Ammonia, Ammonium Hydroxide, Or Salts Thereof Patents (Class 525/378)
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Patent number: 6667349Abstract: The present invention relates to a process for preparing gel-like anion exchangers by aminating crosslinked gel-like styrene divinybenzene bead polymers that contain halogenoalkyl groups in the presence of an inorganic salt and in the absence of organic solvents.Type: GrantFiled: October 11, 2000Date of Patent: December 23, 2003Assignee: Bayer AktiengesellschaftInventors: Holger Lütjens, Reinhold Klipper, Georg Martin, Alfred Mitschker, Michael Holzbrecher
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Patent number: 6649703Abstract: The present invention is concerned with cross-linked sulfonated polymers, eventually perfluorinated, and their preparation process. When molded in the form of membranes, the polymers are useful in electrochemical cells, in a chlorine-sodium electrolysis process, as separator in an electrochemical preparation or organic and inorganic compounds, as separators between an aqueous phase and an organic phase, or as catalyst for Diels-Alder additions, Friedel-Craft reactions, aldol concentrations, cationic polymerization, esterification, and acetal formation.Type: GrantFiled: March 8, 2002Date of Patent: November 18, 2003Assignee: Hydro-QuebecInventors: Christophe Michot, Michel Armand
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Patent number: 6632871Abstract: The metal oxide filler of titanium oxide or silicon oxide for the crosslinkable elastomer composition which has a pH value of from 5.0 to 11.0 and contains impurity metals other than the essential metal of the filler in an amount of not more than 10,000 ppm. The metal oxide filler can be obtained by extraction treatment of a starting metal oxide filler with an acid to reduce a content of impurity metals thereof and then treatment with an alkali to neutralize a remaining acid. The metal oxide filler of the present invention does not cause a crosslinking failure even when added to the elastomer composition and can provide the elastomer molded article suitable as a very clean sealing material for semi-conductor production apparatuses.Type: GrantFiled: January 16, 2001Date of Patent: October 14, 2003Assignee: Daikin Industries, Ltd.Inventors: Hiroyuki Tanaka, Masanori Hasegawa, Tsuyoshi Noguchi
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Publication number: 20030119994Abstract: Copolymer prepared by polymerizing a branched neo vinyl ester component, an acidic component, and a component capable of providing a Tg of about −20° C. to 100° C. The copolymer can optimally be prepared in the presence of at least one surfactant. An amine neutralizing agent can be added to the copolymer.Type: ApplicationFiled: August 6, 2002Publication date: June 26, 2003Inventors: Henry W. Yang, James R. Hester
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Patent number: 6583231Abstract: The invention relates to a process to make aminated polyolefins involving the steps of: ozonolysis of one or more low-molecular weight polyolefins with at least one end group that is unsaturated, in the presence of an alkanol-hydrocarbon mixture, to form polyolefin-alkoxyhydroperoxides, catalytic reduction of the polyolefin-alkoxyhydroperoxides with hydrogen and a suitable catalyst, to form a mixture of hemiacetals and hemiketals, in the presence of a solvent, removal of the catalyst and optional washing of the mixture resulting from step 2, to remove undesired side products, reductive amination of the hemiacetal hemiketal mixture to form the aminated polyolefin end product, preferably at a temperature of 50-200° C., optionally in the presence of a solvent, and removal of the catalyst and optional removal of the solvent. The aminated products obtained are pre-eminently suited for use as an adjuvant in oils and fuels.Type: GrantFiled: January 23, 2001Date of Patent: June 24, 2003Assignee: Akzo Nobel N.V.Inventors: Klaus Ihrig, Manfred Josef Bergfeld, Ulrich Wecker
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Publication number: 20030096916Abstract: Improved amine-terminated polybutadienes (ATPBs) having one or two terminal groups of the formula —CHRNH2 wherein R is C1-C20 alkyl, are prepared by aminating a secondary hydroxyl-terminated polybutadiene having no ether groups. The ATPBs may be hydrogenated or partially hydrogenated, either prior to or after the amination, to saturate or partially saturate the polymers. Preferred ATPBs are of the formula H2NCHR-(polybutadiene)-CHRNH2 wherein R is C1-C20 alkyl.Type: ApplicationFiled: November 20, 2002Publication date: May 22, 2003Inventors: Herbert Shin-I Chao, John Schmidhauser, Alain Robert Drexler, Nan Tian
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Patent number: 6566549Abstract: A continuous process for oligomers which do not contain, as polymerized units, carboxylic acid-containing monomers and their salts, including the steps of: (1) forming a reaction mixture, substantially free of carboxylic acid-containing monomers and their salts, containing: (i) 0.5 to 99.95% by weight of the reaction mixture of at least one ethylenically unsaturated monomer; and (ii) 0.05 to 25% by weight, based on the weight of the ethylenically unsaturated monomer, of at least one free-radical initiator; and (2) continuously passing the reaction mixture through a heated zone wherein the reaction mixture is maintained at a temperature of at least 150° C. and a pressure of at least 30 bars for from 0.1 seconds to 4 minutes to form terminally-unsaturated oligomers. In addition, processes for forming oligomers of vinyl acetate and oligomers of vinyl alcohol are disclosed. Mixtures of fully saturated and terminally unsaturated oligomers are also disclosed.Type: GrantFiled: December 15, 1998Date of Patent: May 20, 2003Assignee: Rohm and Haas CompanyInventors: Gary David Greenblatt, Barry Clifford Lange, Michael Damian Bowe, Richard Foster Merritt, Robert Wilczynski, Gary Robert Larson, Lori Marie Petrovich, David William Whitman
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Patent number: 6541573Abstract: A process for the elimination of formamide from polymers containing N-vinylformamide units involves treating formamide-containing polymers with from 1 to 2 mol-equivalents of an acid or a base, based on 1 mol-equivalent of formamide, under reaction conditions such that the N-vinylformamide units in the polymer undergo virtually no hydrolysis.Type: GrantFiled: February 7, 2001Date of Patent: April 1, 2003Assignee: BASF AktiengesellschaftInventors: Manfred Niessner, Martin Rübenacker, Norbert Mahr
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Publication number: 20030055180Abstract: A multi-functional cement dispersant contains a graft copolymer obtained by a graft reaction of one or more selected from polyoxyalkylene monoalkylester, polyoxyalkylene monoalkylether and polypropyleneglycol of specified kinds to a copolymer obtained by radical polymerization of a mixture of radical polymerizable monomers containing maleic anhydride and monomers of a specified kind at a specified ratio. Hydraulic cement compositions produced with such a multi-functional cement dispersant have a superior fluidity with reduced loss over time and hardened objects produced from such a composition exhibit a superior early strength and have a low dry shrinkage and a high resistance against freezing and thawing.Type: ApplicationFiled: June 24, 2002Publication date: March 20, 2003Inventors: Hiroshi Nakanishi, Masaki Ishimori, Minoru Yaguchi, Takumi Sugamata, Tomomi Sugiyama, Mitsuo Kinoshita, Shinji Tamaki
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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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Publication number: 20030004277Abstract: 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: ApplicationFiled: May 2, 2002Publication date: January 2, 2003Inventors: Walter W. Schmiegel, Phan L. Tang
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Patent number: 6472463Abstract: A polymer dispersant for pigments based on an acrylic graft copolymer wherein the graft copolymer has a weight average molecular weight of at least 3000 and has 10 to 90% by weight of a polymeric backbone and 90 to 10% by weight of macromonomer side chains attached to the backbone and wherein the graft copolymer has at least about 1% by weight of a pigment anchoring group selected from the group consisting of an aromatic ester group, aromatic amine group, and quaternary ammonium group, or mixtures thereof, attached to the backbone or the macromonomer. These materials disperse a wide variety of pigments and are useful in solvent borne coatings where they can provide improved efficiency of pigment use, lower paint viscosity, and reduced emission of volatile organic solvent.Type: GrantFiled: December 17, 1999Date of Patent: October 29, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Sheau-Hwa Ma
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Patent number: 6465576Abstract: A fluoroelastomer composition having improved compression set. The fluoroelastomer composition comprises: (1) a fluoroelastomer containing interpolymerized units of at least one perfluoroolefin, at least one perfluorovinyl ether, and a cure site component capable of participation in a peroxide cure reaction; (2) an additive selected from the group consisting of organo-oniums, phosphates, phosphine oxides, amine oxides, alkyl amines, and heterocyclic amines and salts of heterocyclic amines; (3) a peroxide curative, and (4) optionally a coagent.Type: GrantFiled: June 30, 2000Date of Patent: October 15, 2002Assignee: Dyneon LLCInventors: Werner M. A. Grootaert, Robert E. Kolb
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Patent number: 6423786Abstract: Disclosed are polymers comprising alkylhydrazine-functionalized styrene units of Formula 1 wherein m is an integer from 1 to 3; n is an integer from 0 to 50; p is an integer from 1 to 25; and R1 is C1-C3 alky or benzyl; a process for their preparation, and their use as supports for solid phase synthesis of small molecules and as supported nucleophiles to aid solution phase synthesis.Type: GrantFiled: October 4, 1999Date of Patent: July 23, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Gregory Steven Basarab
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Patent number: 6335398Abstract: A super absorbent polymer composition comprising a chelating compound (A) which has a site capable of forming a chelate with a copper ion and whose copper salt has a solubility in physiological saline at 25° C. of 0.01% by weight or less and a super absorbent polymer (B), wherein the chelating compound (A) is present in an amount of from 0.0001 to 30 parts by weight per 100 parts by weight of said super absorbent polymer (B).Type: GrantFiled: March 7, 1997Date of Patent: January 1, 2002Assignee: Kao CorporationInventors: Takayuki Amiya, Seiichi Miyanaga, Yoko Hanada
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Patent number: 6303703Abstract: The present invention provides a new and improved method of producing halogen-free oligomeric olefin monoamines which avoids the use of costly high-pressure and high-temperature equipment. In one embodiment the method comprises epoxidizing a specific class of oligomeric olefins to provide an epoxidized oligomeric olefin, converting the epoxidized oligomeric olefin to an aldehyde, converting the aldehyde to an oxime and then converting the oxime to an amine. Alternatively, the aldehyde may be formed directly from the oligomeric olefin. In an alternative embodiment, the method comprises converting the aldehyde to a formamide intermediate, and then using hydrolysis to convert the formamide to the oligomeric olefin monoamine. In another preferred embodiment the method includes converting an oligomeric olefin directly to an aldehyde, converting the aldehyde to an oxime and then reducing the oxime to provide the oligomeric olefin monoamine.Type: GrantFiled: October 13, 1999Date of Patent: October 16, 2001Assignee: Ferro CorporationInventors: James D. Kinder, Larry J. Baldwin, James L. Dever, Kevin M. Sonby, Daniel P. Taylor
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Publication number: 20010027239Abstract: The invention relates to a process to make aminated polyolefins involving the steps of:Type: ApplicationFiled: January 23, 2001Publication date: October 4, 2001Inventors: Klaus Ihrig, Manfred Josef Bergfeld, Ulrich Wecker
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Patent number: 6294615Abstract: A copolymer which can provide an aqueous solution thereof having high viscosity, a cationic high molecular weight flocculating agent comprising the copolymer and a process for producing the copolymer. The copolymer is formed by a process where copolymer units necessary to form the copolymer are reacted with a polyamine in the presence of ammonium chloride and/or a hydrochloride of an amine. The copolymer has units represented by the following formulae (1) and (2) where substituents are defined in the specification: The copolymer has a Brookfield viscosity as a 1 wt % aqueous solution thereof of 10 to 10,000 centipoise.Type: GrantFiled: December 8, 1998Date of Patent: September 25, 2001Assignee: Tosch CorporationInventors: Toshiya Higashino, Hiroshi Inoue
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Patent number: 6281296Abstract: Perfluoroelastomer compositions comprising perfluoroelastomers having copolymerized units of tetrafluoroethylene, a perfluoro(vinyl ether), and a nitrile-containing cure site monomer are cured with compounds that are capable of generating ammonia at temperatures of 40° C.-330° C. to produce cured compositions having excellent thermal stability. The ammonia-generating compounds also act as cure accelerators in perfluoroelastomer compositions that incorporate other curing agents.Type: GrantFiled: August 4, 1999Date of Patent: August 28, 2001Assignee: DuPont Dow Elastomers L.L.C.Inventors: James Daniel MacLachlan, Peter Arnold Morken, Walter Werner Schmiegel, Kohtaro Takahashi
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Patent number: 6252006Abstract: A coating composition of a fluororubber containing a fluorine-containing elastomeric copolymer which has repeating units of the formula: —CH2— in the backbone, a polyol curing agent, and a salt or a complex compound of a basic compound having a pKa of at least 8 and an organic acid as a curing accelerator. This composition is a one-pack type composition having a long pot life, and can provide a cured coating in a short time at a relatively low temperature. Furthermore, this composition can be applied by dispenser type coating or screen printing, even when the concentration of the fluorine-containing copolymer is high.Type: GrantFiled: March 25, 1999Date of Patent: June 26, 2001Assignee: Daikin Industries Ltd.Inventors: Nobuyuki Tomihashi, Kiyotaro Terasaka, Toshiyuki Kinoshita
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Patent number: 6228949Abstract: The specification describes various polymers having monomer of formula (I): In formula (I), R1 and R2 are, independently, hydrogen, a C1-C24 alkyl group, an aromatic or heteroaromatic group, a C3-C8 cycloalkyl or C2-C7 heterocycloalkyl group, or a —C(O)R3 group in which R3 is a C1-C24 alkyl group, an aromatic or heteroaromatic group, a C3-C8 cycloalkyl or C2-C7 heterocyclic group; or a —CH2—C(O)—R4 group in which R4 is a C1-C6 alkyl group. At least one of R1 and R2 is a —C(O)R3 group. The polymer may be a homopolymer or a copolymer containing other ethylenically unsaturated monomers. The polymer may be used in a variety of coating compositions such as inks, adhesives, paints and films. Unique monomers where both R1 and R2 are acetoacetyl groups and novel monomers where R2 is an acetoacetyl group are also described.Type: GrantFiled: April 3, 2000Date of Patent: May 8, 2001Assignee: Eastman Chemical CompanyInventors: Dean Charles Webster, Allen Lynn Crain, Chadwick Edward Marlow
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Patent number: 6221971Abstract: Elastomeric vinylidene fluoride-containing copolymers are cured by a sequential process. In a first step, gum fluoroelastomer is mixed at a temperature of 150° C.-250° C. in the presence of an organic base and metal oxide or metal hydroxide to generate an unsaturated product. The unsaturated product is mixed with a polyhydroxy compound, polyamine, or organic peroxide and the resultant compounded fluoroelastomer is crosslinked.Type: GrantFiled: November 18, 1999Date of Patent: April 24, 2001Assignee: DuPont Dow Elastomers, L.L.C.Inventor: David L. Tabb
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Patent number: 6221970Abstract: Curable perfluoroelastomer compositions are disclosed that comprise ammonia and uncured perfluorinated elastomers having copolymerized units of nitrile-containing cure site monomers. Such compositions are curable at low temperatures. In addition, curable perfluoroelastomer compositions are disclosed wherein ammonia functions as a cure rate accelerator in the presence of other curing agents.Type: GrantFiled: August 6, 1999Date of Patent: April 24, 2001Assignees: E.I. DuPont de Nemours and Company, DuPont Dow Elastomers, L.L.C.Inventors: Peter Arnold Morken, Walter Werner Schmiegel
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Patent number: 6160057Abstract: The specification describes various polymers having monomer of formula (I): ##STR1## In formula (I), R1 and R2 are, independently, hydrogen, a C.sub.1 -C.sub.24 alkyl group, an aromatic or heteroaromatic group, a C.sub.3 -C.sub.8 cycloalkyl or C.sub.2 -C.sub.7 heterocycloalkyl group, or a --C(O)R3 group. Preferably R1 and R2 are both a a --C(O)R3 group where R3 which can the same of different is selected from the group consisting of a C.sub.1 -C.sub.24 alkyl group, an aromatic or heteroaromatic group, a C.sub.3 -C.sub.8 cycloalkyl or C.sub.2 -C.sub.7 heterocyclic group; or a --CH.sub.2 --C(O)--R4 group in which R4 is a C.sub.1 -C.sub.6 alkyl group. At lease one of R1 and R2 is a --C(O)R3 group. The polymer may be a homopolymer or a copolymer containing other ethylenically unsaturated monomers. The polymer may be used in a variety of coating compositions such as inks, adhesives, paints and films.Type: GrantFiled: April 3, 2000Date of Patent: December 12, 2000Assignee: Eastman Chemical CompanyInventors: Dean Charles Webster, Allen Lynn Crain, Chadwick Edward Marlow
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Patent number: 6077911Abstract: Polymers essentially comprising units of the formula I ##STR1## in which R.sup.1 and R.sup.2 are hydrogen or methyl andR.sup.3 is hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.5 -C.sub.12 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.6 -C.sub.10 -aryl-C.sub.1 -C.sub.4 -alkyl, it being possible for these radicals, with the exception of the C.sub.1 -C.sub.18 -alkyl radicals, to be up to trisubstituted by radicals selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy and halogen, are prepared by reacting a polymer based on C.sub.1 -C.sub.20 -alkyl esters of acrylic acid, methacrylic acid or mixtures thereof with ammonia or a primary amine in an extruder, by mixing the ammonia or the primary amine by mixing intensively with a melt of the polymer to be reacted, at at most 250.degree. C., before the imidation is carried out, and are used for producing thermoplastic moldings, films or fibers.Type: GrantFiled: July 27, 1993Date of Patent: June 20, 2000Assignee: BASF AktiwngesellschaftInventors: Siegmund Besecke, Andreas Deckers, Juergen Hofmann, Harald Kroeger, Hilmar Ohlig
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Patent number: 6037414Abstract: A polymeric pigment dispersant of a graft polymer having an acrylic polymer backbone and pending from the backbone, polyester side chains, cyclic imide groups and quaternary ammonium groups and the polymer having a calculated number average molecular weight of 8,000-50,000; wherein the graft copolymer is composed of(a) 10-50%, by weight of the of the graft polymer, of an acrylic copolymer backbone having a number average molecular weight of 2500-10,000 which, before reaction, contains 25-75% by weight of polymerized oxirane containing monomers;(b) 20-85%, by weight of the graft polymer, of a polyester copolymer, or mixture of different polyester copolymers, having a number average molecular weight of 500-10,000 which polyester copolymer is carboxylic-acid functional and is attached to the backbone by a reaction of the carboxylic acid functional group with oxirane group of the backbone;(c) 1-16%, by weight of the graft polymer, of cyclic imide groups attached to the backbone by a reaction of the imide group wiType: GrantFiled: September 2, 1998Date of Patent: March 14, 2000Assignee: E. I. du Pont Nemours and CompanyInventors: John A. Simms, Aleksandr Sorser
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Patent number: 6028132Abstract: Antistatic agents, adhesives and coatings with high antistatic properties under low humidity and temperature, which contain a quaternary ammonium salt of formula I: ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 is an alkyl radical having 1-5 carbon atoms, and R.sub.4 is an alkyl radical having 1-3 carbon atoms.Type: GrantFiled: April 21, 1998Date of Patent: February 22, 2000Assignee: Altech Company LimitedInventor: Kanji Hayashi
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Patent number: 6020440Abstract: Elastomeric vinylidene fluoride-containing copolymers are cured by a sequential process. In a first step, gum fluoroelastomer is mixed at a temperature of 150.degree. C.-250.degree. C. in the presence of an organic base and metal oxide or metal hydroxide to generate an unsaturated product. The unsaturated product is mixed with a polyhydroxy compound, polyamine, or organic peroxide and the resultant compounded fluoroelastomer is crosslinked.Type: GrantFiled: September 29, 1997Date of Patent: February 1, 2000Assignee: Dupont Dow Elastomers, L.L.C.Inventor: David L. Tabb
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Patent number: 5959037Abstract: A novel acrylic copolymer elastomer comprising ?I! an alkyl acrylate; ?II! (a) CH.sub.a .dbd.CRCOOR.sub.2 OCOR.sub.1, (b) CH.sub.2 .dbd.CRCO?O(CH.sub.2) pCO!qOR.sub.1 or (c) CH.sub.2 .dbd.CRCOOR.sub.2 ?CO(CH.sub.2)pO!qCOR.sub.1 ; and ?III! (1) CH.sub.2 .dbd.CRCOO(CH.sub.2)nPhOR', (2) CH.sub.2 .dbd.CRCOO(CH.sub.2)nOCO(CH.sub.2)mPhOR', (3) CH.sub.2 .dbd.CHOCO(CH.sub.2)mPhOR', (4) CH.sub.2 .dbd.CHOCO(CH.sub.2)nOCO(CH.sub.2)mPhOR', (5) CH.sub.2 .dbd.CHO(CH.sub.2)nOCO(CH.sub.2)mPhOR' or (6) CH.sub.2 .dbd.CHPh(CH.sub.2)nOCO(CH.sub.2)mPhOR' where R is a hydrogen atom or a methyl group, R.sub.1 is an alkyl group, R.sub.2 is an alkylene group, R' is a hydrogen atom, an acyl group or a trialkylsilyl group and Ph is a phenylene group, provides a blend rubber having an improved cold resistance and an intermediate heat resistance between the heat resistance of acrylic copolymer elastomer and that of fluorine-containing elastomer, when blended with the fluorine-containing elastomer.Type: GrantFiled: August 6, 1996Date of Patent: September 28, 1999Assignee: Nippon Mektron, LimitedInventors: Kuniyoshi Saito, Iwao Moriyama, Jun Okabe
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Patent number: 5952438Abstract: Polymeric polyamines obtainable by reacting linear, alternating carbon monoxide/1-alkene copolymers with ammonia or amines of the formula (I)R--NH.sub.2 (I)where R is --NH.sub.2, --OH, C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.20 -aryl, C.sub.7 -C.sub.20 -arylalkyl, C.sub.7 -C.sub.20 -alkylaryl or an organosilicon radical having 3 to 30 carbon atoms,or with a reagent which releases ammonia or the amine (I), and subsequent hydrogenation.Type: GrantFiled: December 17, 1997Date of Patent: September 14, 1999Assignee: BASF AktiengesellschaftInventors: Detlef Kratz, Ferdinand Lippert, Peter Schwab, Dieter Boeckh, Johannes Perner
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Patent number: 5948882Abstract: Novel film-forming polymers having a carbon backbone and pendant groups containing quaternised nitrogen atoms, at least one substituent on the quaternised nitrogen being hydrophobic and containing at least 8 carbon atoms, have antiperspirant properties. For use as antiperspirants, they are dissolved or suspended in a non-aqueous carrier with a small amount of water.Type: GrantFiled: September 1, 1998Date of Patent: September 7, 1999Assignee: The Gillette CompanyInventors: Brian E. Causton, Frederick C. Baines
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Patent number: 5939492Abstract: This invention provides an adhesion binder for binding fluorinated polymers, for example, PVDF, with incompatible polymers such as polyamides. The binder is a polymer A which has glutarimide, acid, anhydric and acrylate units, and is useful for the production of fuel hoses. When mixed with a fluorinated polymer such as PVDF, copolymer A acts both as a binder and as a barrier.Type: GrantFiled: May 11, 1998Date of Patent: August 17, 1999Assignee: Elt Atochem S.A.Inventor: Serge Lorek
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Patent number: 5891965Abstract: The present invention provides a process of curing a fluorocarbon elastomeric composition comprising: providing a mixture of a saturated elastomeric gum comprising repeating interpolymerized units derived from vinylidene fluoride and a perfluorinated ether of the formula CF.sub.2 .dbd.CF(CF.sub.2).sub.m --O--R.sub..function. wherein m =1-4, R.sub..function. is a perfluorinated aliphatic group optionally containing O atoms, at least one crosslinking agent, and an acid acceptor; shaping the mixture; and curing the resulting shaped article.Type: GrantFiled: January 6, 1997Date of Patent: April 6, 1999Assignee: Dyneon LLCInventors: Allan T. Worm, Miguel A. Guerra
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Patent number: 5888655Abstract: A composite coating is described. The composite comprises a substrate; one or more primer coating layers disposed on the substrate; and at least one topcoat layer disposed on the outermost primer coating layer. The outermost primer coating layer is obtained by reaction of a primer composition that includes a novolac resin having at least one carbamate group and an aminoplast resin.Type: GrantFiled: June 30, 1997Date of Patent: March 30, 1999Assignee: BASF CorporationInventors: Paul J. Harris, Gregory G. Menovcik
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Patent number: 5874506Abstract: A fluorine-containing elastomer comprising vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene having a high fluorine content (e.g. at least 68% by weight) can be vulcanized with a polyol-based cross-linking agent by further copolymerizing 2H-pentafluoropropylene into the elastomer, whereby the resulting vulcanization products having improved characteristics such as rheological properties, normal state physical properties and compression set can be obtained. Vulcanization products obtained by vulcanization with a polyol-based cross-linking agent and a quaternary onium salt compound have a good permeation resistance to fuel oil as a result of a permeation test with a mixed solvent of gasoline/methanol in a volume ratio of 85/15.Type: GrantFiled: April 4, 1997Date of Patent: February 23, 1999Assignee: Nippon Mektron, LimitedInventors: Haruyoshi Tatsu, Akihiro Naraki, Yuichi Yamamoto
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Patent number: 5869600Abstract: Novel film-forming polymers having a carbon backbone and pendant groups containing quaternised nitrogen atoms, at least one substituent on the quaternised nitrogen being hydrophobic and containing at least 8 carbon atoms, have antiperspirant properties. For use as antiperspirants, they are dissolved or suspended in a non-aqueous carrier with a small amount of water.Type: GrantFiled: September 27, 1996Date of Patent: February 9, 1999Assignee: The Gillette CompanyInventors: Brian E. Causton, Frederick C. Baines
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Patent number: 5866670Abstract: A process for producing a polyacetal copolymer, which is extremely heat-stable and is extremely reduced in the quantity of unstable terminals even in a high polymerization yield in which trioxane as the principal monomer, comprises copolymerization of trioxane as the principal monomer with a cyclic ether or cyclic formal having at least one carbon-to-carbon bond as the comonomer by using a specific heteropoly-acid or acid salt thereof as a polymerization catalyst until the content of the remaining monomers is lowered to at most 10% by weight based on all the monomers fed, adding 0.01 to 10% by weight, based on the resulting crude polymer, of a solution containing a catalyst deactivator, or contacting a basic gas as the deactivator to deactivate the catalyst, and subjecting the crude polymer as such to heat melting treatment without washing thereof.Type: GrantFiled: August 15, 1996Date of Patent: February 2, 1999Assignee: Polyplastics Co., Ltd.Inventors: Akira Nakai, Kaoru Yamamoto, Eiji Masuda, Hiroyuki Kanai
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Patent number: 5861464Abstract: Labile end groups in fluorinated thermoplastics, in particular carboxyl and acid fluoride groups, are converted into carboxamide groups when the polymer is treated with an aqueous, ammonia-containing solution. The after-treated products have a pale color, do not cause corrosion during processing and can easily be taken from the molds in transfer molding.Type: GrantFiled: December 20, 1996Date of Patent: January 19, 1999Assignee: Dyneon GmbHInventors: Gerhard Goldmann, Klaus Hintzer, Gernot Lohr, Ludwig Mayer
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Patent number: 5856410Abstract: A new and improved method of manufacturing an acrylic acid superabsorbent polymer, that is manufactured by any known technique, except that the acrylic acid monomer is polymerized to substantial completion before neutralization, and neutralization is accomplished by admixing a solid, e.g., powdered or granular, neutralizing agent into the acrylic acid polymer. Preferably, the neutralizing agent is a solid, non-hydroxide neutralizing agent, such as sodium carbonate, potassium carbonate, ammonium carbonate or mixtures thereof. Cross-linking may be accomplished during polymerization, simultaneously with neutralization, or cross-linking may be carried out in a separate processing step subsequent to neutralization, or both.Type: GrantFiled: August 20, 1997Date of Patent: January 5, 1999Assignee: Amcol International CorporationInventors: Peter W. Carrico, Bala V. Nathan
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Patent number: 5804652Abstract: A method and composition for coating a metal for use in connection with improving corrosion resistance and paint adhesion. The composition is a non-corrosive ester cross-linked polymer system having a plurality of carboxylic functional groups and a plurality of hydroxyl groups. The polymer system may be a bifunctional copolymer or the reaction product of a first polymer having a plurality of carboxylic functional groups (e.g. polyacrylic acid or polymethylvinylmaleic anhydride), and a second polymer having a plurality of hydroxyl groups (e.g. polyvinyl alcohol). The resulting reaction product of these two polymers is a cross-linked polymeric blend. A compound of a Group IV-B element may be added to this polymer blend to increase the degree of cross-linking and improve paint adhesion and corrosion resistance. Such a Group IV-B compound may be an acid such as fluozirconic acid, fluotitanic acid or fluohafnic acid, or a salt such as ammonium zirconium carbonate.Type: GrantFiled: May 30, 1996Date of Patent: September 8, 1998Assignee: Bulk Chemicals, Inc.Inventors: Lawrence E. Jones, Michael D. Wert, JoseB. Rivera
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Patent number: 5780554Abstract: A saturated polymer having a terminal aldehyde or hydroxy substituent which may be used directly or in a derivative form as a dispersant for both fuel and lubricating oil compositions, wherein the saturated polymer has a M.sub.n of about 300 to 10,000, and is derived from a polyolefin which is derived from a monomer of the formula H.sub.2 C.dbd.CHR.sup.4, wherein R.sup.4 is hydrogen or a straight or branched chain alkyl radical, and wherein the polyolefin has at least about 30% terminal vinylidene unsaturation. Particularly desirable amine derivatives can be formed by either a single step aminomethylation process or a two step hydroformylation and reductive amination process.Type: GrantFiled: November 1, 1996Date of Patent: July 14, 1998Assignee: Exxon Chemical Patents Inc.Inventors: Jacob Emert, Istvan T. Horvath, Richard H. Schlosberg, Warren A. Thaler, David A. Young, Stephen Zushma
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Patent number: 5741864Abstract: The present invention provides a functionalized styrenic polymer or copolymer which contains functionalized stryene moiety having the formula: ##STR1## wherein R.sub.1 is hydrogen, alkyl, primary and secondary halo alkyl groups, and R.sub.2 is: ##STR2## where n is an integer of from 2 to about 10, R.sub.3 is independently hydrogen or an alkyl group and X is NH, O or S. The novel copolymers of the present invention have particular utility in forming polymer blends. For example, the amine and alcohol functionalized polymers can be used as compatabilizers by reacting them with a carboxylic acid containing polymer or the like.Type: GrantFiled: July 28, 1995Date of Patent: April 21, 1998Assignee: Exxon Research & Engineering CompanyInventor: Abhimanyu Onkar Patil
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Patent number: 5648143Abstract: A window-containing mailer is provided which is suitable for use in nonimpact printers using heated fuser rolls. A heat and moisture resistant adhesive which resists picking at temperatures encountered in the fusing rolls secures a transparent polymeric film or glassine patch to the mailer substrate. The adhesive may be either a crosslinkable aqueous-based latex or emulsion or a radiation curable composition.Type: GrantFiled: October 28, 1991Date of Patent: July 15, 1997Assignee: The Standard Register CompanyInventors: Rajendra Mehta, Walt Akridge
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Patent number: 5614595Abstract: Polymers Ia and Ib carrying functional groups and obtainable byA) 1. hydrogenation of the olefinic double bonds of a polymer IIa comprisinga) from 20 to 100% by weight of a conjugated diene,b) from 0 to 80% by weight of an aromatic vinyl compound, andc) from 0 to 20% by weight of further comonomers,to give the hydrogenated polymer IIb,2. metallation of IIb using an organoalkali metal compound to give IIc,3. reaction of IIc with a diaziridine III to give IId, and4. hydrolysis or alcoholysis of IId to give Ia, or byB) 1. partial hydrogenation of IIa to give a partially hydrogenated polymer IIb',2. epoxidation of the double bonds of IIb' to give IIe, and3. reaction of IIe with a compound IV carrying functional groups, to give Ib,are suitable as viscosity index improvers for engine oils.Type: GrantFiled: October 16, 1995Date of Patent: March 25, 1997Assignee: BASF AktiengesellschaftInventors: Dietmar Bender, Klaus Bronstert, Helmut Mach, Martin Fischer
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Patent number: 5591806Abstract: A uniquely treated bead of ethylene acrylic acid (EAA) capable of forming a high solids aqueous dispersion in excess of 38% solids wherein the EAA may be prepared by either batch or continuous processes wherein the EAA is substantially fully reacted with ammonia, sodium or potassium in little or substantial absence of water, followed by a separate aqueous dispersion step, resulting in a unique and quick-drying dispersion material highly useful in coating, adhesive, laminating, ink and similar processes, and wherein operating expense and environmental concerns are at a minimum as a consequence thereof.The treated EAA may be prepared in a substantially dry to merely moist state for incorporation into an aqueous dispersion with high percentages of EAA having either higher or lower molecular weight with low viscosities as compared to heretofore.Type: GrantFiled: June 7, 1995Date of Patent: January 7, 1997Assignee: Dominion Chemical CompanyInventors: Frank P. Recchia, Wilson M. Ferrell, W. Maclin Ferrell, Jr.
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Patent number: 5565512Abstract: A fluorine-containing elastomer composition comprising a terpolymer of tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) and cyano group-containing (perfluorovinylether), and a less expensive of the ammonium salt of organic or inorganic acid as a curing agent produce a vulcanization product having good heat resistance and solvent resistance, and when no carbon black, etc. are contained in the composition for curing, transparent vulcanization product having satisfactory physical properties are obtainable.Type: GrantFiled: March 22, 1996Date of Patent: October 15, 1996Assignee: Nippon Mektron, LimitedInventors: Satoru Saito, Futoshi Kumiya, Haruyoshi Tatsu
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Patent number: 5559192Abstract: An air curing polymer composition is disclosed which contains acetoacetate functional polymer and an autoxidizable material. The composition cures on exposure to oxygen. One pack stable ambient curing compositions and a method of stabilizing acetoacetate functional groups to prevent hydrolysis are also disclosed.Type: GrantFiled: June 6, 1995Date of Patent: September 24, 1996Assignee: Rohm and Haas CompanyInventors: Daniel A. Bors, Alvin C. Lavoie, William D. Emmons
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Patent number: 5548033Abstract: A plastic melt is treated for a short-time with a liquid treatment agent under pressure, it is divided into defined subquantities, individual subquantities are brought into contact with a treatment agent and combined for a residence time of less than one second with portions of at least one other subquantity, and portions of the mixture thus formed are separated and combined with another subquantity; the steps of dividing and combining the mixture are repeated several times at intervals of less than one second until an intimate mixture of the plastic melt and the treatment agent has formed, allowing the preparation of especially homogeneously structured thermoplastic materials, e.g., poly(methacrylalkylimide) plastics, which are compatible with poly(methyl methacrylate).Type: GrantFiled: January 27, 1995Date of Patent: August 20, 1996Assignee: Roehm GmbH Chemische FabrikInventors: Heinz Vetter, Werner Hoess, Joachim Dutschke, Hartmut Schikowsky
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Patent number: 5530069Abstract: Dispersions of finely divided high molecular weight polyacrylamide particles are formed and treated with a caustic material to hydrolyze the polymer without undesirable side chain reactions to form high molecular weight anionic acrylamide polymers. A preferred technique for forming these products comprises the formation of a stabilized water-in-oil emulsion of aqueous acrylamide monomer, polymerizing the monomer, reacting the polymer emulsion thus formed with a hydrolysis agent and inverting the resultant hydrolyzed polymers into solution. These materials are useful in a variety of industrial applications for removing particulates from effluent streams.Type: GrantFiled: November 9, 1993Date of Patent: June 25, 1996Assignee: Cytec Technology Corp.Inventors: Roger E. Neff, Roderick G. Ryles
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Patent number: 5530071Abstract: Imidation-modified MMA (co)polymers, characteristically having a Tg from 20.degree. to 30.degree. C. higher than the Tg of the corresponding unmodified MMA (co)polymer, are produced by reacting an amine, e.g., methylamine or cyclohexylamine, with a suspension, in a hydrophobic nonsolvent reaction medium, of beads of such MMA polymer/copolymer.Type: GrantFiled: February 22, 1994Date of Patent: June 25, 1996Assignee: Elf Atochem S.A.Inventors: Patrice Gaillard, Philippe Heim, Stephane Nowe