuators and resulting movement of the first and second arms. In one embodiment, the band saw is a diamond wire saw. Full Article
d Rotary cutter unit and printer device having the unit By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A simple and compact rotary cutter unit capable of detecting a home position of a rotary cutter, and a printer device having the rotary cutter unit. A radially outwardly extending fin-shaped detected member is arranged on an end portion of the rotating blade opposed to a second gear of the rotating blade. A photosensor is arranged within a main frame of the printer device so that the photosensor may detect the fin-shaped member when the rotating blade is positioned at the home position. The fin-shaped member and the photosensor are not positioned outside relative to both ends of the rotating blade in relation to the direction of the rotational axis of the rotating blade. Therefore, it is not necessary to increase the width of the printer device due to the presence of the fin-shaped member or the photosensor, whereby the printer device may be compactly constituted. Full Article
d Adjustment device for an auxiliary fence By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An adjustment device for an auxiliary fence includes a support frame, an auxiliary fence, a guiding unit and an adjusting unit. The guiding unit guides the auxiliary fence along a longitudinal direction such that the auxiliary fence is selectively slidable relative to the support frame. The adjusting unit allows the auxiliary fence to be adjusted relative to the support frame and securely positioned. The adjusting unit includes a driving member, a securing member installed on the driving member, and an elastomeric element. When the driving member is operated, the securing member becomes disengaged from the support frame which allows the position of the auxiliary fence to be adjusted by sliding it relative to the support frame. Full Article
d Multifunctional saw apparatus and method By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT In some examples, an apparatus includes a base including an arm selectively movable with respect to the base. The arm is selectively rotatable about a first arm axis. A base plate is engaged with the arm. A tool is configured to be detachably coupled to the base plate. The tool is movable with the base plate when coupled to the base plate. The apparatus includes a first mode with the tool coupled to the base plate and the arm being selectively rotatable about the first arm axis, a second mode with the tool coupled to the base plate and the arm being constrained from rotating about the first arm axis, the arm being substantially stationary with respect to the base; and a third mode with the tool detached from the base plate. Full Article
d Reciprocating microtome drive system By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An apparatus having a sample sectioning device including a cutting mechanism that is operable to cut sections from a sample and a sample holder that is operable to hold the sample. The apparatus further includes a drive system coupled with the sample holder to drive movement of the sample holder and a reciprocating member coupled to the drive system to drive vertical movement of the drive system. The reciprocating member to move in a reciprocating manner within an angle of rotation of less than 180 degrees. A surface orientation sensor may further be provided that is operable to sense an orientation of a surface of the sample held by the sample holder. Full Article
d Method for optimizing lumber derived from a log By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT In some embodiments, the disclosure includes method for optimizing lumber derived from a log. The method may include the steps of debarking the log and cutting the log to provide a plurality of boards. The plurality of boards are then scanned to determine knot properties and/or warp stability for each of the plurality of boards and a lumber upgrade process is selected based on the knot properties and/or warp stability. Finally, one or more of the plurality of boards are planed after being subjected to the lumber upgrade process. Full Article
d Metal-cutting machining method and semi-finished product By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The invention relates to a metal-cutting machining process for a semi-finished product having a predetermined shape and at least one machining surface which has the steps: applying a protective foil having a predetermined elongation at break to the at least one machining surface with a predetermined adhesive force, placing a metal-cutting tool in a predetermined position above the machining surface, exerting a predetermined mechanical force in a predetermined direction for a predetermined length of time to the tool for carrying out a metal-cutting process on the semi-finished product and lifting the tool from the at least one machining surface after the predetermined length of time. In order to protect the semi-finished products from damage through the machining residues and at the same time not to impair the drilling performance, according to the invention through the adhesion an adhesive force is produced between the protective foil and the machining surface of substantially 10 N/25 mm and a protective foil is used which has an elongation at break of between 80 and 120%. Full Article
d Automatically removing waste material using a strip die when cutting a sheet of material according to a predetermined pattern By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A strip die is prepared with cutouts according to a pre-determined pattern, e.g., on a cutting table and positioned on a stripping station that has a removal tool to remove waste material. After a sheet of material is cut on the same or another cutting table, the sheet is positioned in the stripping station over the female strip die. The removal tool moves to programmed positions in the stripping station and removes pieces of waste material. The final stripped cut sheet is the brought to the out-stack. Full Article
d Fabric cutting system and method By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A fabric cutting system and/or method can include a mandrel having a body and first and second legs, a centered chuck, and an offset chuck, each chuck configured to receive either one of the legs or body to rotatingly support the mandrel between the chucks. When one of the legs is inserted into the centered chuck and the mandrel body is inserted into the offset chuck, the mandrel can be rotated and the fabric mounted on the mandrel can be cut about the leg at a location beyond the end of the other leg. One of the legs can include a leg extension removable from a leg base that when removed allows the other leg to be cut beyond the end of the leg base. The fabric can be cut with a cutting laser, which may be a multi-axis laser, and/or have low power. Full Article
d Saw machine riving knife adjustment mechanism By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An adjustable riving knife assembly including a riving knife and a saw machine riving knife adjustment mechanism, the adjustment mechanism including a locating member and a locking unit. The locating member defines a track, and the riving knife has a riving knife body and a coupling portion inserted into the track. The locking unit includes an axle holder affixed to the locating member, a brake mounted on the axle holder, an operating member connected to the brake and a locking member to be driven by the brake. Rotation of the operating member causes the brake to move the locking member relative to the riving knife between a locking position, where the locking member engages the riving knife, and an unlocking or adjusting position, where the locking member is disengaged from the riving knife. Full Article
d Mandolin slicer By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A mandolin slicer having one or more safety features, including a food carrier having one or more guards to protect a user's hand and a food carrier delivery system that helps ensure uniform and predictable movement. The mandolin slicer also provides an ability to safely and effectively cut oversized, long, and awkwardly shaped food articles. Full Article
d Automatic paper cutting device By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An automatic paper cutting device, includes: a paper reel frame for supporting the paper; and a core unit, wherein the core unit comprises a paper rolling shaft which a head portion of the paper reel rolls around, and the paper rolling shaft is connected to a cutting device. The present invention simplifies the internal structure for realizing the functional requirement that the structure are simpler and the accessories are fewer, the structure of the automatic paper cutting device is simpler, the automatic paper cutting device works more stable, the paper is outputted more smoothly, and the paper of different thickness and quality is capable of being cut automatically. Full Article
d Apparatus, method, and system for orienting a saw chain link on a sprocket By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Embodiments herein provide a modified pitch sprocket to provide an orientation of a saw chain link, such as a cutter link or drive link, with respect to the direction of travel of the link, as it traverses the sprocket that is different than the orientation of the link as it traverses a straight portion of the guide bar. In some embodiments, the modified pitch sprocket may orient the cutter link to provide radial extension for a depth gauge of the cutter link relative to a cutting element of the cutter link. This may facilitate shaping of the depth gauge and/or cutting element, such as by a sharpening element, as the cutter link traverses the sprocket. Full Article
d Method and arrangement for separating contaminants from liquids or vapors By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT A method and assembly for separating contaminants from liquids, such as condensates, or vapors at an evaporation plant. The contaminants are separated from liquids by stripping when bringing a contaminant-enriched liquid into direct contact with a vapor by spraying or distributing the liquid into the vapor flowing in a vapor duct or onto wall surfaces in the vapor duct thus reducing the contaminant-content of the sprayed liquid and producing a cleaner liquid. The contaminants are enriched in the vapor. From vapors contaminants are separated by absorption when bringing a contaminant-enriched vapor into direct contact with a cleaner liquid by spraying or distributing the liquid into the vapor flowing in a vapor duct or onto wall surfaces in the vapor duct thus increasing the contaminant-content of the liquid, but producing a cleaned vapor. Full Article
d Method and apparatus for manufacturing coated paper By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT A method of manufacturing coated paper by applying a coating liquid to a strip-shaped web of paper to form a plurality of bands extending in the width direction of the web and spaced from each other in the longitudinal direction of the web includes: a coating step (S1) of applying the coating liquid to the web to form the bands with a coating band pitch narrower than a design band pitch defined as a standard for the coated paper; an aftertreatment step (S2), executed after the coating step, of drying the web; and a tension applying step (S3), executed after the aftertreatment step, of expanding the band pitch of the web by applying tension to the web to cause the band pitch of the web to approach the design band pitch. Full Article
d System and process for improving paper and paper board By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT The invention relates to a process for making paper or paper board comprising forming a cellulosic suspension, flocculating the suspension, draining the suspension on a device to form a sheet and then drying the sheet, wherein the suspension is flocculated using a formation improving 3-component flocculation system comprising a) a linear cationic or ampoteric co-polymer of: i) acrylamide, and ii) a substance with formula (I) with a halide as counter-ion; b) at least one water soluble component chosen from the group of anionic polyacrylamide, non-ionic polyacrylamide and polyethyleneoxide; and c) inorganic microparticles, whereby the flocculation system does not contain a wafer-dispersible or branched anionic organic polymer. The invention also relates to use of the flocculation/retention system in the manufacture of paper or paper board, and to paper and paper board thus produced. Full Article
d Water and oil resistant agent for paper and paper treatment process By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT Disclosed is a water and oil resistant agent comprising a fluorine-containing copolymer obtained by copolymerizing a (meth)acrylate monomer having a polyfluoroalkyl group having 1 to 6 carbon atoms, the agent being able to afford a superior water and oil resistance to a paper. The invention also discloses a composition comprising the water and oil resistant agent, a process for treating a paper thereby and a treated paper thereby. Full Article
d Process for the preparation of surface-treated calcium carbonate material and use of same in the control of organic material in an aqueous medium By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT The present invention relates to a process for the production of a surface-treated calcium carbonate, the use of this surface-treated calcium carbonate in a process for the control of organic material in an aqueous medium, as well as to a composite of surface-treated calcium carbonate and organic material, such as a composite of surface-treated calcium carbonate and to the use of such a composite. Full Article
d Method and device for the hydrolysis of preferably solid organic substrates By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT The invention relates to a device for the hydrolysis of preferably solid organic substrates, in particular of energy crops and plant residues, with a collection vessel (1) for receiving the organic substrates, with a conveying means (4) for transporting the organic substrates into a charging device (7) for the batch-wise charging of a hydrolyzer (10) with the organic substrates, the hydrolyzer (10) being provided on the output with a pressure-release device (12) having a valve-controlled pressure diaphragm (13) and a steam trap (14) arranged upstream of an expander tank (15). According to the invention, the conveying means (4) includes a conveyor worm (4') with a sleeve shaft (25), which is charged with hot steam from the steam trap (14), which is preferably designed as a cyclone, the sleeve shaft (25), in the conveying zone for the organic substrate, having, in a heating zone (18), steam-outlet openings (26) for directly charging the organic substrate with hot steam. Full Article
d Process for production of finely fibrous cellulose composite prepreg sheet, process for production of finely fibrous cellulose composite sheet, and process for production of finely fibrous cellulose composite laminate sheet By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A method of producing a finely fibrous cellulose composite prepreg sheet, sheet or laminate sheet, the method including a mixing an emulsion of a reactive compound with an aqueous suspension containing a finely fibrous cellulose to prepare a mixed liquid dewatering the mixed liquid by filtration on a porous substrate to form a water-containing sheet; and heating and drying the water-containing sheet. A method of producing a finely fibrous cellulose composite sheet, the method including subjecting the finely fibrous cellulose composite prepreg sheet produced by the method described above to a curing treatment. Full Article
d Blends of polymers as wet strengthening agents for paper By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT Resin systems and methods for making and using same are provided. The method for making a paper product can include contacting a plurality of pulp fibers with a resin system. The resin system can include a first polyamidoamine-epihalohydrin resin and a second resin that can include a second polyamidoamine-epihalohydrin resin, a urea-formaldehyde resin, or a mixture thereof to produce a paper product. The first resin and the second resin can be sequentially or simultaneously contacted with the plurality of pulp fibers. The period for sequential addition between the first resin and the second resin is about 1 second to about 1 hour. Full Article
d Method of increasing paper surface strength by using acrylic acid/acrylamide copolymer in a size press formulation containing starch By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT The invention provides methods and compositions for increasing the strengthening effect of a starch coating on paper. The method involves contacting the starch with a synthetic polymer before the starch is cooked. This changes how the starch gelatinizes and how the polymer gets distributed on the paper resulting in greater paper surface strength. Full Article
d Process for manufacturing paper and board having improved retention and drainage properties By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A method for manufacturing a sheet of paper and/or board having improved retention and drainage properties is provided, according to which, before the formation of the sheet and/or board, at least two retention aids are added to the fibrous suspension. These two retention aids are a main retention aid corresponding to a (co)polymer having a cationic charge density above 2 meq/g, obtained by the Hofmann degradation reaction, and a secondary retention aid corresponding to a water-soluble or water-swellable polymer having an anionic charge density above 0.1 meq/g. The main retention aid is introduced into the fibrous suspension in a proportion of 100 to 800 g/t of dry pulp, and the secondary retention aid is introduced into the fibrous suspension in a proportion of 50 to 800 g/t of dry pulp and has an intrinsic viscosity IV above 3 dl/g. Full Article
d Treatment, such as cutting, soaking and/or washing, of organic material By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT The invention relates to a method or methods of operating an apparatus for treating material by cutting, soaking and/or washing of the material, wherein the apparatus comprises a receptacle, a discharge element with a vortex generator and a pump arranged to pump fluid and material from the receptacle towards the vortex generator, wherein the vortex generator and the pump in combination are adapted to generate a vortex in the form of a conic helix in the fluid extending into the receptacle. Full Article
d BCTMP filtrate recycling system and method By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A process for making bleached pulp comprises contacting an unbleached pulp mixture with a first recycled filtrate obtained from a first location (3) of a first recycled filtrate loop, to obtain a first pulp mixture having a first consistency; bleaching the first pulp mixture, to obtain a first bleached pulp mixture; pressing or dewatering the first bleached pulp mixture, to obtain a first pressed bleached pulp mixture and a second filtrate; sending at least a portion of the second filtrate to a second location (5) of the first recycled filtrate loop, wherein the second location (5) is downstream of and in fluid communication with the first location (3); contacting the first pressed bleached pulp mixture with a second recycled filtrate obtained from a third location (6) of the first recycled filtrate loop, to obtain a second pulp mixture having a second consistency, wherein the second consistency is greater than the first consistency, and wherein the third location (6) is downstream of and in fluid communication with the second location (5); bleaching the second pulp mixture, to obtain a second bleached pulp mixture; pressing or dewatering the second bleached pulp mixture, to obtain a second pressed bleached pulp mixture and a third filtrate; sending at least a portion of the third filtrate to a fourth location (8) of the first recycled filtrate loop, wherein the fourth location (8) is downstream of and in fluid communication with the third location (6); and recycling at least a portion of the third filtrate in the first recycled filtrate loop to the first location (3); to obtain the bleached pulp. Full Article
d Textile belt, method for making it, and its use By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT An industrial textile belt, a method for making it, and its use. The belt includes a seam with joining ends that can be joined together so that the belt becomes an endless loop. The joining ends have seam areas with cross-machine direction wear yarns on their machine surface. The wear yarns receive wear stress when the belt slides against the support surface of a processing device. Full Article
d Process for the conversion of biomass to liquid fuels and specialty chemicals By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A process is disclosed for converting biomass to fuels and/or valuable chemicals. The process comprises the steps of a) activating biomass to make it more susceptible to conversion; c) partially converting the biomass to a solubilized material; and d) subjecting the unconverted biomass to a second conversion step. The process optionally comprises a step b) of adding a solvent to the activated biomass. In a preferred embodiment the solubilized biomass obtained in step c) is removed before the unconverted biomass is subjected to step d). Full Article
d Dispersible hydroentangled basesheet with triggerable binder By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT The present disclosure is generally directed to a dispersible moist wipe comprising hydroentangled fibers and a binder composition. The moist wipe demonstrates high initial wet strength while maintaining effective dispersion in an aqueous environment. The moist wipe has potential application as a flushable surface cleaning product and/or a flushable cleansing cloth. Full Article
d Method for forming a fire resistant cellulose product, and associated apparatus By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A method is provided for forming a fire resistant cellulose product. A fire-retarding solution and a bonding agent are combined with refined cellulose fibers to form a fiber mixture, and the fire-retarding solution and bonding agent are substantially uniformly distributed with respect to the cellulose fibers within the fiber mixture. The fiber mixture is exposed to an actuating element, wherein the actuating element is configured to actuate the bonding agent so as to facilitate cohesion of the cellulose fibers and form the fiber mixture into a fiber board member, the fiber board member having opposing major surfaces. A cellulose sheet member is engaged with each major surface of the fiber board member, such that each cellulose sheet member substantially covers the respective major surface. An associated apparatus is also provided. Full Article
d Polymer dispersion By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT The invention relates to an aqueous polymer dispersion comprising an anionic water-soluble dispersion polymer comprising in polymerized form a monomer mixture comprising (i) one or more anionic monomers, (ii) a first non-ionic vinyl monomer which is acrylamide, and (iii) at least one second non-ionic vinyl monomer; a water-soluble salt and a stabilizer, wherein the water soluble salt is present in an amount of at least 2.0% by weight, based on the total weight of the dispersion. The invention further relates to a process for producing the aqueous polymer dispersion, use of the aqueous polymer dispersion as a flocculating agent in papermaking or for water purification, and a process for producing paper which comprises adding one or more drainage and retention aids comprising the aqueous polymer dispersion to an aqueous suspension containing cellulosic fibers and then dewatering the obtained suspension. Full Article
d Composition and use of hydrogenated alkyl ketene dimers By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT Latent dispersants were made by the hydrogenation of an alkyl ketene dimer, alkenyl ketene dimer, or ketene multimer. Adding the latent dispersant to paper or paperboard increased its resistance to water and water vapor while maintaining recyclability and repulpability. Additionally, provided is a method for increasing the repulpability of a wax coated paper or paperboard. Dispersants made by the hydrolysis of the alkyl ketene dimer, alkenyl ketene dimer, and ketene multimer are also described. Full Article
d Pin seamed press felt with triple layer base fabric By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A press felt includes: a base fabric comprising a plurality of repeat units, each of the repeat units comprising a plurality of exterior machine direction (MD) yarns, each of which includes an upper run and a lower run merging with seam loops at each end, a plurality of middle MD yarns positioned between the upper and lower runs of the exterior MD yarns, a plurality of cross machine direction (CMD) yarns interwoven with the exterior MD yarns and the middle MD yarns in a predetermined regular weave pattern, the seam loops defining the longitudinal ends of the press felt; and a batt layer overlying the base fabric. Full Article
d Waterless degumming system By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A method and system for cleaning lignin and other gums from lignocellulosic fiber is disclosed. Lignocellulosic fiber is rapidly depressurized to a pressure lower than atmospheric pressure. The fiber is exposed to ionized air during the rapid depressurization. The fiber is then repressurized to a pressure equal to or greater than atmospheric pressure. Full Article
d Method for obtaining cellulose from biomass comprising lignocellulose By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The invention relates to a method for obtaining cellulose by separating lignin from a biomass comprising lignocellulose in the form of plants or plant parts, wherein the biomass comprising lignocellulose is solubilized in a boiler in an alkaline medium comprising alkanol amine, and dissolved lignin is separated from the resulting raw cellulose. Said method is characterized in that the biomass comprising lignocellulose is not from a wood source, and is solubilized at a temperature of less than approximately 170° C. in a solubilizing agent based on alkanol amine and water, wherein the weight ratio of alkanol amine to water is set to 80:20 to 20:80, and raw cellulose thus produced is separated from the waste lye using a typical method. Said method is particularly advantageous for obtaining cellulose from annual plants, particularly wheat straw. The method is advantageously improved in that the solubilization takes place in the presence of a catalyst, particularly of anthrachinon. An advantageous bleaching process may be performed subsequently. Said method is characterized by great economic efficiency, particularly due to the high reclamation rates of the alkanol amine used, and leads to lower environmental impact in wastewater, and to reduced disposal costs. The design of the method leads to a greater yield of cellulose and largely prevents degradation of alkanol amine, particularly monoethanol amine (MEA). Full Article
d Fibrous structures and methods for making same By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT Fibrous structures that exhibit a Free Fiber End Count greater than the Free Fiber End Count of known fibrous structures in the range of free fiber end lengths of from about 0.10 mm to about 0.75 mm as determined by the Free Fiber End Test Method, and sanitary tissue products comprising same and methods for making same are provided. Full Article
d Sheet forming unit for producing a material web and method for operating the sheet forming unit By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A sheet-forming unit of a papermaking machine includes a headbox which outputs a suspension jet and an inner fabric and an outer fabric, which in each case form a loop. A forming element is arranged within the loop of the inner fabric and guide rolls and a white-water box are arranged within the loop of the outer fabric. The inner fabric and the outer fabric form a gap for receiving the suspension jet and jointly wrap around the forming element at least partially in a wraparound region. A machine-wide guide element is arranged in the wraparound region within the loop of the outer fabric and/or, in the region of at least one of the guide rolls of the outer fabric, a machine-wide guide apparatus is provided outside the chamber which is formed by the loop of the outer fabric. Full Article
d Cellulase composition containing cellulase and papermaking polymers for paper dry strength application By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT Disclosed herein are cellulase compositions useful as papermaking performance additives for improving paper dry strength of a paper product and reducing refining energy in papermaking processes, and improving paper production. These cellulase compositions are formulated using cellulase, papermaking contaminant control polymers, protein stabilizers and cellulase enhancers. These cellulase compositions measure higher in endo-cellulase activity with better stability than conventional cellulase, and have shown differentiating performance in improving paper dry strength properties versus cellulase alone. Full Article
d Method for preparing a seam area for a PMC base fabric By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A process for preparing a seam area for a paper machine clothing (PMC) base fabric includes the steps of: forming the PMC base fabric by flat-weaving, the PMC base fabric including warp yarns extending in machine direction and weft yarns extending in cross machine direction and interwoven with the warp yarns, the weft yarns including first weft yarns and a second weft yarn, the second weft yarn being a multifilament yarn, the warp yarns, the first weft yarns, and the multifilament yarn being woven together on a loom in an original weaving process, the multifilament yarn being positioned in an anticipated seam area; and folding over the PMC base fabric, after weaving the multifilament yarn with the warp yarns, to form a seam loop of the PMC base fabric such that the multifilament yarn is a first one of the weft yarns on a sheet side of the seam loop. Full Article
d Method to produce high-resistance cellulose and hemicellulose fibers from lignocellulosic biomass of sugarcane leaves and buds By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT Method for production of cellulose and hemicellulose fibers from lignocellulose biomass obtained from sugarcane leaves and buds by applying a process comprising the stages of: a) Diminishing the particle size of the lignocellulose biomass to a range between 3 and 15 mm, b) Subjecting the product obtained to treatment with one or more solvents and/or a mixture of specific catalysts, c) Carry out sudden decompression to an atmospheric pressure, d) Collecting the pretreated material in a cyclone, e) Optionally separating the liquid and solid fractions through washing and filterung f) Optionally, treating the solid fraction in a reactor with a mixture of ethanol and chlorine dioxide, d) Wash the product obtained to achieve cellulose efficiency above 50% and of lignin of 5 to 7%, fiber lengtht in a range to 1,5 to 2,7 mm, breaking length (km) of 7,0 -8,9, Burst index (kPam2/g) of 4,5-7,2 and Tear index (mNm2/g) of 8,2-8, The obtained high-resistance cellulose and hemicellulose is especially suitable for the paper production and polymer-type plastics. Full Article
d Web substrate having optimized emboss design By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT The present disclosure provides for a fibrous structure having an initial total wet tensile strength of greater than about 118 g/cm and at least one embossed ply having a surface thereof. The surface has a surface area comprising from about 10.0 percent to about 20.0 percent line embossments. Also, a fibrous structure having at least two plies is disclosed. One of the two plies has an initial total wet tensile strength of greater than about 118 g/cm and at least one embossed ply having a surface thereof. The surface has a surface area comprising from about 10.0 percent to about 20.0 percent line embossments. Full Article
d Paper product having unique physical properties By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A web product having at least two plies is disclosed. One of the at least two plies has a continuous pillow area disposed upon a surface thereof. A first portion of the continuous pillow area has a first width, W1, and a length, L1, and a second portion of the continuous pillow area in contacting engagement and in fluid communication with the first portion has a second width, W2, and a length, L2, wherein, W1≠W2 and L1=L2. The web product has a Basis Weight, BW, value greater than 51.6 gsm and a Dry Bulk, DB, value greater than 15.5 cc/g. Full Article
d Method of making a belt-creped, absorbent cellulosic sheet with a perforated belt By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A method of making a belt-creped absorbent cellulosic sheet. A papermaking furnish is compactively dewatered to form a dewatered web having an apparently random distribution of papermaking fiber orientation. The dewatered web is applied to a translating transfer surface moving at a transfer surface speed. The web is belt-creped from the transfer surface utilizing a generally planar polymeric creping belt provided with a plurality of perforations through the belt, the belt-creping step occurring under pressure in a belt creping nip defined between the transfer surface and the creping belt. The belt travels at a belt speed that is slower than the transfer surface speed, and the web is creped from the transfer surface and redistributed on the creping belt to form a web. The web includes hollow domed regions, connecting regions, and transition areas. The web is dried to produce the belt-creped absorbent cellulosic sheet. Full Article