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9029481 Method for producing polymer, device for producing polymer, device for producing complex, and polymer product  
A method for producing a polymer, by continuously supplying and bringing at least a ring-opening polymerizable monomer and a compressive fluid into contact with each other, to thereby allow the...
9023976 Amide-imide compounds and their corresponding polymers  
The Michael reaction is employed, for example, to condense methyl acrylate with diethyl malonate to prepare the corresponding tetra-ester. Subsequent reaction with primary amines followed by...
9012596 Copolymers and methods of use thereof  
Copolymers, such as block copolymers, having at least one block that is a random copolymer of ε-caprolactone and α-carboxy-ε-caprolactone are described. Also described are methods of using such...
9006337 Method for making a polymer, a polymer article, a biodevice, and cyclic carbonate  
The present invention relates to a method for making a polymer wherein during ring opening polymerisation is incorporated into the polymer chain at least one cyclic (alkyl) carbonate monomer...
8987409 Caprolactam-based composition, process for manufacturing an impermeable element, and tank  
The present invention relates to a composition that can be used to manufacture an impermeable, sealing, tight envelope, to a process for manufacturing an impermeable envelope, and to a tank. The...
8981038 Dinitro monomer, diamine monomer, polyimide and modified polyimide  
A polyimide including a structure shown as Formula II is provided, wherein X is halogen, A1 is selected from one of Formula 1 to Formula 18, and n is from 2 to 500,
8981039 Caprolactam-based composition, process for manufacturing an impermeable element, and tank  
The present invention relates to a composition that can be used to manufacture an impermeable, sealing, tight envelope, to a process for manufacturing an impermeable envelope, and to a tank. The...
8962791 Polylactic acid stereocomplex compositions and methods for making and using same  
Thermoformed PLA stereocomplex parts are made using a PLA stereocomplex composition having a highest crystallization melting temperature from 200 to 215° C. The stereocomplex composition...
8952126 Purification of functionalized triblock copolymers via methanol trituration  
A method of making a pure block copolymer includes forming a crude block copolymer; heating a solution of the crude block copolymer and alcohol; and cooling the solution to promote precipitation...
8940509 Microorganisms and methods for the production of caprolactone  
The invention provides non-naturally occurring microbial organisms containing caprolactone pathways having at least one exogenous nucleic acid encoding a butadiene pathway enzyme expressed in a...
8940934 Production process of α-hydroxy acids  
An object of the present invention is to provide a production process of an α-hydroxy acid having a sufficient quality as a polymer raw material, which process does not produce a large amount of...
8933190 Process for preparing a polyester  
Disclosed is a process for preparing a polyester or copolymer containing ester functionalities. The process can comprise: providing an optionally substituted lactone having a ring size of from 6...
8927682 Functionalization of polyglycolides by “click” chemistry  
Poly(glycolide) polymers are disclosed. The polymers generally include a polymerized alkynyl-substituted glycolide having a polymer backbone with one or more alkynyl groups appended thereto. The...
8911760 Copolymers having polyisobutylene and biodegradable polymer segments  
The present invention pertains to copolymers having one or more polyisobutylene segments and one or more biodegradable polymer segments, to methods of making such copolymers, to medical articles...
8901275 Method for producing crystallized polyester  
A method for producing a crystallized polyester comprises the crystallization step of applying a shear and/or a pressure to a polyester selected from an aliphatic polyester and a polyalkylene...
8901253 Polymer network with triple shape effect and associated programming method  
The invention relates to a polymer network with triple-shape-memory effect and an associated programming method. The invention also relates to a method for producing layer systems made of...
8889823 Method to make poly(L-lactide) stent with tunable degradation rate  
Methods of making a biodegradable polymeric stent made from poly(L-lactide) and a low concentration of L-lactide monomer is disclosed. The concentration of L-lactide is adjusted to provide a...
8883957 Process for the preparation of polylactones and polylactams  
The present invention relates to a process for the preparation of a lactone or lactam homopolymer, comprising the stage consisting in reacting a lactone or lactam with a nonpolymeric initiator...
8877420 Particles and method for producing the same, toner and method for producing the same, developer, process cartridge, image forming method and image forming apparatus  
A method for producing particles, including: bringing a compressive fluid into contact with a pressure plastic material, so as to plasticize the pressure plastic material; applying a shear force...
8871242 Blood anticoagulant material, coating material and indwelling device comprising the same, and treatment using blood anticoagulant material  
A blood anticoagulant material is provided which has high expandability, reduced influence on living bodies, and can efficiently prevent blood coagulation. A multiblock copolymer having at least a...
8853330 Hybrid polymers  
Described herein are polymers comprising a polyester and at least one polyhedral oligomeric silsesquioxane, wherein the polyester is capable of forming a stereocomplex with a polymer comprising a...
8846810 Polymer particle and method for producing the same  
A method for producing polymer particles, including (A) polymerizing and granulating a ring-opening polymerizable monomer in a compressive fluid with a catalyst in the presence of a surfactant, or...
8841412 Controlling moisture in and plasticization of bioresorbable polymer for melt processing  
Methods and systems for controlling the moisture content of biodegradable and bioresorbable polymer resin during extrusion above a lower limit that allows for plasticization of the polymer resin...
8815975 Cyanoacrylate tissue adhesive formulations with multipurpose rheology modifiers  
Absorbable and non-absorbable cyanoacrylate tissue adhesive/sealant formulations include at least one multipurpose carboxylic, acid-bearing C-succinylated polymeric rheology modifier capable of...
8815390 Matte biaxially oriented polylactic acid film  
A biaxially oriented laminate film including a core layer including a blend of crystalline polylactic acid polymer and a minority amount of polyolefin with a compatibilizing resin which is...
8808854 Matte biaxially oriented polylactic acid film  
A biaxially oriented laminate film including a core layer including a blend of crystalline polylactic acid polymer and a minority amount of polyolefin with a compatibilizing resin which is...
8791228 Method for bulk polymerization of lactide  
Process for bulk polymerization of lactide at a temperature between 160° C. and 195° C. in the presence of a zinc-based catalyst.
8758801 Coatings for implantable devices comprising poly(hydroxy-alkanoates) and diacid linkages  
Coatings for an implantable medical device and a method of fabricating thereof are disclosed, the coatings including block-polymers comprising at least one poly(hydroxyacid) or...
8759260 Wellbore fluid additives and methods of producing the same  
Disclosed herein is a polymer useful in a method of forming a wellbore fluid additive. This polymer comprises a polyethylene backbone comprising pendant aminoalkylsulfonic acid amides which...
8753555 Medical devices containing oriented films of poly-4-hydroxybutyrate and copolymers  
Continuous processing methods for making absorbable polymeric films with one or more of the following properties: high toughness, low modulus, high tensile strength, and thickness less than 10 mm,...
8748526 Thermoplastic elastomer composition  
An object of the present invention is to provide: a thermoplastic elastomer composition, which is accompanied by less environmental burden, and which has flexibility, rubber elasticity,...
8716425 Method of reducing stress relaxation in polymer articles and articles formed thereby  
A method of improving the mechanical properties of polymers is described. The method involves heat treating the polymer at a temperature below the glass transition temperature in a wet or in a dry...
8709466 Cationic polymers for antimicrobial applications and delivery of bioactive materials  
A cationic star polymer is disclosed of the general formula (1): I′P′]w′ (1), wherein w′ is a positive number greater than or equal to 3, I′ is a dendritic polyester core covalently linked to w′...
8697832 Method for producing lactic acid polymers of high crystallinity and molecular weight  
The invention relates to a process for preparing lactic acid polymers of highly crystallinity and molecular weight, the process comprising melt polymerization of a lactide to form prepolymers...
8691894 Preparation of polyamide block copolymers  
This invention relates to the preparation of polyamide block copolymers by sequential monomer addition. More particularly, it relates to catalysts capable of copolymerizing not only cyclic amides,...
8691899 Antimicrobial polymer compositions and the use thereof  
An antimicrobial composition and a medical device having that antimicrobial composition that includes a complex of an anionic polyester with a monomeric amidoamine having at least one amide group...
8691912 Aliphatic polyester manufacturing method  
A process for producing an aliphatic polyester, comprising: subjecting at least two serial stages of bulk-phase ring-opening polymerization and a solid-phase polymerization step, wherein a cyclic...
8680228 Controlled hydrolysis of poly-4-hydroxybutyrate and copolymers  
Methods for making P4HB polymers and copolymers thereof that are useful for preparing controlled release systems, medical devices and as intermediates in chemical synthesis, have been developed....
8663992 Process for treating polymers containing residual catalyst  
Process for thermally stabilizing a polymer containing residues of a Sn(II), Sb(III), Pb(II), Bi(III), Fe(II), Ti(II), Ti(III), Mn(II), Mn(III), or Ge(II)-containing catalyst by treating the...
8658756 Caprolactam-based composition, process for manufacturing an impermeable element, and tank  
The present invention relates to a composition that can be used to manufacture an impermeable, sealing, tight envelope, to a process for manufacturing an impermeable envelope, and to a tank. The...
8658261 Composition, film, polarizing plate, and liquid crystal display device  
Disclosed is a composition comprising a polymer comprising a repeating unit represented by formula (I). Each of A1 and A2 represents a group selected from the group consisting of —O—, —NRa— (Ra...
8658758 Process for producing aliphatic polyester reduced in residual cyclic ester content  
In the production of an aliphatic polyester by ring-opening polymerization of a cyclic ester, at least a latter period of polymerization is proceeded with by way of solid-phase polymerization, and...
8653226 Polyesteracetals  
A polyesteracetal contains —[C(O)(CR3R4)x(C(O))yOCR1R2O]— repeating unit where x is 0 to 5, y is 0 or 1, and R1, R2, R3 and R4 are independently H, C1 to C24 alkyl, C2 to C24 alkenyl, C6 to C14...
8653155 Polymers having lipophilic hydrocarbon and biodegradable polymeric segments  
The present invention pertains, among other things, to polymers having one or more lipophilic hydrocarbon segments and one or more biodegradable polymeric segments, to methods of making such...
RE44769 Dispersants  
A dispersant of general Formula I T—(A)n(B)p—Z (1) wherein T is hydrogen or a polymerisation terminating group;Z is an acidic or basic group or a moiety containing either an acidic or basic...
8642717 Aliphatic polyester resin and a process for producing it  
The present invention is an aliphatic polyester resin in which a polyhydroxy acid skeleton is a main component, manufactured using a polymerization catalyst, characterized in that a specific...
8609751 Polymer microfiller composites  
The instant invention generally provides polymer microfiller composite comprising a molecularly self-assembling material and a microfiller, and a process of making and an article comprising the...
8592539 Preparation of cobaltocenium-containing monomers and their polymers  
Methods of forming a cobaltocenium-containing polymer are provided through polymerizing a plurality of cobaltocenium-containing monomers via controlled radical polymerization or controlled...
8586075 Coatings for implantable devices comprising poly(hydroxy-alkanoates) and diacid linkages  
Coatings for an implantable medical device and a method of fabricating thereof are disclosed, the coatings include block-polymers comprising at least one poly(hydroxyacid) or...
8580914 Process for producing aliphatic polyester  
A process for producing an aliphatic polyester through ring-opening polymerization of a cyclic ester, wherein a partial polymer in a molten state is continuously introduced into a twin-screw...