Chemical Treating Agent Is A Nitrogen-containing Compound Patents (Class 525/374)
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Patent number: 4795787Abstract: Novel curing agents for synthetic resins containing groups capable of ester formation or amide formation and, optionally polymerizable double bonds which are Michael addition products of monocarboxylic or dicarboxylic acid esters, capable of undergoing Michael addition, with compounds containing at least two double bonds capable of undergoing Michael addition, the two components being reacted in such ratios that the Michael addition product contains at least one ester group capable of transesterification and/or transamidation and at least one polymerizable double bond.Type: GrantFiled: October 5, 1987Date of Patent: January 3, 1989Assignee: Hoechst AGInventor: Gerd Walz
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Patent number: 4789695Abstract: A Mannich base of a high molecular weight acrylamide polymer can be made by reacting, in aqueous solution, the polymer with a Mannich base of a low molecular weight compound such as urea. A composition of the polymer and the Mannich base is preferably substantially non-aqueous.Type: GrantFiled: July 24, 1986Date of Patent: December 6, 1988Assignee: Allied Colloids Ltd.Inventors: David Farrar, Peter Flesher
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Patent number: 4780507Abstract: There is disclosed a thermosetting resin composition comprising a thermosetting cyanate ester resin composition (A) and a butadiene based copolymer (B)(i) or an epoxy resin-modified butadiene based copolymer (B)(ii), in which said component (B)(i) or (B)(ii) are used for modifying said component (A), component (A) and (B) being as follows;(A) a cyanate ester thermosetting resin composition comprising a cyanate ester compound selected from the group consisting of,(i) a polyfunctional cyanate ester having at least two cyanate group in its molecule,(ii) prepolymer of the cyanate ester of (i),(iii) coprepolymer of the cyanate ester of (i) and an amine, and(iv) mixtures thereof, and optionally adding another thermosetting resin,(B)(i) a butadiene based copolymer comprising a butadienaromatic vinytl monomer copolymer having 0.Type: GrantFiled: November 14, 1986Date of Patent: October 25, 1988Assignees: Mitsubishi Gas Chemical Co. Inc., Nippon Soda Co. LtdInventors: Morio Gaku, Hidenori Kimbara, Hiroo Muramoto, Shiro Higashida, Fumio Sato
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Patent number: 4775715Abstract: Cationic polyvinyl alcohol is prepared by blending polyvinyl alcohol under high shear conditions, at 0.degree.-100.degree. C., with a small amount of water, a small excess of base, and a quaternizing agent containing a halohydrin radical and a quaternary ammonium group. The quaternization proceeds with acceptable conversions of about 35 to well over 50%. The quaternized polyvinyl alcohol has many applications, including use as a flocculating agent, as a stabilizing colloid, and in adhesive formulations.Type: GrantFiled: July 23, 1987Date of Patent: October 4, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventors: Aleksander Beresniewicz, Thomas Hassall, Jr.
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Patent number: 4769419Abstract: Novel structural adhesive compositions for metal-bonding applications. The adhesives comprise olefinic-terminated liquid rubbers which are reacted with monoisocyanate compounds. The compositions according to the present invention are especially useful in formulating ambient temperature curable structural adhesive compositions.Type: GrantFiled: December 1, 1986Date of Patent: September 6, 1988Inventor: Terrance H. Dawdy
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Patent number: 4767824Abstract: This invention relates to a process for polymerizing acrylic monomers and possibly non-acrylic co-monomers by means of polymerization-initiating agents of the formula:R--M (I)in which M represents a metal selected among the alkaline and alkaline-earth metals and R represents an alkyl radical, which may have a straight or branched chain and contains 2 to 6 carbon atoms, or an aryl radical.The polymerization or copolymerization is effected in the presence of an additive consisting of a salt of an alkaline or alkaline-earth metal and of a mineral acid, such as lithium chloride.Type: GrantFiled: November 5, 1985Date of Patent: August 30, 1988Assignee: Compagnie Internationale de ParticipationInventors: Trazollah Ouhadi, Rosalia Forte, Robert E. Jerome, Roger M. Fayt, Philippe J. Teyssie
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Patent number: 4758617Abstract: This invention provides a process for preparing a water-absorbing resin which comprises the steps of mixing powder of an inorganic inactive substance with a water-absorbing resin having carboxylate-containing monomer units, and adding water and a high molecular-weight cross-linking agent to the mixture to perform cross-linking reaction and evaporation of water, the cross-linking agent being selected from a specified copolymer (1) and a specified mixture of copolymers (2), and also provides a water-absorbing resin prepared by the process.The process of the invention gives water-absorbing resins improved not only in water-absorbing ability, rate of water absorption, gel strength after water absorption and unlikelihood of affording a wetty feeling after water absorption but also in capability of retaining water under pressure.Type: GrantFiled: June 16, 1986Date of Patent: July 19, 1988Assignee: Arakawa Kagaku Kogyo Kabushiki KaishaInventors: Shozo Tanioku, Nobuyuki Oshima, Jun-ichi Maeno, Kiyoshi Sato
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Patent number: 4755379Abstract: Anticoagulant products are constituted by polymers (homopolymers or copolymers) including in their chain substitutable groups on which are fixed statistically, groups X and/or Y and/or V, where X denotes the group --SO.sub.3 R.sub.1 or --R.sub.3 --SO.sub.3 R.sub.1, R.sub.1 being a hydrogen atom or a physiologically compatible metal, R.sub.3 being a --CH.sub.2 --CO--NH--R.sub.4 group in which R.sub.4 represensts an alkyl aryl or alkylaryl radical, which may or may not be substituted, or substituted or unsubstituted --CH.sub.2 --; Y denotes the group --SO.sub.2 --R.sub.2 or --R.sub.3 --SO.sub.2 --R.sub.2, R.sub.2 being the residue of an amino acid connected to the --SO.sub.2 bridge through its amine function and V denotes the group --CH.sub.2 --CO--NH--CHR--COOH, R being the side chain of an amino acid it being understood that: (a) if X is --SO.sub.3 R.sub.1 it is necessarily accompanied by Y and/or by V, and (b) V is always accompanied by X and/by Y.Type: GrantFiled: September 27, 1985Date of Patent: July 5, 1988Assignees: Jacqueline Jozefonvicz, Marcel Jozefonvicz, Christine FougnotInventors: Marcel Jozefonvicz, Jacqueline Jozefonvicz, Christine Fougnot, Monique Mauzac
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Patent number: 4754005Abstract: Coupling agents of general formula ##STR1## and their use in a method for the termination of living polymers obtained by the anionic polymerization of dienic and/or vinylaromatic monomers.Type: GrantFiled: June 20, 1986Date of Patent: June 28, 1988Assignee: Eniricerche S.p.A.Inventors: Arnaldo Roggero, Alberto Gandini
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Patent number: 4751281Abstract: Novel polymeric compounds of the repeating structural unit (I) ##STR1## in which R.sub.1 is hydrogen, 0.degree., CN, cyanomethyl, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.12 -alkenyl or C.sub.3 -C.sub.12 -alkynyl subject to the proviso that the carbon atom attached to the nitrogen atom is a primary carbon atom, C.sub.7 -C.sub.12 -aralkyl, C.sub.1 -C.sub.12 -acyl, 2,3-epoxypropyl or C.sub.2 -C.sub.6 -alkyl substituted by OH, R.sub.2 is C.sub.2 -C.sub.18 -alkylene, C.sub.4 -C.sub.18 -alkylene substituted by 1 or 2 oxygen or nitrogen atoms in the chain, C.sub.5 -C.sub.18 -cycloalkylene, C.sub.6 -C.sub.18 -arylene or C.sub.8 -C.sub.18 -aralkylene, R.sub.3 is as defined for R.sub.2 or is a group of the formula (II) or (III) ##STR2## in which R.sub.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl and R.sub.5 is C.sub.2 -C.sub.12 -alkylene, C.sub.4 -C.sub.12 -alkenylene subject to the proviso that the carbon atom attached to the nitrogen atom is a primary carbon atom, or is C.sub.8 -C.sub.Type: GrantFiled: February 18, 1987Date of Patent: June 14, 1988Assignee: Ciba-Geigy CorporationInventors: Giuseppe Cantatore, Valerio Borzatta
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Patent number: 4749505Abstract: Olefin polymers are degraded in molecular weight in the presence of a free radical initiator under an inert blanket. The degradation preferably is carried out under high shearing stress and/or a high temperature in order to increase the degradation. The degradation may be separate from, overlap, or occur simultaneously with further derivatization of the polymer.Type: GrantFiled: July 8, 1985Date of Patent: June 7, 1988Assignee: Exxon Chemical Patents Inc.Inventors: David Y. Chung, John E. Johnston
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Patent number: 4742122Abstract: Melt-processible tetrafluoroethylene/perfluoroolefin copolymer granules, and process for their preparation, are disclosed having improved thermal stability, high purity and reduced bubble tendency.Type: GrantFiled: February 17, 1987Date of Patent: May 3, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventors: Marlin D. Buckmaster, Richard A. Morgan
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Patent number: 4742126Abstract: Double bonds in saturated fluoroelastomers consisting of copolymers of vinylidene fluoride with hexafluoropropene and/or chlorotrifluoroethylene, and optionally tetrafluoroethylene, are obtained by reacting the polymer in a solution of a water-insoluble solvent in the presence of an aqueous phase, an inorganic base, and a phase-transfer catalyst.Type: GrantFiled: January 20, 1987Date of Patent: May 3, 1988Assignee: Ausimont S.p.A.Inventors: Giovanni Moggi, Piergiorgio Bonardelli, Graziella Chiodini, Stefano Conti
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Patent number: 4727111Abstract: A thermosetting powder coating composition which has good handling properties and which has a good blend of physical properties such as appearance, flexibility, hardness, solvent resistance, corrosion resistance and exterior durability is disclosed. The composition comprises a co-reactable particulate mixture of an acid group-containing acrylic polymer; an aliphatic dicarboxylic acid containing from 4 to 20 carbon atoms per molecule and/or a polymeric polyanhydride and a beta-hydroxyalkylamide crosslinking agent.Type: GrantFiled: September 29, 1986Date of Patent: February 23, 1988Assignee: PPG Industries, Inc.Inventors: Paul H. Pettit, Jr., Marvin L. Kaufman
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Patent number: 4711949Abstract: A fluorine-containing high polymer, e.g. polytetrafluoroethylene, can easily and efficiently be converted into a wax-like lower molecular weight polymer by contact reaction of the high polymer with a gas comprising a fluorinating agent, which is selected from molecular fluorine, nitrogen-fluorine compounds represented by NF.sub.3, halogen fluorides represented by ClF.sub.3 and fluorides of rare gas elements represented by XeF.sub.2, at a temperature in the range from 250.degree. to 550.degree. C.Type: GrantFiled: November 13, 1985Date of Patent: December 8, 1987Assignee: Central Glass Company LimitedInventors: Minoru Aramaki, Hiroaki Sakaguchi
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Patent number: 4699954Abstract: Chemical modification of crystalline poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne is disclosed. There is provided a chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 12 chlorine atoms per repeat unit. The chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by a Fourier transform infrared (FTIR) spectrum including peaks at about 745.+-.5, 798.+-.5, and 851.+-.5 cm.sup.-1. There is also provided a nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 2 nitro groups per repeat unit. The nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by an FTIR spectrum including absorption at about 1511.+-.5, 1342.+-.5, 794.+-.5, 751.+-.5, and 718.+-.5 cm.sup.-1.Type: GrantFiled: January 12, 1987Date of Patent: October 13, 1987Assignee: GTE Laboratories IncorporatedInventors: Daniel J. Sandman, Boris S. Elman, Christopher S. Velazquez
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Patent number: 4699952Abstract: Chemical modification of crystalline poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne is disclosed. There is provided a chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 12 chlorine atoms per repeat unit. The chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by a Fourier transform infrared (FTIR) spectrum including peaks at about 745.+-.5, 798.+-.5, and 851.+-.5 cm.sup.-1. There is also provided a nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 2 nitro groups per repeat unit. The nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by an FTIR spectrum including absorption at about 1511.+-.5, 1342.+-.5, 794.+-.5, 751.+-.5, and 718.+-.5 cm.sup.-1.Type: GrantFiled: January 12, 1987Date of Patent: October 13, 1987Assignee: GTE Laboratories IncorporatedInventors: Daniel J. Sandman, Boris S. Elman, Christopher S. Velazquez
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Patent number: 4689371Abstract: Polymers of 4-acetoxystyrene are hydrolyzed by methanolysis with quaternary ammonium hydroxides to poly-p-vinylphenol. Such polymers are useful in photoresists and in the manufacture of metal treatment compositions.Type: GrantFiled: July 7, 1986Date of Patent: August 25, 1987Assignee: Celanese CorporationInventors: Jimmy D. Elmore, Raphael J. Schweri
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Patent number: 4680360Abstract: Poly(allylamine salts) of high polymerization degree is obtained in high yield by the polymerization of monoallylamine salt with a specified radical-polymerization initiator having in the molecule an azo group. Various poly(allylamine) derivatives are obtained by reacting said poly(allylamine salt) with acrylic compounds, or formic acid and formaldehyde.Type: GrantFiled: November 13, 1984Date of Patent: July 14, 1987Assignee: Nitto Boseki Co., LtdInventors: Toshio Ueda, Yoshinori Sato, Susumu Harada
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Patent number: 4677153Abstract: A method for modifying a rubber having unsaturated bonds, characterized by reacting said rubber with (a) an organic compound (I) having a group represented by the formula --CH.dbd.N-- and (b) an organic acid halide (II) having a group represented by the formula --COX (X is a halogen atom), in the place of a Lewis acid.Type: GrantFiled: March 25, 1986Date of Patent: June 30, 1987Assignee: Nippon Zeon Co., Ltd.Inventors: Shizuo Kitahara, Yoshitsugu Hirokawa, Toshihiro Fujii
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Patent number: 4670520Abstract: According to the invention, a method for modifying a polyfumaric acid diester is provided. The method comprises subjecting the polyfumaric acid diester to thermal treatment to thereby obtain a polyfumarate having carboxyl groups. The polyfumaric acid diester is obtained by polymerizing a fumaric acid diester represented by the following general formula of: ##STR1## wherein R represents an alkyl group having 1 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms or an organic residue having at least one aromatic ring.Type: GrantFiled: January 28, 1986Date of Patent: June 2, 1987Assignee: Nippon Oil & Fat Co., Ltd.Inventors: Takayuki Otsu, Yoshishige Murata, Naoyuki Amaya
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Patent number: 4666978Abstract: Method of promoting the cure of unsaturated polyester resins with a peroxide initiator at room or below room temperatures (low temperatures) by including as a promoter N,N-dimethyl-p-toluidine (DMPT) or a blend of DMPT and N,N-dimethyl-m-toluidine (DMMT) and to the polyester composition containing such promoter. The use of the DMPT or blend of DMPT and DMMT as a promoter provides a fast cure at low temperatures without loss of physical properties of the cured resins.Type: GrantFiled: November 27, 1985Date of Patent: May 19, 1987Assignees: First Chemical Corporation, The University of Southern MississippiInventors: Robson F. Storey, Sudhakar Dantiki, Melissa L. Hogue, Arthur C. Bayer
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Patent number: 4661583Abstract: The process for preparing novel monomers and polymers by reaction of a bicyclic amide acetal with an imide compound at a temperature in the range of from about 0.degree. C. to 250.degree. C. is disclosed.Type: GrantFiled: June 24, 1985Date of Patent: April 28, 1987Assignee: Ashland Oil, Inc.Inventor: Anil B. Goel
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Patent number: 4654267Abstract: Magnetic polymer particles prepared by treating compact or porous polymer particles with a solution of iron salts and, if desired, salts of other metals which are capable of forming magnetic ferrites, in which the solution swells or penetrates into the particles. Iron hydroxide and other metal hydroxides, if employed, are precipitated, e.g. by raising the pH value, and the particles are optionally heated. In the iron salts used, the ratio between di- and trivalent iron is suitably such that magnetic iron oxide is formed directly. It is also possible to use oxidizing or reducing groups or additives to obtain such a ratio. When other metal salts are used in addition to iron salts, the operation is carried out in the same manner. For instance, when Mn.sup.++, Co.sup.++ or Ni.sup.++ salts are used in addition to Fe.sup.++ salts, the divalent iron is oxidized to trivalent so that magnetic ferrite is obtained. The polymer particles which are treated with metal salts preferably contain metal-binding groups.Type: GrantFiled: December 23, 1983Date of Patent: March 31, 1987Assignee: SINTEFInventors: John Ugelstad, Turid Ellingsen, Arvid Berge, Oskar B. Helgee
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Patent number: 4650828Abstract: A thermoplastic molding composition which comprises a blend of:(A) a copolymer having recurring units of a monoalkenyl aromatic monomer and recurring units of an .alpha.,.beta.-ethylenically unsaturated dicarboxylic anhydride N-substituted imide, and(B) a hydrogenated elastomeric block copolymer having at least one substantially completely hydrogenated diene polymer mid block and at least two monoalkenyl arene polymer end blocks in which at least a portion of the arene groups contained in the end blocks are substituted with at least one substituent selected from the group consisting of nitro, cyano and trifluoromethanesulfonyl.Type: GrantFiled: May 23, 1986Date of Patent: March 17, 1987Assignee: Atlantic Richfield CompanyInventor: Barry D. Dean
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Patent number: 4647625Abstract: A process for modifying a polymer of a conjugated diene, which comprises reacting a polymer of a conjugated diene containing at least one metal selected from alkali metals and alkaline earth metals with a compound having a linkage of the following formula ##STR1## wherein X represents an oxygen or sulfur atom, in the molecule.Type: GrantFiled: December 21, 1984Date of Patent: March 3, 1987Assignee: Nippon Zeon Co., Ltd.Inventors: Mitsuyoshi Aonuma, Hiroyuki Watanabe, Haruki Kawada, Kohkichi Noguchi, Akio Ueda, Shuichi Akita, Tetsuo Ohyama, Toshio Kase
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Patent number: 4644036Abstract: Michael addition products of monocarboxylic or dicarboxylic acid esters, capable of undergoing Michael addition, with compounds containing double bonds capable of undergoing Michael addition are suitable for use as a curing component for synthetic resins containing groups capable of amide formation and/or ester formation with carboxylic acids. In particular, the Michael addition products of acetoacetic esters or malonic esters with esters, amides or urea derivatives of .alpha., .beta.-unsaturated monocarboxylic or dicarboxylic acids are used. The structure and the functionality of the curing component can be varied in many ways. It can be attached directly to the synthetic resin molecule, so that self-curing synthetic resins are obtained.Type: GrantFiled: April 26, 1984Date of Patent: February 17, 1987Assignee: Hoechst AktiengesellschaftInventors: Gerd Walz, Ernst-August Theiling
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Patent number: 4622356Abstract: The use of a cyclic compound containing a ##STR1## group, i.e., methone, has been found to allow a poor acrylamide or acrylic acid or 2-acrylamide-2-methylpropane sulfonic acid and its salts monomer to be polymerized to a polymer having improved performance characteristics and/or improved rates of polymerization. Optionally, urea is added with the methone.Type: GrantFiled: July 10, 1985Date of Patent: November 11, 1986Assignee: American Cyanamid CompanyInventors: Peter A. Jarovitzky, Roger E. Neff
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Patent number: 4614771Abstract: A process for making a diene copolymer rubber having improved rebound, which comprises polymerizing a conjugated diene monomer with an aromatic vinyl monomer in a hydrocarbon solvent in the presence of an alkali metal and/or alkaline earth metal initiator, to form a dienyl-metal terminated, conjugated diene-aromatic vinyl copolymer rubber, and thereafter reacting the copolymer rubber with at least one reactant selected from the group consisting of aminoaldehydes, aminoketones, aminothioaldehydes and aminothioketones.Type: GrantFiled: October 22, 1985Date of Patent: September 30, 1986Assignee: Nippon Zeon Co., Ltd.Inventors: Hiroyuki Watanabe, Kohkichi Noguchi, Toshio Kase, Shuichi Akita
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Patent number: 4609703Abstract: Novel copolymers of acrylic acid and cyanoethylacrylate, and the use of such copolymers as primers for bonding metal-containing coatings to organic polymer substrates, are disclosed. The copolymers of the present invention may be linear or crosslinked, may further comprise hydroxyethylacrylate, and are preferably of low molecular weight when used in solution as a primer.Type: GrantFiled: June 5, 1985Date of Patent: September 2, 1986Assignee: PPG Industries, Inc.Inventor: Thomas G. Rukavina
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Patent number: 4605701Abstract: A small-globular crosslinked polymer of monoallylamine swellable but insoluble in water can be obtained by crosslinking a part of the amino groups of a monoallylamine polymer with formaldehyde or a compound having, in its molecule, at least two functional groups reactive with primary amino group.Type: GrantFiled: October 19, 1984Date of Patent: August 12, 1986Assignee: Nitto Boseki Co., Ltd.Inventors: Susumu Harada, Sakuro Hasegawa, Koichi Sato
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Patent number: 4588783Abstract: There is disclosed herein an amide-containing hydroxyethyl carbamate and a coating composition comprising same. The preparation thereof entails the reaction of an amidoamine and a cyclic organic carbonate.Type: GrantFiled: December 16, 1983Date of Patent: May 13, 1986Assignee: PPG Industries, Inc.Inventor: Wen-Hsuan Chang
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Patent number: 4587308Abstract: A method for easily, inexpensively and efficiently producing an improved water-absorbent resin having a high water absorbency and a high water absorption rate and capable of forming a gel having a high gel strength and nonstickiness, in which water-absorbent resin particles which contain water and a crosslinking agent and are in the semi-swollen state are agitated at an elevated temperature in the presence of an inert inorganic powder to conduct the crosslinking of the resin, while removing water, the water-absorbent resin containing a monomer units having a carboxyl group in the form of free acid or a metal salt.Type: GrantFiled: February 4, 1985Date of Patent: May 6, 1986Assignee: Arakawa Kagaku Kogyo Kabushiki KaishaInventors: Muneharu Makita, Shozo Tanioku
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Patent number: 4585855Abstract: A process for producing a curable resin liquid comprising: (a) at least one cyanate ester compound and (b) at least one polyfunctional maleimide compound, characterized in that the process comprises:(A) reacting at least one said maleimide compound with said diamine in the presence of a diluent at a temperature of 60.degree.-200.degree. C., the ratio of the maleimide group to the amine group being in the range of from 1:0.0015 to 1:0.3 to form a preliminary reaction product substantially free from amine group; and(B) mixing said preliminary reaction product with at least one cyanate ester compound ratio by weight of said preliminary reaction product to said cyanate ester compound is disclosed.Type: GrantFiled: February 28, 1985Date of Patent: April 29, 1986Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Morio Gaku, Hidenori Kimbara, Mitsuo Ejiri
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Patent number: 4574140Abstract: The green strength of synthetic elastomers is improved by forming copolymers from at least one type of various synthetic elastomer forming monomers with a hydroxyl containing monomer having the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are either hydrogen or a methyl group and R.sub.4 is an alkyl group having 1-10 carbon atoms and A is a methylene or carbonyl group. The green strength is further improved if a small amount of a hydroxyl ester cross-linking agent is utilized.Type: GrantFiled: June 27, 1983Date of Patent: March 4, 1986Assignee: The Goodyear Tire & Rubber CompanyInventors: Paul H. Sandstrom, Emil M. Friedman
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Patent number: 4563431Abstract: A biologically active latex conjugate prepared by the acidification of latex particles of a core/shell polymer having acetal groups in the shell, whereby said acetal groups are converted to aldehyde groups, and then bonding a biologically active substance having an amino group to said aldehyde groups by reductive amination.Type: GrantFiled: March 26, 1984Date of Patent: January 7, 1986Assignee: Hoechst AktiengesellschaftInventors: Hans-Erwin Pauly, Wolfgang Kapmeyer, Ulrich Seitz
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Patent number: 4560728Abstract: A coating composition adapted to adhere to a chrome surface is disclosed in which a solvent soluble hydroxy-functional acrylic copolymer, including a copolymerized tertiary amine monomer in an amount of from 5% to 40% of the weight of the copolymer, is combined with an organic polyisocyanate curing agent for the soluble copolymer, this composition containing the copolymer and the polyisocyanate curing agent in amounts to provide an equivalent ratio of NCO:OH of from 1.2:1 to 0.5:1. The two components are provided as a two package system which is mixed prior to application.Type: GrantFiled: September 30, 1983Date of Patent: December 24, 1985Assignee: DeSoto, Inc.Inventors: Ronald J. Lewarchik, Jeffrey W. Thompson
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Patent number: 4558102Abstract: A curable rubber composition composed of a halogen-containing rubber and at least one member selected from the group consisting of a vulcanizing agent and a vulcanization accelerator other than thiazole-type vulcanization accelerators is cured under heat in the presence of, as an acid acceptor, a calcinated product of a hydrotalcite compound of the following formulaM.sub.x.sup.2+ Al.sub.2 (OH).sub.2x+6-nz (A.sup.n-).sub.z.mH.sub.2 O (1)wherein M.sup.2+ represents at least one metal element selected from the group consisting of Mg and Zn, A.sup.n- represents an anion having a valence of n, m represents a positive number, and x and z represent positive numbers satisfying the following expressions12>x.gtoreq.2,z.ltoreq.2.The cured product has improved water resistance.Type: GrantFiled: August 1, 1984Date of Patent: December 10, 1985Assignee: Kyowa Chemical Industry Co., Ltd.Inventor: Shigeo Miyata
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Patent number: 4555566Abstract: A new copolymer polyamide resin having very low water absorption which comprises copolymerized therein 99 to 5 parts by weight of polyamide polymeric component having at least one kind of repeating unit represented by the formula (1) or (2) below and 1 to 95 parts by weight of polyolefin component having an average molecular weight of 500 to 10,000, both terminals of said polyolefin being carboxylic acid groups, amino groups, or hydroxyl groups.--NH(CH.sub.2).sub.n CO-- (1)(where n is an integer from 5 to 11.)--NHXNHCOYCO-- (2)(where X is C.sub.m H.sub.2m (m is an integer from 6 to 12), isophorone group, phenylene group, or cyclohexylene group; and Y is C.sub.1 H.sub.2l (l is an integer from 4 to 10), phenylene group, or cyclohexylene group.) The resin can be used to make moldings, adhesives and coatings.Type: GrantFiled: September 14, 1984Date of Patent: November 26, 1985Assignee: Daicel Chemical Industries, Co., Ltd.Inventors: Koichiro Arita, Hajime Suzuki
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Patent number: 4548847Abstract: The invention comprises of an anionic polyelectrolyte hydrogel reversibly cross-linked with a polyvalent metal cation having a valence of at least two. This hydrogel may be combined with a removal agent for imparting delayed swelling characteristics when contacted with a water-containing fluid. The delayed swelling allows the water-containing fluid to penetrate or permeate the system before swelling is initiated, thereby providing enhanced wetting prior to the onset of swelling and alleviating gel blockage.Type: GrantFiled: January 9, 1984Date of Patent: October 22, 1985Assignee: Kimberly-Clark CorporationInventors: Gerard M. Aberson, Gerard J. F. Ring
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Patent number: 4544704Abstract: New compositions of matter are disclosed which comprise (1) a copolymer of an ethylenically unsaturated aromatic cyanate and a polymerizable ethylenically unsaturated compound which is free of cyanate groups or mixture thereof, (2) optionally a polycyanate or mixture thereof and/or (3) an epoxy resin.Type: GrantFiled: February 10, 1984Date of Patent: October 1, 1985Assignee: The Dow Chemical CompanyInventor: Robert E. Hefner, Jr.
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Patent number: 4536296Abstract: The invention is clay based water drilling or completion muds with low viscosity and exceptional stability at elevated temperatures of up to 200.degree. C. The muds are characterized by containing from 1 to 10 grams per liter of a low molecular weight polymer or copolymer having functional groups wherein from 2 to 95% of the functional groups consist independently of hydroxamic or thiohydroxamic groups. The mud composition comprises (a) fresh water, water containing electrolytes such as sodium chloride, potassium chloride, calcium chloride, magnesium chloride, or seawater; (b) clay, chosen to suit the saline concentration of the water and to provide the necessary properties; and (c) one or more viscosity increasing materials.Type: GrantFiled: March 10, 1983Date of Patent: August 20, 1985Assignee: Societe Nationale Elf AquitaineInventor: Lino Vio
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Patent number: 4529538Abstract: A conductive polymer composite system is made by dissolving an electron dting polymer and a simple or complex N-methylphenazinium TCNQ salt in a mutual solvent and casting a film of the resulting solution on a suitable substrate.Type: GrantFiled: August 9, 1983Date of Patent: July 16, 1985Assignee: The United States of America as represented by the Secretary of the NavyInventor: Oh-Kim Kim
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Patent number: 4517104Abstract: Oil soluble viscosity index improving ethylene copolymers, such as copolymers of ethylene and propylene; and ethylene, propylene and diolefin; etc., are reacted or grafted with ethylenically unsaturated carboxylic acid moieties, preferably maleic anhydride moieties, and reacted with polyamines having two or more primary amine groups and a carboxylic acid component, preferably alkylene polyamine and alkenyl succinic anhydride such as polyisobutenyl succinic anhydride. Or the grafted ethylene copolymer can be reacted with already formed salts, amides, imides, etc. of said polyamine and acid component, preferably imides of alkylene polyamine and alkenyl succinic anhydride. These reactions can permit the incorporation of varnish inhibition and dispersancy into the ethylene copolymer while inhibiting cross-linking with resulting viscosity increase, haze or gelling.Type: GrantFiled: May 6, 1981Date of Patent: May 14, 1985Assignee: Exxon Research & Engineering Co.Inventors: Ricardo Bloch, Thomas J. McCrary, Jr., Darrell W. Brownawell
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Patent number: 4507440Abstract: The present invention relates to macromolecular compositions crosslinked by a novel bridge having the formula --NR.sup.x --CH.dbd.N--CO--. This novel bridge is obtained by reacting a macro-molecule, preferably a polymer, having at least two amidocarbonyl groups with a compound having at least two formylamido groups in an aqueous medium under highly acidic conditions. The crosslinking bridge formed by the reaction of this invention is produced in accord with the following formula: ##STR1## Compositions containing macromolecules having at least two amidocarbonyl groups and a compound having at least two formylamido groups can act as viscosifying or gelling agents for aqueous acids where when added to aqueous acids, crosslinking occurs. Acids gelled in this manner have important use in the recovery of oil and natural gas from subterranean formations.Type: GrantFiled: July 19, 1982Date of Patent: March 26, 1985Assignees: Cassella Aktiengesellschaft, Dresser Industries, Inc.Inventors: Friedrich Engelhardt, Steffen Piesch, Juliane Balzer, Jeffery C. Dawson
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Patent number: 4504628Abstract: An addition polymerizable UV stabilizer is prepared by reacting an isocyanatoalkyl ester of an addition polymerizable carboxylic acid (such as 2-isocyanatoethyl methacrylate) with an UV stabilization functionality bearing an active hydrogen moiety which is reactive with the isocyanate (such as 2-hydroxy-4-(2-hydroxyethoxy)benzophenone).Type: GrantFiled: April 14, 1983Date of Patent: March 12, 1985Assignee: The Dow Chemical CompanyInventor: Mark R. Johnson
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Patent number: 4499232Abstract: The present invention relates to macromolecular compositions crosslinked by a novel bridge having the formula --NR.sup.x --CH.dbd.N--CO--. This novel bridge is obtained by reacting a macro-molecule, preferably a polymer, having at least two amidocarbonyl groups with a compound having at least two formylamido groups in an aqueous medium under highly acidic conditions. The crosslinking bridge formed by the reaction of this invention is produced in accord with the following formula: ##STR1## Compositions containing macromolecules having at least two amidocarbonyl groups and a compound having at least two formylamido groups can act as viscosifying or gelling agents for aqueous acids where when added to aqueous acids, crosslinking occurs. Acids gelled in this manner have important use in the recovery of oil and natural gas from subterranean formations.Type: GrantFiled: September 24, 1982Date of Patent: February 12, 1985Assignees: Cassella Aktiengesellschaft, Dresser Industries, Inc.Inventors: Friedrich Engelhardt, Steffen Piesch, Juliane Balzar, Jeffery C. Dawson
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Patent number: 4489197Abstract: Polymeric compounds which have recurring ##STR1## units, wherein X is N or O, R.sub.1, R.sub.2 and R.sub.3 are hydrogens or lower alkyls and R.sub.4 is ##STR2## and aromatic amine or an aromatic hydrazine which provides X as N. These polymers provide active methylene groups which serve as points of attachment for organic groups-particularly azo functionality-containing groups. These azo links can be cleaved by bacteria in the mammalian lower bowel, thereby releasing the corresponding amino groups. This mechanism can effect programmed delivery of pharmaceutically desirable species to the lower bowel.Type: GrantFiled: February 17, 1984Date of Patent: December 18, 1984Assignee: DynapolInventors: Patricia C. Wang, Daniel J. Dawson
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Patent number: 4477629Abstract: New compositions of matter are disclosed which comprise (1) a cyanate-containing polymer or mixture thereof and optionally (2) a polycyanate or mixture thereof and/or (3) an epoxy resin. These compositions are thermosettable upon heating in the presence of suitable curing agents or catalysts.Type: GrantFiled: July 27, 1983Date of Patent: October 16, 1984Assignee: The Dow Chemical CompanyInventor: Robert E. Hefner, Jr.
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Patent number: RE32533Abstract: Carburetor detergency properties of hydrocarbon fuels are provided by nitrogen-containing organic compound-grafted, hydrogenated conjugated diene-monovinylarene copolymers.Type: GrantFiled: July 6, 1982Date of Patent: October 27, 1987Assignee: Phillips Petroleum CompanyInventors: William J. Trepka, Richard J. Sonnenfeld