Aftertreated Polymer (e.g., Grafting, Blocking, Etc.) Patents (Class 424/78.17)
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Patent number: 7432330Abstract: The present invention is directed to hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors.Type: GrantFiled: December 31, 2003Date of Patent: October 7, 2008Assignee: Nektar Therapeutics AL, CorporationInventors: Antoni Kozlowski, Remy F. Gross, III, Samuel P. McManus
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Publication number: 20080220034Abstract: Textile treatment agents and/or capsules comprising a polymer having antiadhesive action against microorganisms which adhere to a textile substrate, methods of treating textile substrates therewith and the textile so treated, wherein the polymer comprises a polymeric structural element selected from the group consisting of polyesters, polysaccharides, polyethers, polyurethanes, polyureas, polyamides, and heteropolymers thereof.Type: ApplicationFiled: January 13, 2006Publication date: September 11, 2008Applicant: Henkel KGaAInventors: Dirk Bockmuhl, Heide-Marie Hohne, Noelle Wrubbel, Dorothee Heidemeter, Doris Dahlmann, Thomas Plantenberg, Hermann Jonke, Rolf Bayersdorfer, Andre Schafer, Roland Breves
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Publication number: 20080206184Abstract: The present invention broadly relates to the field of protein modification and more specifically, water soluble block polymers, their attachment to drugs, and methods of making and use thereof.Type: ApplicationFiled: February 7, 2008Publication date: August 28, 2008Applicant: AMGEN INC.Inventors: Colin V. Gegg, Olaf B. Kinstler
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Publication number: 20080206183Abstract: The use of monomers of active a-amino acids for the preparation of hydrophobic polypeptides in the form of precipitates, whereby the polypeptides result from the polymerization of the aforementioned monomers of active a-amino acids in an aqueous solvent and can be resolubilized in the solvent.Type: ApplicationFiled: April 27, 2006Publication date: August 28, 2008Applicant: Central national De La Recherche ScientifiqueInventors: Auguste Commeyras, Helene Collet, Eddy Souaid, Herve Cottet, Bernard Romestand, Odile Yvonne Marie Trambouze
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Publication number: 20080206182Abstract: The present invention relates to polymers functionalized by an aminooxy group or a derivative thereof, conjugates, wherein the functionalized polymers are covalently coupled with a protein by an oxime linking group, a process for preparing the functionalized polymers, a process for preparing the conjugates, functionalize polymers as obtainable by the process of the present invention, conjugates as obtainable by the process of the present invention, and pharmaceutical compositions comprising at least one conjugate of the present invention and the use of said conjugates and compositions for the prophylaxis or therapy of the human or animal body.Type: ApplicationFiled: August 6, 2004Publication date: August 28, 2008Applicant: FRESENIUS KABI DEUTSCHLAND GMBHInventors: Klaus Sommermeyer, Ronald Frank, Norbert Zander
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Publication number: 20080181859Abstract: Disclosed herein are novel block (co)polymers comprising from 35 to 100 wt. %, based on the weight of the block containing them, of silicone monomers chosen from a given list. Also disclosed herein are cosmetic and pharmaceutical compositions containing said polymers, as well as a method of cosmetic treatment employing them, and a method of preparation of said polymers.Type: ApplicationFiled: November 16, 2007Publication date: July 31, 2008Inventor: Celine Farcet
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Publication number: 20080181953Abstract: Composition containing, in a physiologically acceptable medium, a tensioning polymer and organic-mineral hybrid particles. Process, particularly for facial skin, in particular wrinkled skin, involving the application of the invention composition to the skin.Type: ApplicationFiled: January 8, 2008Publication date: July 31, 2008Applicant: L'OREALInventor: Guillaume CASSIN
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Publication number: 20080171013Abstract: Improved posaconazole-based compositions and methods of treating and preventing fungal infections, cancer or metastatic diseases are disclosed. In preferred aspects, the conjugates are PEG-posaconazole conjugates in which the PEG has a molecular weight of about 20,000 daltons.Type: ApplicationFiled: January 15, 2008Publication date: July 17, 2008Applicant: ENZON PHARMACEUTICALS, INC.Inventor: Hong Zhao
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Publication number: 20080166317Abstract: Silane-modified polymeric amines having a weight average molecular weight of 10,000 to 1,000,000 g/mol, and comprising at least one structural unit of the formula (I) which unit may comprise part of the main polymer chain or may be bound to the main polymer chain by an anchor group: wherein X represents a bond or a —(CR4R5)n— group; Z represents a —CONH—, —(CH2)m—O—, or —(CH2)o—CH(OH)—(CH2)p—(O)q— group; m represents a number 1 to 6; o represents a number 0 to 6; p represents a number 1 to 6; q represents a number 0 or 1; r represents a number 0 or 1; R1, R2, and R3 each independently represent an alkyl, an OH, or an O-alkyls; R4 and R5 each independently represents an H or an alkyl; and n represents a number 1 to 20; methods for their preparation, biocidal formulations containing the same and uses therefore.Type: ApplicationFiled: May 9, 2006Publication date: July 10, 2008Inventors: Harald Keller, James Bullock, Norbert Heidinger
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Patent number: 7396527Abstract: Polymers (i.e. polyesters, polyamides, polythioesters, polyanhydrides, or a mixture thereof) which degrade hydrolytically to provide a combination of a beta-lactam antibiotic (e.g., amoxicillin) and a beta-lactamase inhibitor (e.g., clavulanic acid) (or a pharmaceutically acceptable salt thereof) are provided. Methods of producing these polymers, intermediates useful for preparing these polymers, and methods of using these polymers to deliver a combination of a beta-lactam antibiotic and a beta-lactamase inhibitor (or a pharmaceutically acceptable salt thereof) to a host are also provided.Type: GrantFiled: August 6, 2004Date of Patent: July 8, 2008Assignee: Rutgers, The State University of New JerseyInventor: Kathryn E. Uhrich
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Publication number: 20080159976Abstract: Disclosed is a method for lowering elevated uric acid levels in a patient having a plasma level of uric acid (pUAc) of more than about 6 mg/dL, the method consisting of administering to said patient an intravenous injections every 2 to 4 weeks of about 8 mg PEG-uricase.Type: ApplicationFiled: September 7, 2007Publication date: July 3, 2008Inventors: Jacob Hartman, Simona Mendelovitz, Claudia D. Rehrig, William Huang, Zebulun D. Horowitz, Royce W. Waltrip, David Erick Wright, Michelle A. Alton, Allan N. Maroli
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Patent number: 7384626Abstract: The present invention describes compositions and methods for sorbing and/or destroying dangerous substances such as chemical and biological warfare agents. The present invention relates to dendritic polymers, specifically, to quaternary ammonium functionalized dendritic polymers and N-Halamine functionalized dendritic polymers. Such dendrimers are useful for the capture and neutralization of biological and chemical warfare agents.Type: GrantFiled: August 31, 2005Date of Patent: June 10, 2008Assignee: Triton Systems, Inc.Inventors: Raymond P. Denkewicz, Jr., Arjan Giaya, Yoojeong Kim, Lawino Kagumba, Fengying Shi
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Patent number: 7345117Abstract: The present invention relates to the synthesis of a haemocompatible polymer, consisting of a polyurethane bound covalently to sulphated hyaluronic acid. These sulfated derivatives have anticoagulative, non-thrombogenic, antiviral and anti-inflammatory properties. They also have the ability to inhibit platelet adhesion, aggregation and activation. The invention is particularly advantageous in resisting the enzyme hyaluronidase, therefore ensuring anti-coagulant activities for longer periods of time when compared to similar compounds. This biocompatible polymer material is well suited for surgical or other medicinal uses.Type: GrantFiled: February 24, 1999Date of Patent: March 18, 2008Inventors: Rolando Barbucci, Marco Consumi, Agnese Magnani, Lanfranco Callegaro
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Publication number: 20080038300Abstract: The present invention relates to a skin patch comprising a matrix adhering to the skin and containing at least one active cosmetic substance and a combination with a skin wrapping to generate an effective compression for the treatment of cellulite and/or striae.Type: ApplicationFiled: March 29, 2006Publication date: February 14, 2008Applicant: Beiersdorf AGInventors: Soeren Jaspers, Carsten Hartkopf, Christian Gaede, Stefan Bodenschatz, Katharina Post, Jens Schulz, Karl-Heinz Woeller
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Patent number: 7326426Abstract: The present invention is directed to medical devices and pharmaceutical compositions containing a synthetic, bioabsorbable, biocompatible liquid polymer that is the reaction product of a polybasic acid or derivative thereof, a polyol and a fatty acid, the liquid polymer having a melting point less than about 40° C., as determined by differential scanning calorimetry.Type: GrantFiled: March 29, 2002Date of Patent: February 5, 2008Assignee: Ethicon, Inc.Inventors: Aruna Nathan, Joel Rosenblatt, Steven C. Arnold
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Patent number: 7316811Abstract: The invention provides a multi-arm block copolymer for use in delivering a variety of bioactive agents. The copolymer of the invention contains a central core from which extend multiple (3 or more) copolymer arms. Each copolymer arm possesses an inner polypeptide segment and an outer hydrophilic polymer segment. Thus, the overall structure of the copolymer comprises an inner core region that includes the central core and the inner polypeptide segment, while the outer core region is hydrophilic in nature. The multi-arm copolymer of the invention is particularly useful for delivery of biologically active agents that can be entrapped within the inner core region.Type: GrantFiled: December 24, 2003Date of Patent: January 8, 2008Assignee: Nektar Therapeutics AL, CorporationInventors: Xuan Zhao, Zhongxu Ren, Kazunori Emoto
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Patent number: 7311901Abstract: The present invention relates to an amphiphilic block copolymer of a hydrophilic block and a hydrophobic block with a terminal hydroxyl group wherein the terminal hydroxyl group of the hydrophobic bock is substituted with a tocopherol or cholesterol group. It also relates to polymeric compositions capable of forming stable micelles in an aqueous solution, comprising the amphiphilic block copolymer and a polylactic acid derivative wherein one or more ends of the polylactic acid are covalently bound to at least one carboxyl group.Type: GrantFiled: October 7, 2004Date of Patent: December 25, 2007Assignee: Samyang CorporationInventors: Min Hyo Seo, Bong Oh Kim, In Ja Choi, Myung Seob Shim
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Patent number: 7288264Abstract: Contact killing antimicrobial articles, devices and formulations are described which kill microorganisms on contact. The articles, devices or formulations contain a non-leaching antimicrobial material which is a unique combination of an organic matrix having biocidal metallic materials non-leachably associated with the matrix. The antimicrobial material may used to form an antimicrobial coating or layer on a surface of the article or device, or may be dispersed in a vehicle or carrier to form a topical antiseptic or disinfectant, or solid shape having contact killing antimicrobial properties. When a microorganism contacts the article, device, or formulation, the biocidal metallic material is transferred to the microorganism in amounts sufficient to kill it.Type: GrantFiled: July 17, 2000Date of Patent: October 30, 2007Assignee: Surfacine Development Company, L.L.C.Inventors: Samuel P. Sawan, Tadmor Shalon, Sundar Subramanyam, Alexander Yurkovetskiy
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Patent number: 7244444Abstract: This invention is directed to graft materials for implanting, transplanting, replacing, or repairing a part of a patient and to methods of making the graft materials. The present invention is also directed to stent grafts and endoluminal prostheses formed of the graft materials. More specifically, the present invention is a graft material which includes polymeric sheet comprising holes. The graft material also comprises an ECM disposed in the holes of the polymeric sheet. The polymeric sheet of the graft material could be a textile or a porous polymer.Type: GrantFiled: March 30, 2005Date of Patent: July 17, 2007Assignee: Cook IncorporatedInventor: Brian L. Bates
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Patent number: 7217770Abstract: A biocompatible stable composition containing a hydrophobic drug, such as paclitaxel. The composition, which forms a syringeable polymeric micellar solution in aqueous or body fluids, is a freeze-dried product comprising a hydrophobic drug, i.e. paclitaxel, and an amphiphilic block copolymer wherein a hydrophobic group having affinity or attraction with the hydrophobic drug, such as paclitaxel, is incorporated on its end.Type: GrantFiled: May 17, 2000Date of Patent: May 15, 2007Assignee: Samyang CorporationInventors: Min-Hyo Seo, Yil-Woong Yi, Jae-Won Yu
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Patent number: 7214366Abstract: Water soluble activated polymers are provided containing an active ethyl sulfone moiety having a reactive site located at the second carbon from the sulfone group. In an embodiment, a poly(ethylene glycol) (PEG) derivative is disclosed that is activated with the active ethyl sulfone moiety for selective attachment to thiol moieties on molecules and surfaces. The activated PEG is water soluble, hydrolytically stable for extended periods, and forms hydrolytically stable linkages with thiol moieties. The linkages generally are not reversible in reducing environments. The PEG derivative is useful for modifying the characteristics of substances including modifying biologically active molecules and surfaces for biocompatibility.Type: GrantFiled: April 22, 2005Date of Patent: May 8, 2007Assignee: Nektar Therapeutics AL, CorporationInventor: J. Milton Harris
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Patent number: 7199098Abstract: The present invention relates to an improved composition of copolymer-1 comprising copolymer-1 substantially free of species having a molecular weight of over 40 kilodaltons.Type: GrantFiled: April 5, 2005Date of Patent: April 3, 2007Assignee: Yeda Research and Development Co., Ltd.Inventors: Eliezer Konfino, Michael Sela, Dvora Teitelbaum, Ruth Arnon
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Patent number: 7169410Abstract: A metal targeting complex which associates with a charged liposomal structure is provided. The metal targeting complex provides the targetability of the liposomal construct to the desired receptor sites of a warm-blooded host for therapy or diagnostic use.Type: GrantFiled: May 18, 1999Date of Patent: January 30, 2007Assignee: SDG, Inc.Inventors: John R. Lau, W. Blair Geho, George H. Snedeker
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Patent number: 7166306Abstract: A method for preparation of block copolymeric nanoparticles is disclosed. The method is a single-step preparation in which block copolymeric nanoparticles are produced directly from a solution of crosslinkable block copolymer in a carrier medium. The block copolymeric nanoparticles thus formed have at least one crosslinked polymeric phase.Type: GrantFiled: February 4, 2003Date of Patent: January 23, 2007Assignee: Rohm and Haas CompanyInventors: Daoyong Chen, Ming Jiang, Huisheng Peng
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Patent number: 7163677Abstract: A synthetic polymer comprises a cationic recurring unit and a crosslinking unit, wherein the crosslinking unit comprises at least a first degradable unit (preferably acid-labile) and at least a second degradable unit (preferably hydrolyzable). A carrier composition comprising the synthetic polymer and a bioactive agent is useful for the delivery of the bioactive agent into the nuclei of the cells.Type: GrantFiled: October 24, 2003Date of Patent: January 16, 2007Assignee: Nitto Denko CorporationInventors: Sheng Li, Chris Castell, Sang Van
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Patent number: 7160941Abstract: A dental composite material that comprises a polyhedral oligomeric silsesquioxane is disclosed. The dental composite material is useful for a variety of dental materials, treatments, and restorative functions including crown and bridge materials, fillings, adhesives, sealants, luting agents or cements, denture base materials, orthodontic materials and sealants, and other dental restorative materials.Type: GrantFiled: September 19, 2003Date of Patent: January 9, 2007Assignee: Pentron Clinical Technologies, LLCInventors: Shuhua Jin, Weitao Jia
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Patent number: 7144573Abstract: A reagent and related method for use in passivating a biomaterial surface, the reagent including a latent reactive group and a bifunctional aliphatic acid (e.g., fatty acid), in combination with a spacer group linking the latent reactive group to the aliphatic acid in a manner that preserves the desired function of each group. Once bound to the surface, via the latent reactive group, the reagent presents the aliphatic acid to the physiological environment, in vivo, in a manner (e.g., concentration and orientation) sufficient to hold and orient albumin.Type: GrantFiled: August 26, 2005Date of Patent: December 5, 2006Assignee: SurModics, Inc.Inventors: Patrick E. Guire, Aron B. Anderson, Richard A. Amos, Terrence P. Everson, Peter H. Duquette
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Patent number: 7125546Abstract: Provided is a complex comprising cisplatin encapsulated therein in a form in which a chlorine ion thereof is ligand-exchanged with a carboxyl anion of a block copolymer comprising poly(ethylene glycol)-poly(glutamic acid). This complex can be a medicinal preparation to which a novel dosage form decreased in toxicity can be applied.Type: GrantFiled: September 26, 2001Date of Patent: October 24, 2006Assignee: Toudai TLO, Ltd.Inventors: Kazunori Kataoka, Nobuhiro Nishiyama, Masayuki Yokoyama, Teruo Okano
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Patent number: 7122618Abstract: The present invention relates to quaternized polyamidoamines which have at least one structural unit of the formula VII in which R1, R2, R4 are straight-chain or branched organic radicals optionally containing heteroatoms; R5 is hydrogen or alkyl, R7 is hydrogen or alkyl or two radicals R7 together form a radical having a meaning given for R4, b is an integer from 0 to 50, and c is an integer from 1 to 50. The invention also relates to the preparation of the quaternary polyamidoamines, to compositions which comprise these compounds, and to the use thereof for cosmetic and pharmaceutical purposes, and in the fields of crop protection and textile dyeing. The present invention also relates to the use of quaternized polyamidoamines of the ionene type as biostatic or biocide and thus also biocidal compositions based on quaternized polyamidoamines.Type: GrantFiled: August 12, 2002Date of Patent: October 17, 2006Assignee: Fraunhofer Gesellschaft zur Foerderung der Angewandteri Forschung E.V.Inventors: Helmut Witteler, Axel Sanner, John-Bryan Speakman, Christian Drohmann, Mathias Hahn, Werner Jaeger
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Patent number: 7122615Abstract: An aromatic polyanhydride having a repeating unit with structure (I) wherein Ar is a substituted or unsubstituted aromatic ring and R is a difunctional organic moiety substituted on each Ar ortho to the anhydride group. Ortho-substituted bis-aromatic dicarboxylic acid anhydride monomers and ortho-substituted bis-aromatic dicarboxylic acid intermediates thereof are also disclosed, as well as implantable medical devices, such as scaffolding implants for tissue reconstruction, drug delivery systems prepared from the aromatic polyanhydrides, as well as therapeutic oral dosage forms and treatment methods.Type: GrantFiled: September 10, 1998Date of Patent: October 17, 2006Assignee: Rutgers, The State University of New JerseyInventor: Kathryn E. Uhrich
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Patent number: 7101954Abstract: The present invention relates to a composition and use of polymeric urethane esters quats as an active ingredient for skin and hair contacting personal care compositions and products related thereto. These compositions are generally produced by the reaction of a trialkanolamine with a hydroxy fatty acid to produce a trialkanolamine fatty acid ester, which is then polymerized with a diisocyanate and in preferred embodiments, further reacted with a quaternizing agent to produce preferred quaternized compositions according to the present invention.Type: GrantFiled: August 14, 2002Date of Patent: September 5, 2006Assignee: Alzo International, Inc.Inventors: Albert A. Zofchak, John Obeji
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Patent number: 7041280Abstract: Disclosed are polymers comprising one or more phenyl boronate ester, boronamide or boronate thioester groups. The phenyl boronate ester, boronamide and boronate thioester groups are represented by one of the following structural formulas: Ar in Structural Formulas (I) and (II) is substituted or unsubstituted; and each Z is —O—, —NH— or —S— and is independently selected. Pharmaceutically acceptable salts of the polymer are also included. The aryl boronate ester, boronamide or boronate thioester can be cleaved to release the corresponding aryl boronic acid. Also disclosed are pharmaceutical compositions comprising the polymers of the present invention and a pharmaceutically acceptable carrier or diluent; and methods of treating a subject for obesity with the polymers of the present invention.Type: GrantFiled: June 27, 2002Date of Patent: May 9, 2006Assignee: Genzyme CorporationInventors: Stephen Randall Holmes-Farley, W. Harry Mandeville, III, Pradeep K. Dhal, Chad Cori Huval, Xinhua Li, Steven Craig Polomoscanik
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Patent number: 7014845Abstract: The invention relates to cross-linked copolymers based on non cross-linked polycarboxylic copolymers, said non cross-linked copolymers containing at least one polysaccharide. The invention also relates to a process for the preparation of these copolymers and their use in particular as a support in pharmaceutical compositions.Type: GrantFiled: October 3, 2000Date of Patent: March 21, 2006Assignee: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S)Inventors: Denis Labarre, Nada Lambert, Cathy Ducos, Françis Diancourt
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Patent number: 7014860Abstract: Production of a hyaluronic acid gel, which comprises keeping hyaluronic acid in water at a hyaluronic acid concentration of at least 5 wt % in the presence of an acid component in an amount at least equimolar with the carboxyl groups in the hyaluronic acid.Type: GrantFiled: February 3, 2000Date of Patent: March 21, 2006Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Masatoshi Kawata, Akio Okamoto, Yoshiaki Miyata, Kazuhiro Ohshima, Osamu Yamamoto, Teruzou Miyoshi, Kazuhiko Arai, Hironoshin Kitagawa, Toshihiko Umeda, Hiroshi Kaneko
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Patent number: 7005143Abstract: A gel material and medical articles including such material, wherein the transparent gel material includes a polymerized poly(alkylene oxide) macromonomer that, prior to polymerization, is free-radically polymerizable, multifunctional (preferably difunctional), and has an average molecular weight of at least about 2000.Type: GrantFiled: April 12, 2002Date of Patent: February 28, 2006Assignee: 3M Innovative Properties CompanyInventors: Ahmed S. Abuelyaman, Scott A. Burton, Duane Fansler, Babu N. Gaddam, Paul Hattam, Maureen A. Kavanagh, Kevin M. Lewandowski, Peter M. Seiler, Steven C. Stickels
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Patent number: 7005124Abstract: Antineoplastic dendritic polymer conjugates which are useful drug delivery systems for carrying antineoplastic agents to malignant tumors are prepared by obtaining a dendritic polymer having functional groups which are accessible to an antineoplastic agent capable of interacting with the functional groups, and contacting the dendritic polymer with the antineoplastic agent. The preferred platin-based analogues of the antineoplastic agents conjugated to the dendritic polymer may be administered intravenously, orally, parentally, subcutaneously, intramuscularly, intraarterially or topically to an animal having a malignant tumor in an amount which is effective to inhibit growth of the malignant tumor. The antineoplastic dendritic polymer conjugates exhibit high drug efficiency, high drug carrying capacity, good water solubility, good stability on storage, reduced toxicity, and improved anti-tumor activity in vivo.Type: GrantFiled: October 29, 2001Date of Patent: February 28, 2006Assignee: Dendritic Nanotechnologies, Inc.Inventors: Navid Malik, Ruth Duncan, Donald A. Tomalia, Roseita Esfand
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Patent number: 6969528Abstract: The invention concerns phosphorus-containing dendrimers and their uses, as gene transfection agents, in vitro and in vivo, including in the treatment of human and animal diseases. These agents or vectors are in particular suited for delivering to appropriate target cells, nucleic acid sequences of interest.Type: GrantFiled: November 23, 2000Date of Patent: November 29, 2005Assignee: Centre National de La Recherche Scientifique-CNRSInventors: Jean-Pierre Majoral, Bernard Meunier, Anne-Marie Caminade, Christophe Loup, Maria-Antonietta Zanta-Boussif
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Patent number: 6962954Abstract: Novel arylisothiocyanate compounds are described that are useful for activating alcohol-containing macromolecules, for example polyethyleneglycols and cellulose, for covalent linkage to amino-groups of biomolecules, for example polypeptides such as antibodies, enzymes, and proteins.Type: GrantFiled: December 19, 2003Date of Patent: November 8, 2005Assignee: Albert Einstein College of Medicine of Yeshiva UniversityInventor: Paul K. Smith
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Patent number: 6956077Abstract: A temperature-responsive polymer and polymer material which has ester bond(s) and/or acid amide bond(s) respectively at one or more sites in the side chain and can be arbitrarily controlled by varying the side chain is provided.Type: GrantFiled: January 31, 2000Date of Patent: October 18, 2005Assignee: Amersham Biosciences KKInventors: Yoshikatsu Akiyama, Kimihiro Yoshizako, Yukio Hasegawa, Teruo Okano
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Patent number: 6951642Abstract: Water-in-oil emulsions, compositions, and methods that include a vinyl polymer having a pKa of less than 4 that includes anionic group-containing side chains and alkyl-Y-containing side chains, wherein Y is O or NR, wherein R is hydrogen or methyl, and wherein the alkyl group of the alkyl-Y-containing side chain has at least 4 carbon atoms on average in a cyclic, branched-, or straight-chain configuration and optionally including one or more heteroatoms.Type: GrantFiled: September 28, 2001Date of Patent: October 4, 2005Assignee: 3M Innovative Properties CompanyInventors: Matthew T. Scholz, Gilbert L. Eian, Ling Lu
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Patent number: 6946527Abstract: AGE precursors can be removed from blood, plasma or PBS buffer using a modified polymeric shaped body that can be produced by reaction of diaminoguanidine and/or triaminoguannidine with a staring polymeric shaped body carrying R—X residues, where R is an alkylene group that may or may not be substituted with a hydroxyl group and contains from 1 to 3 carbon atom, and X is a group that is substituted during the reaction by carrying residues Y, on to with diaminoguanidine, or with a starting polymeric shaped body during the reaction which diaminoguanidine and/or triaminoguannidine are added during the reaction.Type: GrantFiled: July 5, 2001Date of Patent: September 20, 2005Assignee: Membrana GmbHInventors: Horst Dieter Lemke, Arne Gehlen
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Patent number: 6939938Abstract: Novel water-soluble or water-dispersible amphiphilic cationic associative polymers, a process for preparing them and their use in compositions for topical application, such as for cosmetic use, as thickeners, and the compositions comprising these polymers.Type: GrantFiled: January 21, 2003Date of Patent: September 6, 2005Assignee: L'Oreal S.A.Inventors: Sylvi Benard, Simon Trouille, Mireille Arnaud-Roux
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Patent number: 6939539Abstract: The present invention relates to an improved composition of copolymer-1 comprising copolymer-1 substantially free of species having a molecular weight of over 40 kilodaltons.Type: GrantFiled: July 10, 2003Date of Patent: September 6, 2005Assignee: Yeda Research & DevelopmentInventors: Eliezer Konfino, Michael Sela, Dvora Teitelbaum, Ruth Arnon
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Patent number: 6930098Abstract: The present invention relates to the method of using polysulphated cyclodextrins or addition salts thereof for use in the treatment of arthrosis, and pharmaceutical compositions thereof.Type: GrantFiled: July 12, 2001Date of Patent: August 16, 2005Assignee: Universiteit GentInventors: Eric Maximilien Veys, August Lodewijk Verbruggen
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Patent number: 6913805Abstract: The present invention provides an apparatus and method for controlled release of a fumigant into a wooden structure to prevent decay of that structure. According to the present invention, a fumigant in an ampule or container is inserted into the wooden structure. The ampule or container is made of a polymeric material that does not react with the fumigant, but having walls which are permeable to the fumigant such that, when inserted into the wooden structure, the rate of release of the fumigant through the walls of the ampule is slow enough to continuously treat and arrest decay of the wooden structure, particularly decay caused by fungi, over extended periods of time (i.e., 1, 5, 7, 10, 15, 20 or 30 years). The rate of release of the fumigant can be controlled by the type of fumigant, the shape of the container, the specific polymer used to make the container, and by the thickness of the container wall.Type: GrantFiled: July 3, 2002Date of Patent: July 5, 2005Assignee: Electric Power Research InstituteInventors: William W. Harlowe, Jr., William A. McMahon, Donald J. Mangold, Bruce Bernstein
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Patent number: 6884778Abstract: A new oligomer based on alternating fumaric acid and poly(ethylene glycol) (PEG) units is provided. The oligo(PEG fumarate) (OPF) may be functionalized by modification with a biocompatible organic group. Further, the OPF may be cross-linked using radical polymerization in the presence of either a chemical or photo initiator. A cross-linked OPF gel has a swelling behavior that is tunable dependent on the molecular weight of PEG. A cross-linkable PEG macromer, as exemplified by oligo(PEG fumarate), has unsaturated double bonds, for example in the fumaryl groups, along its macromolecular chain that allows for the preparation of hydrogels with tailored structure and properties.Type: GrantFiled: April 30, 2001Date of Patent: April 26, 2005Assignee: William Marsh Rice UniversityInventors: Seongbong Jo, Antonios G. Mikos
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Patent number: 6864350Abstract: PEG and related polymer derivatives having weak, hydrolytically unstable linkages near the reactive end of the polymer are provided for conjugation to drugs, including proteins, enzymes, small molecules, and others. These derivatives provide a sufficient circulation period for a drug-PEG conjugate and then for hydrolytic breakdown of the conjugate and release of the bound molecule. In some cases, drugs that previously had reduced activity when permanently coupled to PEG can have therapeutically suitable activity when coupled to a degradable PEG in accordance with the invention. The PEG of the invention can be used to impart water solubility, size, slow rate of kidney clearance, and reduced immunogenicity to the conjugate. Controlled hydrolytic release of the bound molecule in the aqueous environment can then enhance the drug delivery system.Type: GrantFiled: December 12, 2002Date of Patent: March 8, 2005Assignee: Nektar Therapeutics AL, CorporationInventor: J. Milton Harris
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Patent number: 6861065Abstract: Methods of producing an intraocular lens in vivo comprise preparing a composition of discrete water soluble macromolecular particles, mixing the composition with a water soluble photoinitiator and forming an opthalmically acceptable aqueous solution having a refractive index of at least 1.39, injecting the resulting aqueous solution into the capsular bag of an eye, and initiating crosslinking between the macromolecular particles by irradiation of a wavelength in the range of about 380 to 700 nm to create a lens in the capsular bag.Type: GrantFiled: May 23, 2003Date of Patent: March 1, 2005Assignee: Advanced Medical Optics, Inc.Inventors: Kenneth A. Hodd, Keith Alfred Dillingham, Jacqueline de Groot
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Patent number: 6841617Abstract: Disclosed is a thermogelling biodegradable aqueous polymer solution useful in providing a bioactive agent delivery system. The present invention provides a thermogelling biodegradable aqueous polymer solution with a polyethylene glycol (PEG) block and a biodegradable polyester block, where the blocks are linked to form a polymer of a general structure comprising the formula of An(B), where n is greater than 2 and A is selected from the group consisting of a polyethylene glycol block and a biodegradable polyester block, B is selected from the group consisting of a polyethylene glycol block and a biodegradable polyester block, and A is different from B.Type: GrantFiled: April 11, 2001Date of Patent: January 11, 2005Assignee: Battelle Memorial InstituteInventors: Byeong Moon Jeong, Anna Gutowska
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Publication number: 20040265475Abstract: Methods for coating different regions of an implantable device are disclosed. An embodiment of the method includes dipping a first portion of the implantable device into a first coating substance, and then centrifuging the implantable device to provide an even coating. Next, a second portion of the implantable device is dipped into a second coating substance, and the implantable device is again centrifuged, resulting in an even second coating. In another embodiment, a first coating substance is applied to an interior surface of a cylindrical implantable device, such as a stent or graft, and a second coating substance is applied to an exterior surface. A centrifuge step is performed so that the first coating substance is preferentially and uniformly applied on the interior surface of the implantable device and the second coating substance is preferentially and uniformly applied on the exterior surface of the implantable device.Type: ApplicationFiled: July 21, 2004Publication date: December 30, 2004Inventors: Syed F.A. Hossainy, Daryush Mirzaee