Aluminum Metal Or Compound Thereof Patents (Class 525/365)
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Patent number: 8993684Abstract: This invention relates flame retardant compositions containing low molecular weight brominated anionic, chain transfer, vinyl aromatic polymers, hereinafter “ACTVAP”. The compositions can accommodate high bromine content while still exhibiting a low thermally labile bromine content. The compositions have glass transition temperatures, Tg, that are predictive of acceptable melt flows and heat distortion temperatures (HDT) in HIPS and ABS based formulations substrates. The compositions, are suitable flame retardant candidates for use in thermoplastic formulations, e.g. polystyrene and ABS formulations.Type: GrantFiled: June 23, 2008Date of Patent: March 31, 2015Assignee: Albemarle CorporationInventors: William J. Layman, Jr., Arthur G. Mack, Charles H. Kolich, Govindarajulu Kumar
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Patent number: 8816002Abstract: The invention provides for preparing a polymer-active agent conjugate, the method comprising the steps of reacting an amino acid derivative with a biologically active agent under conditions to form a polymer-active agent conjugate.Type: GrantFiled: October 21, 2013Date of Patent: August 26, 2014Assignee: Nektar TherapeuticsInventor: Antoni Kozlowski
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Patent number: 8563651Abstract: The invention provides a method comprising the steps of providing a poly(ethylene glycol) having one terminal hydroxyl group; reacting the terminal hydroxyl group of the poly(ethylene glycol) with di(1-benzotriazolyl)carbonate to form a 1-benzotriazolylcarbonate ester of the poly(ethylene glycol); reacting the 1-benzotriazolylcarbonate ester of the poly(ethylene glycol) with an amino acid to form an amino acid derivative; and reacting the amino acid derivative with a biologically active agent under conditions to form a polymer-active agent conjugate.Type: GrantFiled: October 30, 2012Date of Patent: October 22, 2013Assignee: Nektar TherapeuticsInventor: Antoni Kozlowski
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Patent number: 8299173Abstract: The invention provides a method comprising the steps of (i) reacting a water-soluble and non-peptidic polymer having two or more terminal hydroxyl groups with di(1-benzotriazolyl)carbonate to form a water-soluble and non-peptidic polymer having two or more 1-benzotriazolylcarbonate ester groups; and (ii) reacting the water-soluble and non-peptidic polymer having two or more 1-benzotriazolylcarbonate ester groups with a water-soluble and non-peptidic polymer having three or more primary amino groups under conditions effective to form a cross-linked polymer composition.Type: GrantFiled: June 7, 2011Date of Patent: October 30, 2012Assignee: Nektar TherapeuticsInventor: Antoni Kozlowski
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POLYMER COMPOSITIONS OF IMPROVED SCRATCH RESISTANCE, IMPROVED MECHANICAL STABILITY AND IMPROVED HAZE
Publication number: 20120190797Abstract: The present invention provides a composition comprising (i) a polymer, (ii) an organic compound A carrying at least two amide functionalities, and (iii) 12 to 1'000 parts per million (ppm) of a compound B selected from the group consisting of an organic compound C carrying at least two amide functionalities, sugar alcohol acetals and derivatives thereof, metal salts of organic acids and precursor-systems thereof, metal salts of organic phosphoric acids and precursor-systems thereof and metal salts of polyols and precursor-systems thereof, and mixtures thereof, based on the weight of the polymer, as well as shaped articles obtainable from this composition.Type: ApplicationFiled: September 7, 2010Publication date: July 26, 2012Applicant: BASF SEInventors: Per Magnus Kristiansen, Daniel Müller, Michèle Gerster -
Patent number: 7977427Abstract: The invention provides a method comprising the steps of (i) reacting a water-soluble and non-peptidic polymer having two or more terminal hydroxyl groups with di(1-benzotriazolyl)carbonate to form a water-soluble and non-peptidic polymer having two or more 1-benzotriazolylcarbonate ester groups; and (ii) reacting the water-soluble and non-peptidic polymer having two or more 1-benzotriazolylcarbonate ester groups with a water-soluble and non-peptidic polymer having three or more primary amino groups under conditions effective to form a cross-linked polymer composition.Type: GrantFiled: April 8, 2010Date of Patent: July 12, 2011Assignee: Nektar TherapeuticsInventor: Antoni Kozlowski
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Patent number: 7723432Abstract: The invention provides a method for preparing a 1-benzotriazolylcarbonate ester of a water-soluble and non-peptidic polymer by reacting a terminal hydroxyl group of a water-soluble and non-peptidic polymer with di(1-benzotriazolyl)carbonate in the presence of an amine base and an organic solvent. The polymer backbone can be poly(ethylene glycol). The 1-benzotriazolylcarbonate ester can then be reacted directly with a biologically active agent to form a biologically active polymer conjugate or reacted with an amino acid, such as lysine, to form an amino acid derivative.Type: GrantFiled: April 30, 2009Date of Patent: May 25, 2010Assignee: Nektar TherapeuticsInventor: Antoni Kozlowski
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Patent number: 7101932Abstract: The invention provides a method for preparing a 1-benzotriazolylcarbonate ester of a water-soluble and non-peptidic polymer by reacting a terminal hydroxyl group of a water-soluble and non-peptidic polymer with di(1-benzotriazolyl)carbonate in the presence of an amine base and an organic solvent. The polymer backbone can be poly(ethylene glycol). The 1-benzotrialylcarbonate ester can then be reacted directly with a biologically active agent to form a biologically active polymer conjugate or reacted with an amino acid, such as lysine, to form an amino acid derivative.Type: GrantFiled: December 2, 2003Date of Patent: September 5, 2006Assignee: Nektar Therapeutics Al, CorporationInventor: Antoni Kozlowski
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Patent number: 6710125Abstract: The invention provides a method for preparing a 1-benzotriazolylcarbonate ester of a water-soluble and non-peptidic polymer by reacting a terminal hydroxyl group of a water-soluble and non-peptidic polymer with di(1-benzotriazolyl)carbonate in the presence of an amine base and an organic solvent. The polymer backbone can be poly(ethylene glycol). The 1-benzotriazolylcarbonate ester can then be reacted directly with a biologically active agent to form a biologically active polymer conjugate or reacted with an amino acid, such as lysine, to form an amino acid derivative.Type: GrantFiled: February 6, 2002Date of Patent: March 23, 2004Assignee: Nektar Therapeutics AL, CorporationInventor: Antoni Kozlowski
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Patent number: 6686420Abstract: The invention is directed to a pneumatic tire having at least one component comprising a vulcanizable rubber composition, wherein the vulcanizable rubber composition comprises, based on 100 parts by weight of elastomer (phr), from about 30 to 100 phr of high trans random SIBR, and from about zero to about 70 phr of at least one additional elastomer, wherein the high trans random SIBR comprises from about 3 to about 30 percent by weight of styrene.Type: GrantFiled: December 19, 2002Date of Patent: February 3, 2004Assignee: The Goodyear Tire & Rubber CompanyInventors: David John Zanzig, Adel Farhan Halasa, John Robert Zuppo, III, John Joseph Andre Verthe
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Patent number: 6313231Abstract: A superabsorbent resin composition comprising the following components (A), (B) and (C), wherein (A) is a superabsorbent resin, (B) is a metal compound containing at least one metal A selected from the group consisting of titanium and zirconium and (C) is a chelating agent.Type: GrantFiled: July 2, 1998Date of Patent: November 6, 2001Assignee: Kao CorporationInventors: Yasunori Hosokawa, Tadashi Igarashi, Isao Tsuru, Yoko Hanada
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Patent number: 5523353Abstract: A rubber composition is provided which comprises 100 parts by weight of ethylene-(meth)-acrylate copolymer rubbers and/or ethylene-(meth)-acrylate-unsaturated glycidyl ester copolymers, 5 to 300 parts by weight of a hydroxide of a typical metallic element belonging to Group II or III of the Mendeleev's periodic table and 0.1 to 50 parts by weight of a metallic acrylate compound. This composition keeps properties required for rubbers such as tensile strength, elasticity, scorch resistance and processability at high levels and is excellent in wear resistance and flame retardance.Type: GrantFiled: May 2, 1994Date of Patent: June 4, 1996Assignee: Sumitomo Chemical Company, LimitedInventors: Keisaku Yamamoto, Kiyoshi Ikeda, Masahiro Fukuyama
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Patent number: 5502114Abstract: The present invention provides a linear polyolefin wherein one of the terminals of linear polypropylene or linear ethylene-propylene random copolymer is modified with a (meth)acrylic derivative unit or styrene derivative unit to give a substantially monodipersed system. The feature thereof consists in such a linear polyolefin in which the terminal of linear polypropylene or linear ethylene-propylene random copolymer obtained by living polymerization is modified with a (meth)acrylic derivative unit or styrene derivative unit. For the production thereof, there are used methacrylic acid chloride, acrylic acid chloride, ethylene glycol dimethacrylate, etc. as the (meth)acrylic derivative, and divinylbenzene, etc. as the styrene derivative.Type: GrantFiled: March 16, 1994Date of Patent: March 26, 1996Assignee: Tonen CorporationInventors: Naomi Murakami, Miyuki Usui, Hiroyuki Furuhashi, Satoshi Ueki
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Patent number: 5438101Abstract: A rubber composition is provided which comprises 100 parts by weight of ethylene-(meth)acrylate copolymer rubbers and/or ethylene-(meth)acrylate-unsaturated glycidyl ester copolymers, 5 to 300 parts by weight of a hydroxide of a typical metallic element belonging to Group II or III of the Mendeleev's periodic table and 0.1 to 50 parts by weight of a metallic acrylate compound. This composition keeps properties required for rubbers such as tensile strength, elasticity, scorch resistance and processability at high levels and is excellent in wear resistance and flame retardance.Type: GrantFiled: April 27, 1993Date of Patent: August 1, 1995Assignee: Sumitomo Chemical Company, LimitedInventors: Keisaku Yamamoto, Kiyoshi Ikeda, Masahiro Fukuyama
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Patent number: 5376722Abstract: There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a block of a polymer of a conjugated diene, different from that of formula (1), of at least 4 carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from an aryl-substituted olefin, such as styrene, and the conjugated diene used to polymerize the block I, the second middle polymer block of the diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block.Type: GrantFiled: April 11, 1994Date of Patent: December 27, 1994Assignee: Mobil Oil CorporationInventors: Thomas S. Coolbaugh, Frederick C. Loveless, Demetreos N. Matthews
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Patent number: 5308701Abstract: A method for encapsulating biologically-labile materials such as proteins, liposomes, bacteria and eucaryotic cells within a synthetic polymeric capsule, and the product thereof, are disclosed. The method is based on the use of a water-soluble polymer with charged side chains that are crosslinked with multivalent ions of the opposite charge to form a gel encapsulating biological material, that is optionally further stabilized by interactions with multivalent polyions of the same charge as those used to form the gel. In the preferred embodiment, hydrolytically stable polyphosphazenes are formed of monomers having carboxylic acid side groups that are crosslinked by divalent or trivalent cations such as Ca.sup.2+ or Al.sup.3+, then stabilized with a polycation such as poly-L-lysine. A variety of different compositions can be formed from the crosslinked polymer.Type: GrantFiled: May 8, 1992Date of Patent: May 3, 1994Inventors: Smadar Cohen, Carmen Bano, Karyn B. Visscher, Marie B. Chow, Harry R. Allcock, Robert S. Langer
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Patent number: 5198503Abstract: A curable composition characterized in that the composition comprises:(a) a nonaqueous dispersion of a particulate polymer insoluble in an organic liquid and prepared by polymerizing a radical-polymerizable unsaturated monomer in the organic liquid in the presence of a dispersion stabilizer resin, the stabilizer resin being a polymer consisting essentially of an alkoxysilane-containing vinyl monomer which is a compound represented by the formula ##STR1## wherein X is ##STR2## R.sub.1 is a hydrogen atom or methyl, R.sub.2 is a bivalent saturated aliphatic hydrocarbon group having 1 to 6 carbon atoms, R.sub.3 and R.sub.4 are the same or different and are each phenyl, alkyl having 1 to 6 carbon atoms or alkoxyl having 1 to 10 carbon atoms, R.sub.5 is alkyl having 1 to 10 carbon atoms, and n is an integer of from 1 to 100; anda curing catalyst, or a chelate compound serving as a crosslinking curing agent admixed with the nonaqueous dispersion.Type: GrantFiled: November 20, 1990Date of Patent: March 30, 1993Assignee: Kansai Paint Company, LimitedInventors: Nobushige Numa, Kaoru Morita, Yasushi Nakao
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Patent number: 4972027Abstract: Disclosed is a composition curable at a low temperature and characterized in that the composition comprises:(a) a nonaqueous dispersion of a particulate polymer insoluble in an organic liquid and prepared by polymerizing a radical-polymerizable unsaturated monomer in the organic liquid in the presence of a dispersion stabilizer resin, the stabilizer resin being at least one of a copolymer comprising as its monomer components an oxirane-containing vinyl monomer and an alkoxysilane-containing vinyl monomer and a vinyl copolymer comprising as its monomer components a polysiloxane macromonomer and an oxirane-containing vinyl monomer,(b) a chelate compound admixed with a nonaqueous dispersion.Type: GrantFiled: November 15, 1988Date of Patent: November 20, 1990Assignee: Kansai Paint Company, LimitedInventors: Osamu Isozaki, Noboru Nakai, Shinji Sugiura, Satoru Ito, Seiji Takami
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Patent number: 4767804Abstract: The invention provides a polymer derivative comprising the reaction product of a metal compound and a polymer having functional groups. The metal compound may be an acetate, carbonate, chloride, hydroxide, oxalate, oxide or sulphate of Al, Ba, Ca, Ce, Cd, Co, Cr, Cu, Fe, Hg, K, Li, Mg, Mn, Mo, Na, Pb, Sn, Ti, V, Zn and Zr. The functional group may be a carboxylic acid group, a thiol group or an olefinic group.The invention includes a process for efficiently reacting a functional group on a polymer with at least one co-reagent wherein the co-reagents are rendered compatible with the polymer, for example by being dissolved in the polymer or in a solution thereof whereby the reaction is effected in a single phase. The process may be a two stage process which comprises forming a metal derivative of a polymer of relatively low molecular weight and then incorporating the metal derivative into a polymer of higher molecular weight.Type: GrantFiled: September 4, 1986Date of Patent: August 30, 1988Assignee: Rubber Bands and Plastic Research Association of Great BritainInventor: Bryan G. Willoughby
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Patent number: 4721750Abstract: A primer composition comprising:(A) 100 parts by weight of copolymer obtained by reacting(1) an acrylic compound represented by the following general formula: ##STR1## wherein R.sup.1 and R.sup.2 respectively represent groups selected from the group consisting of a hydrogen atom and monovalent substituted or non-substituted hydrocarbon group; with(2) a silane compound represented by the following formula: ##STR2## wherein R.sup.3 represents a group selected from the group consisting of a hydrogen atom and monovalent substituted or non-substituted hydrocarbon groups, R.sup.4 represents a monovalent substituted or non-substituted hydrocarbon group, and Q.sup.1 represents a divalent hydrocarbon group having 1 to 6 carbon atoms,in the weight ratio of 0.1 to 1,000 wt % with respect to the component (1), in the presence of a free-radical initiator;(B) 0.Type: GrantFiled: March 13, 1987Date of Patent: January 26, 1988Assignee: Toshiba Silicone Company, Ltd.Inventors: Nobuo Nakamura, Tsuneo Motegi, Yasuji Matsumoto
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Patent number: 4513117Abstract: A process as disclosed for producing vinylic alcohol copolymers by reacting vinyl ester or carbon monoxide copolymers with organometallic compounds in a homogeneous reaction medium.Type: GrantFiled: May 7, 1984Date of Patent: April 23, 1985Assignee: Northern Petrochemical CompanyInventor: Richard W. Fries
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Patent number: 4281087Abstract: Block and graft lactone copolymers are prepared by reacting a base polymer containing hydroxyl groups with an organometallic catalyst of the formula ##STR1## wherein R.sub.1 ', R.sub.2 ', R.sub.3 ', and R.sub.4 ' are alkoxy groups (alcoholate groups), M' is a trivalent metal and M is a divalent metal, whereby the catalyst becomes bonded to the base polymer by way of the hydroxyl groups. Then the remaining alkoxy groups are converted to acyl groups and thereafter the organometalic end-groups are reacted with a lactone to form the lactone polymer moiety. The resulting block and graft copolymers are particularly useful when blended with other polymers, as for example polyvinyl chloride.Type: GrantFiled: August 13, 1979Date of Patent: July 28, 1981Assignee: Philippe TeyssieInventors: Jean Heuschen, Robert Jerome, Philippe Teyssie