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7615606 |
Method and device for continuously producing copolyamides with melting points greater than 265° C.
The invention relates to a method for continuously producing copolyamides with melting points greater than approximately 265° C. According to the invention, in a continuous process, partially...
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7608309 |
Resin composition, film and image display device utilizing the resin composition
A resin composition containing a polymer comprising a repeating unit having a spiro structure and/or a cardo structure. The resin composition has superior heat resistance and is utilized to produce...
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7601796 |
Synthesis of hybrid block copolymers and uses thereof
The present invention relates to the field of polymer chemistry and more particularly to multiblock copolymers and methods of preparing the same.
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7601383 |
Coating construct containing poly (vinyl alcohol)
A method of forming a surface layer that includes a hydroxyl polymer on a substrate coating on a medical device is provided.
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7585551 |
Polyimide resin polymer and alignment film materials containing same for liquid crystal display
The invention relates to a polyimide resin polymer which contains at least one repeating unit selected from those of formula (A-1) and formula (A-2) below as polymerization units,
wherein P 1 ,...
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7579429 |
Cyclic alkyl substituted glycolides and polylactides therefrom
Cyclic alkyl, particularly cyclohexyl, substituted glycolides and polylactides are described. The polylactides have a high glass transition temperature and improved clarity.
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7563557 |
Polyamide
A polyamide having a structure represented by the chemical formula (1):
wherein m and n represent an integer satisfying m≧1, n≧1, 2≦(m+n)≦150, 0.3≦m/(m+n)≦0.9, R 1 and R 2 ...
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7534852 |
Polyanhydrides with therapeutically useful degradation products
An aromatic polyanhydride comprising a repeating unit having the structure
is disclosed, wherein Ar and R are selected so that the aromatic polyanhydride hydrolyzes to form a therapeutic...
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7527841 |
Method for dissolving PPTA in sulfuric acid using a twin screw extruder
Described is a method for dissolving PPTA or copolymers thereof in sulfuric acid using a twin screw extruder having transporting, mixing, and kneading elements with an entering zone, an...
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7504531 |
Processes for preparing difunctional compounds
Processes for preparing diacryl-functional compounds are provided. Processes include reacting AB 2 monomers with acryloyl halides, and then further reacting with long-chain, mono-functional...
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7491752 |
Photoactive materials
Photoreactive dendrimers comprising a core portion, branching units and terminal groups, wherein at least one terminal group and/or branching unit is a photoreactive group and wherein the photo...
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7491408 |
Polymer, bioabsorbable material and film for preventing tissue fusion
A novel A 1 -B-A 2 polymer having a number average molecular weight of 10000 to 100000 is provided that has excellent bioabsorbability so as to disappear in a predetermined period of time even...
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7485695 |
Polycarbonates containing low levels of methyl salicylate prepared by a melt polymerization in a reactive extruder
Polycarbonate is prepared by reactive extrusion on a reactive extruder. A method incorporates the steps of introducing a polycarbonate oligomer, an activated carbonate, and a transesterification...
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7485405 |
Photo-curable resin composition comprising a polyimide, a process for forming a pattern therewith, and a substrate protecting film
The present invention relates to a photocurable resin composition, wherein the composition comprises:(A) a polyimide resin having one or more primary alcoholic groups with an alcoholic equivalent...
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7470765 |
Method for producing polyamides
A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group, and...
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7465780 |
Polyimide comprising sulfonic acid group at the terminal of side chain, and polymer electrolyte and fuel cell using the same
The present invention is related to a polyimide, which has high ionic conductivity and good structural stability, does not decompose even under low humidity, and is inexpensive, and a polymer...
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7446155 |
Cross-linked networks containing nanoscopic reinforcing domains
Hyperbranched polymers having a plurality of at least two different types of functional groups are described. Specific embodiments include hyperbranched polymers having functional groups of a first...
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7428857 |
Gear, speed reduction gear using the same, and electric power steering apparatus using the same
A gear composed of a polymer blend or a copolymer of PA66 and PA6 which contains a part having a PA66 molecular structure and a part having a PA6 molecular structure in a weight ratio of...
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7408020 |
Composition for LC alignment film using diamine having dendron side chain
Disclosed herein is an LC aligning agent using diamine having dendron side chains. In detail, the present invention relates to a composition for an LC alignment film which employs diamine having...
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7396898 |
Diamine, acid dianhydride, and reactive group containing polyimide composition prepared therefrom and process of preparing them
The present invention relates to a novel diamine, a novel acid dianhydride, and a novel composition containing a polyimide produced from such diamine and acid dianhydride. Specifically, the present...
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7393913 |
Polyamides
Polyamide whose main chain contains a chemically bound N-alkyllactam, and processes for preparing such a polyamide and fibers, films and moldings comprising such a polyamide.
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7388048 |
Flexible semiaromatic polyamides with a low moisture uptake
The present invention relates to a flexible semiaromatic polyamide composition with a low moisture uptake comprising, by weight, the total being 100:
60 to 99.5% (preferably 70 to 93%) of at...
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7381788 |
Method for continuous production of polyamide
Provided is a continuous production method of a polyamide with stabilized polymerization degree and good quality, particularly an aromatic-containing polyamide. A continuous production method of a...
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7364879 |
Stable biodegradable, high water absorbable polyglutamic acid hydrogel by 3-dimensional cross-linking and its preparation method
The present invention relates to a method for the production of a stable biodegradable, high water absorbable γ-polyglutamic acid (γ-PGA) hydrogel by directly cross-linking
(A) a...
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7341759 |
Electrically conductive polymer, sensor using the same, and method for detecting target molecule using the sensor
A novel electrically conductive polymer, a sensor using the electrically conductive polymer, and a method for detecting a target molecule that hybridizes to a probe, using the sensor, are provided....
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7329721 |
Maleamic acid polymer derivatives and their bioconjugates
The present invention is directed to maleamic acid derivatives of water soluble polymers, to chemically stable water-soluble polymer succinamic acid-active agent conjugates, and to methods for...
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7309754 |
Stable encapsulant fluid capable of undergoing reversible Diels-Alder polymerization
An encapsulant fluid is provided comprising a mixture of a diene-containing compound and a dienophilic compound. At least one of the diene-containing and the dienophilic compounds is protected so...
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7307140 |
Polyaspartimides
The present invention relates to novel polyaspartimides, their method of production and the use of these polyaspartimides as reactive components for polyisocyanates in two-component polyurethane...
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7307139 |
Diamine compound having dendron side chain and liquid crystal alignment material produced using the same
Disclosed herein are a novel diamine compound having a dendron side chain and a liquid crystal alignment material produced using the diamine compound. Specifically, the diamine compound is used to...
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7300972 |
Water-soluble polyimide precursor, aqueous polyimide precursor solution, polyimide, impregnated material with polyimide binder, and laminate
A water-soluble polyimide precursor, which can be suitably applied for aromatic polyimides and exhibits a low reduction in heat resistance and mechanical properties, an aqueous solution of the...
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7297756 |
Melt-adhesives for sealing off rocks or building materials
Polyamide hot-melt adhesives based on the reaction products of polymeric fatty acids, C 14 -C 18 monocarboxylic acids, C 6 -C 12 dicarboxylic acids and diamines which do not contain any...
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7294683 |
Non-gelled curable compositions containing imide functional compounds
The present invention is directed to a non-gelled, curable composition including at least one compound having a plurality of imide functional groups. The compound in particular contains a reaction...
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7291695 |
Stable wet strength resin
A method of stabilizing an aqueous solution of polyaminoamide-epichlorohydrin resin comprising adjusting the pH of the solution to less than about 3 with strong acid and then adding to the solution...
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7285675 |
N-hydroxyalkyltrimellitimide esters and bis-(trimellitimide) esters and method of making
The present invention relates to trimellitic anhydride imide ester, a method of making it, and polyesters or polyamides that can be modified with trimellitic anhydride (TMA) to provide better heat...
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7285601 |
Inherently crosslinkable polyamides
A polyamide which contains a monoolefinically unsaturated compound chemically bonded at the end of the polymer chain, a process for preparing this polyamide, a polyamide obtainable by crosslinking...
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7279543 |
Anti-bacterial polymer and method for the preparation thereof, anti-bacterial polymer film and method for the preparation thereof, and article having such a film on the surface thereof
An anti-bacterial polymer of the present invention consists of a vapor deposition-polymerization reaction product of a diaminobenzoic acid monomer or halogen atom-containing diamine monomer and a...
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7258920 |
Multiphase fiber materials and compositions, methods of manufacture and uses thereof
A pre-fiber composition is disclosed herein that includes: a) a first fiber constituent having a first melting point; b) a second fiber constituent having a second melting point; and c) a gelling...
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7253252 |
Water-soluble aspartate
The present invention relates to new water-soluble polyaspartic esters and also to their use in aqueous coating compositions.
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7238770 |
Methods of making imide-modified polyester resins
The present invention relates to methods of making imide-modified polyester imide resins. The present invention further relates to forming these imide-modified polyester imide resins into articles,...
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7230067 |
Masterbatch and production method of oxygen-absorbing molded article
In the present invention, a masterbatch is produced by melt-mixing a metal compound (B) with a reactive thermoplastic resin (C). The oxidizable polyamide (A) is produced by polycondensing a diamine...
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7229580 |
Preparation of porous poly(aryl ether) articles and use thereof
The preparation and use of novel porous poly(aryl ether) articles is disclosed. The porous articles are prepared from blends of poly(aryl ether) polymers with polyimides by selectively decomposing...
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7220802 |
Self-crosslinking alkyd dispersion
A coating composition is produced by forming an aqueous dispersion of a crosslinking agent and a resin that comprises the reaction product of an alkyd polymer, an optional surfalkyd, diacetone...
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7208566 |
Imide-linked maleimide and polymaleimide compounds
The invention is based on the discovery that a remarkable improvement in the performance of maleimide thermosets can be achieved through the incorporation of imide-extended mono-, bis-, or...
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7193020 |
Film and laminate of the same
A film comprising a resin alloy of a liquid-crystalline polyester, a polyimide and an optional inorganic filler is provided. The film is excellent in heat resistance and dimensional stability.
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7183352 |
Water-dilutable polyesters with cyclic imide structure
The present invention relates to novel polyesterpolyols with cyclic imide structure and to their use in coating compositions.
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7173102 |
Facially amphiphilic polymers as anti-infective agents
Facially amphiphilic polymers and articles made therefrom having biocidal surfaces are disclosed. The polymers can inhibit the growth of microorganisms in contact with the surface or in areas...
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7169879 |
Bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenyl phosphine oxide derivative and synthesis thereof
The present invention relates to bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenylphosphi
ne oxide compounds and synthesis thereof, more particularly to novel...
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7160978 |
Aromatic amide polymer systems and methods for making the same
A method of making amide polymers with improved back-bone rigidity, stability and/or planarity through the promotion of intra-molecular interactions is disclosed. Amide polymers, in accordance with...
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7157525 |
Thermoplastic elastomer resin
The present invention relates to a thermoplastic elastomer resin which has good melt viscosity, melt tension, and thermal resistance, wherein it is prepared by introducing a chain extender and a...
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7148314 |
Process for preparation of functionalized polyimides
A method for preparation of a sulfonic and or sulfonic acid salt containing polyimide resins comprising melt reaction of a polyimide resin with an organic compound, wherein the organic compound...
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