Material Contains A Metal Atom Patents (Class 528/217)
  • Patent number: 9257212
    Abstract: The invention provides a dielectric material with low dielectric loss. The dielectric material comprises (i) 40˜80 parts by weight of polyphenylene ether resin having a Mw of 1000˜7000, a Mn of 1000˜4000 and Mw/Mn=1.0˜1.8; (ii) 5˜30 parts by weight of bismaleimide resins; and (iii) 5˜30 parts by weight of polymer additives, wherein the dielectric material has Dk of 3.75˜4.0 and Df of 0.0025˜0.0045. The dielectric material is suitably used in prepregs and insulation layers of a circuit board, because it has high Tg, low thermal expansion coefficient, low moisture absorption and excellent dielectric properties such as Dk and Df.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 9, 2016
    Assignee: ITEQ CORPORATION
    Inventors: Meng-Song Yin, Li-Chun Chen
  • Patent number: 9156944
    Abstract: A process for producing polyphenylene ether involves to keep a combustible solvent at a gaseous concentration below the minimums of explosion, to keep oxygen gas supplied at a gaseous concentration below the limiting oxygen concentration (LOC) of the solvent, and to make use of a reactor having a rotary-sealed mixer sealed with magnetic rotary feedthroughs to prevent static electricity generated, and then to improve safety and yield thereof.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: October 13, 2015
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Dein-Run Fung, Jung-Jen Chuang, Yi-Cheng Li, Zhang-Jian Huang
  • Publication number: 20120309927
    Abstract: Polyarylene ether is polymerized using a dissolving agent including anisole, wherein the polyarylene ether includes about 1 to about 3,000 ppm of anisole.
    Type: Application
    Filed: December 13, 2011
    Publication date: December 6, 2012
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Yong Tae KIM, Jin Kyu KIM, Bok Nam JANG, Joong In KIM, Young Jun KIM, Ji Heung KIM, Chang Jae LEE
  • Patent number: 8048979
    Abstract: The present invention involves the design of a radiation curable organic pre polymer resin material based on urethane acrylic linkage synthesized from the natural renewable resource cardanol or a derivative thereof, for coating application. These new molecules have a faster and better curing rate compared to the starting renewable resource—cardanol. This is brought about by the hydrogen bonding of the urethane linkage which leads to a pre organization of the molecules in such a way as to bring the cross linkable double bonds closer to each other. The present invention also involves a UV curable formulation of the above mentioned resins along with 2-10 parts by weight of a photopolymerization initiator. The resin, either in a formulation or alone turns into a cross linked film upon photopolymerization in presence of photoinitiator under a UV curable radiation source like a mercury vapor pressure lamp.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: November 1, 2011
    Assignee: Council of Scientific and Industrial Research
    Inventors: Asha Syamakumari, Chennakkattu Krishna Sadasivan Pillai
  • Patent number: 7666974
    Abstract: Disclosed is a method for production of polyphenylene by means of polymerization of phenols. The method comprises using hydroquinone as a phenol, which is predissolved in water or in alcoholic solution, adding hydrogen peroxide in the presence of transition metals aquo-ions, and controlling temperature during polymerization keeping it not higher than the boiling point, and controlling pH in the range of 2-7. In on example embodiment, Cr, Mn, Fe, Cu, Ni, Co, Zn aquo-ions or a combination thereof may be used as transition metal aquo-ions.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: February 23, 2010
    Inventors: Andrei Leonidovich Zagorsky, Dmitry Kirillovich Toropov
  • Patent number: 7649075
    Abstract: A process for preparing polyphenylene ether by oxidizing phenols using water as a solvent, enabling polyphenylene ether to be prepared with only a small amount of oxidizer, while making it possible to reuse a solvent after reaction repeatedly. Water is used as the solvent. Phenols are oxidized under the presence of a water-soluble metal complex catalyst. For the water-soluble metal complex catalyst, it is preferable to use the one whose central metal is copper or manganese, having an amine multidentate ligand.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: January 19, 2010
    Assignee: Waseda University
    Inventors: Hiroyuki Nishide, Kei Saito
  • Publication number: 20080033141
    Abstract: A method of preparing a capped poly(arylene ether) is described. By controlling the order of addition and rates of addition of reactants, solvent, and catalyst, problems associated with known methods are avoided. The method is particularly suitable for large-scale preparations of a capped poly(arylene ether).
    Type: Application
    Filed: August 1, 2006
    Publication date: February 7, 2008
    Inventors: Gary M. Bates, Carolyn A. Degonzague, Raymond John Gerhart, Hua Guo, Zhiqing Lin, Thomas P. Mufaie, Abhijit Namjoshi, John M. Rowe, Nitin Vaish
  • Patent number: 7282554
    Abstract: A low molecular weight polyphenylene ether having a reduced viscosity of 0.04 to 0.18 dl/g as measured at 30° C. in a 0.5 g/dl chloroform solution, and a molecular weight distribution of 1.5 to 2.5; or a low molecular weight polyphenylene ether powder comprising the low molecular weight polyphenylene ether exhibits high thermal resistance and excellent electric properties, and thus is useful as electric materials such as printed circuit board and as modifiers of other resins.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: October 16, 2007
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Akira Mitsui, Hiroaki Furukawa, Nobuyuki Ota
  • Patent number: 7205377
    Abstract: A method for preparing a poly(arylene ether) with a reduced level of powder fines is described. In one embodiment, the method comprises oxidatively coupling a monohydric phenol in the presence of a solvent and a complex metal catalyst, to produce a poly(arylene ether) resin; and then removing a portion of the solvent to produce a concentrated solution having a cloud point Tcloud. The concentrated solution is then combined with an anti-solvent to precipitate the poly(arylene ether) in the form of a precipitation mixture. The concentrated solution usually has a temperature of at least about (Tcloud?10° C.) immediately before it is combined with the anti-solvent. The precipitation mixture has a temperature of at least about (Tcloud?40° C.) after its formation. Related poly(arylene ether) copolymers are also described.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: April 17, 2007
    Assignee: General Electric Company
    Inventors: Hugo Gerard Eduard Ingelbrecht, Alexey Kruglov, Gert-Jan Schoenmakers
  • Patent number: 7196157
    Abstract: Biodegradable aliphatic thermoplastic copolyesters of the saturated-unsaturated type, utilizable for the production of several types of articles such as films, sheets, nets, expanded molded products, and the like, and process for their production.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: March 27, 2007
    Assignee: Novamont S.p.A.
    Inventors: Catia Bastioli, Tiziana Milizia
  • Patent number: 7060781
    Abstract: A 2,6-dimethylphenol composition having an m-cresol content of from 15 to 700 ppm on a weight basis has effects of drastically improving polymerization activity and particularly, improving the color tone of polyphenylene ethers. Therefore, the composition makes it possible to provide a preparation process having improved productivity, and at the same time, provide polyphenylene ethers having good quality.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: June 13, 2006
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Akira Mitsui, Osamu Shoji, Hitoshi Ota
  • Patent number: 7049388
    Abstract: A process for manufacturing an ?-dihydroxy derivative from an aryl allyl ether wherein such ?-dihydroxy derivative can be used to prepare an ?-halohydrin intermediate and an epoxy resin prepared therefrom including epoxidizing an ?-halohydrin intermediate produced from a halide substitution of an ?-dihydroxy derivative which has been obtained by a dihydroxylation reaction of an aryl allyl ether in the presence of an oxidant or in the presence of an oxidant and a catalyst.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: May 23, 2006
    Assignee: Dow Global Technologies Inc.
    Inventors: Clinton J. Boriack, Zeng K. Liao, Thomas H. Kalantar
  • Patent number: 6860966
    Abstract: A method of removing substantially all solvent from a solution containing a polyphenylene ether polymer resin with little by-product formation (less than 250 ppm) is provided. The method employs a wiped thin film evaporator with a cylindrical heating chamber operating under conditions that satisfy the relationships defined by Equations I and II. 5.3*1024RL? exp(?24123/T)/m<C??I 100?(4960AP/Tm)<C??II; Yields are maximized wherein values for feed rate (m) and percent solids (C) are selected to provide a maximum value for the output, Q, determined from the equation m*C=Q and the melt viscosity of the polyphenylene ether product is less than 50,000 centipoise at the operating temperature of the cylindrical heating chamber.
    Type: Grant
    Filed: November 12, 2001
    Date of Patent: March 1, 2005
    Assignee: General Electric
    Inventors: David Parrillo, Probjot Singh
  • Patent number: 6767970
    Abstract: PPE copolymers comprise three repeating units. The PPE copolymers are polymerized with 2,6-DMP, dialkenylamide or dialkenylamine phenol, and another phenol derivative. A resin composition having a low cross-linking temperature is also disclosed, which comprises the PPE copolymer and a free radical initiator.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: July 27, 2004
    Assignee: Industrial Technology Research Institute
    Inventors: Shin-Shin Wang, Jie-Hwa Ma, Jong-Lieh Yang, Kuo-Yuan Hsu, Li-Chung Liang
  • Patent number: 6646102
    Abstract: A process for manufacturing an &agr;-dihydroxy derivative from an aryl allyl ether wherein such &agr;-dihydroxy derivative can be used to prepare an &agr;-halohydrin intermediate and an epoxy resin prepared therefrom including epoxidizing an &agr;-halohydrin intermediate produced from a halide substitution of an &agr;-dihydroxy derivative which has been obtained by a dihydroxylation reaction of an aryl allyl ether in the presence of an oxidant or in the presence of an oxidant and a catalyst.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: November 11, 2003
    Assignee: Dow Global Technologies Inc.
    Inventors: Clinton J. Boriack, Zeng K. Liao, Thomas H. Kalantar
  • Patent number: 6521735
    Abstract: A process for producing a polyphenylene ether by oxidative polymerization of a phenol compound using a catalyst and an oxygen-containing gas, wherein said catalyst comprises a copper compound, a bromine compound, a diamine compound of formula (1) as recited in the specification, a tertiary monoamine compound and a secondary monoamine compound, and wherein said process comprises the steps of: preparing a catalyst component (P1) in a container which is under a substantially oxygen-free inert atmosphere by mixing the copper compound and the bromine compound to obtain a mixture and then mixing the mixture with the secondary monoamine compound in an amount of at least 2 times the molar amount of the copper atom; separately preparing a catalyst component (P2) by mixing the diamine compound of formula (1) and the tertiary monoamine compound together with a solvent in an oxidative polymerization vessel; adding a predetermined amount of the catalyst component (P1) to the polymerization vessel containing the catalyst c
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: February 18, 2003
    Assignees: Asahi Kasei Kabushiki Kaisha, Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akira Mitsui, Yuji Takeda
  • Patent number: 6489439
    Abstract: A process for producing a polyphenylene ether by oxidative polymerization of a phenol compound using a catalyst and an oxygen-containing gas, wherein the catalyst comprises a copper compound, a bromine compound, a diamine compound represented by the following formula (1): (wherein, R1, R2, R3 and R4 each independently represents hydrogen or a C1-6 linear or branched alkyl group with the proviso that all of them do not represent hydrogen simultaneously, and R5 represents a linear or methyl-branched C2-5 alkylene group), a tertiary monoamine compound and a secondary monoamine compound, wherein the process comprises the steps of: controlling an absolute pressure at a gaseous phase of a reaction vessel to a range of from 0.098 MPa to less than 0.392 MPa; and feeding the oxygen-containing gas to the reaction vessel, the oxygen-containing gas having an oxygen partial pressure, in terms of an absolute pressure, of from 0.0147 MPa to 0.0883 MPa.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: December 3, 2002
    Assignees: Asahi Kasei Kabushiki Kaisha, Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akira Mitsui, Yuji Takeda
  • Patent number: 6472499
    Abstract: Poly(arylene ether) resins having intrinsic viscosities greater than about 0.8 dL/g are produced in the reaction of a phenol with oxygen in the presence of an organic solvent and a metal complex catalyst, the phenol concentration being about 5 to about 15 weight percent of the sum of phenol and solvent, and the molar ratio of metal in the metal complex catalyst to the phenol being about 1:100 to about 1:200.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: October 29, 2002
    Assignee: General Electric Company
    Inventors: Adrianus J. F. M. Braat, Hugo G. E. Ingelbrecht
  • Patent number: 6469128
    Abstract: A process for producing a poly(arylene ether) resins includes oxidatively coupling a monohydric phenol in the presence of a solvent and a catalyst to form a soluble poly(arylene ether) and an insoluble poly(arylene ether), separating the soluble poly(arylene ether) and the insoluble poly(arylene ether), and recycling the soluble poly(arylene ether). The process is particularly useful for synthesizing poly(arylene ether) copolymers in which the monomer compositions of soluble and insoluble copolymers may vary.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: October 22, 2002
    Assignee: General Electric Company
    Inventors: Hua Guo, Hugo Gerard Eduard Ingelbrecht, David Parrillo, Probjot Singh
  • Patent number: 6455663
    Abstract: The invention relates to a novel process for the manufacture of functionalized polyphenylene ether resins through redistribution with a functionalized phenolic compound in the polyphenylene ether resin polymerization reaction solution without the addition of an added redistribution catalyst or promoter. The invention also relates to the functionalized polyphenylene ether resin made by the process as well as blends and articles containing the functionalized polyphenylene ether resin made by the process.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: September 24, 2002
    Assignee: General Electric Company
    Inventors: Adrianus J. F. M. Braat, Hugo G. E. Engelbrecht, Juraj Liska
  • Patent number: 6444779
    Abstract: A method of preparing a poly(arylene ether) includes oxidatively polymerizing a monohydric phenol in solution, concentrating the solution by removing a portion of the solvent to form a concentrated solution having a cloud point, Tcloud, adjusting the temperature of the concentrated solution to at least about (Tcloud−10° C.), and combining the concentrated solution with an anti-solvent to precipitate the poly (arylene ether). The method reduces the formation of undesirably fine particles in the product poly(arylene ether).
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: September 3, 2002
    Assignee: General Electric Company
    Inventors: Probjot Singh, Hugo Gerard Eduard Ingelbrecht, David Parrillo, Mukund Parthasarathy
  • Patent number: 6437085
    Abstract: The invention relates to a novel process for the manufacture of very low molecular weight polyphenylene ether resin, typically within the intrinsic viscosity range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25° C. The method preferably comprises 2,6-dimethylphenol as a monovalent phenol species. The invention also relates to the polyphenylene ether resin made by the process as well as blends and articles containing the polyphenylene ether resin made by the process.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: August 20, 2002
    Assignee: General Electric Company
    Inventors: Adrianus J. F. M. Braat, Hugh Ingelbrecht, Ruud Trion
  • Patent number: 6437084
    Abstract: A method of preparing a poly(arylene ether) includes oxidatively coupling a monohydric phenol in a reaction solution at a reaction temperature that exceeds the cloud point temperature of the reaction solution. The oxidative coupling occurs in the presence of a metal complex catalyst, and when the catalyst includes an amine ligand, the method facilitates incorporation of the amine ligand into the poly(arylene ether) resin. The amine-incorporated poly(arylene ether) resins prepared by the method are useful in the preparation of higher molecular weight poly(arylene ether) resins and compatibilized blends of poly(arylene ether) resins with other thermoplastics.
    Type: Grant
    Filed: November 12, 2001
    Date of Patent: August 20, 2002
    Assignee: General Electric Company
    Inventors: Joop Birsak, Hugo Gerard Eduard Ingelbrecht, David Parrillo, Mukund Parthasarathy, Probjot Singh
  • Patent number: 6429277
    Abstract: The invention relates to a novel process for the manufacture of very low molecular weight polyphenylene ether resin, typically within the intrinsic viscosity range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25° C. The method preferably comprises 2,6-dimethylphenol as a monovalent phenol species. The invention also relates to the polyphenylene ether resin made by the process as well as blends and articles containing the polyphenylene ether resin made by the process.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: August 6, 2002
    Assignee: General Electric
    Inventors: Adrianus J. F. M. Braat, Hugh Ingelbrecht, Ruud Trion
  • Patent number: 6417274
    Abstract: The invention relates to a novel process for preparing functionalized PPE, the process comprising oxidative coupling in a reaction solution at least one monovalent phenol species using an oxygen containing gas and a complex metal catalyst to produce a PPE; and functionalizing the PPE prior to and/or during at least one isolation step for devolatilization of the reaction solvent. The invention also relates to the polyphenylene ether resin made by the process as well as blends and articles containing the polyphenylene ether resin made by the process.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: July 9, 2002
    Assignee: General Electric Co.
    Inventors: Adrianus J. F. M. Braat, Rene de Jongh, Juraj Liska
  • Patent number: 6407200
    Abstract: A method of preparing a poly(arylene ether) includes oxidatively polymerizing a monohydric phenol in solution, concentrating the solution by removing a portion of the solvent to form a concentrated solution having a cloud point, Tcloud, and combining the concentrated solution with an anti-solvent to precipitate the poly (arylene ether), wherein the concentrated solution has a temperature of at least about (Tcloud−10° C.) immediately before it is combined with the anti-solvent. The method reduces the formation of undesirably fine particles in the product poly(arylene ether).
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: June 18, 2002
    Assignee: General Electric Company
    Inventors: Probjot Singh, Hugo Gerard Eduard Ingelbrecht, David Parrillo, Mukund Parthasarathy
  • Publication number: 20020055608
    Abstract: The invention relates to a novel process for the manufacture of very low molecular weight polyphenylene ether resin, typically within the intrinsic viscosity range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25° C. The method preferably comprises 2,6-dimethylphenol as a monovalent phenol species.
    Type: Application
    Filed: August 30, 2001
    Publication date: May 9, 2002
    Inventors: Adrianus J.F.M. Braat, Hugo Ingelbrecht, Ruud Trion
  • Publication number: 20020042494
    Abstract: The invention relates to a novel process for the manufacture of functionalized polyphenylene ether resins through redistribution with a functionalized phenolic compound in the polyphenylene ether resin polymerization reaction solution without the addition of an added redistribution catalyst or promoter.
    Type: Application
    Filed: August 30, 2001
    Publication date: April 11, 2002
    Inventors: Adrianus J.F.M. Braat, Hugo G.E. Engelbrecht, Juraj Liska
  • Publication number: 20020013446
    Abstract: A process for producing a polyphenylene ether by oxidative polymerization of a phenol compound using a catalyst and an oxygen-containing gas, wherein said catalyst comprises a copper compound, a bromine compound, a diamine compound of formula (1) as recited in the specification, a tertiary monoamine compound and a secondary monoamine compound, and wherein said process comprises the steps of: preparing a catalyst component (P1) in a container which is under a substantially oxygen-free inert atmosphere by mixing the copper compound and the bromine compound to obtain a mixture and then mixing the mixture with the secondary monoamine compound in an amount of at least 2 times the molar amount of the copper atom; separately preparing a catalyst component (P2) by mixing the diamine compound of formula (1) and the tertiary monoamine compound together with a solvent in an oxidative polymerization vessel; adding a predetermined amount of the catalyst component (P1) to the polymerization vessel containing the catalyst c
    Type: Application
    Filed: June 19, 2001
    Publication date: January 31, 2002
    Inventors: Akira Mitsui, Yuji Takeda
  • Publication number: 20020010314
    Abstract: A process for producing a polyphenylene ether by oxidative polymerization of a phenol compound using a catalyst and an oxygen-containing gas, wherein the catalyst comprises a copper compound, a bromine compound, a diamine compound represented by the following formula (1): 1
    Type: Application
    Filed: June 19, 2001
    Publication date: January 24, 2002
    Inventors: Akira Mitsui, Yuji Takeda
  • Patent number: 6307010
    Abstract: The invention relates to a novel process for the manufacture of functionalized polyphenylene ether resins through redistribution with a functionalized phenolic compound in the polyphenylene ether resin polymerization reaction solution without the addition of an added redistribution catalyst or promoter. The invention also relates to the functionalized polyphenylene ether resin made by the process as well as blends and articles containing the functionalized polyphenylene ether resin made by the process.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: October 23, 2001
    Assignee: General Electric Company
    Inventors: Adrianus J. F. M. Braat, Hugo G. E. Engelbrecht, Juraj Liska
  • Patent number: 6303748
    Abstract: The invention relates to a novel process for the manufacture of very low molecular weight polyphenylene ether resin, typically within the intrinsic viscosity range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25° C. The method preferably comprises 2,6-dimethylphenol as a monovalent phenol species. The invention also relates to the polyphenylene ether resin made by the process as well as blends and articles containing the polyphenylene ether resin made by the process.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: October 16, 2001
    Assignee: General Electric Company
    Inventors: Adrianus J. F. M. Braat, Hugh Ingelbrecht, Ruud Trion
  • Patent number: 6300461
    Abstract: The invention relates to a novel process for the manufacture of very low molecular weight polyphenylene ether resin, typically within the intrinsic viscosity range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25° C. The method preferably comprises 2,6-dimethylphenol as a monovalent phenol species. The invention also relates to the polyphenylene ether resin made by the process as well as blends and articles containing the polyphenylene ether resin made by the process.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: October 9, 2001
    Assignee: General Electric Company
    Inventors: Adrianus J. F. M. Braat, Hugh Ingelbrecht, Ruud Trion
  • Publication number: 20010000520
    Abstract: The invention relates to a novel process for the manufacture of very low molecular weight polyphenylene ether resin, typically within the intrinsic viscosity range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25° C. The method preferably comprises 2,6-dimethylphenol as a monovalent phenol species.
    Type: Application
    Filed: December 13, 2000
    Publication date: April 26, 2001
    Applicant: General Electric Co.
    Inventors: Adrianus J.F.M. Braat, Hugo Ingelbrecht, Ruud Trion
  • Patent number: 6211327
    Abstract: The invention relates to a novel process for the manufacture of very low molecular weight polyphenylene ether resin, typically within the intrinsic viscosity range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25° C. The method preferably comprises 2,6-dimethylphenol as a monovalent phenol species. The invention also relates to the polyphenylene ether resin made by the process as well as blends and articles containing the polyphenylene ether resin made by the process.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: April 3, 2001
    Assignee: General Electric Company
    Inventors: Adrianus J. F. M. Braat, Hugo Ingelbrecht, Ruud Trion
  • Patent number: 6069223
    Abstract: A process for making a crystallizable aromatic polymer comprises polycondensing difunctional monomers in the presence of a base and adding to the reaction mixture a nucleating agent. The nucleating agent comprises a nucleophilic group and a group of formula --A--X, where X is a metal cation and A is an anion. It is selected to give an increase in the peak crystallization temperature of the nucleated polymer compared to the unnucleated polymer.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: May 30, 2000
    Assignee: Victrex Manufacturing Limited
    Inventors: John Jamieson Liggat, Catherine Jane Wilde, Philip Anthony Staniland
  • Patent number: 5880249
    Abstract: A novel process for producing novel curable, liquid, hydroxyl-terminated epoxy polyether polymers by the direct polymerization of vinyl epoxy ether monomers in the presence of a strong alkali, to form a hydroxyl-terminated vinyl polyether polymer, followed by the epoxidation of the vinyl groups to form a novel curable, liquid hydroxyl-terminated epoxy polyether polymer which is stable against unintended polymerization in view of the epoxidation of the vinyl groups and is rapidly curable with the addition of conventional multifunctional curing agents.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: March 9, 1999
    Assignee: Northrop Grumman Corporation
    Inventor: Nicholas Castellucci
  • Patent number: 5789496
    Abstract: A method for the removal, separation, and concentration of cesium cations from a source solution which may contain larger concentrations of other alkali metal ions comprises bringing the source solution into contact with a polymeric resin containing poly(hydroxyarylene) ligands. The poly(hydroxyarylene) ligand portion(s) of the polymeric resins has affinity for cesium, thereby removing cesium from the source solution. The source solutions from which the cesium has been removed may then be treated or disposed of as desired and the cesium cations are then removed from the polymeric resin through contact with a much smaller volume of a receiving solution in which these cesium cations are soluble and has greater affinity for such cations than does the poly(hydroxyarylene) ligand or protonates the ligand, thereby quantitatively stripping the completed cesium cations from the ligand and recovering them in concentrated form in said receiving solution.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: August 4, 1998
    Assignee: IBC Advanced Technologies, Inc.
    Inventors: Bryon J. Tarbet, Garren Maas, Krzysztof E. Krakowiak, Ronald L. Bruening
  • Patent number: 5744125
    Abstract: Disclosed are cosmetic melanins of different colors produced by procedures involving oxidative polymerization of monomeric precursors of melanin and/or co-monomers that enhance substantivity or adherence of the melanins to the skin and hair. Also disclosed are methods for preparing cosmetic melanins and methods for using these compositions topically to produce a natural-appearing tan and to prevent damage to skin caused by UV exposure.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: April 28, 1998
    Assignee: Yale University
    Inventors: John M. Pawelek, James T. Platt
  • Patent number: 5656702
    Abstract: A method for the removal separation, and concentration of cesium cations from a source solution which may contain larger concentrations of other alkali metal ions comprises bringing the source solution into contact with a polymeric resin containing poly(hydroxyarylene) ligands. The poly(hydroxyarylene) ligand portion(s) of the polymeric resins has affinity for cesium, thereby removing cesium from the source solution. The source solutions from which the cesium has been removed may then be treated or disposed of as desired and the cesium cations are then removed from the polymeric resin through contact with a much smaller volume of a receiving solution in which these cesium cations are soluble and has greater affinity for such cations than does the poly(hydroxyarylene) ligand or protonates the ligand, thereby quantitatively stripping the complexed cesium cations from the ligand and recovering them in concentrated form in said receiving solution.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: August 12, 1997
    Assignee: IBC Advanced Technologies, Inc.
    Inventors: Bryon J. Tarbet, Garren Maas, Krzysztof E. Krakowiak, Ronald L. Bruening
  • Patent number: 5639849
    Abstract: Novel fumaronitriles and dicyanophenanthrenes, for example, bis(4-fluorophenyl)fumaronitrile and 3,6-difluoro-9,10-dicyanophenanthrene which can be produced from the fumaronitrile, produce useful homopolymers and copolymers for high temperature applications; the homopolymers and copolymers derived from the dicyanophenanthrenes can be converted to colored phthalocyanine group-containing polymers which are soluble in organic solvents and can be cast as films which may form the charge generating layer of an electrophotography device.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: June 17, 1997
    Inventor: Allan S. Hay
  • Patent number: 5629405
    Abstract: A method for making polyarylene ethers is described and the method comprises the step of polymerizing hydroxyaromatic monomers or oligomers prepared therefrom in the presence of pyridine catalysts.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: May 13, 1997
    Assignee: General Electric Company
    Inventor: Dwain M. White
  • Patent number: 5621066
    Abstract: An environmentally friendly process is provided for the preparation of poly(phenylene ether) resin by oxidatively coupling at least one monovalent phenol using an oxygen containing gas and a complex copper (I) amine catalyst as the oxidizing agent and extracting the copper catalyst with an aqueous containing solution as a copper (II)-organic acid salt, an improvement which comprises reduction and recovery of the copper (II) species as a copper (I) species for regeneration of the complex copper (I) amine catalyst.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: April 15, 1997
    Assignee: General Electric Company
    Inventor: Jilles J. H. Edema
  • Patent number: 5571873
    Abstract: A new thermoplastic homopolymer of o-cresol which is a poly(2-methylphenylene oxide) having a high molecular weight distribution is described. The polymer is prepared using a 2 and/or 6 substituted pyridine catalyst to the molecular weight distribution. The homopolymer can be blended with other thermoplastic polymers. The homopolymer is rapidly biodegraded, particularly in soil containing soil microorganisms.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 5, 1996
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Li-Xia Li, Patrick J. Oriel, Eric A. Grulke
  • Patent number: 5571887
    Abstract: A new thermoplastic homopolymer of o-cresol which is a poly(2-methylphenylene oxide) having a high molecular weight distribution is described. The polymer is prepared using a 2 and/or 6 substituted pyridine catalyst to the molecular weight distribution. The homopolymer can be blended with other thermoplastic polymers. The homopolymer is rapidly biodegraded, particularly in soil containing soil microorganisms.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: November 5, 1996
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Li-Xia Li, Patrick J. Oriel, Eric A. Grulke
  • Patent number: 5565544
    Abstract: A process for preparing a polyhydroxystyrene having a novolak type structure which comprises the step of polymerizing a mixture of carboxylic acid and at least one substituted phenyl carbinol whose formula is: ##STR1## wherein (a) R.sub.1 is selected from the group consisting of H, alkyl C.sub.1 -C.sub.20, substituted and unsubstituted phenyl, and C(O)R.sub.8 (where R.sub.8 is alkyl C.sub.1 -C.sub.20); (b) R.sub.2 is selected from the group consisting of H and alkyl C.sub.1 -C.sub.20 ; and (c) R.sub.3 -R.sub.7 are each independently selected from the group consisting of H, alkyl C.sub.1 -C.sub.20, OR.sub.9 (where R.sub.9 is H, alkyl C.sub.1 -C.sub.20, esters thereof, or substituted and unsubstituted phenyl), halogen, BZT, nitro, or amino, with the proviso that at least one of R.sub.3 -R.sub.7 is OR.sub.9, in the presence of a suitable catalyst for a sufficient period of time and under suitable conditions of temperature and pressure to form said novolak type polymer.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: October 15, 1996
    Assignee: Hoechst Celanese Corporation
    Inventor: James R. Sounik
  • Patent number: 5545832
    Abstract: Novel fumaronitriles and dicyanophenanthrenes, for example, bis(4-fluorophenyl)fumaronitrile and 3,6-difluoro-9,10-dicyanophenanthrene which can be produced from the fumaronitrile, produce useful homopolymers and copolymers for high temperature applications; the homopolgymers and copolymers derived from the dicyanophenanthrenes can be converted to coloured phthalocyanine group-containing polymers which are soluble in organic solvents and can be cast as films which may form the charge generating layer of an electrophotography device.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: August 13, 1996
    Inventor: Allan S. Hay
  • Patent number: 5459173
    Abstract: Stable thiol-ene compositions are provided which comprise a polythiol, a polyene and a stabilizer system comprising an alkenyl substituted phenolic compound having a formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently selected from the group consisting of H, OR, a C.sub.1 -C.sub.8 alkyl, substituted alkyl, alkenyl or substituted alkenyl, a C.sub.6 -C.sub.20 aryl or substituted aryl, or a cyano group; R.sup.4 is H, R, OR, halogen, COR, COOR, or SR; R.sup.5 is OH, OR, OCOR, OCOOR, OCONHR, or OTMS; R is a C.sub.1 -C.sub.6 alkyl, a cycloalkyl, or a C.sub.6 -C.sub.20 caryl or substituted aryl; x and y are 1, 2, or 3; z is 0, 1, or 2; and x+y+z=2, 3, or 4; or a formula: ##STR2## where x, y, z, w, R.sup.1 R.sup.2 R.sup.3, R.sup.4 and R.sup.5 are defined as above, except that x+y+z=2-6, and R.sup.6 is CH.sub.2, C(CH.sub.3).sub.2, O, S, or SO.sub.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: October 17, 1995
    Assignee: Loctite Corporation
    Inventors: David M. Glaser, Anthony F. Jacobine, Paul J. Grabek
  • Patent number: 5314986
    Abstract: Rubber components of a vulcanizable rubber composition are homogenized by adding to the composition, prior to vulcanization, a phenolic resin formed by reacting a bisphenol A residual resin with chlorinated C.sub.4 to C.sub.8 hydrocarbons in the presence of a Friedel-Crafts alkylation catalyst.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: May 24, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Pieter Ooms, Heinrich Schrage, Hans-Josef Buysch, Rene Loix, Hans-Joachim Graf
  • Patent number: 5266673
    Abstract: A hydroxy-substituted poly(phenylene ether) resin can be produced by copolymerizing from 1.5 to 8 mol % of a phenol compound selected from those represented by the following formulae (a), (b), (c), (d), and (e): ##STR1## and from 98.5 to 92 mol % of a phenol compound of the following formula (f): ##STR2## The hydroxy-substituted poly(phenylene ether) resin shows excellent compatibility with a polyamide, a polycarbonate, a poly(butylene terephthalate), a poly(phenylene sulfide), and is useful as a copatibilizer or a modified resin for engineering plastics.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: November 30, 1993
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Toru Tsukahara, Hiromi Nishimura, Mitsutoshi Aritomi, Yusuke Arashiro, Shinichi Yamauchi