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Catalytic system for CO2/epoxide copolymerization

The present invention related to a method of manufacturing a polycarbonate including the process of copolymerizing epoxide compound and CO2 using cobalt(III) or chromium(III), where the ligands contains at least 3 ammonium cations, central metal has formal −1 charge, and conjugated anions of the two cationic ammonium groups are acid-base homoconjugation, as catalyst. According to the present invention, the initial induction time can be reduced when the said polycarbonate is manufactured and it is possible to improve the activity of the catalyst and the molecular weight of the obtained polymer.




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Fluorescent nanoprobe for detecting hydrogen peroxide and fabrication method thereof

The present disclosure relates to a sulfonated benzene compound emitting fluorescence by reaction with hydrogen peroxide, aqueous-dispersed fluorescent nanoprobes applicable for real-time detection of hydrogen peroxide, and a fluorescent nanoprobe fabrication method. The fluorescent nanoprobe contains the following sulfonated benzene compound and water.




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***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***Method for producing aqueous acrylamide solution

There is provided a method for producing an aqueous acrylamide solution by reacting a composition including acrylonitrile with water to produce acrylamide, in which the composition including acrylonitrile includes 3 to 15 mg of propionitrile per 1 kg of the total weight of the composition including acrylonitrile. According to the present invention, a production method with which it is possible to suppress acrylamide polymerization without lowering quality and thereby obtain a stable aqueous acrylamide solution can be provided.




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Synthesis of H-phosphonate intermediates and their use in preparing the herbicide glyphosate

The esterfication of hypophosphorous acid is followed by reaction with another molecule of alcohol under the action of a nickel catalyst to provide a green method for the preparation of H-phosphonate diesters. This method avoids the need for any stoichiometric chlorine unlike those based on phosphorous trichloride.




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Halo active aromatic sulfonamide organic compounds and uses therefor

Aromatic N-halosulfonamide organic compounds have been known for over one hundred years. The ability of these compounds to release active halogen ions has been utilized in a range of biocidal and fungicidal applications. This disclosure deals with the use of halo active aromatic sulfonamide organic compounds as odor control and/or biocidal agents in a cleaning solution for use with bovines and other dairy animals.




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Method for producing aqueous acrylamide solution

There is provided a method for producing an aqueous acrylamide solution by reacting a composition including acrylonitrile with water to produce acrylamide, in which the composition including acrylonitrile includes 3 to 15 mg of propionitrile per 1 kg of the total weight of the composition including acrylonitrile. According to the present invention, a production method with which it is possible to suppress acrylamide polymerization without lowering quality and thereby obtain a stable aqueous acrylamide solution can be provided.




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System and method for using state replication between application instances to provide a collaborative desktop environment

Described herein are systems and methods for enabling a collaborative remote desktop environment. The system includes a computing device and a first application instance that has an application state associated therewith. The first application instance includes, or is associated with, a current state component and application data/data files. The system further includes an application launcher that is used to instantiate a second application instance operating either on the same or on a different computing device. The second application instance similarly has an application state associated therewith and is associated with the application launcher. Upon receiving a request from the second user to interact with the first application instance, the application state and the application data/data files are communicated to the application launcher, and the application launcher instantiates the second application instance so that its state is substantially identical to that of the first application instance.




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System and method for identifying exploitable weak points in a network

The system and method described herein may leverage passive and active vulnerability discovery to identify network addresses and open ports associated with connections that one or more passive scanners observed in a network and current connections that one or more active scanners enumerated in the network. The observed and enumerated current connections may be used to model trust relationships and identify exploitable weak points in the network, wherein the exploitable weak points may include hosts that have exploitable services, exploitable client software, and/or exploitable trust relationships. Furthermore, an attack that uses the modeled trust relationships to target the exploitable weak points on a selected host in the network may be simulated to enumerate remote network addresses that could compromise the network and determine an exploitation path that the enumerated remote network addresses could use to compromise the network.




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System and method for supporting video processing load balancing for user account management in a computing environment

A system and method can support user account management in a computing environment. The computing environment can include a video encoding pool to support load balancing and a managing server, such as a privileged account manager server. The video encoding pool includes a set of nodes that are able to perform one or more video processing tasks for another node. Furthermore, the managing server can receive a request from a managed node in the computing environment for delegating a video processing task, and can select one or more nodes from the video encoding pool to load babalance and to perform the video processing task.




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Watch case provided with a cap of hard material

A cap (2) is made of sintered hard metal and has on the inside a cylindrical surface (20) and a frusto-conical surface (21) that are true ground. The cap's cylindrical surface (20) is fitted with radial play around an outer cylindrical surface (9) of an underlying middle (1) and the cap's frusto-conical surface (21) has the same inclination as a subjacent frusto-conical surface (14) on the outside of the middle. The cap (2) and the middle (1) are secured to one another by a ring of deformable material sandwiched between their cylindrical surfaces (9, 20). On the outside the cap (2) is formed over its thicker main portion (18) with a trued and polished surface (22) having the same inclination as its inside frusto-conical surface (21) such as to provide the thicker portion (18) with a parallelogrammatic cross-section.




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Apparatus for recording and quickly retrieving video signal parts on a magnetic tape

In an apparatus for recording and quickly retrieving video signal parts on a magnetic tape, during recording information about the local position of each video signal part is automatically stored in a memory associated with the apparatus, which is designed for storing identifying information for a large number of magnetic tape cassettes. The retrieval of each video signal part on each of the cassettes can be effected substantially without delay in the quick rewind mode of operation.




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Arrangement for automatically switching a videorecorder on and off in the absence of a code signal but in presence of a FBAS signal

The disclosed device enables the recording of television broadcasts which are preprogrammed in a memory. The presence of data lines of the television signal in combination with the presence of a color television signal is checked. When the data lines stop, the video recorder is switched on in real time by a clock time signal.




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Memory storage apparatus, memory controller, and method for transmitting and identifying data stream

A memory storage apparatus, a memory controller and method for transmitting and identifying data streams are provided. The memory controller passes at least a portion of a data stream received from a host system to a smart card chip of the memory storage apparatus. Then, the host system accurately receives a response message from the smart card chip by executing a plurality of read commands. The memory controller is capable of adding a first verification code to a response data stream sent to the host system, and is capable of adding a write token to each of data segments of the response data stream. The host system confirms the accuracy of the response data stream by verifying the first verification code or by verifying the write token of each of the data segments.




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Use of sulfonic acid for recovering glycerol resulting from the triglyceride transesterification reaction

The present invention relates to the use of at least one sulfonic acid for recovering glycerol resulting from a reaction crude from transesterification of glycerides, in particular of triglycerides of vegetable and/or animal origin. The invention also relates to a process for purifying glycerol obtained as a by-product of triglyceride transesterification during the preparation of fatty acids, fatty esters and/or fatty acid salts, and also to a combined process for preparing, on the one hand, fatty acids, fatty esters and/or fatty acid salts and, on the other hand, glycerol, from triglycerides, using at least one sulfonic acid.




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Method for increasing methionine productivity using a mixture of methyl mercaptan and dimethyl sulfide

The present invention relates to a method for increasing L-methionine productivity and organic acid productivity. More particularly, the present invention relates to a method which involves adding a mixture containing methyl mercaptan and dimethyl sulfide at a appropriate ratio to O-acetyl homoserine or O-succinyl homoserine and to an enzyme having an activity of converting methionine precursor into L-methionine, so as to perform an enzyme reaction, to thereby improve the conversion rate of L-methionine and organic acid from the L-methionine precursor, and thus increasing L-methionine yield as compared to conventional method.




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Method for preparing high purity mono-hydrolyzed acyl halide compound

A method for preparing a high purity (e.g. greater than 70 wt. %) mono-hydrolyzed acyl halide compound as a precipitate from solution comprising the steps of preparing a solution comprising: i) at least 80 v/v % of a hydrocarbon solvent, ii) water at a molar concentration greater than its solubility limit within the solvent but less that its solubility limit in solution, iii) a tri-hydrocarbyl phosphate compound, and iv) a polyfunctional acyl halide compound at molar ratio to both water and the tri-hydrocarbyl phosphate compound of at least 1:1.




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Macromolecular nucleotide compounds and methods for using the same

The invention describes new structures of the nucleotide conjugates (nuc-macromolecules) comprising at lease one nucleotide moiety coupled to at least one macromolecular compound via a short linker. These conjugates can be used as substrates for various kinds of polymerizing enzymes in the enzymatic synthesis of nucleic acids. In particular, these compounds can be used for labeling nucleic acids.




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Method to determine responsiveness of cancer to epidermal growth factor receptor targeting treatments

Disclosed herein are methods and reagents for determining the responsiveness of cancer to an epidermal growth factor receptor (EGFR) targeting treatment. The detection of these mutations will allow for the administration of gefitinib, erlotinib and other tyrosine kinase inhibitors to those patients most likely to respond to the drug.




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Antisense oligonucleotides for inducing exon skipping and methods of use thereof

An antisense molecule capable of binding to a selected target site to induce exon skipping in the dystrophin gene, as set forth in SEQ ID NO: 1 to 202.




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Process for triphosphate oligonucleotide synthesis

This invention relates to a process for preparing an oligonucleotide 5'-triphosphate. The process comprises the steps of: (a) synthesizing an oligonucleotide having a 5' hydroxyl moiety; (b) reacting the 5' hydroxyl moiety with a reagent of formula I: to convert the 5' hydroxyl moiety to a 5'-H-phosphonate, wherein R1 and R2 are each independently selected from the group consisting of haloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, cycloalkyl, substituted cycloalkyl, heterocycle, and substituted heterocycle, acyl, phosphoryl, substituted alkyl acyl, substituted heteroalkyl acyl, substituted aryl acyl or substituted heteroaryl acyl, substituted alkyl phosphoryl, substituted heteroalkyl acyl, substituted aryl phosphoryl, and substituted heteroaryl phosphoryl; (c) activating the H-phosphonate of step (b) by reacting the H-phosphonate with a silylating agent, a halogenated oxidizing agent, a nitrogen-containing heteroaryl, or a combination thereof, to form an activated H-phosphonate; and (d) treating the oligonucleotide having an activated H-phosphonate from step (c) with a poly(alkylammonium)pyrophosphate.




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Sulfonamide derivatives of polycyclic dyes used for analytical applications

The invention concerns the production of quinoline compounds containing sulfonic acid groups, the said quinoline compounds and their conversion into dyes containing sulfonic acid groups. The dyes according to the invention are used especially to label analytes, for example to label biomolecules.




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Polynucleotides for use in medicine

The invention refers to polynucleotides selected from the group consisting of a) polynucleotides encoding for the polypeptide RBM20 comprising a P638L mutation for a human polypeptide RBM20, or a P641L mutation for a rat polypeptide RBM20, b) polynucleotides with a reverse complementary sequence of the polynucleotide of a) above, and c) polynucleotides with an identity at least 50% to a polynucleotide of a) or b) above.




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Synthesis and identification of novel RSK-specific inhibitors

A composition comprising an SL0101 [kaempferol 3-O-(3″,4″-di-O-acetyl-α-L-rhamnopyranoside)] derivative compound that has enhanced ability to inhibit RSK activity, relative to the parent compound is provided. The compounds have utility for treating any disease or conditions characterized or associated with excess or undesirable RSK activity. For example the RSK inhibitors of the present invention can be used to reduce the proliferation of neoplastic cells or for inhibiting the establishment or maintenance of an intracellular pathogenic infection by pathogens whose pathogenicity derives in part from the pathogen's ability to impede endosomal/phagosomal maturation in the host cell.




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Reagents useful for synthesizing rhodamine-labeled oligonucleotides

The present disclosure provides reagents that can be used to label synthetic oligonucleotides with rhodamine dyes or dye networks that contain rhodamine dyes.




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Electronic device provided with cryptographic circuit and method of establishing the same

The present invention provides for an electronic device having cryptographic computation means arranged to generate cryptographic data within the device for enhancing security of communications therewith, the device including an onboard power supplying means arranged to provide for the driving of the said cryptographic computational means, and so as to provide a device by way of a manufacturing phase and a post manufacturing phase arranged for distribution and/or marketing of the device, and wherein the step of generating the cryptographic data occurs during the post manufacturing phase.




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Identification and management of unsafe optimizations

Techniques for implementing identification and management of unsafe optimizations are disclosed. A method of the disclosure includes receiving, by a managed runtime environment (MRE) executed by a processing device, a notice of misprediction of optimized code, the misprediction occurring during a runtime of the optimized code, determining, by the MRE, whether a local misprediction counter (LMC) associated with a code region of the optimized code causing the misprediction exceeds a local misprediction threshold (LMT) value, and when the LMC exceeds the LMT value, compiling, by the MRE, native code of the optimized code to generate a new version of the optimized code, wherein the code region in the new version of the optimized code is not optimized.




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Diagnostic radio frequency identification sensors and applications thereof

An integrated passive wireless chip diagnostic sensor system is described that can be interrogated remotely with a wireless device such as a modified cell phone incorporating multi-protocol RFID reader capabilities (such as the emerging Gen-2 standard) or Bluetooth, providing universal easy to use, low cost and immediate quantitative analyses, geolocation and sensor networking capabilities to users of the technology. The present invention can be integrated into various diagnostic platforms and is applicable for use with low power sensors such as thin films, MEMS, electrochemical, thermal, resistive, nano or microfluidic sensor technologies. Applications of the present invention include on-the-spot medical and self-diagnostics on smart skin patches, Point-of-Care (POC) analyses, food diagnostics, pathogen detection, disease-specific wireless biomarker detection, remote structural stresses detection and sensor networks for industrial or Homeland Security using low cost wireless devices such as modified cell phones.




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MRI-guided localization and/or lead placement systems, related methods, devices and computer program products

MRI compatible localization and/or guidance systems for facilitating placement of an interventional therapy and/or device in vivo include: (a) a mount adapted for fixation to a patient; (b) a targeting cannula with a lumen configured to attach to the mount so as to be able to controllably translate in at least three dimensions; and (c) an elongate probe configured to snugly slidably advance and retract in the targeting cannula lumen, the elongate probe comprising at least one of a stimulation or recording electrode. In operation, the targeting cannula can be aligned with a first trajectory and positionally adjusted to provide a desired internal access path to a target location with a corresponding trajectory for the elongate probe. Automated systems for determining an MR scan plane associated with a trajectory and for determining mount adjustments are also described.




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Hinged reusable endocavity needle guide

A reusable needle guide suitable for an ultrasonic probe to be use for an endocavity examination of a patient is disclosed. The needle guide basically comprises at least a first and second guide members and a mounting (e.g., clamp) assembly. The clamp assembly serves to releasably mount the needle guide on the probe. The first guide member has a first passageway-forming surface. The second guide member has a second passageway-forming surface. The guide members are connected together to enable them to be pivoted from a closed orientation to an open orientation and vice versa. The first and second passageway-forming surfaces form an elongated passageway to guide a needle therethrough when in the closed orientation. The first and second passageway-forming surfaces are disposed at an angle to each other when they are in the open orientation, whereupon the first and second passageway-forming surfaces can be readily cleaned.




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Esters of (acyloxymethyl)acrylamide, a pharmaceutical composition containing them, and their use as inhibitors of the thioredoxin—thioredoxin reductase system

The subject of the present invention are novel esters of (acyloxymethyl)acrylamide, a pharmaceutical composition containing them and their use in the production of drugs for the prophylaxis or treatment of oncogenic diseases and diseases connected with increased cell proliferation.




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Method of labeling sulfenic acid-containing proteins and peptides

A method of labeling a sulfenic acid (—SOH) group of a cysteine residue in a protein; or peptide, comprises contacting said protein or peptide with a beta-ketoester to covalently couple said beta-ketoester to said cysteine residue and form a beta-ketoester-labeled cysteine residue in said protein or peptide.




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Method for inhibiting crystal growth rate of amide compound and method for producing molded article of polyolefin-based resin

A method for inhibiting the crystal growth rate of an amide compound present in a molten polyolefin-based resin and a method for producing a polyolefin-based resin molded article are provided. A phenol compound is incorporated into an amide compound-containing polyolefin-based resin such that a weight ratio, amide compound:phenol compound, is 60:40 to 10:90.




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Compound for use in peptide synthesis

The present invention generally relates to processes and methods of peptide and protein synthesis. The present invention also relates to specific compounds for use in such processes and methods. It is shown herein that peptides with a C-terminal tertiary N,N-bis(2-mercaptoethyl)-amide (BMEA) undergo N-to-S acyl transfer at weakly acidic pH to form a transient thioester which can be captured for direct ligation with a cysteinyl peptide. These C-terminal BMEA peptides are easily prepared with standard Fmoc solid-phase synthesis protocols, thus giving a very convenient access to the thioester components for native chemical ligation.




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Ester group-containing tetracarboxylic acid dianhydride, novel polyesterimide precursor derived therefrom, and polyesterimide

A polyimide demonstrates low coefficient of hygroscopic expansion and low water absorption coefficient when used as an insulation film. The polyimide is derived from a tetracarboxylic acid dianhydride containing ester group expressed by the general formula below, and a polyester imide precursor: wherein R is independent and represents a straight or branched-chain alkyl group with 1 to 6 carbon atoms or straight or branched-chain alkoxyl group with 1 to 6 carbon atoms, n is an integer of 0 to 4, and m is an integer of 2 to 4, but wherein, if m =2, n is an integer of 1 to 4.




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Low molecular weight cationic lipids for oligonucleotide delivery

The instant invention provides for novel cationic lipids that can be used in combination with other lipid components such as cholesterol and PEG-lipids to form lipid nanoparticles with oligonucleotides. It is an object of the instant invention to provide a cationic lipid scaffold that demonstrates enhanced efficacy along with lower liver toxicity as a result of lower lipid levels in the liver. The present invention employs low molecular weight cationic lipids comprising at least one short lipid chain to enhance the efficiency and tolerability of in vivo delivery of siRNA.




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Separation of ammonium chloride from the gas phase of an isocyanate production process

Isocyanates are produced in the gas phase and by-products such as ammonium halides are selectively separated from the gas phase by desublimation.




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Modified layered double hydroxide (LDH) and a process for preparation thereof for C—C bond forming reactions

The present invention relates to a covalently organo-modified LDH (LDH/APTES) was found to be an efficient and reusable heterogeneous catalyst for C—C bond forming reactions (i.e. Aldol condensation, Knoevenagel condensation, Henry reaction, Michael addition). More particularly, this catalyst shows consistent activity for several cycles in C—C bond forming reaction. These catalysts were successfully characterized by XRD, FT-IR, 29Si CP MAS NMR.




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Method for preparing alkyl lactate and a method for preparing lactamide using the same

This disclosure relates to a method for preparing alkyl lactate with high yield and high selectivity, comprising the step of reacting glycerol with water or alcohol in the presence of a catalyst. In addition, the present invention provides a method for efficiently preparing lactamide using the alkyl lactate.




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Interpenetrating polymer networks derived from silylated triglyceride oils and polysiloxanes

A composition of matter comprising an interpenetrating polymer network of a combination of a silanol-containing polysiloxane phase and a silylated triglyceride oil phase. The two phases are mixed and covalently bound to each other via siloxane crosslinks. A method for producing interpenetrating polymer networks. The method comprises providing triglycerides from oils or fats and reacting the triglycerides with a reactive silane to form a silylated triglyceride oil. The silylated triglyceride oil and a silanol terminated polysiloxane are emulsified with water in a predetermined ratio. Thereafter, crosslinking agents are added and the water is removed from the emulsions providing siloxane crosslinks between the two intimately mixed immiscible phases.




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Mixed-valent transition metal-phosphoranimide catalysts

Phosphoranimide-metal catalysts are disclosed. The catalysts comprise first row transition metals such as nickel, cobalt or iron. The hydrocarbon-soluble catalysts have a metal to anionic phosphoranimide ratio of 1:1, and have no inactive bulk phase and no dative ancillary ligands. The electronic state of the clusters can be adjusted to optimize catalytic activity for a range of commercially important reductive transformations, including hydrodesulfurization. A method of synthesis of these catalysts by anionic metathesis of a halide substituted precursor followed by oxidation is also disclosed.




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Method for producing inorganic oxide particles

The present invention relates to a method for producing inorganic oxide particles, comprising at least the following steps of: coagulating a dispersion obtained by carrying out the hydrolysis reaction and the polycodensation reaction of a metal alkoxide in the presence of a basic catalyst; filtering the dispersion to obtain particles; anddrying the particles, whereinthe step of coagulating the dispersion is carried out by adding a coagulant comprising at least one compound selected from the group consisting of carbon dioxide, ammonium carbonate, ammonium hydrogen carbonate and ammonium carbamate to the dispersion. The inorganic oxide particles obtained by the method of the present invention have high purity and are excellent in flowability.




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Method for producing compound with carbonyl group by using ruthenium carbonyl complex having tridentate ligand as dehydrogenation oxidation catalyst

Provided by the present invention is a method for efficient oxidation of alcohols by using, as a catalyst for dehydrogenation oxidation, a ruthenium complex which can be easily produced and easily handled and is obtainable at a relatively low cost. The invention relates to a method of producing a compound having a carbonyl group by dehydrogenation oxidation of alcohols by using as a catalyst the ruthenium carbonyl complex represented by the following general formula (1) RuXY(CO)(L) (1) (in the general formula (1), X and Y may be the same or different from each other and represent an anionic ligand, and L represents a tridentate aminodiphosphine ligand).




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Gaseous compositions comprising hydrogen fluoride and an alkylated ammonia derivative

A method of removing at least a portion of a silicon oxide material is disclosed. The silicon oxide is removed by exposing a semiconductor structure comprising a substrate and the silicon oxide to an ammonium fluoride chemical treatment and a subsequent plasma treatment, both of which may be effected in the same vacuum chamber of a processing apparatus. The ammonium fluoride chemical treatment converts the silicon oxide to a solid reaction product in a self-limiting reaction, the solid reaction product then being volatilized by the plasma treatment. The plasma treatment includes a plasma having an ion bombardment energy of less than or equal to approximately 20 eV. An ammonium fluoride chemical treatment including an alkylated ammonia derivative and hydrogen fluoride is also disclosed.




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Dihydroxypropylamide-modified polysiloxane compound

A modified polysiloxane compound is represented by following Formula (1), in which R1 to R9 represent hydrocarbon groups selected from linear alkyl groups having 1 to 20 carbon atoms, branched chain alkyl groups having 3 to 6 carbon atoms, and cyclic alkyl groups having 3 to 6 carbon atoms; p and q represent average numbers of siloxane units indicated in parentheses, where p is a number of 1 or more and q is a number of 2 or more; and “A” represents a group selected from a group represented by following Formula (2), a group represented by following Formula (3), and hydrogen atom. The modified polysiloxane compound has at least a siloxane unit wherein “A” is the group represented by following Formula (2), and a siloxane unit wherein “A” is the group represented by following Formula (3).




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Process for recovering homogeneous metal hydride catalysts

The present invention relates to a process for recovery of homogeneous metal hydride catalyst from a reactor stream as catalyst suitable for recycle to a reactor comprising the steps of: removing a stream from a reactor, said stream comprising the homogeneous metal hydride catalyst; contacting the stream with a solid acidic absorbent under process conditions which allow at least some of the metal to become bound to the absorbent; subjecting the metal bound to the absorbent, under process conditions which allow desorption of the metal, to a fluid stripping medium comprising hydrogen and solvent; and recovering the active metal hydride catalyst.




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Synthesis of phosphinimide coordination compounds

Methods to make R13P═N—TiCl3 and (1-R2-Indenyl)Ti(N═PR13)Cl2, where R1 is independently selected from C1-30 hydrocarbyl radical which is unsubstituted or further substituted by one or more halogen atom, a C1-8 alkoxy radical, a C6-10 aryl radical, a C6-10 aryloxy radical, an amido radical, a silyl radical, and a germanyl radical; P is phosphorus; N is nitrogen (and bonds to the metal M); R2 is a substituted or unsubstituted alkyl group, a substituted or an unsubstituted aryl group, or a substituted or unsubstituted benzyl group, wherein substituents for the alkyl, aryl or benzyl group are selected from alkyl, aryl, alkoxy, aryloxy, alkylaryl, arylalkyl and halide substituents. The method to make R13P═N—TiCl3 combines a titanium species TiCl3(OR) where R is an alkyl or aromatic group, with a trimethylsilyl phosphinimide compound R13P═N—SiMe3 in the presence of solvent, to give the titanium complex R13P═N—TiCl3. The method to make (1-R2-Indenyl)Ti(N═PR13)Cl2 consists of deprotonating 1-R2-indene with an appropriate base, followed by reaction with R13P═N—TiCl3.




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Method for preparing diamino-dianhydro-dideoxyhexitols, particularly preferably 2,5-diamino-1,4:3,6-dianhydro-2,5-dideoxy-D-hexitol

Method for preparing diamino-dianhydro-dideoxyhexitols, particularly 2,5-diamino-1,4:3,6-dianhydro-2,5-dideoxy-D-hexitol. The invention related to a method for preparing diamino-dianhydro-dideoxyhexitols, particularly preferably 2,5-diamino-1,4:3,6-dianhydro-2,5-dideoxy-D-hexitol.




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Rosin derived epoxides and curing agents

An epoxide agent for an epoxy resin system, the epoxide agent comprising at least one non-acid functional rosin moiety and at least one epoxide moiety. Another embodiment is a curing agent for an epoxy resin system comprising at least one non-acid functional rosin moiety and at least one moiety that is reactive with an epoxy.




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Recovery of lactic acid values from a meso-lactide stream

Lactic acid equivalents are recovered from a starting lactide stream by catalytically racemizing a portion of the lactide in the stream at a temperature of 180° C. or below. This increases the proportion of two species of lactide (i.e., at least two of S,S-, R,R- or meso-lactide) at the expense of the third species. The racemized mixture so obtained can be separated to recover some or all of one or more of the lactide species from the remaining lactide species, by a process such as melt crystallization or distillation. Impurities in the starting lactide stream usually are retained mostly in the remaining meso-lactide, so a highly purified S,S- and/or R,R-lactide stream can be produced in this manner. Such a purified S,S- and R,R-lactide stream is suitable for polymerization to form a polylactide.




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Histone deacetylase inhibitor of benzamides and use thereof

Disclosed in the present invention is a novel histone deacetylase inhibitor of benzamides and use thereof. The inhibitor has good efficacy in treating diseases caused by abnormal gene expression, such as tumors, endocrine disorders, immune system diseases, genetic diseases and nerve system diseases. The histone deacetylase inhibitor of benzamides is a compound of the following general chemical structural formula (I) or a salt thereof.