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| Number | Title | Issue Date |
| 8106150 | Polylactide manufacturing apparatus and method for manufacturing polylactide In a process of manufacturing polylactide, synthesis of high-quality polymers is achieved with a sufficient degree of vacuum secured. Provided is an apparatus for manufacturing polylactide which includes the steps of preparing lactide through oligomerization of lact... | 01/31/2012 |
| 7399821 | Alkylated poly(allylamine) polymers and methods of use The invention relates to a method for removing bile salts from a patient in need thereof and compositions useful in the method. The method comprises administering to the patient a therapeutically effective amount of a salt of an alkylated and crosslinked polymer. Th... | 07/15/2008 |
| 7175917 | Biaxially 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 |
| 7151142 | Biodegradable 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 |
| 7148315 | Monomer 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 |
| 7144976 | 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 light by photochemically allowed [2+2] cycloaddition reactions among ... | 12/05/2006 |
| 7141302 | Suture material for surgery, processes for its production and the use thereof A suture material for surgery comprises one or more filaments and is formed with a coating, which is characterized in that the coating at least partly comprises a bioresorbable polymer, which is essentially formed from a random terpolymer with a completely amorphous... | 11/28/2006 |
| 7141643 | Alkylene 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 |
| 7129319 | 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 originating from the central atom and a rigid, crystallizable compone... | 10/31/2006 |
| 7119163 | Process for continuously producing ε-caprolactone polymer A process for the continuous production of an ε-caprolactone polymer characterized by including heating an ε-caprolactone under reduced pressure or in an inert gas stream to volatilize the unreacted ε-caprolactone from the polymer and cooling the vapor phase part... | 10/10/2006 |
| 7105629 | 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 light by photochemically allowed [2+2] cycloaddition reactions among ... | 09/12/2006 |
| 7101960 | Process for removing bile salts from a patient and alkylated compositions therefor The invention relates to a method for reducing serum cholesterol in a patient in need thereof and alkylated and crosslinked poly(allylamine) polymers useful in the method. The alkylated and crosslinked poly(allylamine) polymers are crosslinked with epichlorohydrin a... | 09/05/2006 |
| 7094864 | Process of continuously producing polyester polymer The present invention uses a reactor that combines devices having a special portion structure to solve the difficulty of uniform blending due to the reactants becoming highly viscous, the difficulty of heat removal, and the increase in pressure loss, thus leading to... | 08/22/2006 |
| 7087247 | Polyesters, method for producing same, and depot medicaments produced from these polyesters The invention relates to novel absorbable polyesters, produced by ring-opening polymerisation of hydroxycarboxylic acids in the presence of a polyol containing an electrolyte, in an extruder. In particular, the invention relates to novel polylactide glycolide polyes... | 08/08/2006 |
| 7074883 | Acid end group poly(D,L-lactide-co-glycolide) copolymers with high glycolide content Copolymers of lactide and glycolide with high glycolide content. The average glycolate block length is less then about 3, which allows the copolymer to be soluble in slightly polar solvents such as methylene chloride. ... | 07/11/2006 |
| 7071288 | Terpolymers from lactide The present invention is generally directed to a process for producing lactide-based polymers and the polymers produced by this process. The polymers of the present invention are terpolymers formed by the copolymerization of a lactide monomer, a linking monomer and ... | 07/04/2006 |
| 7070858 | 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 originating from the central atom and a rigid, crystallizable compone... | 07/04/2006 |
| 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 originating from the central atom and a rigid, crystallizable compone... | 04/11/2006 |
| 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 weight therein being not more than about 5% by weight, characterized... | 03/28/2006 |
| 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 light by photochemically allowed [2+2] cycloaddition reactions among ... | 03/14/2006 |
| 6913826 | Biodegradable polyester polymer and method for preparing the same using compressed gas In polymerizing biodegradable polymer material, a compressed gas is used as a reaction solvent for a solution-polymerization, in order to prepare biodegradable polyester homopolymer and copolymer with a high molecular weight in a fine powder form with a particle siz... | 07/05/2005 |
| 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 articles, in particular films, preferably obtained by extrusion blow-moul... | 06/28/2005 |
| 6906147 | Catalytic systems This invention relates to single-component and multi-component catalytic systems using aryl titanates. Aryl titanate compounds are useful as catalysts and co-catalysts in single-component and multi-component catalytic systems (e.g., for the polymerization of macrocy... | 06/14/2005 |
| 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 of a monofunctional polymerization initiator and a di-functional poly... | 12/14/2004 |
| 6825314 | Process for the preparation of cyclic lactic acid oligomers 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 present invention, there is provided a method for producing a cyclic ... | 11/30/2004 |
| 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 a glass transition temperature of 60° C. or below, imparts superior... | 10/12/2004 |
| 6800672 | Biodegradable compositions comprising poly(cycloaliphatic phosphoester) compounds, articles, and methods for using the same Biodegradable, flowable or flexible polymer compositions are described comprising a polymer having the recurring monomeric units shown in formula I: wherein: each of R and R′ is independently straight or branche... | 10/05/2004 |
| 6794485 | 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 originating from the central atom and a rigid, crystallizable compone... | 09/21/2004 |
| 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 initiator and a di-functional polymerization initiator, to achieve rat... | 09/21/2004 |
| 6770725 | Bioactive surface modifiers for polymers and articles made therefrom This invention relates to macromolecule modifiers containing biologically active drugs/biomolecules, or precursors thereof, and fluoroligomers; compositions comprising the macromolecules containing the drugs and fluoroligomers in admixture with polymers, particularl... | 08/03/2004 |
| 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 than 50% (area % by GPC). This invention also provides methods for synth... | 07/27/2004 |
| 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 having protected carboxyl or a hydroxydicarboxylic acid derivative havi... | 06/29/2004 |
| 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 one other type of repeat unit selected from the group consisting of ... | 06/08/2004 |
| 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 acid-containing polymer, degrades hydrolytically during operative an... | 05/25/2004 |
| 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—(CH2)n—OCO—(CH2)m—CO] and/or Y=[O—(CH2)k—CO], where the half-sum of n+m is equal to or greater than 6 and k is a number equal to or greater ... | 04/27/2004 |
| 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 stability and is decomposable in the natural environment. It comprises a ... | 03/30/2004 |
| 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, trimethylene carbonate and ε-caprolactone with a maximum lactide content... | 03/16/2004 |
| 6703477 | Acid end group poly(D,L-lactide-co-glycolide) copolymers with high glycolide content Copolymers of lactide and glycolide with high glycolide content. The average glycolate block length is less then about 3, which allows the copolymer to be soluble in slightly polar solvents such as methylene chloride.... | 03/09/2004 |
| 6667385 | Method of producing aminium lactate salt as a feedstock for dilactic acid or dimer production Polylactic acid is produced from dimers of lactic acid in an energy saving manner by contacting a lactic acid source via an extraction membrane with an amine carrier solvent to extract lactic acid across the membrane. One or two membranes may be used. Aft... | 12/23/2003 |
| 6649732 | Aliphatic polyester film and gas barrier film A film of the present invention includes, as its main component, an aliphatic polyester whose primary repeating unit is represented by a general formula --O--CHR--CO-- (where R denotes H or an alkyl group having a carbon number of 1-3). A three-dimensiona... | 11/18/2003 |
