Chemical Treating Agent Contains Elemental Oxygen Or Oxygen-containing Compound Patents (Class 525/383)
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Patent number: 5120789Abstract: Hot melt adhesive compositions having longer pot lives and comprising adhesive thermoplastic compositions having high cohesion and low flowability based on copolymers A) composed of ethylenically unsaturated monomers containing chelating metal compounds B) and, if desired, other conventional additives C), these hot melt adhesive compositions additionally containing an alkylphenolic resin or an arylphenolic resin in amounts of up to 20% by weight, relative to copolymer A), as crosslinking regulator in order to extend the pot life and to improve their processibility like a thermoplastic, and processes for preparing hot melt adhesive compositions by mixing the starting components.Type: GrantFiled: January 15, 1991Date of Patent: June 9, 1992Assignee: Hoechst AGInventors: Heinz Schmelzer, Manfred Kuechler
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Patent number: 5116930Abstract: The invention provides a self-curing resin which contains one or more blocked isocyanate groups and one or more hydroxyl groups in the molecule and which is produced by polymerizing a monomer component containing an isocyanate-containing, radical-polymerizable monomer as an essential monomer thereof, blocking part of the isocyanate groups in the resulting polymer and then reacting the remaining unblocked isocyanate group or groups with an alkanolamine for hydroxyl group introduction into the polymer.Type: GrantFiled: March 4, 1991Date of Patent: May 26, 1992Assignee: Kansai Paint Company LimitedInventors: Motoshi Yabuta, Yoshiyuki Yukawa, Yasushi Nakao
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Patent number: 5106914Abstract: An adhesive element which exhibits excellent properties with respect to a variety of substrates, such as, skin, glass, fabric, paper, plastic, and other non-porous surfaces which is non-toxic, and non-sensitizing. The element exhibits high cohesive strength so that its integrity is maintained on removal from the substrate leaving no residues and is highly flexible so that total confirmation with the underlying shape of the substrate is maintained. The adhesive composition is the hydrolysis or esterification product of a methylvinyl ether/maleic anhydride co-polymer with an hydroxylated compound. Methods for preparation of the inventive adhesive element are disclosed.Type: GrantFiled: October 1, 1991Date of Patent: April 21, 1992Assignee: ISP Investments Inc.Inventors: Gary S. Russell, John D. Pelesko
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Patent number: 5091492Abstract: A resin composition for use as a paint contains a copolymer prepared by copolymerizing a monomer (I) represented by the following formula (I): ##STR1## wherein either one of X.sub.1 and X.sub.2 stands for an acryloyloxy or methacryloyloxy group, the other being a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R.sub.1 to R.sub.10 each stand for a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; and n is an integer of 1 to 4; with an .alpha.,.beta.-ethylenically unsaturated monomer having a reactive functional group and an .alpha.,.beta.-ethylenically unsaturated monomer having no reactive functional group. A monomer mixture for preparing the copolymer contains 5 to 95 wt % of the monomer (I).Type: GrantFiled: August 7, 1990Date of Patent: February 25, 1992Assignees: Nippon Oil and Fats Co., Ltd., Mitsui Petrochemical Industries, Ltd.Inventors: Masahiro Ishidoya, Kishio Shibato, Osamu Ohe, Masaaki Kawasaki
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Patent number: 5071921Abstract: Thermoplastic block copolymers of the idealized formulae (I)A--B--A; B--A--B or (A--B).sub.x (I)in whichx=1 to 40,and whereinA is the radical of a homopolymer of styrene, vinylnaphthalene, butadiene and isoprene, andB the radical of a homopolymer of a cyclic polycarbonate or lactone,the average molecular weight of blocks A and B being greater than 800, and a process for the preparation of these blocks copolymers in several reaction stages.Type: GrantFiled: October 20, 1989Date of Patent: December 10, 1991Assignee: Bayer AktiengesellschaftInventors: Herbert Eichenauer, Christian Lindner, Edgar Leitz, Karl-Heinz Ott, Hans-Josef Buysch, Peter Mues, Hartwig Hocker, Helmut Keul
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Patent number: 5064912Abstract: A process for converting the pendant keto groups of ketonic polymers to ester groups is provided. The process involves reacting the polymer with an organic peroxyacid oxodizing agent in an inert liquid medium at a temperature from -20.degree. C. to 150.degree. C. to convert substantially all or only a portion of the pendant carbonyl functionality to oxycarbonyl moieties. Homopolymers or copolymers of .alpha., .beta.-unsaturated ketones, such as methyl vinyl ketone and ethyl vinyl ketone, are readily modified with the process of this invention.Type: GrantFiled: December 6, 1990Date of Patent: November 12, 1991Assignee: Quantum Chemical CorporationInventors: Biau-Hung Chang, Jack Kwiatek
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Patent number: 5051529Abstract: Process for the preparation of acetoacetates and other .beta.-ketoesters is provided, involving reaction of nitrogen, oxygen or sulfur nucleophiles with a tetriaryalkyl acetoacetate or tetriaryalkyl .beta.-ketoester.Type: GrantFiled: November 30, 1990Date of Patent: September 24, 1991Assignee: Eastman Kodak CompanyInventors: J. Stewart Witzeman, W. Dell Nottingham
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Patent number: 5047485Abstract: Disclosed is a process for making a normally solid, gel-free, amorphous to predominantly crystalline, propylene polymer material having free-end branches of propylene units and strain hardening elongational viscosity by peroxide decomposition of the propylene polymer material in the substantial absence of oxygen at certain temperatures for certain periods of time, and then deactivating the free radicals in the material.Type: GrantFiled: February 21, 1989Date of Patent: September 10, 1991Assignee: HIMONT IncorporatedInventor: Anthony J. DeNicola, Jr.
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Patent number: 5047477Abstract: The invention relates to a method of producing imide bond-containing resins and flame retardants comprising such resins. The method comprises reacting a halogenated phthalic anhydride, a specific copolymer and a diisocyanate compound in an inert solvent in the presence of a tertiary amine as a catalyst to give an imide bond-containing resin. The resins provide flammable substances with good fire or flame resistance and at the same time themselves have good heat resistance and weather resistance. Therefore, the flame retardants comprising these resins have a wide field of application.Type: GrantFiled: April 12, 1989Date of Patent: September 10, 1991Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Akira Taniuchi, Koichi Niwa
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Patent number: 5041503Abstract: Compositions comprising microparticles of a cross-linkable, glyoxalated (meth)acrylamide containing, polymeric material are disclosed. They are prepared using inverse mircoemulsion polymerization techniques and are useful as wet- and dry-strength agents in paper production.Type: GrantFiled: June 11, 1990Date of Patent: August 20, 1991Assignee: American Cyanamid CompanyInventors: David L. Dauplaise, Joseph J. Kozakiewicz, Joseph M. Schmitt
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Patent number: 5036139Abstract: Hybrid star polymers with acrylic arms and crosslinked polysiloxane cores can be made by a polycondensation of substituent alkoxysilyl groups contained in acrylic ester groups of acrylic block copolymers to form the cores.Type: GrantFiled: September 29, 1989Date of Patent: July 30, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: Harry J. Spinelli
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Patent number: 5032647Abstract: Hybrid star polymers with functional acrylic arms and crosslinked polysiloxane cores are made by a group transfer polymerization process followed by a polycondensation of substituent alkoxysilyl groups to form the cores.Type: GrantFiled: September 29, 1989Date of Patent: July 16, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: Harry J. Spinelli
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Patent number: 4987186Abstract: This invention provides a pressure sensitive adhesive composition comprising an acrylic copolymer component (A) which is at least in part an acetoacetyl group-containing acrylic copolymer and at least one curing component (B) selected from the class consisting of isocyanate compounds, epoxy compounds, aldehyde compounds, non-amino resin amine compounds, metal salts, metal alkoxides, metal chelate compounds, ammonium salts and hydrazine compounds.This adhesive composition is well-balanced in the triad of tack, adhesion, cohesion in adhesion technology and can be advantageously used in various applications such as adhesive tapes and labels.Type: GrantFiled: December 21, 1988Date of Patent: January 22, 1991Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki KaishaInventors: Mamoru Akiyama, Takeshi Matsuyama, Yoshiyuki Yanagida, Akira Yamashita
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Patent number: 4983645Abstract: Small effective amounts of camphorquinone incorporated into polyethylene accelerates the degradation of polyethylene on exposure to ultraviolet light.Type: GrantFiled: July 11, 1989Date of Patent: January 8, 1991Assignee: Mobil Oil CorporationInventor: Frederick C. Schwab
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Patent number: 4983685Abstract: In a process of crosslinking a rubber compound with the usage of an organic peroxide as the crosslinking agent, is incorporated to the rubber compound in an amount of 0.5-20 parts by weight per 100 parts of a rubber substrate a compound selected from imidazole type compounds, thiourea type compounds, thiazole type compounds, thiuram type compounds, dithiocarbamate type compounds, phenol type compounds, triazole type compounds and amine type compounds. The process results no surface tackiness of the rubber product crosslinked in the presence of oxygen.Type: GrantFiled: June 4, 1987Date of Patent: January 8, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Masashi Aoshima, Hironobu Shigematu, Mitsuhiko Sato
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Patent number: 4981916Abstract: Polymerized 1,3-butadiene, including styrenic block copolymers, are functionalized with both carboxylic ester groups and ketone linking groups by reaction with carbon monoxide and an alcohol. Such conjugated diene polymers can be reacted in the presence of a catalyst composition that includes a cobalt compound and an amine ligand. The functionalized 1,3-butadiene polymers may be hydrogenated with a nickel/aluminum catalyst which removes olefinically unsaturated carbon-carbon bonds without substantially hydrogenating the ketone linking groups and carboxylic ester groups.Type: GrantFiled: May 26, 1989Date of Patent: January 1, 1991Assignee: Shell Oil CompanyInventor: Carl L. Willis
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Patent number: 4981913Abstract: Bridged, water-soluble copolymers are obtainable by(A) copolymerization of a monomer mixture of(a) from 50 to 99 mol % of acrylamide and/or methacrylamide,(b) from 50 to 1 mol % of a monoethylenically unsaturated monomer containing actual groups and(c) from 0 to 20 mol % of monomers which differ from (a) and (b),in the presence of a polymerization initiator under conditions such that the acetal groups of the monomers (b) undergo virtually no hydrolysis,(B) hydrolysis of the acetal groups of the monomers (b), present as copolymerized units in the copolymers (A),(C) condensation of the copolymers (B) containing aldehyde groups at a pH above 5, at most to a degree such that the resulting condensates are still water-soluble and(D) stopping of the condensation reaction by adding acid until the pH reaches 3 or less,and are used as paper stock additives in papermaking for increasing the wet strength of paper.Type: GrantFiled: September 20, 1989Date of Patent: January 1, 1991Assignee: BASF AktiengesellschaftInventors: Dietmar Moench, Andreas Stange, Joerg Liebe, Heinrich Hartman, Franz Merger, Manfred Schwartz
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Patent number: 4980422Abstract: Polymerized 1,3-butadiene, including styrenic block copolymers, are functionalized with both carboxylic ester groups and ketone linking groups by reaction with carbon monoxide and an alcohol. Such conjugated diene polymers can be reacted in the presence of a catalyst composition that includes a cobalt compound and an amine ligand. The functionalized 1,3-butadiene polymers may be hydrogenated with a nickel/aluminum catalyst which removes olefinically unsaturated carbon-carbon bonds without substantially hydrogenating the ketone linking groups and carboxylic ester groups.Type: GrantFiled: August 20, 1990Date of Patent: December 25, 1990Assignee: Shell Oil CompanyInventor: Carl L. Willis
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Patent number: 4975495Abstract: A method for the modification of the surface of polytetrafluoroethylene or of copolymers consisting mainly of polytetrafluoroethylene by the action of fluorides of silicone, germanium, phosphorus or arsenic on the surface of the copolymer which is heated to at least 150.degree. C. in the presence of moisture or by the subsequent action of water or steam. The fluorides used penetrate into the polymer to be modified and form a polymeric, tightly adhering network during hydrolysis.Type: GrantFiled: May 29, 1987Date of Patent: December 4, 1990Assignee: Volker RossbachInventors: Volker Rossbach, Mihal Karunaratna, Heinz Nottelmann, Johannes Windeln
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Patent number: 4970265Abstract: Unsaturated hydrocarbon polymers are hydrogenated in the presence of a catalyst obtained by combining a Group VIII-A metal alkoxide or carboxylate and an alkyl or hydride of a metal selected from Groups I-A, II-A and III-B and then functionalized by contacting the hydrogenated polymer with a functionalizing agent before the hydrogenation catalyst is quenched or otherwise deactivated. The hydrogenation is, generally, accomplished at relatively mild conditions to avoid degradation of the polymer and, in the case of unsaturated copolymers comprising aromatic unsaturation, to avoid any significant hydrogenation of the aromatic unsaturation. Generally, the hydrogen partial pressure employed will be below about 1000 psig and the hydrogenation temperature will be below about 125.degree. C.Type: GrantFiled: March 27, 1989Date of Patent: November 13, 1990Assignee: Shell Oil CompanyInventor: Carl L. Willis
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Patent number: 4970266Abstract: The present invention relates to a process for the preparation of a functionalized polymer comprising reacting a polymer or copolymer of a conjugated diene, at least part of the (co)polymer being formed by 1,2-polymerization, with (a) CO and (b) water and/or an alcohol, in the presence of (i) a Pd compound, (ii) a ligand and (iii) an acid, except hydrohalogenic acids.Type: GrantFiled: January 12, 1990Date of Patent: November 13, 1990Assignee: Shell Oil CompanyInventors: Eit Drent, Antonius A. Broekhuis
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Patent number: 4960834Abstract: Syndiotactic 1,2-polybutadiene can be blended with various rubbers in order to improve the properties thereof. For instance, syndiotactic 1,2-polybutadiene can be blended with rubbers utilized in making tire treads in order to improve the heat build-up and wear characteristics of tires. The interaction and adhesion between syndiotactic 1,2-polybutadiene and rubbers can be improved by carboxylating the syndiotactic 1,2-polybutadiene. The presence of carboxylic acid groups on the syndiotactic 1,2-polybutadiene also greatly improves interaction with fillers commonly utilized in rubber compounding, such as carbon black. This invention discloses a process whereby syndiotactic 1,2-polybutadiene can be easily and inexpensively carboxylated.Type: GrantFiled: January 8, 1990Date of Patent: October 2, 1990Assignee: The Goodyear Tire & Rubber CompanyInventor: Lawson G. Wideman
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Patent number: 4959409Abstract: Amino-functional compounds are economically prepared by reacting maleic anhydride with alcohols to form a maleate or fumarate "half-ester" which is combined with certain amines such as aspartate or glutamate, or alkanolamines, under conditions selected to avoid hydrolysis. At low molecular weights, the compounds herein are useful detergency builders; at progressively higher molecular weights within a specific range, combined builder/dispersant and typical dispersant properties emerge. Processes for preparing the compounds and useful detergent compositions containing them are described.Type: GrantFiled: January 14, 1988Date of Patent: September 25, 1990Assignee: The Procter & Gamble CompanyInventors: Stephen W. Heinzman, Michael J. Eis, Molly P. Armstrong
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Patent number: 4946903Abstract: Through radio frequency glow discharge the molecular structure of a fluoropolymer is permanently modified by the substitution of hydrogen and oxygen or oxygen-containing radicals for fluorine to a depth of up to 100 .ANG.. The surface morphological properties on a molecular level (e.g., pore structure) of the modified fluoropolymer remain substantially uncharged from those of the starting polymer as well as the bulk structure below the modified surface region while wettability with respect to low surface tension liquids and surface free energy as determined through critical surface tension are increased and new chemically reactive sites are created for further wet chemical modification or attachment of various functionality for development of a bioprobe device.Type: GrantFiled: March 27, 1989Date of Patent: August 7, 1990Assignee: The Research Foundation of State University of NYInventors: Joseph A. Gardella, Jr., Terrance G. Vargo
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Patent number: 4943676Abstract: Poly(N-vinylformamide) is thermolytically reacted to yield poly(N-vinylamine).Type: GrantFiled: July 12, 1989Date of Patent: July 24, 1990Assignee: Air Products and Chemicals, Inc.Inventors: Robert K. Pinschmidt, Jr., Ta-Wang Lai
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Patent number: 4933394Abstract: A material that includes an organic polymer capable of being rendered electrically conductive by electrochemical oxidation or reduction, and a redox compound ionically or covalently bonded to the polymer. The redox potential of the redox compound is more positive than the redox potential of the polymer when the polymer is electrically conductive in the oxidized state and more negative than the redox potential of the polymer when the polymer is electrically conductive in the reduced state.Type: GrantFiled: May 1, 1987Date of Patent: June 12, 1990Inventor: Joseph S. Foos
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Patent number: 4927892Abstract: The present invention relates to a process for the preparation of a functionalized polymer comprising reacting a polymer or copolymer of a conjugated diene, at least part of the (co)polymer being formed by 1,2-polymerization, with (a) CO and (b) water and/or an alcohol, in the presence of (i) a Pd compound, (ii) a ligand and (iii) an acid, except hydrohalogenic acids.Type: GrantFiled: October 11, 1988Date of Patent: May 22, 1990Assignee: Shell Oil CompanyInventors: Eit Drent, Antonius A. Broekhuis
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Patent number: 4914157Abstract: There is disclosed a process for enhancing the rate of cure of a sulfur vulcanizable rubber. Addition of a hydroformylated rubber to a sulfur vulcanizable rubber enhances the rate of cure and concomitantly improves the rubber/filler interaction of the vulcanized rubber.Type: GrantFiled: September 26, 1988Date of Patent: April 3, 1990Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson G. Wideman, Thomas J. Botzman, George Jalics
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Patent number: 4912145Abstract: Syndiotactic 1,2-polybutadiene can be blended with various rubbers in order to improve the properties thereof. For instance, syndiotactic 1,2-polybutadiene can be blended with rubbers utilized in making tire treads in order to improve the heat build-up and wear characteristics of tires. The interaction and adhesion between syndiotactic 1,2-polybutadiene and rubbers can be improved by carboxylating the syndiotactic 1,2-polybutadiene. The presence of carboxylic acid groups on the syndiotactic 1,2-polybutadiene also greatly improves interaction with fillers commonly utilized in rubber compounding, such as carbon black. This invention discloses a process whereby syndiotactic 1,2-polybutadiene can be easily and inexpensively carboxylated.Type: GrantFiled: April 1, 1988Date of Patent: March 27, 1990Assignee: The Goodyear Tire & Rubber CompanyInventor: Lawson G. Wideman
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Patent number: 4897200Abstract: A carbonyl groups containing macromolecular material which is suitable for use as a sorbent for ammonia, urea or amino compounds. It contains structural units having 3 or more, optionally hydrated vicinal carbonyl groups, preferably keto groups, the C-atoms of which may form part of a ring structure. Particularly, the ring structure contains 5-7 C-atoms, and at least 2 ring atoms may form part of an aromatic ring system. The starting material used may be made of a polymer of the same type as that used in the manufacture of ion exchange resins. The carbonyl group containing unit may form part of an independent compound, e.g., ninhydrin which may be physically bonded to the macromolecular material, but is preferably covalently bonded thereto.Type: GrantFiled: November 10, 1986Date of Patent: January 30, 1990Assignee: Organon Teknika bvInventor: Robert Smakman
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Patent number: 4895621Abstract: A water soluble thermosetting resin useful as a promoter for paper sizing is described. Polyallylamine or a modified polyallyamine is reacted with epichlorohydrin and/or formaldehyde. The formaldehyde may be reacted with the polyallylamine in the presence of dicyandiamide, urea or an ammonium salt or mixtures thereof.Type: GrantFiled: November 18, 1986Date of Patent: January 23, 1990Assignee: W. R. Grace ABInventor: Thord G. Hassler
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Patent number: 4885340Abstract: A high impact polyamide composition comprising at least one polyamide, at least one ethylene ionomer resin and at least one oxide or carbonate compound is specific weight proportions, wherein the polyamide has a relative viscosity of at least 3.15 in 98% sulfuric acid. The composition may further comprise an elastomeric olefin copolymer, an elastomeric styrene copolymer and/or a polyvalent alcohol. The polyamide composition has excellent mechanical strength, thermal resistance and impact strength even at weld-line portions so that it can advantageously be employed for manufacturing various shaped articles, such as automobile parts and sporting goods.Type: GrantFiled: March 28, 1988Date of Patent: December 5, 1989Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Tetsuo Hamada, Junichi Nakahashi, Ryoichi Nakai
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Patent number: 4880888Abstract: A water-absorbent resin having excellent physical properties can be produced by a process wherein an aqueous solution containing an .alpha.,.beta.-unsaturated carboxylic acid and an alkali metal salt thereof in a total amount of 25% by weight or more is subjected to polymerization with a radical polymerization initiator in a petroleum-based hydrocarbon solvent in the presence or absence of a crosslinking agent, characterized by using, as a surfactant, a polyglycerine--fatty acid ester having an HLB of 2 to 16 and represented by the general formula ##STR1## (wherein R is an acyl group or hydrogen atom and n is an integer of 0 to 8).Type: GrantFiled: January 5, 1987Date of Patent: November 14, 1989Assignee: Seitetsu Kagaku Co., Ltd.Inventors: Shigeji Obayashi, Morio Nakamura, Takushi Yamamoto, Hitoshi Tanaka, Yuji Sakamoto
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Patent number: 4868243Abstract: A suber-toughened multiphase thermoplastic composition is provided by incorporating an effective amount of at least one functionalized, selectively hydrogenated alkenyl arene/conjugated diene block copolymer to which has been grafted an effective amount of carboxyl functional groups primarily in the alkenyl arene blocks thereof with poly (ethylene terephthalate). The carboxyl functional groups are present as carboxylic acids and their salts in an effective salt to acid ratio for super-toughening the composition. Additionally, the block copolymer phase has an effective phase size for super-toughening the composition.Type: GrantFiled: February 5, 1988Date of Patent: September 19, 1989Assignee: Shell Oil CompanyInventors: Richard Gelles, Carl L. Willis, Michael J. Modic
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Patent number: 4868245Abstract: A thermoplastic polymer and an article of manufacture consisting essentially of this polymer are described herein which possess excellent mechanical properties at both room and elevated temperatures. The polymer is obtained by modifying a block copolymer composed of a conjugated diene compound and an alkenyl arene compound. The block copolymer is first selectively hydrogenated and thereafter modified by grafting carboxyl containing functional groups primarily in the alkenyl arene block via metalation. The mechanical properties may be varied and controlled by varying the degree of functionalization (amount of carboxyl groups), and the degree of neutralization of the carboxyl groups from an acid to a metal carboxylate salt.Type: GrantFiled: July 30, 1987Date of Patent: September 19, 1989Assignee: Shell Oil CompanyInventors: Lorelle Pottick, Carl L. Willis, William P. Gergen, Robert G. Lutz
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Patent number: 4826932Abstract: Reaction of a linear alternating copolymer of carbon monoxide and ethylene with a 1,2-dihydroxyalkane of up to 1 additional hydroxyl group produce polydioxolanes having dioxolane moieties attached to the polymer chain through a common carbon atom and furan moieties within the polymer chain.Type: GrantFiled: December 29, 1987Date of Patent: May 2, 1989Assignee: Shell Oil CompanyInventor: Pui K. Wong
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Patent number: 4798873Abstract: The present invention relates to poly-(C.sub.2 -C.sub.10 -.alpha.-olefine)-carboxylic acids of Mw (weight average) 2000 to 350,000, to their preparation by oxidative degradation of polyolefines or by reaction of "Living" polyolefines with CO.sub.2, to their conversion into poly-(C.sub.2 -C.sub.10 -.alpha.-olefine)-carbonyl halides and to their use for preparing polyolefine/polycarbonate block copolymers and the block copolymers obtainable by the process according to the invention.Type: GrantFiled: May 14, 1987Date of Patent: January 17, 1989Assignee: Bayer AktiengesellschaftInventors: Kurt P. Meurer, Helmut Waniczek, Gerd Sylvester, Josef Witte
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Patent number: 4797447Abstract: The present invention relates to an impact resistant polymeric composition comprising a polyester and a thermally stable modified selectively hydrogenated high 1,2 content block copolymer wherein at least one graftable functional molecule is grafted to the block copolymer in the vinylarene block.Type: GrantFiled: August 16, 1985Date of Patent: January 10, 1989Assignee: Shell Oil CompanyInventors: William P. Gergen, Robert G. Lutz
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Patent number: 4783503Abstract: The present invention relates to an impact resistant polymeric composition comprising a polyamide and a thermally stable modified selectively hydrogenated high 1,2 content block copolymer wherein at least one graftable functional molecule is grafted to the block copolymer in the vinylarene block.Type: GrantFiled: August 16, 1985Date of Patent: November 8, 1988Assignee: Shell Oil CompanyInventors: William P. Gergen, Robert G. Lutz
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Patent number: 4772463Abstract: CDP-choline derivatives with macromolecules containing carboxy groups, such as polyacrylates, polymethacrylates, polyglutamates, polyaspartates and polymaleates, or copolymers of acrylic acid and methacrylic acid with methyl acrylate, methyl methacrylate or acrylamide.The polymeric derivatives of the invention gradually release CDP-choline, due to the action of enzymes present in the organism, thus exerting also a protective effect on the CDP-choline molecule.Type: GrantFiled: September 30, 1986Date of Patent: September 20, 1988Inventors: Vincenzo Zappia, Mario De Rosa
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Patent number: 4769410Abstract: Crosslinkable polymeric compositions which are dissolved or dispersed in an organic solvent, a process for their preparation and their use.These polymeric compositions which undergo crosslinking at room temperature or elevated temperatures after drying are obtained by reacting polymeric organic compounds containing carbonyl groups with polyhydrazides in the presence of monoketones or monoaldehydes.They are useful as crosslinking agents for polyepoxide compounds.Type: GrantFiled: October 10, 1986Date of Patent: September 6, 1988Assignee: BASF AktiengesellschaftInventors: Rainer Blum, Gerd Rehmer, Rolf Osterloh, Wolfgang Druschke, Hans Sander
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Patent number: 4764588Abstract: The invention relates to highly filterable polyvinyl polypyrrolidone particles and to the process for improving filterability of standard polyvinyl polypyrrolidone granules, wet cakes and slurries which comprises heating granular polyvinyl polypyrrolidone, containing a minor amount of non-crosslinked and/or unsaturated sites while maintaining between 1 wt. % and 20 wt. % moisture at a temperature of between about 50.degree. C. and about 250.degree. C. under a pressure of from about 5 psig. to about 200 psig. and collecting product having an average particle size distribution between about 40 and 400 mesh, a non-volatile water solubles (NVWS) content less than 2% and a filter flow rate greater than 95.Type: GrantFiled: March 9, 1987Date of Patent: August 16, 1988Assignee: GAF CorporationInventors: Terry E. Smith, Ian W. Cottrell, John D. Pelesko
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Patent number: 4764323Abstract: A method of treating PET preforms and bottles consists of subjecting the preforms or the bottles to a carbon dioxide atmosphere at a higher temperature than the critical temperature of carbon dioxide, a higher pressure than ambient pressure, and for a set time period. The treatment reduces the acetaldehyde concentration in the head of the treated bottles or in the bottles obtained from the treated preforms by stretch-blowing, and also reduces the permeability of gases through the bottle walls.Type: GrantFiled: November 12, 1986Date of Patent: August 16, 1988Assignee: Cobarr S.p.A.Inventor: Hussain A. Al Ghatta
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Patent number: 4758632Abstract: A self-cross-linkable acrylic polymer contains at least two hydroxyalkyl carbamate groups per molecule and may comprise the reaction product of an acrylic backbone polymer containing one or more suitable reactive groups and an amine containing one primary or secondary amine group and at least one hydroxyalkyl carbamate group or precursor thereof. Alternatively, the self-cross-linkable polymer may be obtained by polymerization of an acrylic polymerizable monomer containing at least one hydroxyalkyl carbamate group. The amine is joined to the monomer or backbone polymer by reaction of the primary or secondary amine group thereof with suitable reactive functional groups of the monomer or resin. A method of making the acrylic polymer, which is heat curable to provide a thermoset film or coating, comprises reacting the monomer or backbone polymer with an amine containing hydroxyalkyl carbamate groups or precursors thereof comprising hydrolyzable blocked primary amine groups.Type: GrantFiled: February 6, 1985Date of Patent: July 19, 1988Assignee: American Cyanamid CompanyInventors: Girish G. Parekh, Werner J. Blank, William Jacobs, III
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Patent number: 4755192Abstract: Glassy-type gas separating membranes are conditioned to a state of enhanced permeability through controlled sorption of a selected conditioning gas such as CO.sub.2. Membranes are swelled to a state of plasticity without being rubberized and maintained in this state to allow their permeabilities to settle to a new, higher steady-state value. Upon depressurization, conditioned membranes exhibit enhanced permeability over untreated membranes, without serious loss of permselectivity. Membranes so conditioned must be maintained with a minimum sorption level of a conditioning or maintaining gas pending use to retain their improved characteristics.Type: GrantFiled: April 15, 1987Date of Patent: July 5, 1988Assignee: Board of Regents, The University of Texas SystemInventors: William J. Koros, Susan M. Jordan, Greg K. Fleming
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Patent number: 4717755Abstract: A process for producing a propylene polymer having a carbonyl group at the terminal, said process comprising polymerizing propylene to give a living propylene polymer in the presence of a catalyst composed of beta-diketone vanadium chelate and an aluminum compound represented by the formula R.sub.2 AlX (wherein R is a hydrocarbon group having 1 to 8 carbon atoms and X is a halogen atom), and reacting the living propylene polymer with a carbonylating agent.Type: GrantFiled: December 19, 1985Date of Patent: January 5, 1988Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Yoshiharu Doi, Kazuo Soga, Satoshi Ueki, Makoto Miyazaki
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Patent number: 4708990Abstract: The present invention is directed to a process for preparing polymers which may be coupled (reacted) at temperatures above about 200.degree. C., the process comprising first reacting monomer(s) selected from conjugated dienes and monoalkenyl arenes with an organomonolithium initiator and then reacting the resulting polymeric arms (P-Li) with certain arylcyclobutene monomers. These arylcyclobutene monomers have the formula ##STR1## where X is an alkylene or arylene group, Z is an arylcyclobutene group, R is selected from the group consisting of aryl groups, alkyl groups, ##STR2## and H, and R.sup.1 is an aryl group or alkyl group.Type: GrantFiled: June 18, 1986Date of Patent: November 24, 1987Assignee: Shell Oil CompanyInventors: Pui K. Wong, Dale L. Handlin, Jr.
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Patent number: 4698404Abstract: Improved acrylic acid absorbency resins are made utilizing a chain transfer agent during the polymerization process.Type: GrantFiled: March 16, 1987Date of Patent: October 6, 1987Assignee: Nalco Chemical CompanyInventors: Jeffrey R. Cramm, Kristy M. Bailey
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Patent number: 4695606Abstract: A coating binder additive is prepared comprising a blocked glyoxal resin mixed with a vinyl or acrylic water soluble polymer which is reactive with free glyoxal.Type: GrantFiled: September 22, 1986Date of Patent: September 22, 1987Assignee: Sun Chemical CorporationInventors: William C. Floyd, Sai H. Hui
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Patent number: 4690979Abstract: Poly(alloocimene) is functionalized by reaction with an electrophile to obtain polymers useful as a film-former in a coating composition.Type: GrantFiled: November 5, 1986Date of Patent: September 1, 1987Assignee: Union Camp CorporationInventor: Richard L. Veazey