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Class 525/411 - Mixed with carboxylic acid or derivative reactant or polymer therefrom


Subclass of Class 525 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein the solid polymer derived from only
No. of patents: 391
Last issue date: 04/24/2012


1                    
NumberTitleIssue Date
8163849Process of producing polylactic acid
It is an object of the present invention to produce a polylactic acid having a high molecular weight such as a weight average molecular weight (Mw) of more than 100,000 from which only a stereocomplex crystal is grown even by repeating melting and crystallization. T...
04/24/2012
8133955Aromatic polyester resin composition and process for production thereof
An aromatic polyester resin composition, comprising: a melt-kneaded product of 99-70 weight parts of an aromatic polyester resin and 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin, wherein ...
03/13/2012
8071690Lactic acid based compositions with enhanced properties
A crosslinked lactic acid polymer composition containing (i) a macromer comprising (i-a) a flexible segment produced by the condensation of two or more compounds selected from the group consisting of lactones, furans, epoxies, isocyanates, anhydrides, dianhydrides, ...
12/06/2011
7919566Lactic acid polymers
A blend of a multiply branched lactic acid polymer of one steric configuration with a linear lactic acid polymer of the opposite steric configuration has different and more useful properties than either component alone. ...
04/05/2011
7816461Block copolymers of polycarpolactone and poly (propylene funarate)
Poly(propylene fumarate) is copolymerized with poly(caprolactone) diol to produce a block copolymer of poly(propylene fumarate) and poly(caprolactone). The biocompatible and bioresorbable block copolymer of poly(propylene fumarate) and poly(caprolactone) is useful i...
10/19/2010
7619041Resin particles and producing method thereof, toner for developing electrostatic latent image and producing method thereof, electrostatic latent image developer as well as image forming method
A resin particle producing method that includes at least an emulsification step of emulsifying a composition containing at least a polymerizable monomer and a polymerization step to form droplets of the composition, and a polymerization step of polymerizing the poly...
11/17/2009
7589156Polyhydroxyalkanoic acid having ester, carboxyl or sulfonic acid group, and producing method therefor
The invention is to provide a novel polyhydroxyalkanoate having a reactive functional group within a molecule, a novel polyhydroxyalkanoate having a novel function by a chemical modification of the polyhydroxyalkanoate having the reactive functional group, and a pro...
09/15/2009
7517937Biodegradable resin composition and biodegradable resin molded article
The present invention relates a biodegradable resin composition comprising an L-lactic acid unit-containing resin (1) and a D-lactic acid unit-containing resin (2). Also disclosed is a biodegradable resin molded article obtained from the biodegradable resin composit...
04/14/2009
7511103Poly(ester amide) block copolymers
Provided herein is a copolymer that includes a soft block (A) and a hard block (B) comprising a tyrosine di-peptide. The copolymer can be any of AB, ABA or BAB type block copolymers. The soft block can include a PEA polymer. ...
03/31/2009
7419703Thermally curable, thixotropic blends containing carbamate and/or allophanate groups
The invention provides heat-curable thixotropic mixtures containing carbamate and/or allophanate groups, including at least one oligomer and/or polymer containing at least one of carbamate and allophanate groups, and at least one thixotropic agent that is a urea der...
09/02/2008
7368160Packaging film
A film of biodegradable polylactic acid polymers and copolymers is produced by coextrusion which displays improved winding and manufacturability and end use performance. The film is coextruded from polylactic acid (PLA) polymers and copolymers and biaxially oriented...
05/06/2008
7368511Polymer blends with improved rheology and improved unnotched impact strength
This invention relates to a blend of biodegradable polymers comprising: (A) about 15% to about 60% by weight of at least one flexible biodegradable polymer (A) having a glass transition less than about 0° C., (B) about 85% to about 40% by ...
05/06/2008
7364748Controlled morphologies in polymer drug for release of drugs from polymer films
The present invention includes a drug release system. The drug release system comprises a bulk polymer phase and a polymeric drug-enriched phase within the bulk polymer phase. At least one drug is incorporated into the drug-enriched phase. ...
04/29/2008
7354531Polymer electrolyte composition
A composition for use as a polymer electrolyte, wherein said composition includes one or more polar materials and one or more polyesters of formula III, wherein each unit A may be identical or different and is of the struct...
04/08/2008
7354656Floor covering made from an environmentally friendly polylactide-based composite formulation
Polymeric materials and products, including sheet flooring materials prepared from the polymeric materials, and processes for preparing the polymeric materials, are disclosed. The polymeric materials include a polylactic acid-based polymer in combination with plasti...
04/08/2008
7335699Copolymers containing aminoplast units and use thereof as a dispersing agent or stabilizers
A description is given of water-soluble aminoplast ether copolymers of the following structural type: wherein Z is a glycoluril central unit, B is a radical of an essentially water-insoluble polymer and R1 is a radical of a...
02/26/2008
7311122Lining material for rehabilitating an existing pipe and a manhole, and barrier liner and method for rehabilitating a pipe and a manhole
A pipe lining material for lining the main pipe of a sewer has a soft tubular resin absorption material impregnated with a liquid thermosetting resin, and also has a biodegradable film applied to the external peripheral surface of the pipe lining material. The pipe ...
12/25/2007
7311980Polyactive/polylactic acid coatings for an implantable device
A polymeric coating for a medical device that comprises poly(lactic acid) and a block copolymer including blocks of poly(ethylene glycol) and poly(butylene terephthalate) is provided. ...
12/25/2007
7304122Elastomeric functional biodegradable copolyester amides and copolyester urethanes
The present invention provides elastomeric copolyester amides, elastomeric copolyester urethanes, and methods for making the same. The polymers that are based on α-amino acids and possess suitable physical, chemical and biodegradation properties. The polymers are u...
12/04/2007
7288603Polybenzazole compound having sulfonic acid group and/or phosphonic acid group, resin composition containing the same, resin molding, solid polymer electrolyte membrane, solid polymer electrolyte membrane/electrode assembly and method of preparing assembly
An object of the present invention is to obtain a novel polymeric material capable of forming a solid polymer electrolyte excellent not only in processability, solvent resistance and durability/stability but also in ion conductivity by introducing sulfonic acid grou...
10/30/2007
7279534Poly(heteroaromatic) block copolymers with electrical conductivity
The present invention provides block copolymers containing at least one block of a poly(heteroaromatic) polymer and at least two blocks of a non-conjugated polymer. The chemically different blocks of the copolymer are covalently bonded to each other in an alternatin...
10/09/2007
7279174Stent coatings comprising hydrophilic additives
A coating for implantable medical devices and a method for fabricating thereof are disclosed. The coating includes a mixture of a hydrophobic polymer and a polymeric hydrophilic additive, wherein the hydrophobic polymer and the hydrophilic additive form a physically...
10/09/2007
7273910Process for the preparation of a functionalized polymer intermediate products, compositions and shaped parts
Process for the preparation of a functionalized polymer containing an additive, in which process there is formed a compound that contains, besides at least one blocked isocyanate group, a free amino, hydroxy or carboxy group; this compound is linked to an additive v...
09/25/2007
7268205Medical devices and applications of polyhydroxyalkanoate polymers
Devices formed of or including biocompatible polyhydroxyalkanoates are provided with controlled degradation rates, preferably less than one year under physiological conditions. Preferred devices include sutures, suture fasteners, meniscus repair devices, rivets, tac...
09/11/2007
7268182Polytrimethylene ether diol containing coating compositions
A coating composition comprising a film forming binder of a. at least one polymer that has pendant groups, such as, hydroxyl, carboxyl, glycidyl, amine, amide, silane and mixtures thereof that are reactive with a crosslinking compo...
09/11/2007
7244443Polymers of fluorinated monomers and hydrophilic monomers
A polymer of fluorinated monomers and hydrophilic monomers is provided. It is also provided a polymer blend that contains a polymer of fluorinated monomers and another biocompatible polymer. The polymer of fluorinated monomers or polymer blend described herein and o...
07/17/2007
7241832Biodegradable polymer blends for use in making films, sheets and other articles of manufacture
Biodegradable polymer blends suitable for laminate coatings, wraps and other packaging materials are manufactured from at least one “hard” biopolymer and at least one “soft” biopolymer. “Hard” biopolymers tend to be more brittle and rigid and typically h...
07/10/2007
7235287Biodegradable laminated sheet
The biodegradable sheet is a laminated sheet including at least two layers. Each of the layers forming the laminated sheet is a resin composition comprising 75 to 25% by mass of a polylactic acid resin, and 25 to 75% by mass of a polyester resin having a glass trans...
06/26/2007
7223571Targeted glycosaminoglycan polymers by polymer grafting and methods of making and using same
The present invention relates to methodology for polymer grafting by a polysaccharide synthase and, more particularly, polymer grafting using the hyaluronate or chondroitin or heparin/heparosan synthases from Pasteurella, in order to create a variety of glyco...
05/29/2007
7214414Biodegradable polymer blends for use in making films, sheets and other articles of manufacture
Biodegradable polymer blends suitable for laminate coatings, wraps and other packaging materials are manufactured from a blend of suitable biodegradable polymers, such as at least one “hard” biopolymer and at least one “soft” biopolymer. “Hard” biopolyme...
05/08/2007
7195011Convertible fluid feed system with comformable reservoir and methods
A feed system for an aerosolizer utilizes an ampoule containing a liquid and includes a housing having an ampoule region into which the ampoule is held, and a liquid receiving region that is adapted to receive liquid dispensed from the ampoule. An interface is used ...
03/27/2007
7195822Heat-shrinkable film of polylactic acid film
The heat shrinkable film of polylactic acid-based resin used for shrink packaging, shrink bundling, shrink label and the like, can prevent shrinking in the machinery direction after stretching and can show a good appearance after shrinking. The heat shrinkable film ...
03/27/2007
7179883Medical devices and applications of polyhydroxyalkanoate polymers
Devices formed of or including biocompatible polyhydroxyalkanoates are provided with controlled degradation rates, preferably less than one year under physiological conditions. Preferred devices include sutures, suture fasteners, meniscus repair devices, rivets, tac...
02/20/2007
7175917Biaxially oriented polylactic acid-based resin films
The present invention provides a biaxially oriented film of a polylactic acid resin that is suitable for films for bags and packaging films for various windows, particularly films for outlook window envelopes. The film is biodegradable and, as films for outlook wind...
02/13/2007
7172814Fibrous sheets coated or impregnated with biodegradable polymers or polymers blends
Fibrous sheets are coated or impregnated with a biodegradable composition to render the sheets more resistant to penetration by liquids. Biodegradable polymer blends suitable for use in coating or impregnating a fibrous sheet can be manufactured from at least one ...
02/06/2007
7151142Biodegradable aliphatic polyester grafted with poly(ethylene glycol) having reactive groups and preparation method thereof
The present invention is directed to a poly(ethylene glycol)-grafted aliphatic polyester represented by Formula 1: wherein X is an aliphatic ester, R is hydrogen or C1-5 alkyl,...
12/19/2006
7148315Monomer addition techniques to control manufacturing of bioabsorbable copolymers
Monomer addition methodology is provided to adjust monomer addition rates to a polymerization reactor. Advantages of the invention include control of bioabsorbable copolymer structure, improvement of monomer conversion, control of reaction temperature, and reduced r...
12/12/2006
7144976Coumarin 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 light by photochemically allowed [2+2] cycloaddition reactions among ...
12/05/2006
7141643Alkylene oxide-lactone copolymers
A block copolymer is disclosed, which comprises a first block comprising polymerized units of an alkylene oxide and a second block comprising polymerized units of an alkylene oxide and a lactone, said copolymer being obtainable by polymerizing an alkylene oxide in t...
11/28/2006
7138464Functionalized, absorbable, segmented copolyesters and related copolymers
Absorbable heterochain polymers carrying acid or basic groups, capable of ionic conjugation with basic or acidic bioactive agents, respectively, are produced by free-radical addition of unsaturated functional monomers onto absorbable liquid polymers and subsequent g...
11/21/2006
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