Organic Halogen-containing Compound Contains Oxygen Patents (Class 525/359.3)
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Patent number: 7135534Abstract: A novel polymer support for solid phase peptide synthesis comprising polystyrene backbone and propoxylate function of hexanedioldiacrylate crosslinks having optimum hydrophilic/hydrophobic balance and a process of preparation thereof.Type: GrantFiled: July 24, 2003Date of Patent: November 14, 2006Assignees: Rajiv Gandhi Centre for Biotechnology, The Secretary, Department of BiotechnologyInventors: Gopalakrishnapillai Sankaramangalam Vinod Kumar, Kesavakurup Kumar Santhosh
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Patent number: 7019093Abstract: The invention is a photoswitchable benzocyclobutene-based polymer that while remaining aqueous developable, avoids the problem of significant moisture uptake. The oligomer or polymer comprises a polymeric backbone, benzocyclobutene reactive groups, and photoswitchable pendant groups. The pendant groups are bonded to the polymeric backbone and are characterized by the presence of a moiety that converts to carboxylic acid upon exposure to activating wavelengths of radiation a carboxylic acid. When the oligomer or polymer is subsequently heated to cause cure of the oligomer or polymer, carbon dioxide is emitted and the group forms a substantially non-polar moiety. The invention is also a method of making such a polymer and a method of forming a patterned film using such a polymer.Type: GrantFiled: October 18, 2002Date of Patent: March 28, 2006Assignee: Dow Global Technologies Inc.Inventors: Ying Hung So, Keith J. Watson, Scott J. Bis
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Patent number: 6906133Abstract: The present invention relates to a process for making polyalkyldiallylamine-epihalohydrin resins, the resultant resins and their uses as wet strength additives for papermaking. These resins are obtained by a two step process, wherein the first step comprises the free radical polymerization or copolymerization of an alkyldiallylamine monomer in its protonated form; and the second step comprises reacting an ADAA polymer or copolymer with epihalohydrin under carefully controlled reaction conditions.Type: GrantFiled: January 3, 2003Date of Patent: June 14, 2005Assignee: Hercules IncorporatedInventors: Fang Deng, Daniel Yaodong Gan
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Patent number: 6875822Abstract: The present invention relates to a process for preparing tritylated polystyrene resin. More particularly, the present invention is directed to a process for preparing tritylated polystyrene resins, comprising a step for tritylating polystyrene by reacting polystyrene resin with benzophenone dichloride or substituted benzophenone dichloride to introduce trityl group on the benzene moiety of the polystyrene.Type: GrantFiled: November 22, 2002Date of Patent: April 5, 2005Assignee: Beadtech, Inc.Inventors: Sun-Jong Ryoo, Tae-kyung Lee, Ju-Han Kim
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Patent number: 6858679Abstract: Compositions including one or more anionic polymerization initiators and one or more additives for improving functionalizing efficiency of living polymer anions are disclosed. The present invention also provides compositions including one or more electrophiles and one or more additives for improving functionalizing efficiency of living polymer anions. Novel electrophiles and processes for improving polymer anion functionalization efficiencies are also disclosed.Type: GrantFiled: February 7, 2003Date of Patent: February 22, 2005Assignee: FMC CorporationInventors: Roderic Paul Quirk, Young Joon Lee, James Anthony Schwindeman, Robert James Letchford
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Patent number: 6841625Abstract: To provide a solid fluoroelastomer having nitrile group at the, end which gives a crosslinked product being excellent in heat resistance, solvent resistance, chemical resistance, compression set and cleanliness, and an economical process for preparation thereof. The process for preparing a nitrile group-containing fluoroelastomer by converting amide group contained in a polymer molecular chain of a solid fluoroelastomer into nitrile group in the presence of a dehydrating agent.Type: GrantFiled: November 22, 2002Date of Patent: January 11, 2005Assignee: Daikin Industries, Ltd.Inventors: Masaki Irie, Kazuyoshi Kawasaki, Mitsuru Kishine
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Patent number: 6784254Abstract: 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. The alkylated and crosslinked polymer salt comprises the reaction product of crosslinked polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent.Type: GrantFiled: October 3, 2002Date of Patent: August 31, 2004Assignee: Genzyme CorporationInventors: W. Harry Mandeville, III, Stephen Randall Holmes-Farley
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Publication number: 20040116612Abstract: Compositions of specialty fluoroelastomers containing copolymerized units of tetrafluoroethylene, propylene, optionally vinylidene fluoride, and a cure site monomer selected from the group consisting of i) trifluoroethylene, ii) 3,3,3-trifluoropropene-1, iii) 1,2,3,3,3-pentafluoropropylene, iv) 1,1,3,3,3-pentafluoropropylene, and v) 2,3,3,3-tetrafluoropropene are readily curable with polyhydroxy curing systems. The resulting cured articles have a combination of excellent resistance to alkaline fluids, superior tensile properties and compression set resistance.Type: ApplicationFiled: November 24, 2003Publication date: June 17, 2004Inventors: John Gordon Bauerle, Walter Werner Schmiegel
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Patent number: 6703450Abstract: Compositions of specialty fluoroelastomers containing copolymerized units of tetrafluoroethylene, propylene, optionally vinylidene fluoride, and a cure site monomer selected from the group consisting of i) trifluoroethylene, ii) 3,3,3-trifluoropropene-1, iii) 1,2,3,3,3-pentafluoropropylene, iv) 1,1,3,3,3-pentafluoropropylene, and v) 2,3,3,3-tetrafluoropropene are readily curable with polyhydroxy curing systems. The resulting cured articles have a combination of excellent resistance to alkaline fluids, superior tensile properties and compression set resistance.Type: GrantFiled: May 2, 2002Date of Patent: March 9, 2004Assignee: DuPont Dow Elastomer, L.L.C.Inventors: John Gordon Bauerle, Walter Werner Schmiegel
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Patent number: 6664339Abstract: A base resistant, substantially amorphous fluoroelastomer comprising (1) 10-40 mole percent ethylene units, (2) 32-60 mole percent tetrafluoroethylene units, (3) 20-40 mole percent perfluoro ether units selected from the group consisting of perfluoro(alkyl vinyl ethers), perfluoro(alkyl alkenyl ethers) and perfluoro(alkoxy alkenyl ethers), and (4) 0.1 to 15 mole percent of a cure site monomer selected from the group consisting of i) 3,3,3-trifluoropropene-1, ii) trifluoroethylene, iii) 1,2,3,3,3-pentafluoropropylene, iv) 1,1,3,3,3-pentafluoropropylene, and v) 2,3,3,3-tetrafluoropropene. Such fluoroelastomers may be vulcanized with polyhydroxy curatives. The resulting vulcanized fluoroelastomer compositions are resistant to attack by amines, strong bases and hydrogen sulfide and possess a combination of good low temperature and high temperature properties and they are resistant to oil swell.Type: GrantFiled: May 2, 2002Date of Patent: December 16, 2003Assignee: DuPont Dow Elastomers LLCInventors: Walter Werner Schmiegel, Phan Linh Tang
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Patent number: 6657013Abstract: A composition that includes a fluoropolymer comprising interpolymerized units derived from a cure site monomer comprising a nitrile group; and (b) a catalyst composition comprising a compound having the formula R1C(OR2)═NH, and salts thereof, where R1 and R2, independently, are a substituted or unsubstituted alkyl, aryl, aralkyl, or alkenyl group, as well as a method for curing this composition and cured articles prepared from this composition.Type: GrantFiled: September 11, 2001Date of Patent: December 2, 2003Assignee: 3M Innovative Properties CompanyInventors: Werner M. A. Grootaert, Robert E. Kolb, Klaus Hintzer, Werner Schwertfeger
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Publication number: 20030153693Abstract: Compositions including one or more anionic polymerization initiators and one or more additives for improving functionalizing efficiency of living polymer anions are disclosed. The present invention also provides compositions including one or more electrophiles and one or more additives for improving functionalizing efficiency of living polymer anions. Novel electrophiles and processes for improving polymer anion functionalization efficiencies are also disclosed.Type: ApplicationFiled: February 7, 2003Publication date: August 14, 2003Inventors: Roderic Paul Quirk, Young Joon Lee, James Anthony Schwindeman, Robert James Letchford
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Publication number: 20030125463Abstract: A fluoroelastomer composition comprising (1) a fluoroelastomer consisting essentially of tetrafluoroethylene units, perfluoro(alkyl vinyl ether) units and cyano group containing perfluorovinyl ether units; (2) a specified silane coupling agent; (3) a crosslinking agent and (4) an inorganic filler. This fluoroelastomer composition enables improving the moldability of a crosslinkable composition containing an inorganic filler other than carbon black.Type: ApplicationFiled: November 12, 2002Publication date: July 3, 2003Applicant: Nippon Mektron, Ltd.Inventors: Haruyoshi Tatsu, Satoru Saito, Sunao Ikeda
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Patent number: 6569952Abstract: The addition of oppositely charged surfactant to fluorescent ionic conjugated polymer forms a polymer-surfactant complex that exhibits at least one improved photophysical property. The conjugated polymer is a fluorescent ionic polymer that typically has at least one ionic side chain or moiety that interacts with the specific surfactant selected. The photophysical property improvements may include increased fluorescence quantum efficiency, wavelength-independent emission and absorption spectra, and more stable fluorescence decay kinetics. The complexation typically occurs in a solution of a polar solvent in which the polymer and surfactant are soluble, but it may also occur in a mixture of solvents. The solution is commonly prepared with a surfactant molecule:monomer repeat unit of polymer ratio ranging from about 1:100 to about 1:1. A polymer-surfactant complex precipitate is formed as the ratio approaches 1:1. This precipitate is recoverable and usable in many forms.Type: GrantFiled: September 5, 2001Date of Patent: May 27, 2003Assignee: The Regents of the University of CaliforniaInventors: Liaohai Chen, Su Xu, Duncan McBranch, David Whitten
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Patent number: 6545103Abstract: Compositions including one or more anionic polymerization initiators and one or more additives for improving functionalizing efficiency of living polymer anions are disclosed. The present invention also provides compositions including one or more electrophiles and one or more additives for improving functionalizing efficiency of living polymer anions. Novel electrophiles and processes for improving polymer anion functionalization efficiencies are also disclosed.Type: GrantFiled: July 2, 2001Date of Patent: April 8, 2003Assignee: FMC CorporationInventors: Roderic Paul Quirk, Young Joon Lee, James Anthony Schwindeman, Robert James Letchford
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Patent number: 6525113Abstract: The present invention relates to a process for preparing a cross-linked pollyallylamine hydrochloride. The process involves mixing polyallylamine hydrochloride, water, a hydroxide or alkoxide, and a water-miscible organic solvent or co-solvents, to a reaction mixture and adding a cross-linking agent to the reaction mixture to form a cross-linked polyallylamine.Type: GrantFiled: July 11, 2001Date of Patent: February 25, 2003Assignee: Abbott LaboratoriesInventors: Russell C. Klix, Jufang H. Barkalow, William T. Monte
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Patent number: 6518366Abstract: To provide a solid fluoroelastomer having nitrile group at the end which gives a crosslinked product being excellent in heat resistance, solvent resistance, chemical resistance, compression set and cleanliness, and an economical process for preparation thereof. The process for preparing a nitrile group-containing fluoroelastomer by converting amide group contained in a polymer molecular chain of a solid fluoroelastomer into nitrile group in the presence of a dehydrating agent.Type: GrantFiled: October 1, 2001Date of Patent: February 11, 2003Assignee: Daikin Industries, Ltd.Inventors: Masaki Irie, Kazuyoshi Kawasaki, Mitsuru Kishine
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Patent number: 6518368Abstract: A brominated polystyrene product made by the process comprising pretreating a solution of a polystyrene reactant comprising from about five to about 20 percent by weight of the polystyrene reactant, in a halogenated hydrocarbon solvent with at least about 0.1 percent by weight of an additive to suppress halogenation of the polystyrene backbone, prior to brominating the polystyrene in the presence of a catalyst; subsequently adding a metal halide bromination catalyst to the solution, capable of effecting bromination of the ring without causing crosslinking of the polystyrene; adding to the solution from about 1 to about 3.4 moles of a brominating agent, per mole of polystyrene repeating units; reacting the polystyrene with the brominating agent at a temperature of from about −20° C. to about 50° C., and isolating the brominated polystyrene. A brominated polystyrene is provided having a backbone halogen content of less than about 750 ppm and a &Dgr;E color of from about 5 go about 19.Type: GrantFiled: October 4, 2001Date of Patent: February 11, 2003Assignee: Albemarle CorporationInventors: James C. Gill, James L. Dever
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Patent number: 6518369Abstract: The present invention relates to filled rubber mixes made from polyether/diolefin rubbers. The rubber mixes according to the present invention are suitable for the production of highly reinforced, abrasion-resistant moldings, in particular for the production of tires which exhibit low rolling resistance and elevated wet skid resistance.Type: GrantFiled: November 14, 2001Date of Patent: February 11, 2003Assignee: Bayer AktiengesellschaftInventors: Thomas Scholl, Werner Obrecht, Wilfried Braubach, Ellen Giebeler, Michael Grün, Axel Müller, Mabel Graf
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Patent number: 6482898Abstract: The present invention relates to novel halogenated Wang resins for combinational chemical synthesis, more specifically to halogenated Wang resins expressed by formula (1) useful for the effective tracing of combinational chemical synthetic process on solid supports using X-ray photoelectron spectroscopy (XPS) element analysis method; in formula (1), P represents polystyrene-divinylbenzene; X and Y represent hydrogen atom or halogen atom, which may be identical or different, their total number being 1-4; and at least one of them is halogen atom.Type: GrantFiled: April 12, 2001Date of Patent: November 19, 2002Assignee: Korea Research Institute of Chemical TechnologyInventors: Sung Eun Yoo, Young Dae Gong, Jin Soo Seo
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Publication number: 20020132926Abstract: The present invention relates to filled rubber mixes made from polyether/diolefin rubbers. The rubber mixes according to the present invention are suitable for the production of highly reinforced, abrasion-resistant moldings, in particular for the production of tires which exhibit low rolling resistance and elevated wet skid resistance.Type: ApplicationFiled: November 14, 2001Publication date: September 19, 2002Inventors: Thomas Scholl, Ulrike, Philipp, Christine, Johannes Scholl, Werner Obrecht, Wilfried Braubach, Ellen Giebeler, Michael Grun, Axel Muller, Mabel Graf
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Patent number: 6433026Abstract: 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. The alkylated and crosslinked polymer salt comprises the reaction product of crosslinked polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent.Type: GrantFiled: March 9, 2001Date of Patent: August 13, 2002Assignee: GelTex Pharmaceuticals, Inc.Inventors: W. Harry Mandeville, III, Stephen Randall Holmes-Farley
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Patent number: 6420439Abstract: Described are non-swelling, crosslinked, bead forms of ampholytic base polymers that can be utilized in the chromatographic-type separation of acids from other compounds. Preferred polymers are prepared by modifying a poly-2 or poly-4-vinylpyridine resin crosslinked with divinylbenzene.Type: GrantFiled: April 15, 1999Date of Patent: July 16, 2002Assignee: Reilly Industries, Inc.Inventors: Martin Grendze, Donald W. McQuigg, John T. Wyeth, Ernest Crowe, Katherine M. Weisheit, Eric F. V. Scriven
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Patent number: 6384139Abstract: At least partially vulcanized elastomers are described, these elastomers obtained by at least partially crosslinking (1) an elastomeric polymer containing reactive substituents with (2) a crosslinking agent (a) containing two or more reactive substituents differing from those contained in the elastomeric polymer, and (b) having a number average molecular weight less than about 2000, each of the reactive substituents selected (i) such that those of the elastomer will react with those of the crosslinking agent to at least partially crosslink the elastomer, and (ii) from the group consisting of carboxylic acid, carboxylic anhydride, carboxylic acid salt, carbonyl halide, hydroxy, epoxy, and isocyanate.Type: GrantFiled: January 12, 1999Date of Patent: May 7, 2002Assignee: The Dow Chemical CompanyInventors: Thoi H. Ho, Morgan M. Hughes, Robert T. Johnston, Jimmy D. Allen
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Patent number: 6362266Abstract: Disclosed is a cross-linked polyallylamine polymer composition having reduced cohesiveness, a process for producing a cross-linked polyallylamine polymer having reduced cohesiveness from an aqueous solution of a washed cross-linked polyallylamine polymer treated with a surfactant and to cross-linked polyallylamine polymer compositions produced thereby.Type: GrantFiled: September 3, 1999Date of Patent: March 26, 2002Assignee: The Dow Chemical CompanyInventors: Fredric L. Buchholz, Thomas L. Staples, Christopher M. Chappelow
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Publication number: 20020035214Abstract: A brominated polystyrene product made by the process comprising pretreating a solution of a polystyrene reactant comprising from about five to about 20 percent by weight of the polystyrene reactant, in a halogenated hydrocarbon solvent with at least about 0.1 percent by weight of an additive to suppress halogenation of the polystyrene backbone, prior to brominating the polystyrene in the presence of a catalyst; subsequently adding a metal halide bromination catalyst to the solution, capable of effecting bromination of the ring without causing crosslinking of the polystyrene; adding to the solution from about 1 to about 3.4 moles of a brominating agent, per mole of polystyrene repeating units; reacting the polystyrene with the brominating agent at a temperature of from about −20° C. to about 50° C., and isolating the brominated polystyrene. A brominated polystyrene is provided having a backbone halogen content of less than about 750 ppm and a &Dgr;E color of from about 5 go about 19.Type: ApplicationFiled: October 4, 2001Publication date: March 21, 2002Applicant: Ferro CorporationInventors: James C. Gill, James L. Dever
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Publication number: 20020019495Abstract: Described are preferred processes for preparing quaternary amine polymers of good color, comprising preparing a free base amine polymer by polymerizing a free base amine monomer in the presence of a water-soluble azo initiator, and subjecting the resultant polymer to quaternization conditions. Also described are unique, water-soluble quaternary amine polymers obtainable by such processes, and dye complexing polymer blends useful in the manufacture of detergents.Type: ApplicationFiled: February 9, 2001Publication date: February 14, 2002Inventors: Ramiah Murugan, Eric F.V. Scriven, James R. Stout, Stephanie Syler Metrick
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Patent number: 6225355Abstract: The invention relates to a method for removing bile salts from a patient in need thereof and compositions use full in the method. The method comprises administering to the patient a therapeutically effective amount of a salt of an alkylated and crosslinked polymer. The alkylated and crosslinked polymer salt comprises the reaction product of polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent and a crosslinking agent.Type: GrantFiled: March 22, 2000Date of Patent: May 1, 2001Assignee: GelTex Pharmaceuticals, Inc.Inventors: W. Harry Mandeville, III, Stephen Randall Holmes-Farley
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Patent number: 6180754Abstract: Disclosed are reduced salt polyallylamine polymer compositions, a process for producing a cross-linked polyallylamine polymer from a reduced salt, aqueous solution of a polyallylamine polymer and a multifunctional cross-linking agent and to cross-linked polyallylamine polymer compositions produced thereby.Type: GrantFiled: September 3, 1999Date of Patent: January 30, 2001Assignee: The Dow Chemical CompanyInventors: Kenneth J. Stutts, Russ L. Kiekhaefer
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Patent number: RE37902Abstract: In a process for the suppression of backbone halogenation during the bromination of polystyrenes comprising the step of pretreating a solution of a polystyrene reactant comprising from about five to about 20 percent by weight of a polystyrene reactant, in a halogenated hydrocarbon solvent with at least about 0.1 percent by weight of an additive to suppress halogenation of the polystyrene backbone prior to brominating the polystyrene in the presence of a catalyst; adding a metal halide bromination catalyst to the solution, capable of effecting bromination of the ring without causing crosslinking of the polystyrene; adding to the solution from about 1 to about 3.4 moles of a brominating agent, per mole of polystyrene repeating units; reacting the polystyrene reactant with the brominating agent at a reaction temperature of from about −20° C. to about 50° C., and isolating the brominated polystyrene.Type: GrantFiled: July 19, 1999Date of Patent: November 5, 2002Assignee: Albemarle CorporationInventors: James C. Gill, James L. Dever