Solid Polymer Derived From Ketone Reactant And Wherein None Of The Reactants Forming The Solid Polymer Contains An Aldehyde Group Or Is An Aldehyde-type Reactant Or Polymer Derived Therefrom Patents (Class 525/471)
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Patent number: 5739214Abstract: The present invention relates to radiation-curable coating compositions comprising(A) from 20 to 50% by weight of at least one prepolymer containing at least two ethylenically unsaturated double bonds,(B) from 20 to 60% by weight of at least one cationically curing epoxy resin,(C) from 10 to 30% by weight of at least one ketonic and/or ketone-formaldehyde resin,(D) from 5 to 40% by weight of at least one reactive diluent, and(E) from 5 to 10% by weight of a mixture of at least one cationic polymerization initiator and at least one free-radical polymerization initiator,the sum of the proportions by weight of components A to E being in each case 100% by weight.Type: GrantFiled: June 21, 1996Date of Patent: April 14, 1998Assignee: BASF Lacke + Farben, AGInventor: Stephan Schunck
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Patent number: 5731402Abstract: A process for the production of biodegradable aliphatic polyester particles by (co)polymerizing 2-oxetanone or a mixture containing at least 80% by weight of 2-oxetanone and up to 20% by weight of a cyclic ester or cyclic ether other than 2-oxetanone in the presence of a polymerization initiator supported on a carrier in which an ion polymerization initiator is supported on poly(2-oxetanone) in a liquid medium having a solubility parameter of about 15 to about 18 MPa.sup.1/2 and being capable of dissolving 2-oxetanone, and in a polymerizing apparatus having an internal surface formed of a material which is free of polarity or whose polarity is very small, to form a particulate aliphatic polyester; and a biodegradable aliphatic polyester melt-extrusion film, which comprises the biodegradable aliphatic polyester having a weight average molecular weight of 20,000 to 2,000,000, and having a water vapor transmission rate of 300 to 700 g/m.sup.2.24 hours.25 .mu.m and heat-fusing strength of 500 to 5,000 gf/15 mm.Type: GrantFiled: April 24, 1996Date of Patent: March 24, 1998Assignee: Tokuyama CorporationInventors: Haruo Nishida, Mitsuhiro Yamashita, Norikazu Hattori
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Patent number: 5712363Abstract: The present invention relates to coating compositions including a particular class of oligomeric sterically hindered polyamines as replacements for traditional blocked and unblocked polyamine crosslinkers. The use of these oligomeric sterically hindered polyamine crosslinkers resultss in a desirable pot life/cure speed relationship not generally available with traditional unblocked polyamine crosslinkers, as well as a lower VOC and often better appearance characteristics than generally available with the traditional blocked varieties.Type: GrantFiled: August 28, 1995Date of Patent: January 27, 1998Assignee: Akzo Nobel NVInventors: Arie Noomen, Thomas Mezger, Klaus Hobel, Keimpe Jan van den Berg
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Patent number: 5684117Abstract: The Comparative Tracking Index of a flame retardant polyketone blend of polyketone polymer and glass filler is improved by formulating the flame retardant as a mixture of alkaline earth metal hydroxide or carbonate and zinc compound.Type: GrantFiled: October 16, 1995Date of Patent: November 4, 1997Assignee: Shell Oil CompanyInventors: Michelle Londa, Randall Power Gingrich
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Patent number: 5677414Abstract: Cyclic acetal derivative of a resole includes the reaction product of an ortho resole compound with a carbonyl compound or a carbonyl compound derivative. The cyclic acetal derivatives of phenolic resole compounds exhibit enhanced storage stability and can be readily activated at elevated temperatures to prepare phenolic based adhesives and coatings.Type: GrantFiled: April 25, 1996Date of Patent: October 14, 1997Assignee: Lord CorporationInventors: Esther Spaltenstein, Ernest B. Troughton, Jr.
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Patent number: 5670564Abstract: Rigid-rod macromonomers, and methods for preparing such macromonomers, having a polyaromatic backbone, solubilizing side groups, and reactive end groups are provided. The macromonomers are chemically incorporated into polymer systems to provide stronger, stiffened polymers.Type: GrantFiled: June 1, 1995Date of Patent: September 23, 1997Assignee: Maxdem IncorporatedInventors: Robert R. Gagne, Matthew Louis Marrocco, III, Mark Steven Trimmer, Neil H. Hendricks
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Patent number: 5648434Abstract: Sulfonimide cure catalysts are used with aminoplast crosslinking agents and resins capable of reacting with aminoplast crosslinking agents to prepare heat curable compositions capable of crosslinking to form coatings and articles. Liquid or solid curable compositions may be prepared. Solid sulfonimide catalysts used in combination with solid glycoluril type crosslinking agents are well suited for powder coating systems containing hydroxy- and carboxy-functional resins.Type: GrantFiled: June 5, 1995Date of Patent: July 15, 1997Assignee: Cytec Technology Corp.Inventors: Jeno G. Szita, Subban Ramesh, William Jacobs, III, John Colin Brogan
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Patent number: 5648426Abstract: A method and composition for improving the impact resistance of thermoplastics is disclosed. An impact resistant thermoplastic is formed by forming a silicone containing thermosetting component, compounding it with a thermoplastic to form a silicone-thermoplastic mixture, disposing a catalyst on the mixture, and activating the catalyst while compounding the mixture with a thermoplastic. The silicone containing thermosetting component includes a first silicone compound containing hydride groups and a second silicone compound containing unsaturated groups. Activating the catalyst, preferably a platinum complex, causes the thermosetting component to cure, creating a silicone-thermoplastic semi-interpenetrating polymer network having higher impact resistance than the unmodified thermoplastic.Type: GrantFiled: May 5, 1995Date of Patent: July 15, 1997Assignee: Huls America Inc.Inventor: Mikhail Zolotnitsky
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Patent number: 5641501Abstract: Absorbable biocompatible polymer blends useful to manufacture medical devices. The blends have a first major phase including polymers such as poly(lactide homopolymers and poly(lactide-co-glycolide) copolymers and combination thereof. The blends have a second minor phase include copolymers of poly(.epsilon.-caprolactone-co-p-dioxanone).Type: GrantFiled: October 11, 1994Date of Patent: June 24, 1997Assignee: Ethicon, Inc.Inventors: Kevin Cooper, Steven C. Arnold, Angelo Scopelianos
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Patent number: 5641856Abstract: A re-moldable cross-linked resin comprising polymer chains which are connected to one another via Diels-Alder adducts obtainable from a dienophile and a diene, the latter being a 2,5-dialkyl substituted furan.Type: GrantFiled: November 15, 1995Date of Patent: June 24, 1997Assignee: Shell Oil CompanyInventor: Jan Hermen Hendrik Meurs
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Patent number: 5618870Abstract: It is herein disclosed a polymer blend having and exhibiting excellent tribological properties comprising a major amount of polyketone polymers and a minor amount of one or more silicone oil. The blend also has and exhibits improved lubricity and has a low DCOF of from about 0.3-0.4. The blend is particularly useful in the manufacture of articles used in applications where surfaces are in contact during motion.Type: GrantFiled: March 23, 1995Date of Patent: April 8, 1997Assignee: Shell Oil CompanyInventors: John E. Flood, John W. Kelley, Davis R. Roane, John M. Clasby
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Patent number: 5618889Abstract: Block copolymers represented by the formula ##STR1## are formed by contacting an ester group containing poly(aryl ether ketone) composed of the recurring units ##STR2## with a liquid crystalline polyester represented by the formula ##STR3## in which R.sub.1, R.sub.2 X.sub.2, X, Z, E.sup.1, E.sup.2 E.sup.5, w, x, y, z a, b and n each represent specified groups or values under conditions such that a transesterification reaction will occur.Type: GrantFiled: May 15, 1991Date of Patent: April 8, 1997Assignee: Bayer CorporationInventors: Robert J. Kumpf, Douglas A. Wicks, Dittmar K. Nerger, Harald Pielartzik, Rolf Wehrmann
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Patent number: 5565527Abstract: Polymeric, catalytically active compounds comprising polymer chains to which imidazole groups are linked terminally or laterally are used as catalysts for the dimerization of isocyanates.Type: GrantFiled: June 1, 1995Date of Patent: October 15, 1996Assignee: BASF AktiengesellschaftInventors: Bernd Bruchmann, Roland Minges, Christian Schade, Konrad Stiefenhoefer
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Patent number: 5561202Abstract: In order to produce a polymer electrolyte membrane from sulfonated, aromatic polyether ketone, an aromatic polyether ketone of the formula (I) ##STR1## in which Ar is a phenylene ring having p- and/or m-bonds,Ar' is a phenylene, naphthylene, biphenylene, anthrylene or another divalent aromatic unit,X, N and M, independently of one another are 0 or 1,Y is 0, 1, 2 or 3,P is 1, 2, 3 or 4,is sulfonated and the sulfonic acid is isolated. At least 5% of the sulfonic groups in the sulfonic acid are converted into sulfonyl chloride groups, and these are reacted with an amine containing at least one crosslinkable substituent or a further functional group, and unreacted sulfonyl chloride groups are subsequently hydrolyzed. The resultant aromatic sulfonamide is isolated and dissolved in an organic solvent, the solution is converted into a film, and the crosslinkable substituents in the film are then crosslinked.In specific cases, the crosslinkable substituents can be omitted.Type: GrantFiled: May 19, 1995Date of Patent: October 1, 1996Assignee: Hoechst AktiengesellschaftInventors: Freddy Helmer-Metzmann, Frank Osan, Arnold Schneller, Helmut Ritter, Konstantin Ledjeff, Roland Nolte, Ralf Thorwirth
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Patent number: 5539017Abstract: The use of a thermally curable composition as dental material or constituent of a dental material is described, which composition contains one or more .beta.-dicarbonyl compounds and one or more .alpha.,.beta.-unsaturated carboxylic acid esters, the curing of the composition taking place in the presence of a catalyst base.Type: GrantFiled: January 23, 1995Date of Patent: July 23, 1996Assignee: Ivoclar AGInventors: Volker Rheinberger, Norbert Moszner
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Patent number: 5536784Abstract: This invention relates to improved water-based polymeric dispersions having suitability for coatings and other applications which are based upon polymers having a plurality of acetoacetate functional groups and a crosslinkable component comprising a plurality of aromatic aldimine. The basic acetoacetate/benzaldimine containing system comprises an aqueous polymeric dispersion wherein the polymer has a plurality of acetoacetate groups and an effective amount of a curing agent having a plurality of benzaldimine functional groups. The improvement in providing for water-stable polymeric dispersions suitable for coatings and other applications comprises an aqueous dispersion comprising a polymeric component preferably derived from a plurality of polymerizable ethylenically unsaturated monomer units having pendant araldimine or heterocyclic aldimine functionality. Acetoacetate containing monomers generally are used in forming the polymer and a preferred monomer acetoacetoxyethymethacrylate.Type: GrantFiled: October 6, 1994Date of Patent: July 16, 1996Assignee: Air Products and Chemicals, Inc.Inventors: Chung-Ling Mao, Ning Chen, Chao-Fong Tien
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Patent number: 5486326Abstract: A polyketone is contacted with an organic peroxyacid in a reactive, oxidization, slurry process to produce a polyester polymer.Type: GrantFiled: May 17, 1995Date of Patent: January 23, 1996Assignee: Exxon Chemical Patents Inc.Inventor: Palanisamy Arjunan
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Patent number: 5484876Abstract: Disclosed herein are an aromatic thioether ketone/thioether sulfone random copolymer comprising phenylene thioether ketone recurring units (I) and phenylene thioether sulfone recurring units (II), (a) the compositional ratio (I:II) of the recurring units (I) to the recurring units (II) ranging from 98:2 to 65:35, (b) the solution viscosity (.eta..sub.inh) being at least 0.3 dl/g, (c) the melt crystallization time (.tau.) being at least 3 minutes, (d) the melting point (Tm) being 300.degree.-350.degree. C., (e) the glass transition temperature being at least 125.degree. C., (f) the retention (400.degree. C./20 min) of melt crystallization enthalpy (.DELTA.Hmc) being at least 60%, and (g) the average particle size being at least 0.1 mm, and the production process thereof.Type: GrantFiled: July 29, 1994Date of Patent: January 16, 1996Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yukichira Kawakami, Zenya Shiiki
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Patent number: 5466780Abstract: A polyketone is contacted with an organic peroxyacid in a reactive, oxidization, slurry process to produce a polyester polymer.Type: GrantFiled: March 30, 1994Date of Patent: November 14, 1995Assignee: Exxon Chemical Patents Inc.Inventor: Palanisamy Arjunan
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Patent number: 5449775Abstract: Polymeric, catalytically active compounds comprising polymer chains to which imidazole groups are linked terminally or laterally are used as catalysts for the dimerization of isocyanates.Type: GrantFiled: May 10, 1993Date of Patent: September 12, 1995Assignee: BASF AktiengesellschaftInventors: Bernd Bruchmann, Roland Minges, Christian Schade, Konrad Stiefenhoefer
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Patent number: 5438082Abstract: In order to produce a polymer electrolyte membrane from sulfonated, aromatic polyether ketone, an aromatic polyether ketone of the formula (I) ##STR1## in which Ar is a phenylene ring having p- and/or m-bonds,Ar' is a phenylene, naphthylene, biphenylene, anthrylene or another divalent aromatic unit,X, N and M, independently of one another are 0 or 1,Y is 0, 1, 2 or 3,P is 1, 2, 3 or 4,is sulfonated and the sulfonic acid is isolated. At least 5% of the sulfonic groups in the sulfonic acid are converted into sulfonyl chloride groups, and these are reacted with an amine containing at least one crosslinkable substituent or a further functional group, and unreacted sulfonyl chloride groups are subsequently hydrolyzed. The resultant aromatic sulfonamide is isolated and dissolved in an organic solvent, the solution is converted into a film, and the crosslinkable substituents in the film are then crosslinked.In specific cases, the crosslinkable substituents can be omitted.Type: GrantFiled: June 10, 1993Date of Patent: August 1, 1995Assignee: Hoechst AktiengesellschaftInventors: Freddy Helmer-Metzmann, Frank Osan, Arnold Schneller, Helmut Ritter, Konstantin Ledjeff, Roland Nolte, Ralf Thorwirth
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Patent number: 5426148Abstract: A fast-curing sealant composition is made from generally liquid oligomers and has good tensile strength, one hundred percent modulus, Shore-A Hardness, and good insensitivity to water. One part of the sealant composition is generally a polyester or polyether oligomer having acetoacetate end groups or functionalities thereon, whereas the second part is also generally a polyester of polyether oligomer generally containing primary amine end groups or functions. The oligomers are generally of a low molecular weight, as from about 500 to about 10,000, and are modified by compounding with various additives such as carbon black, antioxidants, ultraviolet light inhibitors, and the like. Polyfunctional acetoacetate-terminated molecules having 3 or more functional end groups or polyfunctional primary amine-terminated molecules having 3 or more functional end groups serve to increase the crosslink density and modulus of the compositions. The sealant can be used as a coating or as a caulking type compound.Type: GrantFiled: April 28, 1994Date of Patent: June 20, 1995Assignee: Tremco, Inc.Inventor: Harold A. Tucker
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Patent number: 5424136Abstract: Useful materials are formed by polymerizing a 1,3 dioxolan-4-one monomer. The 1,3 dioxolan-4-one monomer can be copolymerized with a variety of comonomers, including glycolide, lactide, dioxanone, trimethylene carbonate and caprolactone.Type: GrantFiled: June 24, 1992Date of Patent: June 13, 1995Assignee: United States Surgical CorporationInventor: Matthew E. Hermes
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Patent number: 5408014Abstract: Disclosed herein are an aromatic thioether ketone/thioether sulfone random copolymer comprising phenylene thioether ketone recurring units (I) and phenylene thioether sulfone recurring units (II), (a) the compositional ratio (I:II) of the recurring units (I) to the recurring units (II) ranging from 98:2 to 65:35, (b) the solution viscosity (.eta..sub.inh) being at least 0.3 dl/g, (c) the melt crystallization time (.tau.) being at least 3 minutes, (d) the melting point (Tm) being 300.degree.-350.degree. C., (e) the glass transition temperature being at least 125.degree. C., (f) the retention (400.degree. C./20 min) of melt crystallization enthalpy (.DELTA.Hmc) being at least 60%, and (g) the average particle size being at least 0.1 mm, and the production process thereof.Type: GrantFiled: July 29, 1994Date of Patent: April 18, 1995Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yukichika Kawakami, Zenya Shiiki
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Patent number: 5391646Abstract: Disclosed herein are a poly(arylene thioether-ketone) copolymer comprising (A) at least one poly(arylene thioether-ketone) segment having predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other and (B) at least one poly(arylene thioether) segment having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) segment (B) to the total amount of the poly(arylene thioether-ketone) segment (A) ranging from 0.05 to 5 by weight, (b) the number-average polymerization degree of the poly(arylene thioether) segment (B) being higher than 1 but lower than 10, and (c) said copolymer having a melt viscosity of 2-100,000 poises as measured at 350.degree. C. and a shear rate of 1,200/sec as well as a production process of the poly(arylene thioether-ketone) copolymer.Type: GrantFiled: May 20, 1993Date of Patent: February 21, 1995Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yoshikatsu Satake, Yoshiyuki Inaguma, Yasuhiro Suzuki
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Patent number: 5391645Abstract: Disclosed herein are a poly(arylene thioether-ketone) copolymer comprising (A) at least one poly(arylene thioether-ketone) segment having predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other, and (B) at least one poly(arylene thioether) segment having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) segment (B) to the total amount of the poly(arylene thioether-ketone) segment (A) ranging from 0.05 to 5 by weight, (b) the number-average polymerization degree of the poly(arylene thioether) segment (B) being higher than 1 but lower than 10, and (c) said copolymer having a melt viscosity of 2-100,000 poises as measured at 350.degree. C. and a shear rate of 1,200/sec as well as a production process of the poly(arylene thioether-ketone) copolymer.Type: GrantFiled: May 20, 1993Date of Patent: February 21, 1995Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yoshikatsu Satake, Yoshiyuki Inaguma, Yasuhiro Suzuki
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Patent number: 5384377Abstract: This invention provides certain blue substituted 1,4-bis(2,6-dialkylanilino) anthraquinones in combination with selected red anthraquinone and anthrapyridone (3H-dibenz[f,ij]isoquinoline-2,7-dione) compounds which provide a toner system useful in imparting a desirable neutral to slightly blue hue to polyesters having a yellow appearance. The thermally stable colored compounds can have polyester reactive groups and are preferably incorporated into the polyester polymer structure during polymerization.Type: GrantFiled: February 16, 1994Date of Patent: January 24, 1995Assignee: Eastman Chemical CompanyInventors: Max A. Weaver, Wayne P. Pruett, Gerry Rhodes, Samuel D. Hilbert, William W. Parham
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Patent number: 5378772Abstract: Disclosed herein are a poly(arylene thioether) block copolymer alternately comprising (A) at least one poly(arylene thioetherketoneketone) block having predominant recurring units of the formula ##STR1## and (B) at least one poly(arylene thioether) block having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) block (B) to the total amount of the poly(arylene thioetherketoneketone) block (A) being within a range of 0.1-9 by weight, (B) the weight average molecular weight of the poly(arylene thioether) block (B) being at least 1,000, and (c) said block copolymer having a melt viscosity of 2-100,000 poises as measured at 380.degree. C. and a shear rate of 1,200/sec as well as a production process of the block copolymer.Type: GrantFiled: March 30, 1993Date of Patent: January 3, 1995Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yoshikatsu Satake, Yoshiyuki Inaguma, Shinji Yamamoto
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Patent number: 5378771Abstract: Disclosed herein are a poly(arylene thioether) block copolymer alternately comprising (A) at least one poly(arylene thioetherketoneketone) block having predominant recurring units of the formula ##STR1## and (B) at least one poly(arylene thioether) block having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) block (B) to the total amount of the poly(arylene thioetherketoneketone) block (A) being within a range of 0.1-9 by weight, (B) the weight average molecular weight of the poly(arylene thioether) block (B) being at least 1,000, and (c) said block copolymer having a melt viscosity of 2-100,000 poises as measured at 380.degree. C. and a shear rate of 1,200/sec as well as a production process of the block copolymer.Type: GrantFiled: March 30, 1993Date of Patent: January 3, 1995Assignee: Kureha Kagaku Kogyo K.K.K.Inventors: Yoshikatsu Satake, Yoshiyuki Inaguma, Shinji Yamamoto
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Patent number: 5378770Abstract: Disclosed herein is a poly(arylene thioether-ketone-ketone) copolymer comprising (A) at least one poly(arylene thioether-ketone-ketone) segment having predominant recurring units of the formula ##STR1## and (B) at least one poly(arylene thioether) segment having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) segment (B) to the total amount of the poly(arylene thioether-ketone-ketone) segment (A) ranging from 0.1 to 9 by weight, (b) the weight-average molecular weight of the poly(arylene thioether) segment (B) being at least 200 but lower than 1000, and (c) said copolymer having a melt viscosity of 2-100,000 poises as measured at 380.degree. C. and a shear rate of 1,200/sec as well as a production process of the poly(arylene thioether-ketone-ketone) copolymer.Type: GrantFiled: March 23, 1993Date of Patent: January 3, 1995Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yoshikatsu Satake, Yoshiyuki Inaguma, Jiro Masuko
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Patent number: 5374692Abstract: Disclosed herein is a poly(arylene thioether-ketone-ketone) copolymer comprising (A) at least one poly(arylene thioether-ketone-ketone) segment having predominant recurring units of the formula ##STR1## (B) at least one poly(arylene thioether) segment having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) segment (B) to the total amount of the poly(arylene thioether-ketone-ketone) segment (A) ranging from 0.1 to 9 by weight, (b) the weight-average molecular weight of the poly(arylene thioether) segment (B) being at least 200 but lower than 1000, and (c) said copolymer having a melt viscosity of 2-100,000 poises as measured at 380.degree. C. and a shear rate of 1,200/sec as well as a production process of the poly(arylene thioether-ketone-ketone) copolymer.Type: GrantFiled: March 23, 1993Date of Patent: December 20, 1994Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yoshikatsu Satake, Yoshiyuki Inaguma, Jiro Masuko
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Patent number: 5372864Abstract: This invention provides certain blue substituted 1,4-bis(2,6-dialkylanilino) anthraquinones in combination with selected red anthraquinone and anthrapyridone (3H-dibenz[f,ij] isoquinoline-2,7-dione) compounds which provide a toner system useful in imparting a desirable neutral to slightly blue hue to polyesters having a yellow appearance. The thermally stable colored compounds can have polyester reactive groups and are preferably incorporated into the polyester polymer structure during polymerization.Type: GrantFiled: September 3, 1993Date of Patent: December 13, 1994Assignee: Eastman Chemical CompanyInventors: Max A. Weaver, Wayne P. Pruett, Gerry Rhodes, Samuel D. Hilbert, William W. Parham
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Patent number: 5369191Abstract: Disclosed herein are an aromatic thioether ketone/thioether sulfone random copolymer comprising phenylene thioether ketone recurring units (I) and phenylene thioether sulfone recurring units (II), (a) the compositional ratio (I:II) of the recurring units (I) to the recurring units (II) ranging from 98:2 to 65:35, (b) the solution viscosity (.eta..sub.inh) being at least 0.3 dl/g, (c) the melt crystallization time (f) being at least 3 minutes, (d) the melting point (Tm) being 300.degree.-350.degree. C., (e) the glass transition temperature being at least 125.degree. C., (f) the retention (400.degree. C./20 min) of melt crystallization enthalpy (.DELTA.Hmc) being at least 60%, and (g) the average particle size being at least 0.1 mm, and the production process thereof.Type: GrantFiled: January 12, 1993Date of Patent: November 29, 1994Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yukichika Kawakami, Zenya Shiiki
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Patent number: 5346968Abstract: Oligosiloxanes of the formula I ##STR1## where R.sup.1 is a C.sub.1 -C.sub.4 -alkyl andn is from 2 to 50,are chiefly used for fabricating fiber-reinforced composite and ceramic materials.Type: GrantFiled: December 1, 1993Date of Patent: September 13, 1994Assignee: BASF AktiengesellschaftInventor: Karl-Heinz Haas
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Patent number: 5342664Abstract: Polymer alloys which comprise a) 60 to 98 percent by weight of at least one partly crystalline poly(aryl ether ketone) having a limiting viscosity number of 0.2 to 0.5 dl/g and b) 40 to 2 percent by weight of at least one amorphous poly(aryl ether ketone) having a limiting viscosity number of 0.2 to 3.0 dl/g, the weights being based in each case on the total amount of components (a) plus (b) in the alloy, and which can be used for the production of shaped articles or as a matrix material for composites.Type: GrantFiled: April 30, 1993Date of Patent: August 30, 1994Assignee: Hoechst AktiengesellschaftInventors: Hans-Otto Drotloff, Otto Herrmann-Schonherr
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Patent number: 5322907Abstract: The invention relates to the use of polyglycidyl compounds as hardeners in powder coating compositions based on polyester resins which react with epoxy groups, which compounds are polyglycidyl esters of formula (I) or (II) ##STR1## wherein in formula (I) R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently of one another hydrogen, C.sub.1 -C.sub.4 alkyl or radicals of formula (III) ##STR2## wherein A is a polymethylene group of 2 to 4 carbon atoms, and R.sub.5 and R.sub.6 are each independently of each other hydrogen, C.sub.1 -C.sub.4 alkyl or radicals of formula (III) or, when taken together, are an unsubstituted or a C.sub.1 -C.sub.4 alkyl-substituted methylene or polymethylene group of 2 to 7 carbon atoms, but with the proviso that at least two of the substituents R.sub.1 to R.sub.6 are radicals of formula (III),and, in formula (II)n is an integer from 2 to 6,R.sub.Type: GrantFiled: March 25, 1992Date of Patent: June 21, 1994Assignee: Ciba-Geigy CorporationInventors: Jacques-Alain Cotting, Philippe Gottis
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Patent number: 5306789Abstract: Amorphous polymers which are soluble in organic solvents and can thus be cast as films have high glass transition temperatures which make them suitable for numerous high temperature applications; the polymers comprise ortho aromatic polyketones, polyphthalazines and polyisoquinolines, the polyphthalazines and polyisoquinolines being readily formed from the polyketones.Type: GrantFiled: October 31, 1990Date of Patent: April 26, 1994Inventors: Allan S. Hay, Rina Singh
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Patent number: 5298573Abstract: A process is provided for preparing poly(arylene sulfide sulfone)/poly(arylene sulfide ketone) block copolymers comprising: contacting poly(arylene sulfide sulfone) prepolymer, at least one dihalobenzophenone, a sulfur source, and a polar organic compound under polymerization conditions.Type: GrantFiled: November 13, 1992Date of Patent: March 29, 1994Assignee: Phillips Petroleum CompanyInventor: Dwayne R. Senn
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Patent number: 5298574Abstract: A process is provided for preparing poly(arylene sulfide ketone)/poly(arylene sulfide sulfone) block copolymers comprising: contacting poly(arylene sulfide ketone) prepolymer, at least one dihaloaromatic sulfone, a sulfur source, and a polar organic compound under polymerization conditions. The polymers thus produced exhibit crystalline properties and an increased glass transition temperature.Type: GrantFiled: November 13, 1992Date of Patent: March 29, 1994Assignee: Phillips Petroleum CompanyInventor: Dwayne R. Senn
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Patent number: 5295985Abstract: The invention provides novel polyesters, fibers and films, nonwovens from the fibers and disposable products of the polyesters such as diapers. The products are degradable under the conditions typically existing in waste compositing processes, have low ingredient costs and yet provide strength and toughness properties adequate for end uses such as in disposable diapers. The polyesters are based upon polyester ingredients, such as polyethylene terephthalate, copolymerized with an alkali metal or alkaline earth metal 4-sulfophthalic acid derivative, and other ingredients, such as polyethylene ether glycols and/or non-aromatic diacids, such as adipic and glutaric acids.Type: GrantFiled: November 6, 1992Date of Patent: March 22, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: James A. Romesser, Hyunkook Shin, Raymond F. Tietz
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Patent number: 5288822Abstract: Polyketone polymers can be stabilized and rendered more processable by the inclusion of a liquid crystalline diglycidyl compound, e.g., the diglycidyl ether of a 1,4-bis(p-hydroxybenzoyloxy) cyclohydrocarbon.Type: GrantFiled: January 14, 1992Date of Patent: February 22, 1994Assignee: Akzo nvInventors: Jagadish C. Goswami, Ki-Soo Kim
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Patent number: 5288815Abstract: Disclosed herein are a poly(arylene thioether-ketone) copolymer comprising (A) at least one poly(arylene thioether-ketone) segment having predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other and (B) at least one poly(arylene thioether) segment having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) segment (B) to the total amount of the poly(arylene thioether-ketone) segment (A) ranging from 0.05 to 5 by weight, (b) the number-average polymerization degree of the poly(arylene thioether) segment (B) being higher than 1 but lower than 10, and (c) said copolymer having a melt viscosity of 2-100,000 poises as measured at 350.degree. C. and a shear rate of 1,200/sec as well as a production process of the poly(arylene thioether-ketone) copolymer.Type: GrantFiled: April 18, 1991Date of Patent: February 22, 1994Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yoshikatsu Satake, Yoshiyuki Inaguma, Yasuhiro Suzuki
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Patent number: 5286809Abstract: This invention relates to thermoplastic moulding compounds based on polyamides and/or polyesters and special functionally modified polyarylene sulphides and optionally conventional additives and to their preparation and their use.Type: GrantFiled: December 9, 1991Date of Patent: February 15, 1994Assignee: Bayer AGInventors: Hans-Detlef Heinz, Burkhard Kohler
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Patent number: 5286814Abstract: A heat-resistant stretched film is obtained by stretching a resin composition comprising 100 parts by weight of a poly(arylene sulfide) of a substantially linear structure and 5 to less than 100 parts by weight of a melt-stable poly(arylene thioether-ketone). The poly(arylene sulfide) has a melt viscosity of at least 1,000 poises as measured at 310.degree. C. and a shear rate of 200 sec.sup.-1. The poly(arylene thioether-ketone) has predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- groups are bonded in the para position to each other through the benzene ring, and has the following physical properties (a)-(c):(a) a melting point, Tm being 310.degree.-380.degree. C.;(b) a melt crystallization temperature, Tmc (420.degree. C./10 min) being at least 210.degree. C. and a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) being at least 10 J/g; and(c) a reduced viscosity being 0.3-2 dl/g at 25.degree. C. and a polymer concentration of 0.Type: GrantFiled: April 26, 1991Date of Patent: February 15, 1994Assignee: Kureha Kagaku Kogyo K. K.Inventors: Toshiya Mizuno, Yoshikichi Teramoto, Takeshi Saito, Juichi Wakabayashi, Yoshikatsu Satake, Ken Kashiwadate, Takayuki Katto
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Patent number: 5286413Abstract: A polymer mixture, including at least one conductive polymer which has been dedoped to provide at least one dedoped conductive polymer; and at least one polar polymer. The polymer mixture has outstanding dielectric properties so that the polymer mixture is useful for producing electronic, optoelectrical, electrical and electromechanical devices.Type: GrantFiled: August 20, 1991Date of Patent: February 15, 1994Assignee: Solvay & Cie (Societe Anonyme)Inventors: Etienne Hannecart, Claude Franquinet
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Patent number: 5274070Abstract: The present invention relates to a magnetically active organometallic Schiff base polymer having a molecular weight of between about 4,000 and 50,000 daltons. In an additional aspect, the present invention relates to a process for the preparation of magnetically active organometallic polymer having a molecular weight of between about 4,000 and 50,000 daltons, wherein the polymer comprises a multiplicity of Schiff base tridentate chelating groups having the capacity to combine with the iron (II) or iron (III) ion of an organic salt, which process comprises:(a) combining at least one organic diamine including hydrazine with at least one organic diketone or dialdehyde in an anhydrous dipolar aprotic solvent for a time sufficient to produce to polymer at a temperature of between about 50.degree. C. and 200.degree. C.Type: GrantFiled: May 10, 1991Date of Patent: December 28, 1993Assignee: Osaka Gas Company, Ltd.Inventors: David B. Cotts, Louisa M. Brodrecht, Robert C. Bening, Jr.
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Patent number: 5258450Abstract: A polyarylene sulfide resin composition obtainable by mixing and reacting(A) 99 to 60 parts by weight of a polyarylene sulfide resin,(B) 1 to 40 parts by weight of a polyorganosiloxane rubber, in which 0.1 to 20 wt. % of a siloxane compound represented by the following formula (I):HS(CH.sub.2).sub.p --SiR.sub.n (OR').sub.3-n (I)wherein R represents a methyl, ethyl, propyl or phenyl group, R' represents a methyl or ethyl group, n represents an integer of 0, 1 or 2, and p represents an integer of 1 to 6, are copolymerized, having an average particle size of 0.1 to 0.5 .mu.m and a degree of swelling of 3 to 50 measured by immersing in toluene, or a polyorganosiloxane graft copolymer prepared by graft-polymerizing a monomer comprising at least one of an unsaturated carboxylic acid and its anhydride to a polyorganosiloxane rubber having an average particle size of 0.1 to 0.5 .mu.m and a degree of swelling of 3 to 50 measured by immersing in toluene,(C) 0.Type: GrantFiled: January 24, 1990Date of Patent: November 2, 1993Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Akira Nakata, Naoki Yamamoto, Hiroshi Mori, Takuya Ueno
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Patent number: 5250636Abstract: Disclosed herein is a poly(arylene thioether-ketone-ketone) copolymer comprising (A) at least one poly(arylene thioether-ketone-ketone) segment having predominant recurring units of the formula ##STR1## and (B) at least one poly(arylene thioether) segment having predominant recurring units of the formula ##STR2## (a) the ratio of the total amount of the poly(arylene thioether) segment (B) to the total amount of the poly(arylene thioether-ketone-ketone) segment (A) ranging from 0.1 to 9 by weight, (b) the weight-average molecular weight of the poly(arylene thioether) segment (B) being at least 200 but lower than 1000, and (c) said copolymer having a melt viscosity of 2-100,000 poises as measured at 380.degree. C. and a shear rate of 1,200/sec as well as a production process of the poly(arylene thioether-ketone-ketone) copolymer.Type: GrantFiled: April 18, 1991Date of Patent: October 5, 1993Assignee: Kureha Kagaku Kogyo K.K.Inventors: Yoshikatsu Satake, Yoshiyuki Inaguma, Jiro Masuko
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Patent number: 5248550Abstract: Gel coating of thermoplastic particles, such as polyimide particles, with a polyketone or polyvinyl alcohol gel, and applying the gel coated particles to reinforcement, e.g. carbon, fibers to form a pre-preg. Such gel coated thermoplastic particles can be mixed with a thermosetting resin to form a pre-preg, which can be cured at elevated temperatures to form a composite having damage tolerance characteristics. The gel coating is applied to the thermoplastic particles by contacting such particles with a polymerizable material such as acetone in a weakly acidic solution to cause the acetone to undergo tautomerism, and in the presence of a polymerization promoter or catalyst, preferably certain anionic surfactants such as sulfated ammonium salts, to convert the tautomer to polyacetone gel of low molecular weight, which coats or encapsulates the thermoplastic particles.Type: GrantFiled: March 12, 1991Date of Patent: September 28, 1993Assignee: Lockheed CorporationInventors: Russell L. Turpin, Anthony L. Green
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Patent number: 5232630Abstract: The polymers are prepared by using the new intermediate product which forms a polymeric precursor, and which is converted into the desired heterocyclic polymer by ring closure.Type: GrantFiled: April 17, 1989Date of Patent: August 3, 1993Assignee: U.S. Philips CorporationInventors: Kornelis L. Pouwer, Ton R. Vries, Egbert W. Meijer, Edsko E. Havinga, Hans Wijnberg