Halogen-containing Material Is A Reactant Patents (Class 528/174)
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Patent number: 4701514Abstract: Oligomers of polyarylene polyethethers (PAPE) having a mol wt Mn in the range from 1000 to about 10,000 are converted to difunctionalized oligomers so as, in the first instance, to provide a reactive double bond (for example, a vinylbenzyl group) at each end of the PAPE; and, in the second instance, to provide a triple bond (benzylethynyl group) at each end of the PAPE. The PAPE most preferably has a repeating unit which is the residuum of two dihydric phenols or thiophenols ("DHP") linked through a C=O, --S--S--, or --SO.sub.2 -group, or a Si or C atom, and or ether O, or thioether S atoms. The preferred repeating unit is formed by reaction of a DHP such as bisphenol A (BPA) with a halogenated DHP such as dichlorophenyl sulfone (DCPS) so as to provide an alternating configuration. The repeating unit may also include a linking residue of a reactive solvent which residue provides chain extension in the backbone.Type: GrantFiled: December 30, 1985Date of Patent: October 20, 1987Assignee: B.F. Goodrich CompanyInventor: Virgil Percec
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Patent number: 4701516Abstract: A thermoplastic polyester-carbonate resin containing in the polymer chain, divalent moieties of the formula: ##STR1## wherein R represents aliphatic hydrocarbyl of from 1 to 9 carbon atoms, inclusive, halogen substituted aliphatic hydrocarbyl of 1 to 9 carbon atoms, inclusive, aralkyl of 7 to 10 carbon atoms, inclusive and halogen substituted aralkyl of 7 to 10 carbon atoms, inclusive; a and b are each whole number integers of from 0 to 1; and the sum of a+b is 1 and wherein there are sufficient linkages of formula I to lower the glass transition temperature of the polymer.Type: GrantFiled: December 30, 1985Date of Patent: October 20, 1987Assignee: General Electric CompanyInventor: Niles R. Rosenquist
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Patent number: 4695620Abstract: A polycarbonate resin having an improved flexibility, flowability and heat resistance, and a process for producing such polycarbonate resins are disclosed. The polycarbonate resin of this invention is particularly useful as optical articles and other precision molding materials and is produced by a solution polymerization method using a bisphenol compound and a substituted alkylenebisphenol compound.Type: GrantFiled: April 17, 1986Date of Patent: September 22, 1987Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Mituhiko Masumoto, Shigeo Yanada, Tadami Kinugawa
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Patent number: 4687833Abstract: Described herein are novel crystalline chain extended poly(aryl ether ketones) which display excellent toughness, fabricability and very good high temperature and solvent resistance.Type: GrantFiled: July 3, 1986Date of Patent: August 18, 1987Assignee: Amoco CorporationInventors: Robert A. Clendinning, George T. Kwiatkowski
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Patent number: 4680372Abstract: Linear aromatic polyesters produce by melt polymerization of a bisphenol and an aromatic dicarboxylic acid such as terephthalic acid and/or isophthalic acid are end-capped during melt polymerization by the addition of phenyl benzoate to provide benzoate terminal groups.Type: GrantFiled: February 25, 1986Date of Patent: July 14, 1987Assignee: Celanese CorporationInventor: Jerold C. Rosenfeld
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Patent number: 4667010Abstract: Linear polyether resins containing 100 to 10 mol % of the repeating structural unit of formula I ##STR1## and 90 to 0 mol % of the repeating structural unit of formula II ##STR2## wherein A is a linear unsubstituted or methyl-substituted alkylene group containing 4 to 100 carbon atoms in the linear alkylene chain, X denotes bridge members as defined in claim 1 and Y is an aromatic radical of a divalent phenol as defined in claim 1, are self-crosslinkable and can be crosslinked by heating to a temperature of not less than 250.degree. C. or by irradiation with energy-rich electromagnetic rays, affording products which are insoluble in organic solvents and which have high glass transition temperatures.Type: GrantFiled: January 14, 1986Date of Patent: May 19, 1987Assignee: Ciba-Geigy CorporationInventor: Sameer H. Eldin
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Patent number: 4665154Abstract: Novel compositions of matter comprise homogeneous thermoset copolymers resulting from the reaction between a poly(vinyl benzyl ether) of a polyphenol and a dicyanate ester of a polyether of a polyphenol may be used as components in laminates which are employed in electronic circuit boards. The copolymers will impart desirable characteristics such as high glass transition temperatures and low dielectric constants to the finished product.Type: GrantFiled: June 6, 1986Date of Patent: May 12, 1987Assignee: Allied CorporationInventors: William D. Varnell, Thomas D. Newton
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Patent number: 4654410Abstract: An aromatic polysulfone ether/polythioether sulfone copolymer having the formula: ##STR1## wherein each of R.sup.1 and R.sup.2 which may be the same or different, is hydrogen, halogen or a hydrocarbon group having from 1 to 8 carbon atoms, each of a and b which may be the same or different, is an integer of from 0 to 4, Ar is a bivalent aromatic residue selected from the group consisting of: ##STR2## wherein each of R.sup.3, R.sup.4 and R.sup.5 which may be the same or different, is hydrogen, or a hydrocarbon group having from 1 to 8 carbon atoms, each of c to e which may be the same of different, is an integer of from 0 to 4, Y is a single bond, --O--, --S--, --SO--, --SO.sub.2 --, ##STR3## wherein R is hydrogen or a hydrocarbon group having from 1 to 6 carbon atoms, and each of m and n is an integer indicating the degree of polymerization and m:n is from 1:20 to 20:1, said copolymer having an inherent viscosity .eta..sub.inh of from 0.1 to 1.5 as measured at 30.degree. C.Type: GrantFiled: March 17, 1986Date of Patent: March 31, 1987Assignee: Asahi Glass Company, Ltd.Inventors: Josho Kashiwame, Yoshihiro Otsuka, Shigeyuki Kozawa
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Patent number: 4640974Abstract: Polycyanoaryl ether stretched films and fibers prepared from polycyanoaryl ethers containing specific repeating units and number-average molecular weights or reduced viscosities by stretching molded films or melt-spinned fibers, said films and fibers having superior heat resistance and mechanical strength.Type: GrantFiled: February 18, 1986Date of Patent: February 3, 1987Assignee: Idemitsu Kosan Company LimitedInventors: Shigeru Matsuo, Tomoyoshi Murakami
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Patent number: 4638027Abstract: Thermoplastic, linear, high molecular weight, end-capped aromatic polycarbonate polymers exhibiting improved heat resistance derived from:(i) a carbonate precursor; and(ii) at least one dihydric phenol represented by the general formula ##STR1## wherein X is selected from monocyclic cycloalkylidene radicals containing from 10 to about 16 ring carbon atoms. These polycarbonate polymers have an intrinsic viscosity in methylene chloride at 25.degree. C. of at least 0.38 dl./gm.Type: GrantFiled: December 20, 1984Date of Patent: January 20, 1987Assignee: General Electric CompanyInventors: Victor Mark, Charles V. Hedges
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Patent number: 4638044Abstract: Described herein is an improved process for preparing poly(aryl ether ketone)s by reacting a mixture of at least one bisphenol and at least one dihalobenzenoid compound or halophenol, wherein the improvement comprises providing to the reaction, a combination of sodium carbonate and/or bicarbonate and an alkali metal halide selected from potassium, rubidium or cesium fluoride or chloride, or combinations thereof.Type: GrantFiled: March 20, 1985Date of Patent: January 20, 1987Assignee: Amoco CorporationInventor: Donald R. Kelsey
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Patent number: 4636557Abstract: The invention relates to a process for the preparation of aromatic polyethers by condensation of the reactants in the presence of a condensation agent consisting of a mixture of metal carbonates comprising (a) lithium and/or an alkaline earth metal carbonate and (b) sodium, potassium, rubidium and/or cesium carbonate.The combination of carbonates (a) and (b) according to the invention leads to a surprising increase in activity.Type: GrantFiled: November 21, 1984Date of Patent: January 13, 1987Assignee: Hoechst AktiengesellschaftInventor: Hellmuth Deckers
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Patent number: 4598137Abstract: An aromatic ionomeric copolymer having arylether and arylsulfone linkages has been prepared by condensation of both:(a) The alkali metal bisphenate salts of 9,9-bis(4-hydroxyphenyl-fluoren-4-carboxylic acid, optionally with up to 99 mol percent of another dihydric phenol based on the combined bisphenates in the mixture;and(b) dihalodiphenylsulfones where the halogen is selected from chlorine or fluorine.The copolymers are useful inter alia as ion exchange materials and permselective membranes.A process of preparing and purifying the carboxylic acid containing bisphenol monomer is described.Type: GrantFiled: November 30, 1984Date of Patent: July 1, 1986Assignee: Canadian Patents and Development LimitedInventors: Michael D. Guiver, Oleh Kutowy, John W. Apsimon
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Patent number: 4594404Abstract: This invention relates to moldable polycarbonate compositions and in particular to moldable polycarbonates which have ordered alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl)sulfone (TMBS) and 2,2-bis-(4-hydroxyphenyl)propane (Bisphenol A) dihaloformate, or ordered, alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl) sulfone (TMBS) dihaloformate and a bisphenol compound such as 2,2-bis-(4-hydroxyphenyl)propane (Bisphenol A). Such polycarbonates exhibit improved hydrolytic stability and also excellent processability in molding applications.Type: GrantFiled: March 20, 1984Date of Patent: June 10, 1986Assignee: Union Carbide CorporationInventors: James H. Kawakami, James E. Harris, Louis M. Maresca, Lloyd M. Robeson, Robert J. Cotter
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Patent number: 4587312Abstract: Sulfone-ester polymers containing pendent ethynyl groups and a direct and multi-step process for preparing same are disclosed. The multi-step process involves the conversion of a pendent bromo group to the ethynyl group while the direct route involves reacting hydroxy-terminated sulfone oligomer or polymers with a stoichiometric amount of 5-(4-ethynylphenoxy)isophthaloyl chloride. The 5-(4-ethynylphenoxy)isophthaloyl chloride and process for preparing same are also disclosed.Type: GrantFiled: May 23, 1984Date of Patent: May 6, 1986Assignee: The United States of America as represented by the National Aeronautics and Space AdministrationInventors: Paul M. Hergenrother, Brian J. Jensen
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Patent number: 4576996Abstract: Novel heat resistant polycarbonates are provided which are the polymerized reaction products of:(i) a carbonate precursor; and(ii) at least one dihydric phenol selected from dihydric phenols represented by the general formulae ##STR1## wherein: each R.sup.1 is independently selected from halogen radicals, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals;each R.sup.2 is independently selected from halogen radicals, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals;R.sup.4 and R.sup.5 are independently selected from monovalent hydrocarbon radicals;R.sup.3 is selected from hydrogen and monovalent hydrocarbon radicals, with the proviso that if R.sup.3 is a hydrogen radical then at least one of the monovalent hydrocarbon radicals represented by R.sup.4 and R.sup.5 contains at least two carbon atoms;R.sup.7 is selected from hydrogen and monovalent hydrocarbon radicals;R.sup.Type: GrantFiled: March 1, 1985Date of Patent: March 18, 1986Assignee: General Electric CompanyInventors: Victor Mark, Charles V. Hedges
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Patent number: 4577000Abstract: Certain water-soluble polymers retain their viscosities in high brine environments and are highly useful as surfactant-mobility control agents in oil recovery processes. These polymers have stiff backbone chains which are poly-2,6-dimethyl-p-phenylene oxide, polysulfone or poly(p-phenylene ether-sulfone) and side chains which may be formed by halomethylating phenyl rings of these backbone chains followed by quaternizing the halomethyl groups. For more thickening power, the molecular weight of the polymer can be increased by controlled cross-linking with a calculated amount of difunctional amine.Type: GrantFiled: September 29, 1982Date of Patent: March 18, 1986Assignee: Mobil Oil CorporationInventors: Catherine S. H. Chen, Albert L. Williams
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Patent number: 4567248Abstract: Branched, high molecular weight, thermoplastic polyarylene ethers which contain nitrile groups and are composed of repeating units of the formula I--E.sub.1 --O--E.sub.2 --O--where E.sub.1 is a radical derived from a dihalobenzene compound and E.sub.2 is a radical derived from a bisphenol, and contain from 0.01 to 5 mol %, based on the radical E.sub.1, of one or more radicals derived from polyhalo compounds of the formulae ##STR1## where X is fluorine or chlorine, and their preparation.Type: GrantFiled: December 13, 1984Date of Patent: January 28, 1986Assignee: BASF AktiengesellschaftInventors: Gerd Blinne, Herbert Bender, Peter Neumann
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Patent number: 4562243Abstract: Oligomers of polyarylene polyethers (PAPE) having a mol wt Mn in the range from 1000 to about 10,000 are converted to difunctionalized oligomers so as, in the first instance, to provide a reactive double bond (for example, a vinylbenzyl group) at each end of the PAPE; and, in the second instance, to provide a triple bond (benzylethynyl group) at each end of the PAPE. The PAPE most preferably has a repeating unit which is the residuum of two dihydric phenols or thiophenols ("DHP") linked through a C.dbd.O, --S--S--, or --SO.sub.2 -group, or a Si or C atom, and or ether O, or thioether S atoms. The preferred repeating unit is formed by reaction of a DHP such as bisphenol A (BPA) with a halogenated DHP such as dichlorophenyl sulfone (DCPS) so as to provide an alternating configuration. The repeating unit may also include a linking residue of a reactive solvent which residue provides chain extension in the backbone.Type: GrantFiled: March 6, 1984Date of Patent: December 31, 1985Assignee: The B. F. Goodrich CompanyInventor: Virgil Percec
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Patent number: 4550140Abstract: Circuit board substrates prepared from poly(aryl ether)s which contain repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl) sulfone (TMBS) exhibit adequate glass transition temperatures (Tg), acceptable plateability and acceptable resistance to water absorption.Type: GrantFiled: March 20, 1984Date of Patent: October 29, 1985Assignee: Union Carbide CorporationInventors: Stephen B. Rimsa, James E. Harris, Herbert S. Chao, Louis M. Maresca
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Patent number: 4544705Abstract: This invention is directed to novel aromatic polyformals comprising from about 5 weight percent to about 95 weight percent of repeating units (I) having the formula ##STR1## and from about 95 weight percent to about 5 weight percent of repeating units (II) having the formula ##STR2## in which the repeating units (I) and the repeating units (II) are connected by interbonding units (III) having the formula--CH.sub.2 -- (III)wherein Y is selected from alkyl groups of 1 to 4 carbon atoms, chlorine or bromine, each z, independently, has a value of from 0 to 4 inclusive, n has a value of 0 or 1, and R.sub.1 is a divalent saturated or unsaturated hydrocarbon radical, O, CO, SO.sub.2, S or a direct bond, with the proviso that when R.sub.1 is SO.sub.2 then repeating unit (II) is not the same as repeating unit (I). The invention is also directed to a process for preparing the novel aromatic polyformals. The aromatic polyformals have utility as molded plastic materials, adhesives, sealants and the like.Type: GrantFiled: December 21, 1983Date of Patent: October 1, 1985Assignee: Union Carbide CorporationInventor: Louis M. Maresca
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Patent number: 4539384Abstract: The present invention relates to the novel monomer 4,4'-bis(4-hydroxyphenyl thio)biphenyl, to a process for its production and to its use in the preparation of polycarbonates, polyurethanes, polyesters, polysulfones and polyethers.Type: GrantFiled: May 7, 1984Date of Patent: September 3, 1985Assignee: Mobay Chemical CorporationInventors: Sivaram Krishnan, John R. Sanderson
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Patent number: 4535143Abstract: The present invention is directed to a continuous process for the preparation of copolycarbonates of sulfonyl diphenol (SDP) containing at least about 15, preferably about 15 to about 80 percent by weight of SDP and characterized in the particular system catalyzing the process reaction. The invention thus entails improvements and modifications to the known interfacial polycondensation process rendering it applicable to the preparation of copolycarbonates containing a high level of SDP comprising a combination of catalysts namely a phase transfer catalyst and a condensation catalyst.Type: GrantFiled: August 6, 1984Date of Patent: August 13, 1985Assignee: Mobay Chemical CorporationInventors: Ronald L. Price, Mark W. Witman, Sivaram Krishnan
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Patent number: 4533721Abstract: A novel, linear, chlorine-containing polyether-sulfone polymer excellent in flame retardancy, heat resistance, transparency, and water resistance, which is obtained by polymerizing at least one aromatic tri- or tetra-halide with at least one dialkali metal salt of a dihydric phenol, and a process for the preparation of this polymer. The polymer is represented by the following general formula: ##STR1## wherein X and Y stand for a hydrogen atom or a chlorine atom, with the proviso that at least one of X and Y is a chlorine atom, Q stands for a direct bond, --O--, --S-- or a divalent aliphatic or alicyclic hydrocarbon group in which the carbon number is an integer of from 1 to 6, m is 0 or 1, and n is an integer of from 10 to 1000.Type: GrantFiled: August 23, 1983Date of Patent: August 6, 1985Assignee: Showa Denko Kabushiki KaishaInventors: Shigeru Kurosawa, Takashi Ueshima
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Patent number: 4520187Abstract: Novel heat resistant polycarbonates are provided which are the polymerized reaction products of:(i) a carbonate precursor; and(ii) at least one dihydric phenol selected from dihydric phenols represented by the general formulae ##STR1## wherein: each R.sup.1 is independently selected from halogen radicals, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals;each R.sup.2 is independently selected from halogen radicals, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals;R.sup.4 and R.sup.5 are independently selected from monovalent hydrocarbon radicals;R.sup.3 is selected from hydrogen and monovalent hydrocarbon radicals, with the proviso that if R.sup.3 is a hydrogen radical than at least one of the monovalent hydrocarbon radicals represented by R.sup.4 and R.sup.5 contains at least two carbon atoms;R.sup.7 is selected from hydrogen and monovalent hydrocarbon radicals;R.sup.Type: GrantFiled: December 17, 1982Date of Patent: May 28, 1985Assignee: General Electric CompanyInventors: Victor Mark, Charles V. Hedges
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Patent number: 4515937Abstract: The invention relates to an aromatic, high molecular weight thermoplastic copolycarbonate comprising the reaction product of a sulfur-free aromatic diphenol, a sulfur-containing diphenol, a branching agent and a carbonic acid derivative, characterized in having improved flame resistance. The invention further relates to a process for the preparation of said copolycarbonate.Type: GrantFiled: September 9, 1980Date of Patent: May 7, 1985Assignee: Mobay Chemical CorporationInventors: Arthur L. Baron, Sivaram Krishnan
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Patent number: 4513131Abstract: Thermally stable resins based on arylether compounds having terminal phenylethynyl groups are provided.Type: GrantFiled: July 25, 1984Date of Patent: April 23, 1985Inventors: Bruce A. Reinhardt, Fred E. Arnold, Marilyn R. Unroe
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Patent number: 4503121Abstract: Described herein are laminate compositions comprising a polyarylate, or blends thereof, derived from a dihydric phenol and an aromatic dicarboxylic acid which is laminated upon the surface of a poly(aryl ether), particularly polysulfone. In contrast to the highly ultraviolet sensitive polysulfone, the laminate compositions of this invention exhibit good weatherability including no adverse effects, e.g., degradation, from prolonged ultraviolet irradiation exposure. The laminate compositions of this invention have beneficial utility in solar energy applications.Type: GrantFiled: April 4, 1984Date of Patent: March 5, 1985Assignee: Union Carbide CorporationInventors: Lloyd M. Robeson, John W. Lynn
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Patent number: 4501875Abstract: Novel carbonate polymers exhibiting improved processability comprised of the polymerized reaction products of (i) at least one dihydric phenol, (ii) a carbonyl halide carbonate precursor, and (iii) at least one specific bishaloformate. The bishaloformate is selected from bishaloformates represented by the general formulae ##STR1## wherein: X is independently selected from chlorine and bromine radicals;R is selected from alkylene radicals, cycloalkylene radicals, and divalent hydrocarbon radicals;R.sup.3 and R.sup.4 are independently selected from alkylene radicals; andZ is selected from the following divalent radicals ##STR2## the --(R.sup.6).sub.d --Ar--(R.sup.7).sub.e --radical wherein Ar represents a divalent mono-, di- or polynuclear aromatic residue, R.sup.6 and R.sup.Type: GrantFiled: August 23, 1982Date of Patent: February 26, 1985Assignee: General Electric CompanyInventor: Victor Mark
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Patent number: 4499257Abstract: This invention is directed to novel poly(ester-carbonate)s containing repeating units derived from bis(3,5-dimethyl-4-hydroxyphenyl) sulfone and up to 80% of another dihydric phenol linked together by carbonate and arylate units. The invention is also directed to a process for preparation of this polymer.Type: GrantFiled: April 18, 1983Date of Patent: February 12, 1985Assignee: Union Carbide CorporationInventor: Louis M. Maresca
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Patent number: 4497947Abstract: The present invention is directed to an aromatic copolycarbonate molding composition comprising the reaction product of an aromatic diphenol, an aromatic sulfonyl diphenol, a dihydroxybiphenyl and a carbonic acid derivative, said composition being characterized by its improved heat deflection temperature and critical thickness.Type: GrantFiled: December 5, 1983Date of Patent: February 5, 1985Assignee: Mobay Chemical CorporationInventors: John R. Sanderson, Sivaram Krishnan
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Patent number: 4495345Abstract: An optical element including an optical resin composition consisting essentially of a polycarbonate is disclosed. Said optical resin composition have a melt flow rate of more than or equal to 5.0 g/10 min. as measured based on ISO R-1133 Standard under the condition of 230.degree. C. and 5 kgf. and have a glass transition point of more than or equal to 100.degree. C. Said polycarbonate include a major repeating unit represented by the formula (I) or (II). ##STR1## wherein Ar.sub.1 and Ar.sub.2 each represent an arylene group or a cycloalkylene group; R represents an alkylene group, a cycloalkylene group, --O--, --O--Ar.sub.3 --O--, --S--, --SO--, --SO.sub.2 --, --SO.sub.2 --Ar.sub.3 --SO.sub.2 --, --R.sub.1 --Ar.sub.4 --R.sub.1 --, --O--R.sub.1 --O--, ##STR2## --CONH--R.sub.1 --NHCO--, or --Ar.sub.5 --R.sub.1 --; Ar.sub.3 and Ar.sub.4 each represent a phenylene group or a bisphenylene group; R.sub.1 represents an alkylene group; R.sub.2 represents an alkyl group; Ar.sub.Type: GrantFiled: March 11, 1983Date of Patent: January 22, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Sota Kawakami, Hideki Murata, Satoshi Matsunaga, Toshihiko Kiriki
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Patent number: 4489181Abstract: Compositions of an aromatic polycarbonate, a polysulfone carbonate and a filler are disclosed which have good electrical properties, high modulus and molten solder resistance.Type: GrantFiled: November 7, 1983Date of Patent: December 18, 1984Inventors: Daniel W. Fox, Robert R. Gallucci, Edward N. Peters, Gary F. Smith
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Patent number: 4486576Abstract: High-temperature coating materials are prepared by cross-linking copolymers of oligomers produced by nickel catalyzed coupling of unsubstituted aryl polyhalides with substituted organic halides.Type: GrantFiled: April 22, 1982Date of Patent: December 4, 1984Assignee: Union Carbide CorporationInventors: Ismael Colon, Charles N. Merriam
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Patent number: 4474932Abstract: Aromatic ethers or polyethers are produced by reacting aromatic fluorine compounds, in which one or more fluorine substituents are attached to an aromatic nucleus, with trialkyl silyl derivatives of phenols, in which one or more trialkyl silyl groups are attached to the residue of a mono- or polyphenol, or by reacting trialkyl silyl derivatives of fluorophenols with elimination of trialkylfluorosilane.Type: GrantFiled: March 16, 1983Date of Patent: October 2, 1984Assignee: Bayer AktiengesellschaftInventors: Gerhard Bier, Hans R. Kricheldorf
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Patent number: 4473684Abstract: Poly(aryl ether)s which contain at least 20% by weight of bis-(3,5-dimethyl-4-oxyphenyl)sulfone structural units exhibit improved glass transition temperatures, improved flame resistance, improved gas permeability and improved alloying compatibility.Type: GrantFiled: April 18, 1983Date of Patent: September 25, 1984Assignee: Union Carbide CorporationInventors: Louis M. Maresca, Herbert S. Chao
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Patent number: 4452966Abstract: A process for producing polycarbonate is described, comprising reacting a chloroformate group-containing polycarbonate oligomer with an aqueous alkaline solution of a compound containing at least three functional groups and, thereafter, interfacial polycondensing the above-obtained reaction product with an aqueous alkaline solution of a dihydric phenol compound. The thus-produced polycarbonate has good melt characteristics compared with conventional polycarbonates, and the dependence of melt viscosity on a rate of shear is large. Thus, the polycarbonate of the invention is suitable for extrusion molding, particularly for blow molding using an extrusion molding machine, and can provide good quality sheets or molds.Type: GrantFiled: April 5, 1983Date of Patent: June 5, 1984Assignee: Idemitsu Kosan Company LimitedInventors: Shigeru Matsuo, Masaaki Itoi
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Patent number: 4448950Abstract: Polycarbonates are provided having improved critical thickness values based on an aromatic diphenol preferably bisphenol A and an aromatic diphenol thioether. By incorporating 2 up to 20 mole percent of the aromatic diphenol thioether based on the total diphenol content into the polymer, the critical thickness of the article molded from the polycarbonate is substantially improved.Type: GrantFiled: August 14, 1980Date of Patent: May 15, 1984Assignee: Mobay Chemical CorporationInventors: Arthur L. Baron, Parameswar Sivaramakrishnan
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Patent number: 4446294Abstract: Amorphous aromatic etherketone/sulphone copolymers, normally of reduced viscosity.gtoreq.0.Type: GrantFiled: June 15, 1983Date of Patent: May 1, 1984Assignee: Imperial Chemical Industries PLCInventors: John B. Rose, Michael B. Cinderey
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Patent number: 4443593Abstract: Waste or surplus polycarbonates are salvaged by reacting them with a hydroxy amine in an amount sufficient to cleave about 85% or more of the carbonate groups, thereby converting the polymer to a mixture of dihydroxy monomers--including novel dihydroxy carbamates--which may be converted to useful polymers by reaction with other difunctional monomers having at least one hydroxy-reactive functional group per molecule.Type: GrantFiled: June 25, 1982Date of Patent: April 17, 1984Assignee: The Dow Chemical CompanyInventor: Guy R. Collins
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Patent number: 4430492Abstract: The present invention relates to polycarbonate compounds characterized in that dimeric fatty acid ester soft segments are co-condensed therein. The invention further relates to processes for preparation of these compounds and their use in films and molded articles.Type: GrantFiled: August 28, 1980Date of Patent: February 7, 1984Assignee: Bayer AktiengesellschaftInventors: Manfred Schreckenberg, Hans-Heribert Burgdorfer, Rolf Dhein, Gottfried Schneider
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Patent number: 4430485Abstract: Flame retardant polycarbonate and copolyestercarbonate compositions, and articles made therefrom, are disclosed which are obtained from polymers derived from non-polycyclic, sulfur-free diphenols and polymers derived from sulfur-containing diphenols.Type: GrantFiled: February 10, 1982Date of Patent: February 7, 1984Assignee: General Electric CompanyInventor: Victor Mark
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Patent number: 4425456Abstract: A copolycarbonate molding composition comprising the reaction product of an aromatic diphenol, a bis(4-hydroxyphenyl)biphenyl disulfone and a carbonate source is characterized by its high glass transition temperature. A blend thereof containing an organic acid salt is characterized by its improved flame retardance.Type: GrantFiled: September 28, 1981Date of Patent: January 10, 1984Assignee: Mobay Chemical CorporationInventors: Arthur L. Baron, Sivaram Krishnan, Mark W. Witman, Roger J. White
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Patent number: 4415720Abstract: Aromatic polysulphones are prepared by the reaction under substantially anhydrous conditions in the presence of a fluoroalkane sulphonic acid, particularly trifluoromethane sulphonic acid or difluoromethane sulphonic acid, of the reactants selected from the following class:(a) an aromatic compound of specified formula (such as diphenyl ether or diphenyl) and a sulphonating agent;(b) an aryl monosulphonic acid of specified formula (such as diphenyl ether-4-sulphonic acid or diphenyl-4-sulphonic acid); and(c) an aryl disulphonic acid of specified formula (such as diphenyl ether-4,4'-disulphonic acid or diphenyl-4,4'-disulphonic acid) and an aromatic compound as defined in (a).Type: GrantFiled: September 22, 1981Date of Patent: November 15, 1983Assignee: Imperial Chemical Industries PLCInventor: John B. Rose
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Patent number: 4414368Abstract: Polysulfone sulfonyl chlorides are described, which are useful as intermediates in the preparation of novel polysulfone sulfonamides.Type: GrantFiled: December 27, 1982Date of Patent: November 8, 1983Assignee: Albany International Corp.Inventors: Myron J. Coplan, Chunghi H. Park, Samuel C. Williams
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Patent number: 4413106Abstract: Novel sulfonated polyarylethersulfones are derived by heterogeneous sulfonation of polymer/solvent intercrystallites of difficultly sulfonatable polyarylethersulfones in chlorinated hydrocarbon solvents with a sulfonation agent.Type: GrantFiled: December 27, 1982Date of Patent: November 1, 1983Assignee: Albany International Corp.Inventors: Myron J. Coplan, Gertrud Gotz
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Patent number: 4404351Abstract: The present invention relates to a process for the isolation of polycarbonates containing 18 to 45 mol % of structural units consisting of sulphone-bisphenols, characterized in that the sulphone-bisphenols are subjected to a polycondensation reaction with oligocarbonates containing chloroformic acid ester end groups, the phases are separated, the organic phase is purified and the sulphone-bisphenol polycarbonates are isolated.Type: GrantFiled: September 20, 1982Date of Patent: September 13, 1983Assignee: Bayer AktiengesellschaftInventors: Peter Kafer, Leo Morbitzer, Dieter Neuray, Wolfgang Cohnen, Werner Nouvertne
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Patent number: 4403087Abstract: Aromatic carbonate polymers are end-capped with a sulfonic acid salt substituted phenol in sufficient quantity to provide flame retardant activity.Type: GrantFiled: September 28, 1981Date of Patent: September 6, 1983Assignee: General Electric CompanyInventor: Victor Mark
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Patent number: 4400499Abstract: Described herein is an integrated process for the preparation of substantially linear high molecular weight thermoplastic polymers derived from aryl polyhalide monomers. Aryl polyhalide monomers are first prepared by the reaction of an alkali metal salt of a phenol compound, e.g., dipotassium salt of bisphenol A, with a dihalobenzenoid compound, e.g., 4,4'-dichlorophenylsulfone, in a liquid phase of an aprotic solvent and an azeotrope former, e.g., toluene. Water is removed from the reaction mass as an azeotrope until substantially anhydrous conditions are attained. The aryl polyhalide monomers are then coupled by contacting the monomers with a catalyst mixture of a nickel compound and a ligand in the presence of a reducing metal, e.g., zinc, and an aprotic solvent under substantially anhydrous conditions to form substantially linear high molecular weight thermoplastic polymers.Type: GrantFiled: December 29, 1981Date of Patent: August 23, 1983Assignee: Union Carbide CorporationInventor: Ismael Colon
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Patent number: 4395537Abstract: A polyether of the general formula: ##STR1## in which Ar stands for a divalent organic group of the aromatic series, R stands for CH.sub.3, CH.sub.3 CH.sub.2, Cl or Br, and n is an integer of 0 to 4. It contains at least 1 mol % of unit `B`. A method of manufacturing such a polyether is also disclosed.Type: GrantFiled: August 25, 1981Date of Patent: July 26, 1983Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kazuya Yonezawa, Masahiro Asada, Miyuki Matsuura