From Phenol Reactant Patents (Class 524/611)
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Patent number: 6878781Abstract: A curable resin composition including a poly(arylene ether), an allylic monomer, and an acryloyl monomer may be formulated as a powder. The resin composition exhibits improved toughness, and it is useful in thermoset processing applications where use of powdered resins is preferred.Type: GrantFiled: March 27, 2001Date of Patent: April 12, 2005Assignee: General ElectricInventors: Kenneth Paul Zarnoch, Gary William Yeager, Hua Guo
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Patent number: 6875824Abstract: Disclosed herein is a polymer composition comprising a poly (arylene ether) resin; a polyamide resin having a weight average molecular weight greater than or equal to about 75,000 as determined by gel permeation chromatography using polystyrene standards; an impact modifier; and a flame retardant.Type: GrantFiled: June 23, 2003Date of Patent: April 5, 2005Assignee: General Electric CompanyInventor: James Ross Fishburn
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Patent number: 6852791Abstract: An anti-reflection coating-forming composition is provided. This composition includes a polymer and a solvent. The polymer has a structural unit represented by the formula (1): wherein R1 is a monovalent atom other than a hydrogen atom or a monovalent group, and n is an integer of 0-4, provided that when n is an integer of 2-4, a plural number of R1's are the same or different; R2 and R3 are each a monovalent atom or group; and X is a bivalent group. The anti-reflection coating formed from this composition has a high antireflective effect, does not generate intermixing with a resist film, and enables a good resist pattern profile excellent in resolution and precision in cooperation with a positive or negative resist.Type: GrantFiled: November 14, 2001Date of Patent: February 8, 2005Assignee: JSR CorporationInventors: Kazuo Kawaguchi, Masato Tanaka, Tsutomu Shimokawa
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Patent number: 6844392Abstract: An abradable dry powder coating (22) composition for coating onto a surface (12) for subsequent curing to form into an abradable coating, including a powder (16) formed of uncured thermoset resin with at least 15 volume percent filler, wherein the filler does not substantially melt below the cure temperature of the resin. Method for making the coating composition includes melt-mixing the thermoset resin with at least 15 volume percent of filler, cooling the resulting mass composite, and then breaking the cooled mass composite into powder particles (16). Method of coating an article with an abradable coating includes applying the dry composite powder with the filler therein onto a substrate and curing the dry powder composition, preferably by electrostatic coating. An article is also disclosed which is coated with the abradable coating.Type: GrantFiled: August 29, 2001Date of Patent: January 18, 2005Inventor: Andrew W. Suman
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Patent number: 6812276Abstract: A thermosetting composition comprises a capped poly(arylene ether), an alkenyl aromatic monomer, and an alkoxylated acryloyl monomer. The composition provides good flow properties and fast curing rates. After curing, the composition exhibits good stiffness, toughness, and heat resistance.Type: GrantFiled: July 2, 2002Date of Patent: November 2, 2004Assignee: General Electric CompanyInventor: Gary William Yeager
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Patent number: 6759458Abstract: A black thermoplastic molding composition which containing a dye combination made from nonabsorbing, non-black polymer-soluble dyes which produce a black thermoplastic molding composition which is translucent or transparent to laser light.Type: GrantFiled: August 16, 2001Date of Patent: July 6, 2004Assignee: Ticona GmbHInventor: Frank Reil
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Patent number: 6734259Abstract: A prepreg resin comprising: (a) 98 to 40% by weight based on the total weight of components (a) and (b), of a curable polyphenylene ether resin; (b) 2 to 60% by weight based on the total weight of components (a) and (b), of at least one cyanurate selected from the group consisting of triallyl isocyanurate and triallyl cyanurate; (c) a polymerization initiator comprised of a peroxide functionalized polymer, said peroxide functionalized polymer being fragmented by heat to a plurality of free radical moieties, such as t-butoxide moieties, and a relatively inert moiety having a molecular weight greater than about 1,000. The invention also encompasses a cured resin either as a coating on a substrate, without fiberglass cloth embedded, or a cured prepreg with fiberglass cloth embedded and a method of forming the same.Type: GrantFiled: October 24, 2002Date of Patent: May 11, 2004Assignee: International Business Machines CorporationInventors: Robert M. Japp, Konstantinos I. Papathomas, Cory J. Ruud
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Patent number: 6730725Abstract: The present invention relates to a polycarbonate which can be obtained by a melting method and has a viscosity-average molecular weight of 16000 to 27000, and whose loss angle &dgr; and complex viscosity &eegr;* (Pa·s) measured under the conditions of 250° C. and an angular velocity of 10 rad/s satisfy the following relation (1): 4,700≦Tan &dgr;/(&eegr;*)−0.Type: GrantFiled: April 10, 2002Date of Patent: May 4, 2004Assignee: Mitsubishi Engineering-Plastics Corp.Inventors: Tatsuya Masuki, Hiroshi Yoshioka, Takao Tayama, Masaaki Miyamoto
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Patent number: 6720406Abstract: A process for producing polymer pellets is disclosed. The process that is particular suitable for making polycarbonate pellets entails extruding a polymer melt, cooling the extrudate by contacting it with a cooling fluid and pelletizing the solidified polymer. The process is characterized in that the cooling fluid has a solids particle content of at most 10 ppm.Type: GrantFiled: April 30, 2002Date of Patent: April 13, 2004Assignees: Bayer Aktiengesellschaft, Bayer Antwerpen N.V.Inventors: Thomas Elsner, Jürgen Heuser, Christian Kords, Steffen Kühling, Paul Viroux
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Patent number: 6716933Abstract: The present invention relates to a process for working up solutions of polymers in organic solvents contaminated by alkaline constituents, using homogeneously soluble acids, especially by the introduction of an acid gas, and subsequent washing, and to the polymers so obtainable, which are distinguished by the fact that, on treatment with moist heat (sterilisation), only few defects caused by decomposition are formed, to the use thereof in the production of extrudates and molded specimen, and to the extrudates and molded specimen produced from those polymers themselves.Type: GrantFiled: July 16, 2002Date of Patent: April 6, 2004Assignee: Bayer AktiengesellschaftInventors: Wolfgang Alewelt, Wolfgang Ebert, Thomas Fritz, Dirk Jahn, Stefan Westernacher, Frank Bruynseels, Johann Rechner
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Patent number: 6689863Abstract: A polycarbonate copolymer comprising structural units derived from a cyclohexylidene bis(alkylphenol) of the formula: wherein A1 is a trisubstituted aromatic radical having the formula C6H3R2, wherein R2 is selected from the group consisting of C1-C6 alkyl radicals, and combinations comprising at least one of the foregoing radicals; a long chain alkyl-substituted bisphenol of the formula wherein A2 is a substituted or unsubstituted aromatic radical; and R1 is selected from the group consisting of C13-C22 alkyl radicals; a carbonic acid diester; and optionally at least one aromatic dihydroxy compound of the formula: HO—A3—OH, wherein A3 is selected from divalent substituted and unsubstituted aromatic radicals.Type: GrantFiled: October 8, 2002Date of Patent: February 10, 2004Assignee: General Electric CompanyInventors: Veeraraghavan Srinivasan, Rein Mollerus Faber, Prakash P. Wadgaonkar, Chilukuri Ver Avadhani, Jan Pleun Lens, Gautam Chatterjee
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Publication number: 20030149169Abstract: Epoxy resins that have one or more functional groups that impart an anionic character to the epoxy resins are prepared. The resulting anionic functionalized epoxy resins may be used to produce high solids, epoxy-based dispersions that are capable of being used as a component of a coating bath which can provide to a coating that may be applied to a surface using a variety of techniques.Type: ApplicationFiled: November 12, 2002Publication date: August 7, 2003Inventors: Brian D. Bammel, John D. McGee, Zhiqi Yang
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Patent number: 6518357Abstract: A flame retardant polycarbonate composition includes (A) at least one polycarbonate and (B) a silsesquioxane flame retardant. The flame retardant polycarbonate composition can be made by providing a polycarbonate and incorporating a flame retardant amount of a silsesquioxane into the polycarbonate. An article can be molded from the composition.Type: GrantFiled: October 4, 2000Date of Patent: February 11, 2003Assignee: General Electric CompanyInventors: Padmavathy Rajagopalan, John Robert Campbell, Larry Neil Lewis
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Publication number: 20030022986Abstract: Process for preparing a thermosetting powdered paint, comprising the stages of:Type: ApplicationFiled: July 18, 2002Publication date: January 30, 2003Inventor: Roberto Rossi
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Patent number: 6512025Abstract: A continuous process is disclosed for preparing a reactive particulate dispersion in a liquid carrier. The process comprises mixing together as a melt a resin and a crosslinker under extrusion condition at a temperature and for a time such that substantial crosslinker potential is retained between the resin and the crosslinker and thereafter dispersing the mixture whilst still molten into the liquid carrier and allowing the molten dispersed mixture to solidify to form particles.Type: GrantFiled: February 7, 2001Date of Patent: January 28, 2003Assignee: Imperial Chemical Industries PLCInventor: Riaz Ahmad Choudhery
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Publication number: 20020198288Abstract: An aqueous dispersion, preferably a latex, of a polar group modified polyphenylene ether or a polar group modified block copolymer of a vinly aromatic monomer and a conjugated diene, said dispersion having a mean, volume average particle size dispersed phase of less than 2.0 &mgr;m is disclosed. The latex is particularly suited for use in the formation of a coating on an inorganic filler for use in formation of thermoplastic resin blends or composites.Type: ApplicationFiled: April 17, 2002Publication date: December 26, 2002Inventors: Dale C Schmidt, John M Warakomski, James E Pate
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Patent number: 6486244Abstract: The invention relates to a process for the manufacture of a thermoplastic composition comprising a polyphenylene ether resin and a styrenic resin wherein the processes comprises a concentrate of polyphenylene ether resin with an organic phosphate compound. The concentrate allows for ease of handling of polyphenylene ether resin without the risk of dust ignition while obtaining substantially the same physical properties as obtained with polyphenylene ether resin powder. The invention also relates to articles formed out of the compositions made by the process of the invention.Type: GrantFiled: January 18, 2001Date of Patent: November 26, 2002Assignee: General Electric CompanyInventors: Adeyinka Adedeji, Robert Hossan, William E. Pecak, Sai-Pei Ting
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Patent number: 6476158Abstract: A process for preparing a high gloss retention resin molding formulation comprising a polyester resin and a polycarbonate resin where the process comprises the steps of selecting a desirable colorant which is stable at molding temperatures and has desirable color retention properties when subjected to weathering, determining an optimized concentration of the colorant for maximizing gloss retention properties of the selected colorant by performing weathering test at differing concentrations of the colorant, and optionally determining a suitable gloss enhancing.Type: GrantFiled: May 16, 2000Date of Patent: November 5, 2002Assignee: General Electric CompanyInventors: William P. England, Robert Russell Gallucci, Paul Joseph Hans, Patricia A. Hubbard, David Whalen
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Patent number: 6469082Abstract: A solvent based polychloroprene contact bond adhesive having less than 250 grams per liter volatile organic compounds (VOCs) at high solids content is disclosed. The composition contains polychloroprene polymer, phenolic and tackifying resins, a zinc resinate, metallic oxide and antioxidants, mixed uniformly in a blend of organic solvents. The blend of organic solvents contains VOC exempt solvents as well as aliphatic and aromatic solvents.Type: GrantFiled: June 29, 2001Date of Patent: October 22, 2002Assignee: Illinois Tool Works, Inc.Inventors: Paul A. Raymond, John S. Piwnlca, Jr.
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Patent number: 6465567Abstract: The invention relates to pigment preparation having (a) at least one organic pigment, (b) at least one optionally ionically modified phenol-styrene polyglycol ether, and (c) at least one surface-active agent that is (i) an oxalkylated acetylene glycol of formula (I) wherein n is 0 to 14, m is 0 to 14, and m+n is 0 to 14, and/or (ii) compounds having the formulas (II), (III), and (IV) wherein R is C6-C18-alkyl. R1 independently denotes H or C1-C4-alkyl, p is from 3 to 60, R2 is R or optionally C1-C18-alkyl-substituted phenyl, X is —SO3−, —SO2−, —PO3═, or —CO—(R3)—COO−; R3 is a divalent aliphatic or aromatic radical, and Kat is a cation.Type: GrantFiled: May 15, 2000Date of Patent: October 15, 2002Assignee: Bayer AkgiengesellschaftInventors: Michael Grobe, Peter-Roger Nyssen, Michael Krause, Karina Kutschkau, Dirk Pfützenreuter
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Patent number: 6462148Abstract: A resin composition useful as an adhesive film and insulating material for a multilayer wiring substrate or electronic parts comprises (A) a polymer containing a quinoline ring represented by the formula (1) in the structure such as 6,6′-bis(2-(4-fluorophenyl)-4-phenylquinoline) and 4,4′-(1,1,1,3,3,3-hexafluoro-2,2-propylidene)bisphenol, and (B) a bismaleimide compound represented by the formula (2) such as 2,2-bis((4-maleimidophenoxy)phenyl)propane.Type: GrantFiled: October 7, 1999Date of Patent: October 8, 2002Assignee: Hitachi Chemical Co., Ltd.Inventors: Masahiro Suzuki, Shin Nishimura, Masao Suzuki, Akio Takahashi, Akira Kageyama, Yoshihiko Honda, Toshiyasu Kawai, Shinji Iioka, Yoshihiro Nomura
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Patent number: 6437031Abstract: The invention relates to compositions and methods for reducing food deposit adhesion to cookware. More specifically this invention relates to a resin composition having a glass transition temperature of at least 180° C. containing an amount of at least one fluorinated compounds, optionally also containing at least one additive selected from fatty acid esters, fatty acid amide, anionic surfactant, or a mixture containing at least one of the foregoing, to reduce food deposit adhesion on cookware made from the composition. The invention also relates to a method for providing plastic cookware having reduced food deposit adhesion.Type: GrantFiled: June 21, 2000Date of Patent: August 20, 2002Assignee: General Electric CompanyInventors: Cornelis Johannes Lensvelt, Jan Paul Penning, Robert Puyenbroek
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Patent number: 6291598Abstract: A polymerized material produced by the polymerization of an organic amide monomer in the presence of an organic carbonate and a process for the preparation thereof. The process comprises the steps of: heating an amount of the organic anide monomer to a temperature above its melting point; first mixing an amount of an anionic initiator with at least a portion of the amount of heated organic amide mnonomer to produce an amount of activated monomer, wherein the anionic initiator is not comprised of an alkali metal; second mixing an amount of the organic carbonate with at least a portion of the amount of heated organic amide monomer to produce an amount of dissolved organic carbonate; and polymerizing the amounts of heated organic amide monomer and activated monomer in the presence of the amount of dissolved organic carbonate to produce the polymerized material.Type: GrantFiled: October 18, 1999Date of Patent: September 18, 2001Inventors: Michael C. Williams, Nai-Hong Li, Yatin Sankholkar
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Publication number: 20010012870Abstract: A composition for film formation comprising a polymer having repeating structural units represented by the formula (1), the structural unit having one or more alkyl groups therein, and an insulating film obtained by applying the composition for film formation to a substrate and heating the coating film.Type: ApplicationFiled: January 30, 2001Publication date: August 9, 2001Applicant: JSR CORPORATIONInventors: Michinori Nishikawa, Takashi Okada, Kinji Yamada
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Patent number: 6258879Abstract: The invention relates to a process for the manufacture of a thermoplastic composition comprising a polyphenylene ether resin and a styrenic resin wherein the processes comprises a concentrate of polyphenylene ether resin with an organic phosphate compound. The concentrate allows for ease of handling of polyphenylene ether resin without the risk of dust ignition while obtaining substantially the same physical properties as obtained with polyphenylene ether resin powder. The invention also relates to articles formed out of the compositions made by the process of the invention.Type: GrantFiled: April 2, 1999Date of Patent: July 10, 2001Assignee: General Electric CompanyInventors: Adeyinka Adedeji, Robert Hossan, William E. Pecak, Sai-Pei Ting
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Patent number: 6228922Abstract: A method is provided for forming a highly conductive metal-containing polymer fiber or sheet in which a polymer is immersed in a solution containing a metal precursor selected from organic or inorganic salts of copper, silver, aluminum, gold, iron and nickel. The metal precursor is then reduced by chemical, electrochemical, or thermal means such that conductive metal is incorporated into the polymer.Type: GrantFiled: January 19, 1999Date of Patent: May 8, 2001Assignee: The University of DaytonInventors: Chyi-Shan Wang, Jar-Wha Lee, Richard A. Vaia
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Patent number: 6228915Abstract: The invention relates to compositions and methods for reducing food deposit adhesion to cookware. More specifically this invention relates to a resin composition having a glass transition temperature of at least 180° C. containing an amount of at least one additive selected from fatty acid esters, fatty acid amide, anionic surfactant, or a mixture containing at least one of the foregoing to reduce food deposit adhesion on cookware made from the composition. The invention also relates to a method for providing plastic cookware having reduced food deposit adhesion.Type: GrantFiled: April 15, 1999Date of Patent: May 8, 2001Assignee: General Electric CompanyInventors: Cornelis Johannes Lensvelt, Jan Paul Penning, Robert Puyenbroek
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Patent number: 6194512Abstract: An aqueous phenol/formaldehyde resole resin is disclosed having improved speciation. An aqueous extended phenol/formaldehyde and polycarboxylic acid co-binder and low emissions process for making the same are also disclosed. Glass fiber products may be prepared using the co-binder.Type: GrantFiled: June 28, 1999Date of Patent: February 27, 2001Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Liang Chen, Richard Wolever
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Patent number: 6194500Abstract: A modified emulsion of polycarbonate resin, comprising a polycarbonate resin emulsion and a monocarbodiimide compound and/or a polycarbodiimide compound; and a process for producing a modified emulsion of polycarbonate resin, which comprises adding a monocarbodiimide compound and/or a polycarbodiimide compound to a polycarbonate resin emulsion. This modified emulsion of polycarbonate resin is improved in adhesivity, water resistance and chemical resistance.Type: GrantFiled: June 2, 1999Date of Patent: February 27, 2001Assignees: Nisshinbo Industries, Inc., Matsumoto Yushi-Seiyaku Co., Ltd.Inventors: Yasuo Imashiro, Ikuo Takahashi, Takao Masaki, Akito Iwao
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Patent number: 6187858Abstract: A composition comprising: (a) polyethylene; (b) as a first antioxidant, a thiobisphenol; (c) as a second antioxidant, a compound containing 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate in the molecule; (d) as a third antioxidant, distearyl thiodipropionate; and (e) an organic peroxide, with the proviso that each antioxidant is present in an amount of about 0.01 to the about 0.2 part by weight and the organic peroxide is present in an amount of about 0.5 to about 3 parts by weight, all per 100 parts by weight of polyethylene.Type: GrantFiled: April 16, 1999Date of Patent: February 13, 2001Assignee: Nippon Unicar Company LimitedInventors: Takeshi Tachikawa, Koji Ishihara, Ariyoshi Ohki
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Patent number: 6180715Abstract: A solution and a stable aqueous dispersion of an acid salt of a polyetheramine can be prepared by at least partially neutralizing the polyetheranine with an acid. The solution and dispersion are useful as a coating, particularly in applications where it is desirable to have a barrier against small molecules.Type: GrantFiled: September 3, 1999Date of Patent: January 30, 2001Assignee: The Dow Chemical CompanyInventor: Dale C. Schmidt
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Patent number: 6174957Abstract: An adhesive composition based on resorcinol novolac or resorcinol-phenolic novolac contains 35-75% by weight of novolac, less than 25% by weight of water, and 10-40% by weight of an aliphatic divalent, trivalent alcohol. The adhesive composition may also contain up to 20% by weight of filter, based on the amount of novolac, water and alcohol. In a method for preparing the adhesive composition based on resorcinol novolac or resorcinol-phenolic novolac, the novolac is produced by conventional condensation, whereupon an aliphatic divalent, trivalent or tetravalent alcohol is added and water in the novolac is distilled off, resulting in an adhesive composition as defined above. Alternatively, the amount of water can be reduced in the condensation of the novolac to be replaced with an aliphatic divalent, trivalent or tetravalent alcohol.Type: GrantFiled: September 16, 1998Date of Patent: January 16, 2001Assignee: Casco Products ABInventors: Maria Bonini, Anna Janackovic, Ben Nasli-Bakir
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Patent number: 6166115Abstract: The present invention relates to flame retardant compositions of compatibilized polyphenylene ether-polyamide resin blends containing at least one phosphoramide compound. The present invention also relates to articles made from the resin compositions as well as methods to make flame retardant compositions of compatibilized polyphenylene ether-polyamide resin blends.Type: GrantFiled: January 22, 1999Date of Patent: December 26, 2000Assignee: General Electric CompanyInventor: Adrie Landa
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Patent number: 6162849Abstract: This invention relates to a thermally conductive moldable polymer blend comprising a thermoplastic polymer having a tensile at yield of at least 10,000 psi; at least 60% by weight of a mixture of boron nitride powders having an average particle size of at least 50 microns; and a coupling agent. The composition displays a thermal conductivity of at least about 15 W/m.degree. K and it is capable of being molded using high speed molding techniques such as injection molding.Type: GrantFiled: January 11, 1999Date of Patent: December 19, 2000Assignee: Ferro CorporationInventors: Qizhuo Zhuo, Ronald M. Harris, Dennis C. Skovran, Leo F. Lightner, Michael S. Randall, Vernon E. Stygar
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Patent number: 6103798Abstract: Thermoplastic compositions are provided containing a saturated hydrocarbon amine oxide and stabilizer compositions are provided containing a saturated hydrocarbon amine oxide and a second stabilizer. The thermoplastic compositions exhibit good melt flow rate stability during processing and are useful for making molded and extruded articles. The stabilizer compositions are useful for addition to thermoplastics for the stabilization thereof. A method is also provided for stabilizing thermoplastic compositions and involves admixing a hydrocarbon amine oxide with a thermoplastic resin. The saturated hydrocarbon amine oxides are preferably trialkyl amine oxides. The thermoplastic resin is preferably a polyolefin resin.Type: GrantFiled: May 26, 1998Date of Patent: August 15, 2000Assignee: General Electric CompanyInventors: Vaikunth S. Prabhu, Roger W. Avakian
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Patent number: 6013696Abstract: A method for manufacturing a heat resistant friction material which comprises forming pores in the surface of the friction material, the pores being formed with a controlled pore size, depth, pattern, orientation and distribution.Type: GrantFiled: January 22, 1998Date of Patent: January 11, 2000Assignee: The Mead CorporationInventors: Larry Oather Hill, Richard S. Goodlin, Christopher Roy Mathews, Mahendra Mehta
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Patent number: 6011111Abstract: A thermoplastic composite is prepared by applying a hydroxy-phenoxyether polymer onto the surface of reinforcing fibers or by the in-situ polymerization of mixtures of diepoxides and difunctional species in the presence of reinforcing fibers. The composites can be molded into shaped articles useful for structural materials and parts by conventional thermoforming or other fabrication techniques.Type: GrantFiled: October 18, 1993Date of Patent: January 4, 2000Assignee: The Dow Chemical CompanyInventors: David J. Brennan, Jerry E. White, Daryl R. Calhoun
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Patent number: 5998533Abstract: Polyarylene ethers having repeating units of the general formula I ##STR1## where t and q may each be an integer 0, 1, 2 or 3,T, Q and Z may each be a chemical bond or a group selected from --O--, --S--, --SO.sub.2 --, S.dbd.O, C.dbd.O, --N.dbd.N--, --R.sup.a C.dbd.CR.sup.b -- and --CR.sup.c R.sup.d --, with the proviso that at least one of the groups T, Q or Z is --SO.sub.2 -- or C--O and, if t and q are 0, Z is --SO.sub.2 -- or C.dbd.O,R.sup.a and R.sup.b are each hydrogen or C.sub.1 -C.sub.10 -alkyl,R.sup.c and R.sup.d are each hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.1 -C.sub.10 -alkoxy or C.sub.6 -C.sub.18 -aryl, where the abovementioned groups may each be substituted by fluorine and/or chlorine, or, together with the carbon atom to which they are bonded, form a C.sub.4 -C.sub.7 -cycloalkyl group which may be substituted by one or more C.sub.1 -C.sub.6 -alkyl groups, andAr and Ar.sup.1 are each C.sub.6 -C.sub.18 -aryl which may be unsubstituted or substituted by C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.Type: GrantFiled: December 11, 1997Date of Patent: December 7, 1999Assignee: BASF AktiengesellschaftInventors: Martin Weber, Christian Fischer
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Patent number: 5990188Abstract: The present invention provides the discovery of an improved radiation curable coating composition comprising at least one acrylic monomer, a photoinitiator, and an ultraviolet light absorber selected from triazine or a dibenzoyl resorcinol derivative or a mixture thereof, the dibenzoyl resorcinol derivative having the formula ##STR1## where Ar and Ar' are independently substituted or unsubstituted monocyclic or polycyclic aryl groups and R' is H or a linear or branched alkyl chain having less than about 10 carbons bearing a --Si(OR.sup.2).sub.3, where R.sup.2 is a C.sub.1 to C.sub.6 alkyl group.Type: GrantFiled: August 15, 1996Date of Patent: November 23, 1999Assignee: General Electric CompanyInventors: Gautam Ambalal Patel, James Edward Pickett, Gregory Ronald Gillette, George Frederic Medford
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Patent number: 5965663Abstract: A resin composition comprising (a) polyarylene polyether represented by the general formula of Z.sub.1 -(polyarylene polyether) chain-Z.sub.1 ' (wherein Z.sub.1 and Z.sub.1 ' denote individually a monovalent organic group containing a cross-linkable unsaturated carbon-carbon linkage), and (b) an inorganic filler.Type: GrantFiled: May 24, 1996Date of Patent: October 12, 1999Assignee: Kabushiki Kaisha ToshibaInventor: Rumiko Hayase
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Patent number: 5916933Abstract: Proppants comprising a particle coated with a composition comprising bisphenol-aldehyde novolak resin, a bisphenol homopolymer or mixtures including such polymers are disclosed. Foundry sands comprising a particle coated with a composition comprising bisphenol-aldehyde novolak resin, a bisphenol homopolymer or mixtures including such polymers are disclosed. Methods of making and using these proppant particles in subterranean formations or making and using these foundry sands in foundries are also disclosed.Type: GrantFiled: March 4, 1997Date of Patent: June 29, 1999Assignee: Borden Chemical, Inc.Inventors: Calvin K. Johnson, Kwok-tuen Tse
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Patent number: 5907015Abstract: An adhesive composition based on a combination of a water soluble amino silane and a normally water-immiscible alkenyl-functional silane wherein the latter is hydrolyzed in the presence of the former under specified conditions to form a stable, water-dilutable aqueous composition having marked bonding affinity between polymers and solid substrates.Type: GrantFiled: May 19, 1997Date of Patent: May 25, 1999Assignee: Lord CorporationInventor: Frederick H. Sexsmith
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Patent number: 5886064Abstract: A granular, polymerizable composition which contains at least one polymerizable monomer and/or oligomer and a polymerization initiator and optionally an accelerator and at least 70% by wt. filler and additionally 0.5 to 28% by wt. dendrimer and which becomes flowable under compressive or shear stress. The composition can be packed in similar manner to amalgam and is particularly suitable as dental material or for the production of a dental material.Type: GrantFiled: December 6, 1995Date of Patent: March 23, 1999Assignee: Ivoclar AGInventors: Volker Rheinberger, Norbert Moszner, Thomas Voelkel, Peter Burtscher
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Patent number: 5886092Abstract: Disclosed are methods for preparing carbon-containing materials resistant to alkali metal disruption, and compositions suitable for the preparation of carbon-containing materials resistant to alkali metal disruption. A composition in accordance with the invention comprises a mixture of (a) a binder phase having a viscosity of less than 10 Pascal seconds and a char yield in excess of 20% upon heating to a temperature of 800.degree.-1200.degree. C., and comprising at least one polymerizable resin and (b) particles of a solid material which is thermally stable at a temperature of 800.degree.-1200.degree. C., the particles having a granulometry wherein void spaces between the particles have a size of less than 20 .mu.m in diameter and the particles are coated with a layer of binder phase having a thickness of less than 2 .mu.m. When the composition is carbonized by heating to a temperature of 800.degree.-1200.degree. C., the composition forms a carbon-containing material resistant to alkali metal disruption.Type: GrantFiled: June 6, 1997Date of Patent: March 23, 1999Assignee: Comalco Aluminuim LimitedInventors: Raymond Walter Shaw, Drago Dragutin Juric, Gavan Joseph Stray
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Patent number: 5886128Abstract: Distilled tall oil may be reacted with phenol-containing organic compound, formaldehyde or reactive equivalent thereof and hydroxyl-containing non-phenolic organic compound to prepare a resin. The resin may be formulated with a colorant to provide an ink for lithographic printing.Type: GrantFiled: June 17, 1997Date of Patent: March 23, 1999Assignee: Union Camp CorporationInventors: James C. West, Mark S. Pavlin
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Patent number: 5854339Abstract: An adhesive composition based on resorcinol novolac or resorcinol-phenolic novolac consisting essentially of 35-75% by weight of novolac, less than 25% by weight of water, and 10-40% by weight of an aliphatic divalent, trivalent or tetravalent alcohol. The adhesive composition may also contain up to 20% by weight of filler, based on the amount of novolac, water and alcohol. In a method for preparing the adhesive composition based on resorcinol novolac or resorcinol-phenolic novolac, the novolac is produced by conventional condensation, whereupon an aliphatic divalent, trivalent or tetravalent alcohol is added and water in the novolac is distilled off, resulting in an adhesive composition as defined above. Alternatively, the amount of water can be reduced in the condensation of the novolac to be replaced with an aliphatic divalent, trivalant or tetravalent alcohol.Type: GrantFiled: December 9, 1996Date of Patent: December 29, 1998Assignee: Casco Nobel ABInventors: Maria Bonini, Anna Janackovic, Ben Nasli-Bakir
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Patent number: 5807908Abstract: An ionizing radiation-resistant polycarbonate resin composition comprising 0.1 to 10 parts by weight of an organic compound having one carbon--carbon unsaturated double bond forming a non-bonding orbital in the molecule based on 100 parts by weight of a polycarbonate resin, and a medical part comprising the same. The polycarbonate resin composition and the medical part comprising the same exhibit less deterioration of color and physical properties even when irradiated with ionizing radiation for sterilization, and are, therefore, useful as a medical part material and a medical part.Type: GrantFiled: May 29, 1997Date of Patent: September 15, 1998Assignee: Sumitomo Dow LimitedInventors: Yoshikazu Hirose, Naoyoshi Kawamoto, Shigeharu Suzuki
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Patent number: 5783653Abstract: A digital video disc substrate comprising a polycarbonate is herein disclosed in which a main chain has a structure represented by the general formula (I) ##STR1## and at least 25 mol % of this terminal group is represented by the formula (III) or (IV) ##STR2## and a viscosity-average molecular weight is in the range of 10,000 to 17,000, preferably 12,500 to 14,500.Type: GrantFiled: March 6, 1997Date of Patent: July 21, 1998Assignee: Idemitsu Petrochemical Co., Ltd.Inventor: Masaya Okamoto
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Patent number: 5777009Abstract: A polyestercarbonate copolymer blend which exhibits a glass transition temperature lower than bisphenol-A carbonate homopolymer, shows improved processability and fire-retardancy. The desired lower Tg and improved flow can be achieved by the polycondensation of a dihydric phenol and aliphatic dicarboxylic acid. The condensate is polymerized with a carbonate forming reagent. The resin is fire-retarded with a mixture of halogenated polycarbonate, potassium diphenylsulfone sulfonate and polytetrafluoroethylene.Type: GrantFiled: October 25, 1996Date of Patent: July 7, 1998Assignee: General Electric CompanyInventors: Wie-Hin Pan, Dwight J. Patterson, Omar M. Boutni, Luca P. Fontana
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Patent number: RE37023Abstract: The invention is directed to a stable phenolic dispersion of hydrophilic phenolic resin polymer using polyvinyl alcohol as protective colloid. Incorporation of a small proportion of an etherified bisphenol-A resin into an aqueous solution of a phenolic resin and a protective colloid (e.g., polyvinyl alcohol) forms a stable dispersion with low volatile organics content.Type: GrantFiled: February 9, 1999Date of Patent: January 16, 2001Assignee: Georgia-Pacific Resins, IncInventors: Ken A. Bourlier, Peggy S. Mulrenin