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7064113 |
Resin composition, method of molding the same, and method of recycling resin composition
A resin composition, which comprises a biodegradable polymer and a biodegradable liquid crystalline polymer. The resin composition is useful for producing molded resin articles having good...
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7057019 |
Crosslinked albumin hydrogels
Materials, methods, and compositions for making crosslinked albumin hydrogels are included in the application. Embodiments include a biocompatible material of albumin crosslinked with an...
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7056988 |
Polymer compound, process for producing the same, molded article and process for producing the same
A polymer compound contains a cyclic structure represented by the following general formula (1):
wherein each of X and Y represent an alkylene group or the like, where X and Y may be the same...
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7048753 |
Coated, slow-absorbing textile constructs for sutures and tissue engineering
The present invention is directed to crystalline copolymers of l-lactide and a minor portion of a cyclic monomer, preferably ε-caprolactone or trimethylene carbonate or both. The present...
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7034102 |
Polylactic acid resin composition and molded article thereof, and process of producing the molded article
A polylactic acid resin composition comprising 100 parts by weight of a polylactic acid, (A) 0 to 10 parts by weight of a phenol antioxidant, and (B) 0.01 to 10 parts by weight of at least one...
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7026437 |
Amorphous polymeric polyaxial initiators and compliant crystalline copolymers therefrom
An absorbable crystalline, monocentric polyaxial copolymer comprising a central carbon or nitrogen atom and at least three axes, each of which includes an amorphous flexible component adjacent and...
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7019106 |
Lactic acid polymer and process for producing the same
A process for producing a lactic acid polymer of 15,000 to 50,000 in weight-average molecular weight, the content of polymeric materials having not more than about 5,000 in weight-average molecular...
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7012126 |
Coumarin endcapped absorbable polymers
The present invention includes photocurable, liquid polymers incorporating coumarin ester endgroups into their molecular structure, which polymers are crosslinked upon irradiation with ultraviolet...
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7012106 |
Reinforced implantable medical devices
The present invention is directed to reinforced, biocompatible, biodegradable compositions suitable for use in implantable medical devices and medical devices made at least in part from such...
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6984393 |
Biodegradable elastomer and method of preparing same
This invention relates to thermally crosslinked and photo-crosslinked biodegradable and biocompatible elastomeric polymers. The elastomers can be used for biomedical devices such as needles,...
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6984426 |
Biodegradable bag
A biodegradable film formable into biodegradable bags includes the blended product of polylactic acid and a suitable biodegradable polymeric resin. The blended product includes from about 5% to...
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6916547 |
Multi-functional unsaturated polyester polyols
Novel multifunctional unsaturated polyester polyols, UV-curable top coat formulations including these polyols, and a one-step process for preparing these polyols, are disclosed. Surface coverings...
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6914101 |
Polyester block copolymer composition
The present invention relates to a polyester block copolymer composition which is obtained by reacting 0.5 to 5.0 parts by weight of an epoxy compound (C) having two or more functionalities with...
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6911522 |
Filled epsilon-caprolactone based polymer compositions, method for preparing same and articles based on said compositions
Compositions based on ε-caprolactone polymer, comprising at least one ε-caprolactone polymer and calcium carbonate. Process for preparing these compositions, which are used for manufacturing...
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6911521 |
Polyhydroxyalkanoate that comprises unit having substituted or unsubstituted (phenylmethyl) sulfanyl structure in side chain thereof and process for producing the same
A polyhydroxyalkanoate that comprises a unit represented by the following chemical formula (1):
wherein R1 is a substituent of an aromatic ring selected from the group consisting of H, CH 3 ,...
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6890518 |
Compositions of chemically modified insulin
The present invention provides active, hydrophilic polymer-modified derivatives of insulin. The insulin derivatives of the invention are, in one aspect, suitable for delivery to the lung and...
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6887974 |
Crosslinking agents and methods of use
Polymeric crosslinking agents are disclosed that have an inert water soluble polymeric component, biodegradable components, functional components reactive with chemical groups on a protein, for...
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6875839 |
Method for producing polylactic acid and corresponding device
The invention relates to a method for producing polylactic acid, comprising the steps of obtaining lactic acid from starchy agricultural products by fermentation, ultrapurification of the lactic...
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6866860 |
Cationic alkyd polyesters for medical applications
The present invention is directed to medical devices or pharmaceutical composition, each containing a synthetic, biodegradable, biocompatible polymer that is the reaction product of a polybasic...
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6861538 |
Process for the preparation of cyclic lactic acid oligomer
The object of the present invention is to provide a novel method for effectively producing a cyclic lactic acid oligomer, and a cyclic lactic acid oligomer produced by the method. According to the...
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6858367 |
Binder resin containing novel polyhydroxyalkanoate, toner containing the binder resin, and image-forming method and image-forming apparatus which make use of the toner
A binder resin which forms a resin powdery product such as a toner for developing electrostatic latent images. The binder resin comprises a biodegradable resin comprising a polyhydroxyalkanoate...
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6841597 |
Ternary mixture of biodegradable polyesters and products obtained therefrom
The invention relates to a mixture of biodegradable polyesters comprising: (A) a polyhydroxy acid of the poly-ε-caprolactone type and its copolymers, (B) aliphatic polyester, and (C) a polymer of...
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6841617 |
Thermogelling biodegradable aqueous polymer solution
Disclosed is a thermogelling biodegradable aqueous polymer solution useful in providing a bioactive agent delivery system. The present invention provides a thermogelling biodegradable aqueous...
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6838037 |
Method for making biodegradable polyhydroxyalkanoate copolymers having improved crystallization properties
Methods for enhancing the rate of a first biodegradable polyhydroxyalkanoate having a copolymer, or a blend thereof, of at least two randomly repeating monomer units, and has a melting point Tm1,...
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6833460 |
Preparation and use of gamma-butyrolactones as cross-linking agents
The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted buytrolactone...
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6831149 |
Polymerization process using mono-and di-functional initiators to prepare fast crystallizing polylactone copolymers
The present invention is directed to a process for making an absorbable polylactone copolymer prepared in part from about 2 to about 80 mole percent glycolide, which process utilizes a combination...
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6828412 |
Degradable polymers
A polymer comprising: a polymeric backbone comprising at least one unit having the structure (I), wherein R-R 4 comprise groups selected from the group consisting of H, C 1 -C 12 alkyl, C 6 -C 18...
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6825285 |
Biodegradable polyhydroxyalkanoate copolymers having improved crystallization properties
Compositions having improved crystallization properties and physical properties including a continuous phase of a first biodegradable polyhydroxyalkanoate comprising a copolymer, or a blend...
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6815079 |
Opaque film made of polylactic acids
The invention relates to an opaque biaxially oriented film made of at least one layer that contains COC. This layer contains a cycloolefin copolymer (COC) in a concentration of 0.5 to 30 wt. % with...
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6808907 |
Method and apparatus for producing polyhydroxyalkanoate
The present invention provides a method for producing highly purified polyhydroxyalkanoate (PHA) with high yield, by removing cell components other than PHA from cells containing PHA. Moreover, the...
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6808795 |
Polyhydroxyalkanoate copolymer and polylactic acid polymer compositions for laminates and films
Environmentally degradable films comprising a blend of polyhydroxyalkanoate copolymer and a polylactic acid polymer or copolymer are disclosed. Laminates having a first layer comprising a PHA...
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6806346 |
Copolymerization of cyclic ester oligomers
Chemically different cyclic ester oligomers can be copolymerized to form copolyesters whose properties can be tailored by the choice of cyclic ester oligomers used. The copolyesters formed are...
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6806353 |
Biodegradable plant protein composites and related methods
A biodegradable plant protein composite is described. The composite includes a plant protein, which is preferably soy protein, and a polylactide. The composite also preferably includes a...
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6803443 |
Impact modifier and polyester composition containing the modifier
A lactic acid polyester (III), having a lactic acid unit (I) and a polyester unit (II) at a weight ratio within the range of 10:90 to 90:10, a weight average molecular weight of 10,000 or more, and...
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6797788 |
Thermoplastic aliphatic polyester compositions, preparation method and uses thereof
The invention concerns thermoplastic aliphatic polyester compositions characterized by a melt flow index (RMFI) ranging between 1.1 and 2.5. The invention also concerns a method for preparing said...
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6794484 |
Crystallizable polylactone copolymers prepared from mono- and di-functional polymerization initiators
The present invention is directed to absorbable polylactone copolymers prepared in part from about 2 to about 80 mole percent glycolide, utilizing a combination of a monofunctional polymerization...
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6787584 |
Dental/medical compositions comprising degradable polymers and methods of manufacture thereof
Curable compositions comprising degradable macromonomers having one or more terminal acrylate or methacrylate functionality, a curing composition, a filler composition comprising bioactive...
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6777527 |
Polymers that contain alcoxylated, condensed alkaline amino acids and method of producing said polymers
Alkoxylated, condensed basic amino acid-containing polymers comprising the addition products of alkylene oxides with homocondensates of basic amino acids, condensates of mixtures of two or more...
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6770717 |
Sequentially ordered biodegradable lactide (glycolide or lactide/glycolide)&egr -caprolactone multi-block copolymer and process for the preparation thereof
Disclosed is a sequentially ordered biodegradable lactide (or glycolide or lactide/glycolide)/ε-caprolactone multi-block copolymers having proper degradation properties and enhanced mechanical...
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6767987 |
Lowly lactone-modified reactive monomer composition, acrylic polyol resins produced with the same, curable resin compositions and coating compositions
This invention provides a hydroxyalkyl(meth)acrylate composition modified by a small amount of lactones in which a proportion of monomers having two or more continuous chains of lactone is less...
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6756472 |
Process for producing polymer
A process for producing a biodegradable polymer having free carboxyl at the ω-end charcterized by polymerizing a cyclic ester compound in the presence of a hydroxymonocarboxylic acid derivative...
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6747121 |
Poly(L-lactide-co-glycolide) copolymers, methods for making and using same, and devices containing same
The present invention relates in general to implantable, resorbable copolymers containing L-lactide and glycolide repeat units, and in particular to terpolymers containing L-lactide, glycolide, and...
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6740415 |
Powder paint binder composition
The invention relates to a radiation curable powder paint binder composition comprising a radiation curable compound being a mono or multi valent carboxylic ester of a β, γ, δ, or...
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6740731 |
Degradation control of environmentally degradable disposable materials
The present invention is directed to a method for reducing waste accumulation by using an environmentally degradable disposable material. The disposable material, which includes a hydroxycarboxylic...
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6730772 |
Degradable polymers from derivatized ring-opened epoxides
A polymer of a ring-opened functionalized epoxide is formed by the polymerization of a functionalized epoxide monomer having the structure E-CHR-G wherein E represents an epoxide group, R is...
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6727342 |
Use of polyester resins for the production of articles having good properties as barriers to water vapor
Polyester resins formed by recurring units X=[O—(CH 2 ) n —OCO—(CH 2 ) m —CO] and/or Y=[O—(CH 2 ) k —CO], where the half-sum of n+m is equal to or greater than 6 and k is a number equal...
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6716957 |
Bioabsorbable materials and medical devices made therefrom
A bioabsorbable material such as a terpolymer of poly-(L-lactide/D-lactide/glycolide). The material may consist of 85 molar percent L-lactide, 5 molar percent D-lactide, and 10 molar percent...
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6713596 |
Method for anionic polymerization of lactames
The invention relates to a novel process for the anionic polymerization of lactams, in which: (a) (i) a catalyst capable of creating a lactamate and (ii) a regulator chosen from the amides of...
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6713175 |
Biaxially stretched biodegradable film
An object is to provide a biaxially stretched film which allows tacking, is heat-stickable, is less liable to unevenness in thickness, breakage, whitening, unevenness, etc. i.e. has stretching...
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6706058 |
Resorbable, synthetic, medical coating material, method for its manufacture and its use in medicine
The invention relates to a coating material for medical treatment, particularly a wound contact material, of resorbable, synthetic material, which is formed from a terpolymer based on lactide,...
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