Mixed With Carboxylic Acid Or Derivative Reactant Or Polymer Therefrom Patents (Class 525/411)
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Patent number: 7919566Abstract: 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.Type: GrantFiled: January 22, 2008Date of Patent: April 5, 2011Assignee: Tate & Lyle Public Limited CompanyInventors: Nils Dan Anders Södergard, Erik Mikael Stolt
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Patent number: 7915350Abstract: Compositions are described comprising a) polyoxymethylene, b) thermoplastic elastomer having active hydrogen atoms, c) polyoxymethylene which differs from component a) and contains active hydrogen atoms, d) reagent for covalent coupling of components b) and c), and e) if appropriate, another impact modifier, which differs from component b). The compositions feature improved toughness and can be used for production of moldings.Type: GrantFiled: April 12, 2006Date of Patent: March 29, 2011Assignee: Ticona GmbHInventors: Holger Schmalz, Christine Köstler, Klaus Kurz
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Patent number: 7915343Abstract: The invention relates to a new modified polyacrylate comprising fluorinated oxetane (FOX) polymer units functionalized with an unsaturated dicarboxylic acid and siloxane units and to its use as slip- and leveling agent and anti-cratering agent for a variety of applications. Thus, the invention relates to a slip- and leveling agent characterized in that it comprises a copolymer which is obtained by copolymerizing A at least one unit of a fluorinated oxetane polymer functionalized with an unsaturated dicarboxylic acid; B at least one terminal reactive polysiloxane unit; C at least one alkyl(meth)acrylate unit or cycloalkyl(meth)acrylate unit and/or (meth)acrylic acid and/or other units originating from vinylic compounds that can form radicals.Type: GrantFiled: May 8, 2007Date of Patent: March 29, 2011Assignee: BASF SEInventors: Marcelles Van Der Sluis, Wendy Gezina Hof, Lothar Alexander Engelbrecht, Steffen Onclin
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Patent number: 7902297Abstract: The invention relates to a slip- and leveling agent characterized in that it comprises a copolymer which is obtained by copolymerizing A. at least one unit of a mono- or di perfluoroester of an unsaturated dicarboxylic-acid; B. at least one terminal reactive polysiloxane unit; C. at least one alkyl(meth)acrylate unit or cycloalkyl(meth)acrylate unit and/or (meth)acrylic acid and/or other units originating from vinylic compounds that can form radicals.Type: GrantFiled: May 16, 2006Date of Patent: March 8, 2011Assignee: BASF SEInventors: Lothar Alexander Engelbrecht, Frank Oliver Heinrich Pirrung, Petrus Johannes Harbers, Arend Noordam, Martin Philipoom
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Patent number: 7879953Abstract: This disclosure provides a medical device and a method of forming the medical device. The medical device comprises a coating comprising a type-one polymer and a type-two polymer. The type-one polymer comprises at least two different blocks, at least one L1 block with the formula ; and at least one L2 block with the formula Medical devices comprising these polymers, mixtures of these polymers with therapeutic agents, and methods of making these polymers and mixtures are within the scope of this disclosure.Type: GrantFiled: July 28, 2010Date of Patent: February 1, 2011Assignee: Advanced Cardiovascular Systems, Inc.Inventor: Stephen D. Pacetti
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Publication number: 20110021717Abstract: 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 degradation behavior that is suitable for different treatment applications including coronary, peripheral, and nasal. Methods include making a poly(L-lactide) material for a stent with uniformly distributed L-lactide monomer through control of polymerization conditions during PLLA synthesis, control of post-processing conditions, or both.Type: ApplicationFiled: March 31, 2010Publication date: January 27, 2011Inventors: Yunbing Wang, Xiao Ma
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Patent number: 7872056Abstract: The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers (i.e. PS and HIPS) and bio-based or biodegradable polymers (i.e. PLA, PGA, PHA, PBS, PCL) compatibilized with styrene-based copolymers (i.e. styrene-ethylene-butylene-styrene (SEBS) block copolymers, maleated SEBS, styrene-maleic anhydride (SMA) copolymer, styrene-methyl methacrylate (SMMA) copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. These novel compositions can be extruded and thermoformed to produce very low density food service and consumer foam articles such as plates, hinged lid containers, trays, bowls, and egg cartons with good mechanical properties.Type: GrantFiled: February 2, 2009Date of Patent: January 18, 2011Assignee: Pactiv CorporationInventors: Yunwa Wilson Cheung, David V. Dobreski, Richard Turner, Mark Wheeler, Y. Paul Handa
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Patent number: 7868101Abstract: The invention is directed to a method for preparing an environmentally degradable polymeric compound as well as to such a compound per se and to its use. A compound of the present invention includes a polycondensated lactic acid containing polymer, having a molecular weight (Mw) of from 500 to 50,000 g/mol, to which a flexibilizing aliphatic polyester having a molecular weight of from 500 to 50,000 g/mol is coupled. The amount of lactic acid including groups in the polymeric compound ranges from 50 to 99% and the amount of flexibilizing polyester groups ranges from 1 to 50%.Type: GrantFiled: May 24, 2007Date of Patent: January 11, 2011Assignee: Tate & Lyle Public Limited CompanyInventors: David Neal Lewis, Gerrit Schutte, Henk Westerhof, Jane Janssen, William E. Kelly
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Publication number: 20110003719Abstract: Process for the preparation of a polymer-containing composition comprising the steps of: a) preparing a mixture of at least one cyclic monomer selected from glycolide and lactide and a layered double hydroxide comprising as charge-balancing anions 10 to 100% of an organic anion and 0 to 90% of hydroxide, based on the total amount of charge-balancing anions, and b) polymerising said monomer, optionally in the presence of a polymerisation initiator or catalyst.Type: ApplicationFiled: March 9, 2009Publication date: January 6, 2011Inventors: Robin Winters, Elwin Schomaker, Siebe Cornelis De Vos
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Patent number: 7863382Abstract: A resin composition in which a polylactic acid resin (A) 95-5 wt %, an aromatic polycarbonate resin (B) 5-95 wt %, and, with respect to 100 wt parts of the total of the (A) and the (B), at least one compatibilizer selected from a polymer compound containing an acrylic resin or styrene resin unit as a graft (C), a polymer compound to which a glycidyl compound or an acid anhydride is grafted or copolymerized (D) and an oxazoline compound, an oxazine compound and a carbodiimide compound (E) are compounded.Type: GrantFiled: September 20, 2005Date of Patent: January 4, 2011Assignee: Toray Industriés, Inc.Inventors: Hiromitsu Ishii, Takashi Nagao, Hiroyuki Ohme
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Publication number: 20100324605Abstract: High strength bioresorbable polymers suitable for orthopaedic applications comprising sulphonyl diphenol, hydroxybenzoic acid and dicarboxylic acid.Type: ApplicationFiled: March 23, 2007Publication date: December 23, 2010Applicant: SMITH & NEPHEW, PLCInventors: Anthony Dagger, De Oca Horacio Montes
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Patent number: 7851526Abstract: Polymers initiated with furanones and compositions containing such polymers are suitable for use in making textiles, medical devices, delivery agents, packaging materials, coatings for such items, and the like.Type: GrantFiled: May 14, 2007Date of Patent: December 14, 2010Assignee: Tyco Healthcare Group LPInventors: Joshua B. Stopek, Joseph Hotter, Steve Tsai
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Patent number: 7847023Abstract: A thermoplastic composition comprises a polysiloxane/polyimide block copolymer and a polyester/polyether block copolymer. The polysiloxane/polyimide block copolymer has 5 to 50 weight percent (wt %) polysiloxane, based on the total weight of the polysiloxane/polyimide block copolymer. The polyester/polyether block copolymer has 5 to 30 wt % polyether based on the total weight of the polyester/polyether block copolymer. In some embodiments the polysiloxane/polyimide block copolymer is present in an amount of 75 to 99 wt % and the polyester/polyether block copolymer is present in an amount of 1 to 25 wt %, with the weight percent of the block copolymers based on the combined weight of the two block copolymers.Type: GrantFiled: March 12, 2007Date of Patent: December 7, 2010Assignee: Sabic Innovative Plastics IP B.V.Inventors: Robert Russell Gallucci, Gurulingamurthy M. Haralur, Sanjay Mishra, Mark Sanner
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Publication number: 20100304287Abstract: The present disclosure provides processes for the production of block copolymer polyester resins suitable for use in manufacturing toners. In embodiments, the copolymers include both a crystalline block and an amorphous block, which can self-assemble to form nanoparticles suitable for use in forming toners.Type: ApplicationFiled: May 26, 2009Publication date: December 2, 2010Applicant: Xerox CorporationInventors: Jordan H. Wosnick, Karen Ann Moffat
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Publication number: 20100285144Abstract: Described herein are polymer-agent conjugates and particles, which can be used, for example, in the treatment of cancer or neurological deficits. Also described herein are mixtures, compositions and dosage forms containing the particles, methods of using the particles (e.g., to treat a disorder), kits including the polymer-agent conjugates and particles, methods of making the polymer-agent conjugates and particles, methods of storing the particles and methods of analyzing the particles.Type: ApplicationFiled: March 29, 2010Publication date: November 11, 2010Inventors: Scott Eliasof, Thomas C. Crawford, Geeti Gangal, Lawrence Alan Reiter, Pei-Sze Ng
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Patent number: 7816461Abstract: 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 in the fabrication of injectable and in-situ hardening scaffolds for tissue and/or skeletal reconstruction. The block copolymer can be crosslinked by redox or photo-initiation, with or without an additional crosslinker. Thus, the copolymer is both self-crosslinkable (without the use of any crosslinkers) and photocrosslinkable (in the presence of photons such as UV light).Type: GrantFiled: November 18, 2005Date of Patent: October 19, 2010Inventors: Shanfeng Wang, Michael J. Yaszemski, Lichun Lu, Bradford L. Currier
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Patent number: 7807757Abstract: This invention relates to a process for stabilising and at the same time phase compatibilising plastics or plastic compositions by incorporating polymeric compounds obtainable by reacting a compound selected from the group consisting of the sterically hindered phenols, sterically hindered amines, lactones, sulfides, phosphites, benzotriazoles, benzophenones and 2-(2-hydroxyphenyl)-1,3,5-triazines, which compounds contain at least one reactive group, with a compatibilisator.Type: GrantFiled: October 17, 2007Date of Patent: October 5, 2010Assignee: Ciba Specialty Chemicals Corp.Inventors: Rudolf Pfaendner, Heinz Herbst, Kurt Hoffmann, Samuel Evans, Alfred Steinmann
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Publication number: 20100249276Abstract: The invention provides epoxy and oxetane compositions including the novel acyloxy and N-acyl curing agents described herein. Use of invention curing agents result in cured adhesive compositions with remarkably increased adhesion and reduced hydrophilicity when compared to resins cured with other types of curing agents. Furthermore, the curatives of this invention do not interfere with free-radical cure and are thus suited for use in hybrid cure thermoset compositions.Type: ApplicationFiled: June 15, 2010Publication date: September 30, 2010Applicant: DESIGNER MOLECULES, INC.Inventor: Stephen M. Dershem
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Patent number: 7795357Abstract: Multiblock copolymers are described and contain the structural unit of formula I -A-O—R1—O—CO—(R2—CO—)m—X-D-X—(CO—R2)m—CO—X—??(I), where A is a radical derived from a homo- or copolyoxymethylene, R1 is an alkylene radical-having at least two carbon atoms or a cycloalkylene radical, R2 is a direct carbon-carbon bond, or an alkylene, cycloalkylene, arylene, or aralkylene radical, X is selected from —O—, —S—, or —NH—, D is a divalent radical B which is a radical of a hydroxy-terminated, mercaptan-terminated, or amino-terminated polymer which derives from polyalkylene glycols, polyvinyl ethers, polyvinyl ether-alkene copolymers, polyvinyl esters, polyvinyl ester-alkene copolymers, polyvinyl alcohols, polyvinyl alcohol-alkene copolymers, polyvinylaromatics, polyacrylates, polymethacrylates, polyacetals, polycarbonates, polyesters, polyamides, polyimines, polyetherester elastomers, polyetheramide elastomers, polyalkadienes, polyurethanes, polyureas, polysiloxanes, or a triblock copolymer radical -PAO-B-PAO-, whType: GrantFiled: September 3, 2004Date of Patent: September 14, 2010Assignee: Ticona GmbHInventors: Dirk Zierer, Klaus Kurz, Jens Schiebisch, Karl-Friedrich Mück, Holger Schmalz
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Publication number: 20100221471Abstract: Conjugate fibers are prepared in which at least one segment is a mixture of a high-D PLA resin and a high-L PLA resin. These segments have crystallites having a crystalline melting temperature of at least 200° C. At least one other segment is a high-D PLA resin or a high-L PLA resin. The conjugate fibers may be, for example, bicomponent, multi-component, islands-in-the-sea or sheath-and-core types. Specialty fibers of various types can be made through further downstream processing of these conjugate fibers.Type: ApplicationFiled: September 26, 2008Publication date: September 2, 2010Inventors: Robert A. Green, Chad Henry Kamann, Jeffrey John Kolstad, Christopher M. Ryan
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Patent number: 7781525Abstract: A curable composition, which comprises: (A) an organic polymer having a reactive silicon-containing group, (B) a carboxylic acid and/or a metal salt of a carboxylic acid, (C) an amine compound having no reactive silicon group, (D) a silane compound substituted with an amino group and (E) a silane compound substituted with an epoxy group, wherein the ratio of the molar number (d) of all amino groups of the silane compound substituted with an amino group (D) contained in the composition to the molar number (e) of all epoxy groups of a silane compound substituted with an amino group (E) contained in the composition (i.e., the ratio of (d)/(e))) is 1 or more, and further the total amount of the component (D) and the component (E) with respect to 100 g of the component (A) is 30 mmol or more.Type: GrantFiled: December 20, 2005Date of Patent: August 24, 2010Assignee: Kaneka CorporationInventors: Ayako Yano, Toshihiko Okamoto
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Publication number: 20100210792Abstract: Formulations of drugs and crystalline side chain polymers to provide controlled and/or sustained release drug formulations.Type: ApplicationFiled: December 4, 2007Publication date: August 19, 2010Inventors: David Taft, Steven Bitler, Qiang Zheng, Adam Bell, Stelios Tzannis
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Patent number: 7736393Abstract: Provided are an artificial dura mater having a laminated constitution of at least two layers of in vivo degradable polymers, at least one layer of them being a substrate layer, the substrate layer being formed of a lactic acid/glycolic acid/?-caprolactone copolymer, the copolymer having a component molar ratio of 60-85:3-15:10-30 mol % and the copolymer having an average chain length that satisfies the following expressions (1) to (3) and a process for the production thereof, and when this artificial dura mater is used, no liquid leakage is caused since the bloating of suture holes is small, and the period of time for which it retains its strength is suitably a little longer than the period of time required for the regeneration of an autodura mater, 2<L(LA)<[LA%/(LA%+GA%+CL%)]×X×0.058??(1) 1<L(GA)<[GA%/(LA%+GA%+CL%)]×X×0.58??(2) 1<L(CL)<[CL%/(LA%+GA%+CL%)]×X×0.Type: GrantFiled: April 18, 2005Date of Patent: June 15, 2010Assignee: Kawasumi Laboratories, Inc.Inventors: Noriaki Shirahama, Tomokazu Mukai, Takao Okada, Yukari Imamura, Yoshimichi Fujiyama
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Patent number: 7736779Abstract: The present invention relates to a proton-conducting polymer membrane which comprises polyazole blends and is obtainable by a process comprising the steps A) preparation of a mixture comprising polyphosphoric acid, at least one polyazole (polymer A) and/or one or more compounds which are suitable for forming polyazoles under the action of heat according to step B), B) heating of the mixture obtainable according to step A) under inert gas to temperatures of up to 400° C., C) application of a layer using the mixture from step A) and/or B) to a support, D) treatment of the membrane formed in step C) until it is self-supporting, wherein at least one further polymer (polymer B) which is not a polyazole is added to the composition obtainable according to step A) and/or step B) and the weight ratio of polyazole to polymer B is in the range from 0.1 to 50.Type: GrantFiled: October 2, 2003Date of Patent: June 15, 2010Assignee: BASF Fuel CellInventors: Oemer Uensal, Joachim Kiefer, Gordon Calundann, Michael J. Sansone, Brian Benicewicz, Eui W. Choe
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Publication number: 20100137526Abstract: Provided is a polymer prepared by using a vegetable oil-derived component and favorably used as a polylactic acid resin-softening agent that is effective in softening the polylactic acid resin while preserving the transparency of the polylactic acid resin and simultaneously resistant to bleeding out (extraction) of itself from the polylactic acid resin. Also provided are a resin mixture of the resin composition and a polylactic acid resin as well as a film or sheet prepared by using the resin mixture. The polymer (C) according to the present invention has an epoxidized vegetable oil segment (A) and a polylactic acid segment (B). The resin mixture according to the present invention is a mixture of the polymer (C) and the polylactic acid resin (D) at a (C)/(D) ratio of 10/90 to 50/50 (weight ratio).Type: ApplicationFiled: March 28, 2008Publication date: June 3, 2010Applicant: TORAY INDUSTRIES, INC.Inventors: Hirokado Nakamura, Hiroshi Shinnumadate, Masahiro Kimura
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Publication number: 20100130699Abstract: A polylactic acid composition (A) comprising a polylactic acid component (B) comprising at least 90 mol % of an L-lactic acid unit and less than 10% of copolymerizing component units other than L-lactic acid, and a polylactic acid component (C) comprising at least 90 mol % of a D-lactic acid unit and less than 10 mol % of copolymerizing component units other than D-lactic acid, which is a mixed composition with a (B)/(C) weight ratio of between 10/90 and 90/10.Type: ApplicationFiled: March 27, 2008Publication date: May 27, 2010Inventors: Midori Ikegame, Kiyotsuna Toyohara, Hideshi Kurihara
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Publication number: 20100105812Abstract: The invention relates to a copolyamide containing at least two patterns (monomers) and of the following general formula A/(Cz diamine)·(Cw diacid) in which: z is the number of carbon atoms of the diamine and w is the number of carbon atoms of the diacid; and A is selected from a pattern obtained from an amino acid and a pattern of the general formula (Cx diamine)·(Cy diacid)y, wherein x is the number of carbon atoms of the diamine and y is the number of carbon atoms of the diacid, the amino acid, each diamine and each diacid being obtained from a renewable raw material according to ASTM D6866 standard. The invention also relates to a composition containing the copolyamide and to the use of this copolyamide and of such a composition, essentially for producing thermofusable glues, in any form thereof.Type: ApplicationFiled: February 15, 2008Publication date: April 29, 2010Applicant: ARKEMA FRANCEInventors: Philippe Bussi, Heike Faulhammer, Guillaume Le, Quentin Pineau
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Publication number: 20100093946Abstract: The bioabsorbable polymers and compositions of the present invention may be formed into medical devices such as stents that can be crimped onto a catheter system for delivery into a blood vessel. The properties of the bioabsorbable polymers allow for both crimping and expansion of the stent. The crystal properties of the bioabsorbable polymers may change during crimping and/or expansion allowing for improved mechanical properties such as tensile strength and slower degradation kinetics. Typically, bioabsorbable polymers comprise aliphatic polyesters based on lactide backbone such as poly L-lactide, poly D-lactide, poly D,L-lactide, mesolactide, glycolides, lactones, as homopolymers or copolymers, as well as formed in copolymer moieties with co-monomers such as, trimethylene carbonate (TMC) or ?-caprolactone (ECL).Type: ApplicationFiled: October 13, 2009Publication date: April 15, 2010Applicant: ORBUSNEICH MEDICAL, INC.Inventors: G. Lawrence Thatcher, Robert J. Cottone
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Patent number: 7671169Abstract: A polycarbonate-polyester block copolymer includes a polycarbonate block and a polyester block, each having specific structures. The block copolymer can be prepared, at least in part, from renewable feedstocks. In some forms, the block copolymer includes biodegradable segments that facilitate structural breakdown of objects molded from the block copolymer. Methods of preparing the block copolymer are described as are compositions that include it and articles prepared from it.Type: GrantFiled: May 31, 2007Date of Patent: March 2, 2010Assignee: SABIC Innovative Plastics IP B.V.Inventors: Brian Mullen, Tara Mullen
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Patent number: 7666501Abstract: This invention relates to poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) biconstituent filaments, methods for making the same and end uses thereof.Type: GrantFiled: November 29, 2006Date of Patent: February 23, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Joseph V. Kurian, Richard E. Godwin, Jing C. Chang
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Patent number: 7642323Abstract: This invention provides a method for preparing, in high purity and high yield, heterobifunctional derivatives of poly(ethylene glycol) or related polymers. A chromatographic purification step is not necessary in the method. In accordance with the method of the invention, an intermediate polymer having a formula of W-Poly-OH is provided bearing a removable group W at one terminus. The intermediate polymer W-Poly-OH is first altered by modifying the OH group to a first functional group X, followed by the removal of W to generate a second hydroxyl group. The latter hydroxyl group may then be further converted to a second functional group Y, thus providing the desired heterobifunctional derivative.Type: GrantFiled: December 17, 2004Date of Patent: January 5, 2010Assignee: Nektar TherapeuticsInventors: Michael D. Bentley, J. Milton Harris, Antoni Kozlowski
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Publication number: 20090304767Abstract: A block or graft copolymer includes a first block, and a second block different from the first block, wherein the first block is a poly(lactide-glycolide) copolymer. The polymers may be formulated in compositions with drug components for use in coating medical devices such as stents. Different blocks of the block or graft copolymer degrade in the body at different rates. The drug release profile from the coating is a combination the individual release rates of the different blocks and so can be controlled by controlling the selection and relative amounts of the respective blocks.Type: ApplicationFiled: June 5, 2008Publication date: December 10, 2009Applicant: Boston Scientific Scimed, Inc.Inventors: Courtney Sikes, Mark Boden
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Patent number: 7619041Abstract: 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 polymerizable monomer in the droplets to synthesize resin particles, wherein the composition contains a polyester resin, lactone, and a lactone catalyst for polymerizing the lactone.Type: GrantFiled: April 23, 2008Date of Patent: November 17, 2009Assignee: Fuji Xerox Co., Ltd.Inventors: Yasuo Yamamoto, Satoshi Hiraoka, Hideo Maehata, Yasuo Matsumura
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Publication number: 20090281249Abstract: A biodegradable and biocompatible nontoxic polymeric composition is provided which includes a base material such as a crystallizable polymer, copolymer, or terpolymer, and a copolymer or terpolymer additive. Medical devices manufactured from the composition are also provided.Type: ApplicationFiled: July 23, 2009Publication date: November 12, 2009Applicant: ORBUSNEICH MEDICAL, INC.Inventors: G. Lawrence Thatcher, Robert J. Cottone
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Publication number: 20090275706Abstract: 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, alcohols, diols, triols, carboxylic acids, dicarboxylic acids, tricarboxylic acids, esters, diesters, triesters, ethers, diethers, and triethers; and (ii) a lactic acid polymer produced by the condensation of a lactic acid monomer or dimer selected from the group consisting of D-lactic acid, L-lactic acid, D,L-lactic acid, L,L-lactide, D,D-lactide, and D,L-lactide; wherein the macromer and the lactic acid polymer contain carbon-carbon single-bond crosslinks.Type: ApplicationFiled: January 16, 2009Publication date: November 5, 2009Inventors: Anders Södergard, Mikael Stolt, Geoffrey A.R. Nobes
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Patent number: 7589156Abstract: 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 producing method therefor. A polyhydroxyalkanoate containing a unit having a carboxyl group in a side chain is utilized for deriving a polyhydroxyalkanoate containing a unit having an amide group and a sulfonic acid group in the molecule.Type: GrantFiled: June 9, 2005Date of Patent: September 15, 2009Assignee: Canon Kabushiki KaishaInventors: Takashi Kenmoku, Chieko Mihara, Tatsuki Fukui, Ako Kusakari, Tetsuya Yano
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Patent number: 7579413Abstract: Compositions of biodegradable polymers and hyperbranched dendritic polymer (HBP) are described. The compositions can also include anhydride modified HBP. The resulting compositions have superior elongation at break and can be as cast or blown films for packaging, for example.Type: GrantFiled: April 28, 2006Date of Patent: August 25, 2009Assignee: Board of Trustees of Michigan State UniversityInventors: Amar K. Mohanty, Rahul Bhardwaj
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Publication number: 20090198020Abstract: A polyester-series resin composition comprises (A) a polyester block copolymer, (B) a polyepoxy compound and (C) a polycarbodiimide compound. The copolymer (A) is obtainable by a reaction of (a1) a crystalline aromatic polyester and (a2) a lactone, and if necessary (a3) at least one compound selected from the group consisting of a polycarboxylic acid or an ester-formable derivative thereof and a polyol or an ester-formable derivative thereof in the presence of an acidic phosphate ester and a tin compound. Such a resin composition is particularly excellent in recycling efficiency (or thermal cycling resistance) and is useful for blow molding.Type: ApplicationFiled: February 21, 2007Publication date: August 6, 2009Inventor: Masanori Sakane
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Publication number: 20090192253Abstract: This invention relates generally to compositions of macrocyclic polyester oligomer (MPO), polycaprolactone, and a thermoplastic elastomer (TPE). More particularly, in certain embodiments, the invention relates to recyclable tooling compositions made from MPO, polycaprolactone, and a thermoplastic copolyester elastomer.Type: ApplicationFiled: October 23, 2008Publication date: July 30, 2009Inventors: Paul Willey, Nathan Doyle, Josephine Faler, Johnny Lohmiller, Richard Schlansker, Jing Wang
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Publication number: 20090186990Abstract: Disclosed is a polylactic acid based heat-resistant sheet suitable for molding. The polylactic acid based heat-resistant sheet containing 50 to 95% by mass of a polylactic acid and 5 to 50% by mass of a polylactic acid-based copolymer which contains 30 to 70% by mole of a lactic acid component. The polylactic acid based heat-resistant sheet has a crystallization peak temperature of 60 to 120° C., a heat quantity of crystallization of 10 to 25 J/g, a melting point of 160° C. or higher and a heat quantity of crystal fusion of 15 to 40 J/g, as measured with a differential scanning calorimeter at a temperature increase rate of 20° C./min.Type: ApplicationFiled: May 31, 2007Publication date: July 23, 2009Inventors: Yukiko Inui, Masanori Hashimoto, Masahiro Yoshida
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Publication number: 20090162630Abstract: The present invention relates to a biodegradable heat-shrinkable film for shrinkable label of vessel having printing property, sealable, transparency and superior mechanical property, capable of decomposing in a nature environments, and the present invention provides a biodegradable heat-shrinkable film comprising a biodegradable polylactic acid series polymer and an aliphatic polyester in the weight ratio range of 70:30-95:5.Type: ApplicationFiled: June 5, 2006Publication date: June 25, 2009Inventor: Young-Su Shin
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Publication number: 20090130665Abstract: Block copolymers labelled with molecular recognition units and comprising a hydrophobic block and a luminescent block are presented. A method of detecting biomolecules using such block copolymers is also presented. More specifically, the block copolymers of the present invention have the following Formula (I): wherein “A” is a hydrophobic block; “B” is a luminescent block; “C” is a hydrophilic block; “D” is a molecular recognition unit; “n” and “m” are integers ranging from 1 to 75; “x” is either 0 or an integer ranging from 1 to 75; and “Y” is either 0 or 1.Type: ApplicationFiled: May 26, 2006Publication date: May 21, 2009Applicant: McGill UniversityInventors: Hanadi Sleiman, Bingzhi Chen
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Publication number: 20090098180Abstract: The present invention relates to compounds of formula I and II, which are functionalized amino acids, and polymers formed from the same. Polymers formed from the functionalized amino acids are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.Type: ApplicationFiled: October 10, 2006Publication date: April 16, 2009Applicant: BEZWADA BIOMEDICAL, LLCInventor: Rao S. Bezwada
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Patent number: 7517937Abstract: 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 composition.Type: GrantFiled: February 27, 2004Date of Patent: April 14, 2009Assignee: Nishikawa Rubber Co., Ltd.Inventors: Toru Yano, Nobuyuki Sakuda
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Patent number: 7511103Abstract: 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.Type: GrantFiled: August 5, 2008Date of Patent: March 31, 2009Assignee: Advanced Cardiovascular Systems, Inc.Inventor: Syed Faiyaz Ahmed Hossainy
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Publication number: 20090069504Abstract: Polymers initiated with furanones and compositions containing such polymers are suitable for use in making textiles, medical devices, delivery agents, packaging materials, coatings for such items, and the like.Type: ApplicationFiled: May 14, 2007Publication date: March 12, 2009Inventors: Joshua B. Stopek, Joseph Hotter, Steve Tsai
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Publication number: 20090025874Abstract: The present invention relates to novel polymer-bound adducts useful as cure components for anaerobic curable compositions. The compositions are particularly useful as adhesives and sealants.Type: ApplicationFiled: July 23, 2007Publication date: January 29, 2009Applicant: HENKEL CORPORATIONInventors: Andrew D. Messana, Anthony F. Jacobine
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Publication number: 20090005472Abstract: Biodegradable aliphatic/aromatic copolyester comprising: A) an acid component comprising repeating units of: 1) 53 to 54 mol % of an aromatic carboxylic acid; 2) 47 to 36 mol % of an aliphatic acid at least 50% of which is azelaic acid ; B) a diol component selected from the group consisting of C3, C4 and C6 diols; said AAPE being disintegrated according to the Standard ISO 20200 in 90 days.Type: ApplicationFiled: March 17, 2006Publication date: January 1, 2009Applicant: NOVAMONT S.P.A.Inventors: Catia Bastioli, Tiziana Milizia, Giovanni Floridi, Andrea Scaffidi Lallaro, Giandomenico Cella, Maurizio Tosin
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Publication number: 20080318862Abstract: The present invention relates to a novel composition for dental, orthopedic and drug delivery purpose. Specifically, it relates to composition comprising an admixture of a resorbable bone substitute and a crosslinkable prepolymer. It also relates to the composition formed by crosslinking the admixture.Type: ApplicationFiled: May 12, 2008Publication date: December 25, 2008Applicant: A ENTERPRISES, INC.Inventors: Arthur Ashman, V. Prasad Shastri
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Patent number: 7465770Abstract: The invention is directed to a method for preparing an environmentally degradable polymeric compound as well as to such a compound per se and to its use. A compound of the present invention includes a polycondensated lactic acid containing polymer, having a molecular weight (Mw) of from 500 to 50,000 g/mol, to which a flexibilizing aliphatic polyester having a molecular weight of from 500 to 50,000 g/mol is coupled. The amount of lactic acid including groups in the polymeric compound ranges from 50 to 99% and the amount of flexibilizing polyester groups ranges from 1 to 50%.Type: GrantFiled: March 4, 2002Date of Patent: December 16, 2008Assignee: Tate & Lyle Public Limited CompanyInventors: David Neal Lewis, Gerrit Schutte, Henk Westerhof, Jane Janssen, William E. Kelly