1,3-dihydroxy, E.g., Resorcinol, Etc. Patents (Class 524/346)
  • Patent number: 12036819
    Abstract: A tire has improved mechanical properties and comprises a rubber composition based on at least one elastomeric matrix mainly comprising at least one epoxidized polyisoprene having a molar degree of epoxidation greater than 40%, at least one polyamide of which the melting point is less than 170° C., and a crosslinking system.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: July 16, 2024
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Jose-Carlos Araujo Da Silva, Romain Libert
  • Patent number: 8906821
    Abstract: A catalyst composition comprising a cation and an anion of the formula Anq?Qpm+, wherein m, n, p, and q are positive integers, wherein m*p=n*q, wherein Qm+is an organo onium, and Aq?is an anion, provided that at least one Aq?is selected from the formula (I) wherein each R independently is H, halo, alkyl, aryl, aralkyl, or cycloalkyl, and which also may be halogenated, fluorinated, or perfluorinated, wherein two or more of R and R? groups may together form a ring, wherein each R group independently may contain one or more heteroatom(s), wherein R? can be the same as R, with the proviso that R? cannot be halo, and wherein the catalyst composition is essentially free of hydrocarbon containing alcohol. Also provided are a fluoropolymer composition including this curative, a method of making a fluoropolymer, and fluoropolymer articles containing curable or cured fluoropolymer compositions.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: December 9, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Werner M. A. Grootaert, Kim M. Vogel, Dennis E. Vogel
  • Patent number: 8604113
    Abstract: The photosensitive resin composition of the present invention includes an alkali solubility resin including molecules each composed of a main chain having one end and the other end opposite to the one end, an organic group bonded to the one end thereof, the organic group having at least one unsaturated group, and a substituent group bonded to at least one of the other end of the main chain and a branch thereof, the substituent group having a cyclic chemical structure containing nitrogen atoms, and a photosensitive agent. Further, the insulating film of the present invention is composed of a cured product of the above photosensitive resin composition. Furthermore, the protective film of the present invention is composed of a cured product of the above photosensitive resin composition. Moreover, the Electronic equipment of the present invention is provided with the above protective film and insulating film.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: December 10, 2013
    Assignee: Sumitomo Bakelite Co., Ltd.
    Inventor: Hideyuki Toyoda
  • Patent number: 8269409
    Abstract: The present invention comprises a process of mixing a luminous substance in powder form to a transferable grade molding compound in a pelletized or powder form, such as a clear epoxy, to derive a homogeneous mixture that can be pressed and sintered into solid pellets. The solid pellets are further processed so as to permit their deposition on and around a light emitting semiconductor driver so as to obtain a white light emitting semiconductor device. This white light emitting device can be used in a variety of lighting applications.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: September 18, 2012
    Assignee: Microsemi Corporation
    Inventor: Stephen G. Kelly
  • Patent number: 8034862
    Abstract: Golf balls comprising a core and a cover are disclosed. The core is a dual- or multi-layer core, wherein at least one layer is formed from a rubber composition comprising a base rubber and a resorcinol. The core layer formed from such rubber composition has a positive hardness gradient such that the difference between the layer's outer surface hardness and inner surface hardness is 5 Shore C units or greater.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: October 11, 2011
    Assignee: Acushnet Company
    Inventors: Brian Comeau, David A. Bulpett, Douglas S. Goguen, Derek A. Ladd
  • Patent number: 8034863
    Abstract: Golf balls consisting of a core and a cover are disclosed. The core is a solid, single-layer core formed from a rubber composition comprising a resorcinol. The core has a positive hardness gradient such that the difference between the core's surface hardness and the core's center hardness is 25 Shore C units or greater and/or the core has a diameter of from 1.51 inches to 1.59 inches.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: October 11, 2011
    Assignee: Acushnet Company
    Inventors: Brian Comeau, David A. Bulpett, Douglas S. Goguen, Derek A. Ladd
  • Patent number: 7767743
    Abstract: A branched isobutylene-styrenic elastomer with a broad molecular weight distribution is disclosed comprising an interpolymer of an isoolefin monomer as isobutylene, a styrenic monomer such as p-methylstyrene, and a multiolefin such as divinylbenzene. The elastomer has improved green strength, relaxation characteristics, and processability in melt processing, while retaining excellent aging characteristics and barrier properties, and can be used in a blend with a linear isobutylene-p-alkylstyrene elastomer to improve processability of the linear elastomer. Also disclosed are a method for processing the linear elastomer with an effective amount of the branched elastomer to improve processability, and nanocomposites, curable compositions, cured compositions and useful articles formed from the branched elastomer and the linear-branched elastomer blends.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: August 3, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Weiqing Weng, David Y. Chung, Anthony Jay Dias, Yuan-Ju (Ray) Chen, Alan A. Galuska, James R. Ayers
  • Publication number: 20100056670
    Abstract: A method of producing a tire including mixing in a non-productive phase at least one elastomer with a polyamide having a melting temperature of less than 180° C. The polyamide is allowed to heat to at least its melting temperature. During the productive phase, at least one curing agent is added to the elastomeric composition. The curing agent may be a sulfur containing curing agent and/or a non-sulfur containing curing agent. The elastomeric composition may optionally include a crystalline EPDM elastomer. The resulting compositions may then be formed into a tire component which may be built into a tire and cured.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 4, 2010
    Inventors: Junling Zhao, Paul Harry Sandstrom, Aaron Scott Puhala, Richard Michael D'Sidocky
  • Patent number: 7544730
    Abstract: The present invention is directed to a golf ball having at least one layer formed from a rubber composition comprising a base rubber, a free radical initiator, and a catechol. The present invention is also directed to a golf ball having at least one layer formed from a rubber composition comprising a base rubber, a free radical initiator, and a resorcinol. Rubber compositions of the present invention may be present in any one or more of a core layer, a cover layer, or an intermediate layer.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: June 9, 2009
    Assignee: Acushnet Company
    Inventors: Brian Comeau, David A. Bulpett, Douglas S. Goguen
  • Publication number: 20090054558
    Abstract: Pulverulent polycondensation products are described, consisting of a) 5 to 95% by weight of a polycondensation product based on an aromatic or heteroaromatic compound (A) having 5 to 10 C atoms or heteroatoms having at least one oxyethylene or oxypropylene radical and one aldehyde (C) selected from the group consisting of formaldehyde, glyoxylic acid and benzaldehyde or mixtures thereof, and b) 5 to 95% by weight of a finely divided mineral carrier material having a specific surface area of 0.5 to 500 m2/g (according to BET as specified in DIN 66 131). The pulverulent polycondensation products according to the invention are outstandingly suitable in construction material mixtures in an amount of from 0.1 to 5% by weight, based on the weight of the construction material. The pulverulent polycondensation products have a number of advantages here, such as, for example, excellent storage stability, good liquefying action at low dosage and industrially simple production.
    Type: Application
    Filed: December 18, 2006
    Publication date: February 26, 2009
    Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
    Inventors: Philipp Wieland, Alexander Kraus, Gerhard Albrecht, Harald Grassl, Kerstin Becher
  • Patent number: 7439291
    Abstract: A solvent-resistant polymeric membrane comprising a solvent-inert polymer having a solubility parameter greater than 18 (J/cm3)0.5, such as a polyketone, a polyether ketone, polyarylene ether ketone ketone, a polyimide, a polyetherimide, or a polyphenylene sulfide, is described. The solvent-resistant polymeric membrane can be prepared by methods in which solvent-inert polymers form a solution at room temperature.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: October 21, 2008
    Assignee: General Electric Company
    Inventors: Hua Wang, Anatoli Kogan, Jared Paul Ray, Gary William Yeager
  • Patent number: 6737478
    Abstract: The invention relates to rubber compounds comprising at least one double bond-containing rubber, additions of rubber gels, phenolic resin adducts or phenol/formaldehyde condensation products, such as resols or novolaks, and optionally, further fillers and rubber auxiliary substances, and the vulcanizates and molded rubber articles produced from them. The rubber compounds according to the present invention are characterized in the uncrosslinked state by good processability (compound viscosity ML 1+4/100° C.<60 ME) and in the vulcanized state by Shore-A hardness values/23° C.>60, high impact resilience values E/23° C.>60% and a low specific density. The vulcanizates are suitable for the production of industrial rubber articles and for various tire components, such as roll coverings, conveyor belt coverings, belts, spinning cops, seals, golf ball cores, shoe soles and bead compounds, tire carcasses, subtread compounds and tire sidewalls.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: May 18, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Obrecht, Anthony Sumner
  • Patent number: 6534578
    Abstract: A refrigerant hose for an air conditioner has an inner wall layer formed of a laminate of an inner resin layer and an outer rubber layer bonded by its vulcanization to the resin layer. The rubber layer is of a composition comprising butyl rubber, an adhesive material based on resorcinol and a vulcanizing agent based on an alkylphenol-formaldehyde resin, and having a bromine content of at least 0.5% by weight. The hose having the inner wall layer surrounded by a reinforcing layer and an outer wall layer exhibits a high adhesive strength even at an elevated temperature between its refrigerant-impermeable resin layer and its water-impermeable rubber layer.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: March 18, 2003
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Eiichi Daikai, Koji Senda
  • Patent number: 6107399
    Abstract: A method of improving the release and antideposition characteristics of a hard impermeable surface. A hard impermeable surface is coated with a film of an aqueous solution. The solution is formed by combining (i) a dimer of at least two alkoxy functional silanes, (ii) an aqueous silicone emulsion of a polydiorganosiloxane, and (iii) water. The film is allowed to dry on the hard impermeable surface or the film can be wiped to dryness. The solution may also contain a water soluble hydrophilic solvent such as propylene glycol.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: August 22, 2000
    Assignee: Dow Corning Corporation
    Inventors: David Brian Selley, Dipak Narula, Anh Be
  • Patent number: 5981073
    Abstract: Novel dibenzoylresorcinol-based compounds are disclosed wherein the dibenzoylresorcinol is bonded to the residue of either an alcohol or a carboxylic acid group, via a methylene carboxylate linking group; and wherein the dibenzoylresorcinol is bonded directly to a substituted or unsubstituted aryl group which does not include a pendent hydroxyl group. The groups attached to the dibenzoylresorcinol may contain a wide variety of functional sites which permit further reaction, e.g., copolymerization. The described compounds are very useful as UV light absorbers and may be used to form improved coating compositions which usually include a transparent, polymeric matrix material. The coating compositions may be applied to various substrates, e.g., thermoplastics, to afford a selection of enhanced properties, such as UV light resistance and abrasion resistance.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: November 9, 1999
    Assignee: General Electric Company
    Inventors: James Edward Pickett, Wen P Liao, Amy Kathleen Simonian, Gregory Ronald Gillette
  • Patent number: 5922797
    Abstract: This invention relates to a latex for utilization in adhesive compositions for bonding synthetic fibers to natural or synthetic rubber. These latices can be produced at reduced cost and their utilization results in improved performance characteristics. This invention more specifically discloses a latex which is particularly useful for adhering synthetic fibers to rubber which is comprised of (a) water, (b) an emulsifier and (c) a polymer which is comprised of repeat units which are derived from (i) a conjugated diolefin monomer, (ii) a vinyl aromatic monomer, (iii) 2-vinylpyridine and (iv) a vinyl aldehyde monomer.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: July 13, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Judy Chu, Dane Kenton Parker, James Gregory Gillick
  • Patent number: 5869185
    Abstract: A polycarbonate substrate coated with an acrylic coating containing at least one polybenzoylresorcinol, and optionally a silicone hardcoat on the acrylic coating, wherein said at least one polybenzoylresorcinol has the formula ##STR1## wherein each A is independently a substituted or unsubstituted monocyclic aromatic radical wherein any substituents are hydrogen, halogen, alkoxy, C.sub.1-8 alkyl, or hydroxy, and R is hydrogen or a linear or branched aliphatic radical having less that about 10 carbon atoms.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: February 9, 1999
    Assignee: General Electric Company
    Inventors: Steven Roger Bahr, James Edward Pickett, Karen Kueck Webb
  • Patent number: 5859121
    Abstract: Disclosed herein is a stable aqueous dispersant solution containing a high concentration of an EO/PO nonionic block copolymer incapable of liquid phase continuity at ambient temperatures, and a formulation and processing approach providing an effective combination of an anionic dispersant with a water miscible solvent in an aqueous system that allows the feasible production of a dispersant solution containing a high concentration of EO/PO nonionic block copolymer.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: January 12, 1999
    Assignee: Bayer Corporation
    Inventor: John W. Brandriff
  • Patent number: 5760171
    Abstract: Polyphenylene ethers are decolorized by contact in the melt or in solution with a hydroxy compound containing either another hydroxy group or a double or aromatic bond in a specific location in the molecule. Illustrative decolorizing compounds are benzopinacol, benzoin and acetoin.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: June 2, 1998
    Assignee: General Electric Company
    Inventors: Dwain Montgomery White, Gary William Yeager
  • Patent number: 5700861
    Abstract: A fluororubber coating composition which contains (a) a fluororubber having a --CH.sub.2 -- group in a backbone; (b) a fluoropolyether fluorooil having a functional group capable of chemically bonding to the fluororubber (a) upon heating; (c) a vulcanizing agent and optionally vulcanizing aid; and (d) a medium. When the composition is applied to a substrate and calcined, permanent non-tackiness can be imparted to the substrate surface without impairing the characteristics of the fluororubber, such as elasticity, and the heat and chemical resistance.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: December 23, 1997
    Assignee: Daikin Industries Ltd.
    Inventors: Nobuyuki Tomihashi, Kiyotaro Terasaka
  • Patent number: 5658671
    Abstract: A coating composition useful, for example, in the preparation of automotive gaskets and the like, the composition comprising:(1) a fluoroelastomer;(2) a quaternary ammonium or quaternary phosphonium salt accelerator;(3) a polyol;(4) an acid acceptor;(5) an oil-soluble chelating agent; and(6) an organic solvent.
    Type: Grant
    Filed: October 4, 1995
    Date of Patent: August 19, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Tatsuo Fukushi
  • Patent number: 5571854
    Abstract: A phenolic resin molding material for molding at lower than normal pressures, comprising as resin components a combination of (A) a crystalline phenolic compound having two or more hydroxyphenyl groups and (B) a compound having two or more hydroxyl groups in the benzene ring, or (A), (B) and (C) a phenolic resin.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: November 5, 1996
    Assignee: Sumitomo Bakelite Company Limited
    Inventors: Tamotsu Ishida, Tsukasa Sakamoto, Hidenori Saito
  • Patent number: 5489631
    Abstract: A process for the improving the mechanical properties and the sealing properties of elastomer gaskets. The elastomer is prepared by adding to an elastomer composition, at the time of the preparation phase, fibers having an average length on the order of 2 to 12 mm. The elastomer is molded, by injection or by compression transfer, such that the orientation of the fibers in the elastomer is obtained by positioning and orienting of the nozzle or the channel inlets into the mold cavity. The fibers, embedded in the elastomer have an orientation that is, parallel to a surface against which a ridge of the closure device comes into contact and perpendicular to the closure device when the butterfly valve is shut.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: February 6, 1996
    Assignee: KSB S.A.
    Inventor: Jean-Paul Dubois
  • Patent number: 5487425
    Abstract: The present invention provides a composition for recovery of petroleum and gas, which comprises (a) a copolymer having a molecular weight of 100,000 or more, composed of 30-75 mole % of N-vinylpyrrolidone unit, 5-70 mole % of (meth)acrylamide unit and 0-20 mole % of (meth)acrylic acid unit or a salt thereof, (b) a water-soluble aldehyde, (c) a phenol compound, and (d) water. This composition can form a gel in a required gelling time even at high temperatures and even in the presence of bivalent metal ions and accordingly can be used for efficient recovery of petroleum and gas.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: January 30, 1996
    Assignees: Nitto Chemical Industry Co., Ltd., Japan Petroleum Exploration Co., Ltd.
    Inventors: Takamasa Ohno, Keietsu Kato, Yoshiyuki Yamaguchi, Masami Murakami, Shogo Suzuki, Shoichi Kanda, Tsuyoshi Nakagawa
  • Patent number: 5451625
    Abstract: A coating composition useful, for example, in the preparation of automotive gaskets and the like, the composition comprising:(1) a fluoroelastomer;(2) a quaternary ammonium or quaternary phosphonium salt accelerator;(3) a polyol;(4) an acid acceptor;(5) an oil-soluble chelating agent; and(6) an organic solvent.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: September 19, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Tatsuo Fukushi
  • Patent number: 5290838
    Abstract: A novel neopentyl .alpha.-cyanoacrylate composition is provided. The composition which includes neopentyl .alpha.-cyanoacrylate has superior adhesive properties even at high temperatures and is characterized by the absence of the whitening phenomenon.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: March 1, 1994
    Assignee: Three Bond Co., Ltd.
    Inventors: Hiroyuki Mikuni, Toshiyuki Chikusa
  • Patent number: 5166246
    Abstract: Polyphenylene ether- polyamide compositions having improved resistance to water absorption and swell are provided by incorporating therein a phenolic compound.
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: November 24, 1992
    Assignee: General Electric Company
    Inventors: Robert R. Gallucci, John A. Rock
  • Patent number: 5143962
    Abstract: A method of granulating resorcinol/silica mixtures which comprises transporting a mixture of resorcinol and precipitated silica by conveyor worms to two pressing rollers whose shafts are attached vertically above one another and whose contact pressure can be varied, compacting said mixture between said rollers, breaking up the compacted mixture with a cake breaker to obtain a granulate with minimum grain size and separating the remaining dusty portion of said mixture. The mixtures can be added to vulcanizable rubber to provide improved adhesion to rubber reinforcements.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: September 1, 1992
    Assignee: Degussa AG
    Inventors: Siegfried Wolff, Udo Gorl, Karl Meier
  • Patent number: 5128403
    Abstract: A one-coat adhesive composition which utilizes environmentally acceptable ingredients and which can withstand high temperature conditions such as those experienced during injection molding processes. The adhesive contains a Diels-Alder adduct of a perhalogenated cyclic conjugated diene and an olefinically unsaturated dienophile having a vinyl content in excess of 50 percent, a phenolic resin, an aromatic hydroxy compound, a formaldehyde donor, a heat-activated unsaturated elastomer crosslinker, a vulcanizing agent, and a metal oxide. An adhesive bond prepared with the adhesive is resistant to high temperature fluids and corrosive agents.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: July 7, 1992
    Assignee: Lord Corporation
    Inventors: Patrick A. Warren, Mark A. Weih, Karen M. Bond
  • Patent number: 5082885
    Abstract: Improved thermal stability and melt stability is demonstrated by stabilized compositions comprising a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon having incorporated therein a stabilizing quantity of a phenolic compound of defined structure.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: January 21, 1992
    Assignee: Shell Oil Company
    Inventors: Robert Q. Kluttz, Johannes L. M. Syrier
  • Patent number: 5019617
    Abstract: Rubber compositions are disclosed which exhibit enhanced dynamic modulus and tensile strength characteristics. A selected type of carbon black, resorcinsol and/or its precondensate and hexamethoxymethyl melamine are combined in specified amounts with a selected class of starting rubbers. The carbon black has specified nitrogen adsorption surface area, dibutyl phthalate adsorptivity and Dst mode of diameter.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: May 28, 1991
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Hiroyuki Kaidoo, Takao Muraki
  • Patent number: 4970272
    Abstract: Polyphenylene ether-polyamide compositions having improved resistance to water absorption and swell are provided by incorporating therein a phenolic compound.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: November 13, 1990
    Assignee: General Electric Company
    Inventor: Robert R. Gallucci
  • Patent number: 4950698
    Abstract: A composition for closing pores in a formation following a steam-flooding enhanced oil recovery process. The composition comprises an aqueous temperature activated gellable mixture. This mixture is comprised of water, water dispersible polymers, phenolic compounds, and aldehyde producing compounds. Polymers which can be utilized herein include polyvinyl alcohol, polyacrylamide and poly(acrylamide-coacrylamido-2-methylpropane sulfonate). Phenol is the phenolic compound of choice. At a formation temperature greater than 300.degree. F., trioxane, the preferred aldehyde producing compound decomposes to yield formaldehyde which reacts with phenol to form phenolic resin in situ. The resin gels the polymer and forms a solid gel in a heated zone of the formation.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: August 21, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Paul Shu, Winston R. Shu
  • Patent number: 4894398
    Abstract: A method for stabilizing an unsaturated organosilicone is disclosed wherein a stabilizing amount of a hydroxylamine compound is added to the organosilicone to prevent thermal polymerization of the latter. The organosilicone may be an alkoxysilane or an organopolysiloxane having in its molecule a reactive organic group bearing at least one radical selected from acryloxy, methacryloxy, acrylamide, methacrylamide, styryl or vinylbenzyl radicals. The hydroxylamine compound may be added either to the organosilicone or during the preparation of the alkoxysilane from its respective reactants.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: January 16, 1990
    Assignee: Dow Corning Corporation
    Inventor: Howard M. Bank
  • Patent number: 4845134
    Abstract: A gelable composition is provided which can be injected into a well prior to steam treatment of the well. The composition comprises water, a water-dispersible polymer, a water-dispersible first crosslinker and a water-dispersible second crosslinker, wherein the first and second crosslinkers have differing temperature responsive crosslinking characteristics over the temperature range of about 70.degree. F. to about 400.degree. F. so as to enable crosslinking of the polymer and gelation of the composition over substantially the entire temperature range. Injection of the composition into a "cold" well followed by steam treatment of the well causes the polymer to undergo a two stage crosslinking reaction which produces a particularly effective and stable gel in diverting steam from "thief zones" in the formation surrounding the well.
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: July 4, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Naim A. Mumallah, Peter H. Doe
  • Patent number: 4822842
    Abstract: A process is disclosed for delaying the rate at which water soluble polymers are gelled by an aldehyde and a phenolic compound and for increasing the mechanical strength of these gels which comprises contacting an aqueous solution of said water soluble polymer, aldehyde, phenolic compound, and water with from 0.004 to about 0.049 wt % of a transition metal ion. In addition, novel gelable compositions are disclosed.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: April 18, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Naim A. Mumallah, Ahmad Moradi-Araghi
  • Patent number: 4622356
    Abstract: The use of a cyclic compound containing a ##STR1## group, i.e., methone, has been found to allow a poor acrylamide or acrylic acid or 2-acrylamide-2-methylpropane sulfonic acid and its salts monomer to be polymerized to a polymer having improved performance characteristics and/or improved rates of polymerization. Optionally, urea is added with the methone.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: November 11, 1986
    Assignee: American Cyanamid Company
    Inventors: Peter A. Jarovitzky, Roger E. Neff
  • Patent number: 4568715
    Abstract: An aromatic polyimide composition usable for producing shaped articles, for example, films, or as varnish, lacquer, or bonding agent, comprises a high molecular weight aromatic polyimide resin which is a polycondensation-imidization product of an aromatic tetracarboxylic acid component comprising 50 molar % or more of 3,4,3',4'-biphenyltetracarboxylic acid, anhydride, salt, or ester with an aromatic diamine component including 50 molar % or more of 4,4'-diaminodiphenylether, and which is dissolved in a mixed solvent consisting essentially of 10% by weight or more of a first solvent component selected from naphthol and resorcin and the balance of a second solvent component selected from phenol and cresols.
    Type: Grant
    Filed: March 20, 1985
    Date of Patent: February 4, 1986
    Assignee: Ube Industries, Ltd.
    Inventors: Hiroshi Itatani, Toshihiro Inaike, Shuji Yamamoto
  • Patent number: 4454278
    Abstract: A polyester, a polyester/polyamide or a polyester/polyamide/polyimide polymers are prepared from (a) a diaryl terephthalate or diaryl isophthalate, and (b) an aromatic polyol or of (a) and a mixture of (b), and an aromatic diamine, or of (a), (b), (c), and (d) a triaryl mellitate, or a copolycarbonate of any of the foregoing including units derived from (e) a diaryl carbonate. The resulting polyester, polyamide, polyester/polyamide or polyester/polyamide/polyimide polymers are adapted for use as an insulating coating on an electrical conductor.
    Type: Grant
    Filed: June 24, 1981
    Date of Patent: June 12, 1984
    Assignee: General Electric Company
    Inventors: Daniel W. Fox, John J. Keane
  • Patent number: 4442163
    Abstract: There is prepared a homogeneous mixture of 95 to 30% carbon black and 5 to 70% resorcinol. The resorcinol preferably either has an average particle size of 0.01 to 0.4 mm or is broken down to that size. The product is employed in rubber mixture to improve the adhesion of rubber vulcanizates to metal, textile fibers, glass fibers, or their structures.
    Type: Grant
    Filed: January 21, 1983
    Date of Patent: April 10, 1984
    Assignee: Degussa Aktiengesellschaft
    Inventors: Gerhard Kuhner, Siegfried Wolff, Lothar Rothbuhr