Ethylenically Unsaturated Reactant Patents (Class 528/205)
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Patent number: 4471106Abstract: Phenolic-modified hydrocarbon polymers with a high OH-number yet with excellent compatibility with non-polar solvents are suitable for preparing adhesives and coating materials. The polymers are obtained by isothermal, catalytic copolymerization of:30-40% by weight phenolic compounds,65-30% by weight aromatic, unsaturated hydrocarbons, and5-30% by weight isobutene.Type: GrantFiled: November 4, 1983Date of Patent: September 11, 1984Assignee: Rutgerswerke AktiengesellschaftInventors: Wolfgang Luecke, Herbert Beneke, Peter Staeglich, Manfred Muehlenkamp
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Patent number: 4463169Abstract: Polymerizable compositions comprise(a) a compound containing(i) at least one acryloyloxy or methacryloyloxy group,(ii) at least one allyl, methallyl, or 1-propenyl group attached, either directly, or through an oxygen atom or an oxycarbonyl group, to a carbon atom which forms part of an aromatic or cycloaliphatic nucleus,(b) a compound containing in the molecule both(iii) at least one acryloyloxy or methacryloyloxy group and(iv) at least one --COOH group, and(c) a compound containing at least two mercaptan groups directly attached to aliphatic carbon atoms.Examples of (a) are 2,2-bis(3-allyl-4-(3-(methacryloyloxy)-2-(2-carboxyethylcarbonyloxy)propox y)phenyl)propane, 1-(allyloxycarbonyl)-2,4-bis(3-(methacryloyloxy)-2-(2-carboxyethylcarbonyl oxy)propoxycarbonyl)benzene, and diallyl bis(3-methacryloyloxy)-2-(2-carboxyethylcarbonyloxy)propyl) esters of benzophenone-3,4,3',4'-tetracarboxylic acid. Examples of (b) are acrylic acid and 2-(methacryloyloxy)ethyl 5-carboxycyclohex-1-ene-4-carboxylate.Type: GrantFiled: September 13, 1982Date of Patent: July 31, 1984Assignee: Ciba-Geigy CorporationInventor: Edward Irving
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Patent number: 4461886Abstract: A class of polyamides comprising recurring units having certain substituted-biphenylene or substituted-stilbene radicals is disclosed. The substituted radicals include substituents so as to confer a non-coplanar molecular configuration and a substantially cylindrical distribution of electron density about the long axis of the recurring units and the chain-extended polymers including such radicals.Molecularly oriented polymers of the invention exhibit optically uniaxial properties. The highly birefringent polymers are suited to application in optical filter and other devices where a refractive and birefringent material is desired.Type: GrantFiled: April 20, 1983Date of Patent: July 24, 1984Assignee: Polaroid CorporationInventors: Howard G. Rogers, Russell A. Gaudiana, Jeannette S. Manello, Ronald A. Sahatjian
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Patent number: 4461888Abstract: A class of polyamides comprising recurring units having certain substituted-biphenylene or substituted-stilbene radicals is disclosed. The substituted radicals include substituents so as to confer a non-coplanar molecular configuration and a substantially cylindrical distribution of electron density about the long axis of the recurring units and the chain-extended polymers including such radicals.Molecularly oriented polymers of the invention exhibit optically uniaxial properties. The highly berefringent polymers are suited to applicaiton in optical filter and other devices where a refractive and birefringent material is desired.Type: GrantFiled: April 20, 1983Date of Patent: July 24, 1984Assignee: Polaroid CorporationInventors: Howard G. Rogers, Russell A. Gaudiana, Jeannette S. Manello, Ronald A. Sahatjian
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Patent number: 4460753Abstract: A process for producing a vinyl chloride polymer which comprises polymerizing vinyl chloride monomer or a mixture of it with another monomer copolymerizable therewith in an aqueous medium or in bulk, characterized in that the inside of the polymerization reactor is coated beforehand with the product of reaction of an oily or waxy cyclopentadiene polymer and a phenolic compound with or without an aldehyde compound.Type: GrantFiled: September 28, 1982Date of Patent: July 17, 1984Assignee: Nippon Zeon Co. Ltd.Inventors: Makoto Yamamoto, Akira Nakayama, Riso Iwata
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Patent number: 4451638Abstract: Alkali metal polyester silicate resinous products are produced by mixing a polyhydroxy organic compound, an alkali metal silicate and a polycarboxylic acid, then heating the mixture to a temperature between the melting point of the polycarboxylic acid and the boiling temperature of the polyol while agitating until the reaction is complete.Type: GrantFiled: February 19, 1980Date of Patent: May 29, 1984Inventor: David H. Blount
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Patent number: 4439291Abstract: Polymerizable compositions comprise(a) a compound containing both(i) at least one acryloyloxy or methacryloyloxy group,(ii) at least one allyl, methallyl, or 1-propenyl group attached directly to a carbon atom which forms part of an aromatic nucleus or to an oxygen atom or an oxycarbonyl group which are in turn directly attached to such a carbon atom,the total of the said groups (i) and (ii) being at least three, and(b) a compound containing at least two mercaptan groups directly attached to aliphatic carbon atoms, in a proportion as to supply at least 0.8 such mercaptan group per allyl, methallyl or 1-propenyl group in (a) but less than 1.0 such mercaptan group in (a) per acryloyl, methacryloyl, allyl, methallyl, or 1-propenyl group.Type: GrantFiled: July 22, 1982Date of Patent: March 27, 1984Assignee: Ciba-Geigy CorporationInventors: Edward Irving, George E. Green
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Patent number: 4403088Abstract: This invention relates to a plastic resin composition and the process for making it. This invention discloses a plastic resin comprised of repeat units derived from (1) at least one member selected from the group consisting of meta-diisopropenylbenzene and para-diisopropenylbenzene and (2) at least one member selected from the group consisting of (a) meta-dialkoxybenzene, wherein said alkoxy moieties contain from 1 to 10 carbon atoms, (b) phenol and (c) 1-mercapto-3-alkoxybenzene, wherein said alkoxy moieties contain from 1 to 10 carbon atoms, (d) diaralkoxybenzene, wherein said aralkoxy moieties contain from 7 to 12 carbon atoms and (e) 1,2,3-trialkoxybenzene, wherein said alkoxy moieties contain from 1 to 10 carbon atoms.Type: GrantFiled: August 5, 1982Date of Patent: September 6, 1983Assignee: The Goodyear Tire & Rubber CompanyInventors: Robert A. Smith, Dennis B. Patterson
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Patent number: 4400500Abstract: This invention relates to polyaminoester thermosetting resins prepared by reacting polyalkylene maleate oligomers with polyfunctional amines via a Michael type addition reaction. The reaction is preferably conducted by a RIM process. Alpha, beta ethylenically unsaturated monomers, which are slow to react with amines, may be added to the reaction to copolymerize with the maleate functionality in a post cure step. The polyaminoester thermosetting resins are useful as plastics, coatings, resin modifiers, and elastomers.Type: GrantFiled: April 30, 1982Date of Patent: August 23, 1983Assignee: Rohm and Haas CompanyInventors: Everett J. Kelley, Casmir S. Ilenda
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Patent number: 4396760Abstract: A thermosettable polyaminoester composition useful as a plastic, coating, resin modifier, and elastomer is provided. The thermosettable polyaminoester is formed by reacting one or more acrylic or methacrylic terminated polyalkylene maleate or fumarate oligomers with one or more polyamines and optionally with one or more alpha, beta-ethylenically unsaturated monomers. The composition is especially useful in the RIM process.Type: GrantFiled: April 30, 1982Date of Patent: August 2, 1983Assignee: Rohm and Haas CompanyInventor: Everett J. Kelley
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Patent number: 4393194Abstract: A class of polyamides comprising recurring units having substituted-quaterphenylene radicals is disclosed. The polymers comprise recurring units of the formula ##STR1## wherein each of A and B is a divalent radical, except that B can represent a single bond; R and R.sup.1 are each hydrogen, alkyl, aryl, alkaryl or aralkyl; and c is zero or one; and wherein, when c is one, at least one of A and B is a substituted-quaterphenylene radical having the formula ##STR2## where each U is a substituent other than hydrogen, each W is hydrogen or a substituent other than hydrogen, each p is an integer from 1 to 3, each X is hydrogen or a substituent other than hydrogen and each r is an integer from 1 to 4, the U, W.sub.p and X.sub.r substitution being sufficient to provide the radical with a non-coplanar molecular configuration; and wherein, when c is zero, A is a substituted-quaterphenylene radical as aforedescribed.Type: GrantFiled: March 2, 1981Date of Patent: July 12, 1983Assignee: Polaroid CorporationInventors: Russell A. Gaudiana, Palaiyur S. Kalyanaraman
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Patent number: 4384107Abstract: A class of polyamides comprising recurring units having certain substituted-biphenylene or substituted-stilbene radicals is disclosed. The substituted radicals include substituents so as to confer a non-coplanar molecular configuration and a substantially cylindrical distribution of electron density about the long axis of the recurring units and the chain-extended polymers including such radicals.Molecularly oriented polymers of the invention exhibit optically uniaxial properties. The highly birefringent polymers are suited to application in optical filter and other devices where a refractive and birefringent material is desired.Type: GrantFiled: March 2, 1981Date of Patent: May 17, 1983Assignee: Polaroid CorporationInventors: Howard G. Rogers, Russell A. Gaudiana, Jeannette S. Manello, Ronald A. Sahatjian
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Patent number: 4380619Abstract: Oxy- and thio-aryl-phenylated aromatic heterocyclic polymers having the general formula ##STR1## wherein Ar is a monovalent aromatic radical containing an oxy- or thio-linkage, Ar' is a divalent aromatic radical, R is a monovalent aromatic radical, Z is a divalent heterocyclic radical and n is an integer equal to the number of repeating units, are prepared from biscyclopentadienones with diethynyl heterocyclic compounds.Type: GrantFiled: April 8, 1982Date of Patent: April 19, 1983Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Bruce A. Reinhardt, Fred E. Arnold
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Patent number: 4374974Abstract: There are provided linear aromatic polyformal compositions and cyclic polyformals. A method is also provided for making linear aromatic polyformals having reduced aromatic cyclic polyformal content to provide transparent films having improved Notched Izod Impact. The cyclic aromatic polyformals can be used as intermediates for making solvent resistant organic wire coating formulations.Type: GrantFiled: November 6, 1978Date of Patent: February 22, 1983Assignee: General Electric CompanyInventor: Allan S. Hay
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Patent number: 4369206Abstract: This invention relates to new ammonium salts of .alpha.-ketocarboxylic acids, to their use for the production of amines in situ by photochemical decomposition and to photochemically hardenable coating compositions containing these ammonium salts.Type: GrantFiled: July 2, 1979Date of Patent: January 18, 1983Assignee: Bayer AktiengesellschaftInventors: Wofram Mayer, Hans Rudolph, Eckhard de Cleur, Manfred Schonfelder
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Patent number: 4360628Abstract: Solid copolymer tackifying resins based on dicyclopentadiene, a vinylaromatic hydrocarbon and a benzene carrying 1 to 3 lower alkyl, hydroxyl or halogen substituents and adhesive formulations containing these resins.Type: GrantFiled: January 19, 1981Date of Patent: November 23, 1982Assignee: National Starch and Chemical CorporationInventors: Yves Runavot, Georges Billault, Jacques Salvetat
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Patent number: 4357459Abstract: Resins suitable for adhesives are based on .alpha.-methyl styrene, styrene and phenol in certain percentages, viz. 25 to 63, 35 to 73 and 2 to 15 percent by weight, respectively,Combinations of resin, ethylene vinyl acetate copolymer or thermoelastomer and optionally a wax or tackifying oil yield excellent adhesives, in particular hot-melt adhesives.Type: GrantFiled: August 25, 1980Date of Patent: November 2, 1982Assignee: National Starch and Chemical CorporationInventors: Yves Runavot, Georges Billault, Jacques Salvetat
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Patent number: 4337110Abstract: The applicants have provided laminates prepared by (a) impregnating a glass fabric with an N-methyl-2-pyrrolidone solution of a compound having the structure of Formula A shown in FIG. 1 of the drawings, (b) heating the impregnated glass fabric to remove solvent therefrom and to covert the amic acid groups to imide groups, and (c) assembling a plurality of the impregnated glass fabrics from (b) and heating the assembly under pressure to a temperature in the range of 177.degree.-260.degree. C.Type: GrantFiled: April 27, 1978Date of Patent: June 29, 1982Assignee: Gulf Oil CorporationInventors: Patricia A. Antonoplos, William J. Heilman
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Patent number: 4308367Abstract: Polymerizable compositions comprise(a) a compound containing in the same molecule both at least one phenolic hydroxyl group and at least two groups chosen from allyl, methallyl, and 1-propenyl groups, e.g., 2,2-bis(3-allyl-4-hydroxyphenyl)propane or bis(3-(1-propenyl)-4-hydroxyphenyl)methane,(b) a compound containing at least two mercaptan groups per molecule, e.g., pentaerythritol tetrathioglycollate, and(c) a heat-activated crosslinking agent for phenol-aldehyde novolac resins.The compositions are caused to polymerize by the action of irradiation of free-radical catalysts. The polymers so obtained, containing more than one phenolic hydroxyl group, can be subsequently crosslinked in situ by heating. The compositions are useful in various two-stage operations, such as the production of multilayer printed circuits.Polymerizable compositions may also comprise(d) a compound as (a) but containing at least two phenolic hydroxyl groups,(e) a compound containing more than two mercaptan groups per molecule.Type: GrantFiled: January 19, 1979Date of Patent: December 29, 1981Assignee: Ciba-Geigy CorporationInventors: George E. Green, Abdul-Cader Zahir
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Patent number: 4307012Abstract: Compositions of oxidizable organic materials having stabilizing amounts of polymeric alkylbenzenoid hydroquinoid antioxidants of from about 500 to about 50,000 molecular weight, and polymers which are the reaction products of a hydroquinone compound and a polymeric monohydroxy alkylbenzenoid compound.Type: GrantFiled: December 17, 1979Date of Patent: December 22, 1981Assignee: Standard Oil CompanyInventor: Carl Serres, Jr.
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Patent number: 4307223Abstract: A solid resinous product useful for coatings, adhesives and molding materials which is obtained by polymerizing a by-product tar produced as by-product in manufacturing resorcinol or resorcinol and hydroquinone via hydroperoxide of m-diisopropylbenzene or of a combination of m- and p-diisorpopylbenzenes and containing m-substituted phenolic constituents or a combination of m- and p-substituted phenolic constituents as major constituents.Type: GrantFiled: June 5, 1979Date of Patent: December 22, 1981Assignee: Sumitomo Chemical Company, LimitedInventors: Akira Shintani, Katsuo Akagane, Yasuhisa Saito, Takashi Urata, deceased
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Patent number: 4301186Abstract: This invention relates to new ammonium salts of .alpha.-ketocarboxylic acids, to their use for the production of amines in situ by photochemical decomposition and to photochemically hardenable coating compositions containing these ammonium salts.Type: GrantFiled: June 28, 1979Date of Patent: November 17, 1981Assignee: Bayer AktiengesellschaftInventors: Wolfram Mayer, Hans Rudolph, Eckhard De Cleur, Manfred Schonfelder
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Patent number: 4298519Abstract: A thermocurable composition based on an ethylenically unsaturated ester such as 2,2-bis-(p-.beta.-hydroxyethoxy)phenyl propane dimethacrylate and containing 2 to 60% by weight (calculated on the ethylenically unsaturated ester) of a chlorine-containing paraffin having an average molecular weight of 250 to 900 and an average chlorine content of 35 to 75% by weight.Type: GrantFiled: May 30, 1978Date of Patent: November 3, 1981Assignee: Akzo N.V.Inventors: Johan H. Cordes, Wilhelmus F. M. Roes
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Patent number: 4288583Abstract: Curable mixtures of(a) maleimides of the general formula I ##STR1## wherein R is an n-valent aliphatic or aromatic radical, and n is the number 1,2 or 3; and(b) mono- or polyvalent phenols which contain in the molecule at least one 1-propenyl group in the ortho- or para-position with respect to the hydroxyl group, or isomeric mixtures of mono- or polyvalent phenols which are propenyl-substituted in the ortho- or para-position and mono- or polyvalent phenols which are allyl-substituted in the ortho- or para-position, the proportion of propenyl groups in the isomeric mixture having to be at least 5 equivalent-%, relative to the sum of the equivalents of propenyl and allyl groups.The novel mixtures cure at elevated temperatures relatively rapidly, and produce moulded materials having valuable mechanical properties.Type: GrantFiled: December 17, 1979Date of Patent: September 8, 1981Assignee: Ciba-Geigy CorporationInventors: Abdul-Cader Zahir, Siegfried Wyler
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Patent number: 4287321Abstract: Polyphenylene ether-poly(vinyl aromatic) compositions are prepared by oxidatively coupling a phenol dissolved in a basic reaction medium comprising a vinyl aromatic compound in the presence of a manganese chelate catalyst, selectively liquid-liquid extracting base-reactive by-products, then thermally polymerizing the vinyl aromatic compound.Type: GrantFiled: December 10, 1979Date of Patent: September 1, 1981Assignee: General Electric CompanyInventor: Walter K. Olander
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Patent number: 4275185Abstract: Polyimide polymers of improved physical properties and thermal stability may be prepared by reacting an N,N'-bismaleimide with an activated methylene compound in a nonreactive organic solvent system. The polymers are useful in producing films, moldings, and laminates or other composites.Type: GrantFiled: September 24, 1979Date of Patent: June 23, 1981Assignee: ICI Americas Inc.Inventor: Robert T. Lu
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Patent number: 4260733Abstract: A method is provided for making linear film forming aromatic polyformals having a reduced percent by weight of aromatic polyformals in the cyclic state. Reduced cyclic polyformal content in the linear aromatic polyformal is achieved by a filtration of the reaction product of a bisphenol and methylene halide in the presence of an alkali metal hydroxide, followed by the addition of an antisolvent to the reaction mixture to effect reverse precipitation.Type: GrantFiled: March 23, 1978Date of Patent: April 7, 1981Assignee: General Electric CompanyInventors: George R. Loucks, Frank J. Williams, III
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Patent number: 4259395Abstract: Process for the preparation of a resin composition which comprises reacting a polybutadiene having a number average molecular weight of 150 to 10,000 and 1,4-structure of at least 80% by weight with a phenol in the presence of an acid catalyst to obtain a composition which consists of a polybutadiene-phenol adduct and unreacted phenol, in said polybutadiene-phenol adduct, one molecule of phenol per 3 to 8 butadiene units being added to the polybutadiene, and reacting the polybutadiene-phenol adduct composition with a formaldehyde in the presence of a basic catalyst. Said resin composition thus prepared is useful for the preparation of a laminated sheet having excellent curing characteristics, particularly excellent electrical characteristics, punchability and flexibility.Type: GrantFiled: June 12, 1979Date of Patent: March 31, 1981Assignee: Sumitomo Chemical Company, LimitedInventors: Seimei Yasui, Yoshinobu Matsuda, Masakazu Sagou, Takanobu Noguchi
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Patent number: 4258175Abstract: There is provided a process for preparing a compound of the formula ##STR1## wherein X.sup.1, X.sup.2, X.sup.3, and X.sup.4 are independently selected from the group consisting of fluorine, chlorine, bromine and iodine; n is an integer of from 1 to about 100; a, b, c, and d are each integers of from about 0 to about 4; Z.sup.1 and Z.sup.2 are independently selected from the group consisting of halogen and alkyl of from about 1 to about 15 carbon atoms; R.sup.1 and R.sup.2 are independently selected from the group consisting of alkylene containing from about 1 to about 12 carbon atoms, alkylenyl containing from about 2 to about 12 carbon atoms, cycloalkylene of the formula ##STR2## wherein R.sup.3, R.sup.4 and R.sup.5 are independently selected from the group consisting of alkylene of from about 1 to about 5 carbon atoms, and cycloalkylenyl of the formula ##STR3## and A is selected from the group consisting of R.sup.3 CR.sup.Type: GrantFiled: July 6, 1979Date of Patent: March 24, 1981Assignee: Velsicol Chemical CorporationInventor: Sun-Mao Chen
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Patent number: 4254252Abstract: Cyclic polyformals of 2,2'-bis(4-hydroxyphenyl)-1,1-dichloroethylene are provided and method for making such materials. The cyclic polyformals are useful as flame retardants, plasticizers and for making wire coated formulations in a variety of organic polymers, such as polycarbonates, polyesters, etc.Type: GrantFiled: May 15, 1978Date of Patent: March 3, 1981Assignee: General Electric CompanyInventor: Allan S. Hay
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Patent number: 4242475Abstract: A process for producing a curable resin is provided which comprises the steps of polymerizing a five-member cyclic compound (A) having an unsaturated conjugated double bond and represented by the general formula (A) given below; ##STR1## (wherein R is an organic residue having from 1 to 3 carbon atoms; m and n are integers and are in the relation of m+n=6)or Diels-Alder addition product thereof (A) with at least one phenolic compound (B) selected from the group consisting of monohydric and polyhydric phenols and alkyl substituents thereof to obtain a resin (I) having at least one phenolic hydroxyl group and an average molecular weight of from 300 to 2000; hydrogenating said resin (I) to convert the aromatic ring of the phenolic compound unit into the cyclohexane structure thereby to obtain a resin (II); and esterifying said resin (II) with an .alpha., .beta.-unsaturated carboxylic acid (C). A curable coating composition is also provided which comprises as vehicle the above curable resin.Type: GrantFiled: January 15, 1979Date of Patent: December 30, 1980Assignee: Nippon Oil Company, LimitedInventors: Shozo Tsuchiya, Hideo Hayashi
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Patent number: 4230548Abstract: The present invention relates to high-molecular weight aromatic polycarbonates, based on diphenols and monofunctional chain stoppers, corresponding to the formula (I) ##STR1## in which Z denotes the radical of a diphenol,n denotes an integer from about 20 to 400,E denotes ##STR2## wherein m denotes 0 or 1 andR denotes H or C.sub.1 -C.sub.3 -alkyl.The present invention also relates to a process for the preparation of the polycarbonates of the formula (I) comprising reacting diphenols of the formula (II)HO--Z--OH (II)whereinZ is a divalent aromatic radical, and/or their chlorocarbonic acid esters in accordance with the processes which are known for the preparation of polycarbonates, in a homogeneous or heterogeneous phase system, with compounds of the formula (III) ##STR3## wherein m denotes 0 or 1 andR denotes H or C.sub.1 -C.sub.3 -alkyl.Type: GrantFiled: April 30, 1979Date of Patent: October 28, 1980Assignee: Bayer AktiengesellschaftInventors: Siegfried Adelmann, Dieter Margotte, Hugo Vernaleken
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Patent number: 4229560Abstract: A thermostable heterocyclic polymer constituted by monomer units of the general formula ##STR1## where R.sup.1 and R.sup.2 denote an organic radical having from 2 to 1000 carbon atoms;a radical having 2 to 1000 carbon atoms, containing:1 to 1000 atoms of Si,and/or 1 to 1000 atoms of F,and/or 1 to 1000 atoms of Cl,and/or 1 to 1000 atoms of Br,and/or 1 to 1000 atoms of N,and/or 1 to 1000 atoms of S,and/or 1 to 1000 atoms of P,and/or 1 to 1000 atoms of B,and/or 1 to 1000 atoms of O,R.sup.1 and R.sup.2 being either the same or different;R.sup.3 .dbd.NH, CH.sub.2 ;R.sup.4 is a radical which, with R.sup.3 .dbd.NH, may be ##STR2## while with R.sup.3 .dbd.CH.sub.Type: GrantFiled: May 30, 1978Date of Patent: October 21, 1980Inventors: Alexei Y. Chernikhov, Mikhail N. Yakovlev, Valentina B. Lysova, Evgeny L. Gefter, Nina N. Shmagina
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Patent number: 4229564Abstract: The molecular weight of highly aromatic polymers made by the Friedel-Crafts polymerization of EN monomers of the formula Ar--L--Ar.sup.1 --X, wherein X is selected from SO.sub.2 Y or COY, Y being a radical selected from --OH, halogen, or alkyl, wherein Ar and Ar.sup.1 are independently ##STR1## wherein L is --CO--, --SO.sub.2 --, phenyleneoxy, --NHCO--, a covalent bond, --O--, or --CR.sub.2 --, wherein each R is independently hydrogen, an alkyl or fluoroalkyl group, phenyl or a phenyl group substituted by an electron withdrawing group such as halogen, NO.sub.2 or --CN, is controlled by including in the reaction mixture an acylatable aromatic compound whose rate of acylation under Friedel-Crafts conditions is at least about 150 times that of benzene. The molecular weight of other polymers made from EN type monomers by Friedel-Crafts catalysis can also be controlled in this way.Type: GrantFiled: April 26, 1976Date of Patent: October 21, 1980Assignee: Raychem CorporationInventor: Klaus J. Dahl
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Patent number: 4221901Abstract: A method is described for dehydrochlorinating 1,1,1-trichloro-2,2-bis(4-hydroxyphenyl)ethane employing a refluxing dipolar aprotic solvent, such as dimethylformamide, containing a lithium halide catalyst to produce a crystalline product consisting essentially of 1,1-dichloro-2,2-bis(4-hydroxyphenyl)ethylene. The crystalline product can be isolated in substantially pure form and converted to a high impact, flame retardant polycarbonate.Type: GrantFiled: June 27, 1978Date of Patent: September 9, 1980Assignee: General Electric CompanyInventors: William K. S. Cleveland, Jimmy L. Webb, Charles M. Orlando
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Patent number: 4217438Abstract: A polycarbonate process comprising contacting in the presence of a base, a .beta.-fluoroaliphatic carbonate, and a polyhydroxy compound selected from alcohols and/or phenols. The resulting polycarbonates are useful as polycarbonates per se, or useful in the preparation of high molecular weight polycarbonates which can be molded or formed into films, laminates or reinforced plastics by conventional techniques.Type: GrantFiled: December 15, 1978Date of Patent: August 12, 1980Assignee: General Electric CompanyInventors: Daniel J. Brunelle, William E. Smith
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Patent number: 4216305Abstract: Aromatic polycarbonates having chemically combined bisphenol-formal dimer units are provided and method for making such materials. The aromatic polycarbonates are injection moldable and have reduced glass transition temperatures.Type: GrantFiled: September 18, 1978Date of Patent: August 5, 1980Assignee: General Electric CompanyInventor: James C. Carnahan
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Patent number: 4210731Abstract: There are provided aromatic polyformal-polycarbonate block polymers and method for making such materials. The polyformal-polycarbonate block polymers can be made by phosgenating a mixture of a bisphenol and oligomeric aromatic polyformal having terminal phenolic groups. The aromatic block polymers are high performance thermoplastics having improved hydrolytic stability compared to aromatic polycarbonates and improved heat distortion temperature compared to conventional aromatic polyformal.Type: GrantFiled: September 18, 1978Date of Patent: July 1, 1980Assignee: General Electric CompanyInventors: Howard M. Relles, Donald S. Johnson
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Patent number: 4207406Abstract: A process for preparing copolymers of polyphenylene oxide employing a manganese (II) chelate catalyst is disclosed as well as grafted copolymers thereof.Type: GrantFiled: May 9, 1978Date of Patent: June 10, 1980Assignee: General Electric CompanyInventor: Walter K. Olander
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Patent number: 4206107Abstract: The products of the invention are acetylene end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic such as 3, 3', 4, 4'-benzophenonetetracarboxylic acid, an aromatic triamine, and a propargyl ester of an amino-substituted aromatic acid such as aminobenzoic acid. The structure of the polyimide oligomers is shown in FIG. 3.Type: GrantFiled: April 26, 1979Date of Patent: June 3, 1980Assignee: Gulf Oil CorporationInventors: Wai Y. Chow, S. Paul Thackaberry
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Patent number: 4206106Abstract: The products of the invention are vinyl end-capped oligomers which are prepared from 2,4-bis (p-aminobenzyl) aniline and a vinyl substituted aromatic monoamine, the principal component of which is the compound whose structure is shown in FIG. 3. The products are prepared from either of two (2) precursors. The first precursor is a compound whose structure is shown in FIG. 2 and which is prepared from 2,4-bis (p-aminobenzyl) aniline, a dianhydride of an aromatic tetracarboxylic acid such as 3,3'4,4'-benzophenonetetracarboxylic acid (BTDA) and a vinyl substituted aromatic monoamine, such as 3-aminophenyl-ethylene (APE). The second precursor is a complex amine salt having the structure shown in FIG. 6 and which is prepared from 2,4-bis-(p-aminobenzyl) aniline, a dialkyl ester of BTDA and APE.Type: GrantFiled: April 5, 1979Date of Patent: June 3, 1980Assignee: Gulf Oil CorporationInventors: William J. Heilman, Daniel J. Hurley
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Patent number: 4200697Abstract: Unsaturated polyester resins will form foamed or solid plastics with water-binding agents containing an oxidated silicon compound in the presence of an initiator.Type: GrantFiled: February 7, 1979Date of Patent: April 29, 1980Inventor: David H. Blount
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Patent number: 4197385Abstract: A resin for coating sand and a resin-coated sand produced therefrom wherein the resin is prepared by incorporating furan into a phenolic novolak resin. In the preferred practice, the resin is produced by reaction of furfuryl alcohol with a phenolic compound at an acid pH to give a furfuryl-phenolic intermediate in a first step, and then, in a second step, reacting the furfuryl-phenolic intermediate with a lower aliphatic aldehyde to produce the resin. The resin-coated sands of the present invention provide unexpectedly improved shakeout and collapsibility characteristics in the shell process.Type: GrantFiled: August 11, 1978Date of Patent: April 8, 1980Assignee: CPC International Inc.Inventor: Robert Laitar
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Patent number: 4197394Abstract: A method is provided for making cyclic carbonates of 2,2-bis(4-hydroxyphenyl)-1,1-dichloroethylene, such as the cyclic trimer, by effecting the polymerization of the aforementioned bis (4-hydroxyphenyl)dichloroethylene to a linear polycarbonate, and then agitating a solution of the resulting polycarbonate in the presence of a tertiary ogranic amine. The cyclic carbonates made by the aforementioned process are useful as flame retardants in polycarbonates.Type: GrantFiled: August 21, 1978Date of Patent: April 8, 1980Assignee: General Electric CompanyInventor: John E. Hallgren
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Patent number: 4197395Abstract: A process, and the composition therefrom, is provided for crosslinking of polymers containing hydroxy or mercaptan groups by reaction with polyaldehyde compounds, the crosslinks being thermally labile.Type: GrantFiled: March 27, 1978Date of Patent: April 8, 1980Assignee: Polysar LimitedInventors: Raymond U. Lemieux, Rastko Vukov
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Patent number: 4196276Abstract: High-molecular weight polycarbonate elastomers are produced by reacting polymer segments having an average molecular weight (Mn) of more than 600 and carboxyl groups with diphenols and phosgene according to the two-phase boundary polycondensation process at a pH value between about 9 and about 14 and a temperature between about 0.degree. C. and 80.degree. C. and, thereafter, either heat-treating the resulting reaction products at temperatures between about 40.degree. C. and about 100.degree. C. or gelling the resulting reaction products in solution in organic solvents.Type: GrantFiled: January 16, 1978Date of Patent: April 1, 1980Assignee: Bayer AktiengesellschaftInventors: Manfred Schreckenberg, Klaus Konig, Dieter Freitag, Volker Serini
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Patent number: 4182838Abstract: Improved flame retardance and improved water vapor transmission are imparted to high molecular weight aromatic polycarbonate resins by selecting appropriate diphenols and controlling the degree to which these particular diphenols are halogenated.Type: GrantFiled: February 28, 1978Date of Patent: January 8, 1980Assignee: General Electric CompanyInventors: Victor Mark, Charles V. Hedges
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Patent number: 4163833Abstract: There is provided, a method for making cyclic poly-formal substantially free of linear polyformal by agitating a plural phase mixture of an aqueous alkali metal salt solution of bisphenol in contact with methylene halide and a phase transfer catalyst. The cyclic polyformal can be used to make wire coating compositions.Type: GrantFiled: May 15, 1978Date of Patent: August 7, 1979Assignee: General Electric CompanyInventor: Donald S. Johnson
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Patent number: 4154909Abstract: A cation exchange membrane is produced by treating a membrane of a fluorinated polymer having sulfonyl halide group on side chains with a mixture of 1 a reaction product of an amine with a halogenated monomer and 2 a vinyl monomer and/or diene monomer each of which has carboxylic acid group, phenolic hydroxyl group, sulfonic acid group and/or a functional group being convertible into carboxylic acid group, phenolic hydroxyl group or sulfonic acid group.Type: GrantFiled: July 31, 1978Date of Patent: May 15, 1979Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Toru Seita, Kenji Takahashi, Shunichi Asami, Akihiko Shimizu
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Patent number: RE30922Abstract: The products of the invention are vinyl end-capped oligomers which are prepared from 2,4-bis (p-aminobenzyl) aniline and a vinyl substituted aromatic monoamine, the principal component of which is the compound whose structure is shown in FIG. 3. The products are prepared from either of two (2) precursors. The first precursor is a compound whose structure is shown in FIG. 2 and which is prepared from 2,4-bis (p-aminobenzyl) aniline, a dianhydride of an aromatic tetracarboxylic acid such as 3,3'4,4'-benzophenonetetracarboxylic acid (BTDA) and a vinyl substituted aromatic monoamine, such as 3-aminophenyl-ethylene (APE). The second precursor is a complex amine salt having the structure shown in FIG. 6 and which is prepared from 2,4-bis-(p-aminobenzyl) aniline, a dialkyl ester of BTDA and APE.Type: GrantFiled: August 25, 1980Date of Patent: May 4, 1982Assignee: Gulf Oil CorporationInventors: William J. Heilman, Daniel J. Hurley