Dnrm Which Is Other Than Silicon Dioxide, Glass, Titanium Dioxide, Water, Halohydrocarbon, Hydrocarbon, Or Elemental Carbon Patents (Class 524/80)
  • Patent number: 4970255
    Abstract: Flameproofed thermoplastic molding materials contain(A) 40-99% by weight of a partly aromatic amide copolymer consisting essentially of(a.sub.1) 40-50% by weight of units derived from terephthalic acid and hexamethylenediamine,(a.sub.2) 0-50% by weight of units derived from .epsilon.-caprolactam and(a.sub.3) 0-60% by weight of units derived from adipic acid and hexamethylenediamine,components (a.sub.2) and/or (a.sub.3) accounting altogether for not less than 10% by weight of the total number of units,(B) 1-30% by weight of a flameproofing combination of(b.sub.1) 40-97% by weight of red phosphorus,(b.sub.2) 1-50% by weight of an inorganic compound of a divalent or tetravalent metal,(b.sub.3) 1-40% by weight of an organic mono- or dicarboxylic acid and(b.sub.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: November 13, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Reimann, Gunter Pipper, Hans-Peter Weiss, Christoph Plachetta, Eckhard M. Koch, Gerd Blinne, Walter Goetz, Peter Steiert
  • Patent number: 4959180
    Abstract: Processable electrically conductive latex polymer compositions including colloidal particles of an oxidized, polymerized amino-substituted aromatic monomer, a stabilizing effective amount of a random copolymer containing amino-benzene type moieties as side chain constituents, and dopant anions, and a method of preparing such polymer compositions are provided.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: September 25, 1990
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Steven P. Armes, Mahmoud Aldissi
  • Patent number: 4957660
    Abstract: A conductive plastic molding obtained by melt molding an ethylene copolymer comprising from 40 to 90% by weight of an ethylene unit, from 10 to 60% by weight of at least one dialkylaminoalkylacrylamide comonomer unit represented by formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 5, and up to 20% by weight of one or more ethylenically unsaturated comonomer units and having a number average molecular weight of from 5,000 to 50,000 and impregnating at least 10 parts by weight of an aqueous solution of at least one of an organic acid, an inorganic acid, and an inorganic metal salt into 100 parts by weight of the resulting melt molded. The molding exhibits excellent conductivity and can be obtained easily and at low cost without any limitation on shape.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: September 18, 1990
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadayuki Ohmae, Tadashi Sakurai, Noboru Yamaguchi, Mitsuyuki Okada, Kouichiro Asao
  • Patent number: 4921896
    Abstract: Flameproofed polyamide-based molding compositions contain a fireproofing amount of a red phosphorus, at least one lanthanide compound, a stabilizing amount of talc and zinc sulfide and/or zinc oxide, and are well adopted for conversion into useful shaped articles presenting an attractive combination of properties in respect of flame resistance, resilience, arc tracking resistance and surface appearance.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: May 1, 1990
    Assignee: Rhone-Poulenc Chimie
    Inventors: Yves Bonin, Jack LeBlanc
  • Patent number: 4892678
    Abstract: A thiophene derivative polymer comprising repeating units of the formula: ##STR1## (wherein R stands for one member selected from the group consisting of ##STR2## and a polymer composition having the polymer doped with an anion and consequently possessing a semiconducting characteristic.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: January 9, 1990
    Assignee: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Susumu Tanaka, Masaaki Sato, Kyoji Kaeriyama, Yoshio Suda, Takao Hiraide
  • Patent number: 4877823
    Abstract: Fireproofed thermoplastic molding materials which contain red phosphorus as a flame-proofing agent are obtainable by mixing(A) from 5 to 95% by weight of a polyamide or of a polyester or of a mixture of these,(B) from 5 to 95% by weight of an elastomer dispersion containing, as essential components,(b.sub.1) from 5 to 75% by weight of an elastomer prepared by emulsion polymerization,(b.sub.2) from 10 to 70% by weight of red phosphorus, p2 (b.sub.3) from 10 to 80% by weight of water and(b.sub.4) from 0.1 to 5% by weight of dispersant, and(C) from 0 to 60% by weight of fibrous or particulate fillers or a mixture of these,the total content of red phosphorus in the molding material being from 3 to 20% by weight, based on the total weight of the molding material, and the elastomer composition being introduced into a melt of the polyamide or of the polyester or of a mixture of these.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: October 31, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Christoph Plachetta, Graham E. McKee, Hans-Peter Weiss
  • Patent number: 4871475
    Abstract: Polysulfone and polyethersulfone oligomers are made by the condensation of phenols and halogenated moieties and exhibit improved solvent resistance when capped with crosslinkable end cap imidophenols. Composites made with a blend of the oligomers and corresponding polymers formed from the phenols and halogenated moieties, but without end caps, exhibit superior impact resistance while retaining the desired solvent resistance. Conductive or semiconductive oligomers (or their composites) can be formed by doping suitable oligomers, especially those prepared from Schiff base diols.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: October 3, 1989
    Assignee: The Boeing Company
    Inventors: Hyman R. Lubowitz, Clyde H. Sheppard
  • Patent number: 4845146
    Abstract: A flame-retardant olefin polymer composition containing 100 parts by weight of a resin component, said resin component consisting essentially of the following (a) and (b):(a) 60-99% by weight of a copolymer of ethylene and a carboxyl-containing monomer or a derivative thereof and(b) 1-40% by weight of an olefin polymer modified with an unsaturated carboxylic acid or a derivative thereof; and(c) 20-200 parts by weight of an inorganic flame retardant.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: July 4, 1989
    Assignee: Nippon Petrochemicals Company, Limited
    Inventors: Takashi Inoue, Masazi Sunada, Motohide Okamoto, Masayoshi Kariya, Tadashi Inoh
  • Patent number: 4832869
    Abstract: The present invention relates to electrically conducting organic polymers useful for spacecraft and other uses. The invention describes a number of conductive organic polymers having an electrical conductivity greater than 10.sup.-2 ohm .sup.-1 cm.sup.-1. The structures of the organic polymers contain heteroatoms such as oxygen, nitrogen and sulfur which are found in alkylene, aralkyl and aryl groups. Optionally, organic and inorganic dopants are used to increase the conductivity of the polymer. These materials are useful for conductive coatings and shielding applications, in energy storage and conversion devices, as battery anodes or cathodes, semiconductor materials and in integrated electroptics for switching, logic and display.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: May 23, 1989
    Assignee: SRI International
    Inventor: David B. Cotts
  • Patent number: 4814018
    Abstract: Fillers comprising a composition in which 50-90 wt. % or iron oxides and 10-30 wt. % of silica are contained, at least 50 wt. % of the iron oxides being present in the form of iron oxide silicate, and the content of alkali metal oxides or alkaline earth metal oxides is 10 wt. % or less in total, are suitable as fillers for the fabrication of noise insulating materials. Noise insulating materials obtained by using said fillers are excellent in flexibility and processibility and moreover are large in surface density, thus exhibiting excellent noise insulating ability.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: March 21, 1989
    Assignees: Tatsuta Electric Wire and Cable Co., Ltd., Nippon Mining Co., Ltd.
    Inventors: Hidekazu Tsurumaru, Nobuhiro Fujio, Takeshi Yamasaki, Toshio Nishizaki, Isao Negisi
  • Patent number: 4804697
    Abstract: A thermoplastic resin composition comprising a resin blend comprising an aromatic polysulfone and a polyetherketone, the relationship between the blending ratio and the melt viscosity of said polyetherketone satisfying a specific mathematical expression, and one or more inorganic fillers having a specific shape is disclosed. The thermoplastic resin composition according to the present invention provides many property advantages including chemical resistance and injection molding stability. It can be suitably used in the frontier industries such as electric, electronic, automobile and office automation instrument industries.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: February 14, 1989
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Teruo Saito, Kuniaki Asai, Yasurou Suzuki
  • Patent number: 4785031
    Abstract: Stabilized and carried red phosphorus as anti-flame agent for polymers, having its individual particles encapsulated into a synthetic resin, said particles being moreover aggregated to one another to form a plurality of pellets, each one of said pellets being constituted by a plurality of said particles bonded to one another by means of polyethylene with a density of 0.910-0.925 g/ml, and a melt index of 55-150, as expressed as g/10 minutes.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: November 15, 1988
    Assignee: Saffa S.p.A.
    Inventor: Luciano Scarso
  • Patent number: 4778625
    Abstract: An insoluble infusible electroconductive polymer is provided, which is derived from an organic compound having 3 to 6 carbon atoms and having a cyano group and an ethylenically or acetylenically unsaturated bond by mutually reacting this compound at an elevated temperature.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: October 18, 1988
    Assignee: Director-General of Agency of Industrial Science and Technology
    Inventors: Kiichiro Matsumura, Akio Takahashi, Jun Tsukamoto
  • Patent number: 4772421
    Abstract: An electroconductive resin composite is produced by polymerizing at least one monomer a polymer of which is electroconductive in a matrix of a resin which exhibits the anisotropy in the melt phase to form a composite of the obtained polymer and the resin. The resin composite is obtained in the form of film and a moulded article.
    Type: Grant
    Filed: September 16, 1986
    Date of Patent: September 20, 1988
    Assignee: Polyplastics Co., Ltd.
    Inventors: Yukio Ikenaga, Katsuhiko Takahashi, Tsuneyoshi Okada, Kenji Hijikata, Toshio Kanoe
  • Patent number: 4765928
    Abstract: This invention relates to the discovery of a novel class of intrinsically electrically conductive doped solid organic homopolymers having a conductivity when measured by the four point probe method at standard temperature conditions within the range of about 10.sup.-3 to 10 ohms.sup.-1 cm.sup.-1 developed by either treatment of the organic polymer surface with an electron donor or an electron acceptor dopant. The individual "mer" unit of the useful polymeric class of homopolymers for the purposes of accepting the dopant treatment consist of homopolymers having the repeating general structure: ##STR1## wherein the useful members of this class require that the R.sub.1 and R.sub.2 substituents in the illustrated structured "mer" are not both hydrogen substituents. However, in many instances of individual operative members of the class R.sub.1 and R.sub.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: August 23, 1988
    Inventor: Mrinal Thakur
  • Patent number: 4762644
    Abstract: A polymer solution comprising a polymer comprising at least 50 mole % of recurring units represented by the following formula (1): ##STR1## wherein R.sub.1 through R.sub.4, which may be the same or different, represent a hydrogen atom or an alkyl or alkoxy group having 1 to 5 carbon atoms, with the proviso that the case where all of R.sub.1 through R.sub.4 represent a hydrogen atom is excluded, a dopant and an organic solvent has a high electric conductivity and is valuable as an electrolyte of a battery, an electrolyte of a capacitor, and the like. A shaped article obtained by shaping this solution and removing the organic solvent from the shaped article has a high electric conductivity and is valuable as various electronic parts.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: August 9, 1988
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Yukio Kobayashi, Masataka Takeuchi
  • Patent number: 4740537
    Abstract: Disclosed is a composition that is polymerizable by contacting it with an olefin metathesis catalyst comprising dicyclopentadiene, red phosphorus, and a brominated aromatic compound selected from the group consisting of decabromodiphenyl oxide, N,N'-ethylene-bis-(tetrabromophthalimide), brominated polystyrene, brominated polyphenylene oxide, tetradecabromodiphenoxy benzene, tetrabromoxylene, and octabromodiphenyl oxide.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: April 26, 1988
    Assignee: Hercules Incorporated
    Inventor: Paul A. Silver
  • Patent number: 4738999
    Abstract: Compositions comprising elastomeric polyurethane prepolymers comprising the reaction product of at least one diisocyanate selected from the group consisting of p-phenylene diisocyanate, m-phenylene diisocyanate, 1,4-cyclohexyl diisocyanate, tetramethylxylyl diisocyanate and dimethylphenyl diisocyanate and at least one polyol or polythiol characterized by the presence of two hydroxyl or thiol groups or one hydroxy and one thiol group; a monomeric diol or dithiol curing agent and vein forcing fiber are especially useful for preparing fiber-reinforced composite structures, especially for dynamic applications.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: April 19, 1988
    Assignee: Lord Corporation
    Inventors: Donald R. Blenner, Karen M. Bond, Alan J. Hannibal
  • Patent number: 4717762
    Abstract: Electroactive polymers of the structure and formula ##STR1## in their neutral and ionized forms, where the backbone group R.sub.b is selected from or is a combination of five- and six-membered rings capable of aromatic and quinonoid bonding structures, R.sub.s is selected from aliphatic, aromatic and heterocyclic groups, x and y, are positive integers from 1 to 5 and m is a positive integer from 1 to about 10,000, together with a method of making them are disclosed.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: January 5, 1988
    Assignee: Honeywell Inc.
    Inventor: Samson A. Jenekhe
  • Patent number: 4710531
    Abstract: Self-extinguishing polycarbonates are disclosed, which consist of mixtures of polycarbonates with at least one salt of metals of the I and/or the II A and B Groups of the Periodic Table, and/or ammonium salts of organic carboxylic compounds having the general formula (I) ##STR1## and, as an adjuvant, at least one compound which is a member selected from the group consisting of the following classes of compounds:(i) a halogenated phenyl ether;(ii) a phthalimide or naphthalimide;(iii) an organic sulphone or a derivative thereof;(iv) an inorganic compound selected from the group consisting of halides of alkali metals or of alkaline earth metals, oxides of metals of the Groups IB,VIB,VIIB,IIIA,IVA and VIII of the Periodic Table, of the lanthanide group, carbon black and the residues of the pyrolysis of the organic acid salts of formula (I).
    Type: Grant
    Filed: August 19, 1983
    Date of Patent: December 1, 1987
    Assignee: Anic, S.p.A.
    Inventors: Giovanni Dozzi, Giorgio Della Fortuna, Salvatore Cucinella
  • Patent number: 4698215
    Abstract: Stabilized powder of red phosphorus, for use as flame-retardant agent, in particular for compositions on the basis of polymers, constituted by particles of red phosphorus enveloped by a thin capsule constituted by a first layer of Al(OH).sub.3 adhering on to the surface of red phosphorus individual particles, and by a second layer, superimposed onto said first layer, constituted by a crosslinked polyconsensation resin formed by urea-melamine-phenol-formaldehyde.
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: October 6, 1987
    Assignee: Saffa S.p.A.
    Inventors: Giancarlo Albanesi, Gianfranco Rinaldi
  • Patent number: 4691005
    Abstract: A polymer composition having poly-[2,5-(3-ethylthienylene)] doped with an anion is obtained by electrochemically polymerizing 3-ethylthiophene in an anion-containing salt as an electrolyte. Poly-[2,5-(3-ethylthienylene)] is obtained by electrochemically reducing the polymer composition thereby removing the anion therefrom. The aforementioned polymer composition and poly-[2,5-(3-ethylthienylene)] are novel substances.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: September 1, 1987
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Masaaki Sato, Susumu Tanaka, Kyoji Kaeriyama, Yoshio Suda
  • Patent number: 4678601
    Abstract: An electrically conductive polymer-latex composite is described. Organic polymeric material capable of being doped to provide an organic electroconductive material is dispersed in a latex and doped to provide an organic electroconductive polymer-latex composite.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: July 7, 1987
    Assignee: The Dow Chemical Company
    Inventors: George E. Ham, Wuu-Nan Chen, John M. McIntyre
  • Patent number: 4670487
    Abstract: Pulverulent red phosphorus stabilized with zinc fluoride and the use thereof as flame-retarding agent to thermoplastic moulding compositions.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: June 2, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Nielinger, Dietrich Michael, Heinz-Josef Fullmann, Rudolf Binsack, Harald Selbeck
  • Patent number: 4652396
    Abstract: There is disclosed a method for increasing the electrical conductivity of a porous synthetic polymeric material. The method comprises depositing an effective amount of a polyacetylene polymerization catalyst throughout the porous structure, subsequently exposing said material to acetylene under polymerization conditions, for a time sufficient to form polyacetylene within the porous structure, and finally doping the resultant product with a conductivity modifying amount of either an electron donor dopant or an electron acceptor dopant.There is also disclosed an improved electrodialysis process wherein an electrolyte solution is placed between opposite faces of two membranes, the first membrane being an anion exchange membrane and the second membrane being a cation exchange membrane, while being subjected to a primary electric field causing the cations in the electrolyte to pass through the cation exchange membrane and the anions to pass through the anion exchange membrane.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: March 24, 1987
    Assignee: Akzona Incorporated
    Inventor: Kenneth B. Wagener
  • Patent number: 4624761
    Abstract: An undoped semiconducting polymeric material is provided which is composed of a plurality of parallel sheets of regular two dimensional networks of polydiacetylene and polyacetylene chains interconnected by a plurality of spacer units. In the preferred embodiment the spacer units are methylene with the number of methylene units ranging from 5 to 8. The polymeric material is preferably formed by polymerizing a monomer having the structural formula CH.tbd.C--(CH.sub.2).sub.n --C.tbd.C--C.tbd.C--(CH.sub.2).sub.n --C.tbd.CH. In the preferred embodiment n has a value of 5 to 8.
    Type: Grant
    Filed: December 21, 1983
    Date of Patent: November 25, 1986
    Assignee: Case Western Reserve University
    Inventor: Jerome B. Lando
  • Patent number: 4620943
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 3,3'-N,N'-disubstituted-6,6'-bicarbazole-1,3,4-oxadiazole-2,5-diyl ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: November 4, 1986
    Assignee: Chevron Research Company
    Inventors: Peter Denisevich, Jr., Albert H. Schroeder, Victor P. Kurkov, Shigeto Suzuki
  • Patent number: 4619963
    Abstract: A radiation shielding composite sheet material contains lead fibers of more than 99% purity and containing 50 to 500 ppm tin. The fibers are of mean length of 0.5 to 1.3 mm and are imbedded in a synthetic resin, such that the composite sheet has a specific gravity greater than 4.0.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: October 28, 1986
    Assignee: Toray Industries, Inc.
    Inventors: Hisataka Shoji, Shigehiro Ouchi
  • Patent number: 4618633
    Abstract: A halogen-free self-extinguishing thermoplastic composition comprising as the flame retardant, one or more phosphorus-containing compounds or elemental phosphorous, a polyphenylene ether, a styrene-acrylonitrile copolymer, a phenol/aldehyde resin, a terpolymer of styrene, acrylonitrile and a hydroxy-containing ester of acrylic or methacrylic acid on which a polyphenylene ether is grafted, and optionally, a diene elastomer having grafted thereon styrene and acrylonitrile monomers.
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: October 21, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Christof Taubitz, Volker Muench, Juergen Hambrecht, Adolf Echte, Karl H. Illers
  • Patent number: 4615829
    Abstract: An electroconductive organic polymer exhibiting outstanding electroconductivity is described, containing an electron acceptor as a dopant, and having electroconductivity of not less than 10.sup.-6 S/cm, substantially comprising a linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III) ##STR1## wherein R represents a hydrogen atom or an alkyl group. This polymer can be obtained by oxidative polymerization of an aniline compound or a water-soluble salt thereof with an oxidizing agent in a reaction medium containing a protonic acid.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: October 7, 1986
    Assignee: Nitto Electric Industrial Co., Ltd.
    Inventors: Shohei Tamura, Sadamitsu Sasaki, Masao Abe, Hitoshi Nakazawa, Hisashi Ichinose, Keiji Nakamoto, Satoshi Yumoto
  • Patent number: 4616067
    Abstract: Electrically conductive polymer blends of an acetylene polymer, such as poly(acetylene), and a triblock thermoplastic elastomer, such as styrene-butadiene-styrene, are disclosed. In addition, a method for preparing such blends wherein the acetylene polymer is preferentially formed in the central elastomeric block of the triblock copolymer is disclosed. These blends exhibit high conductivity and elasticity upon doping with electron donors or electron acceptors.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: October 7, 1986
    Assignee: GTE Laboratories Incorporated
    Inventors: Kang I. Lee, Harriet Jopson
  • Patent number: 4610811
    Abstract: An iodine-containing conductive resin composition, said composition obtained by dispersing a carbon in a complex adduct of iodine and a polymer capable of forming a complex adduct with iodine and/or a mixture obtained by dispersing iodine in said polymer.
    Type: Grant
    Filed: March 5, 1985
    Date of Patent: September 9, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takakazu Yamamoto, Sadaaki Yamamoto, Sadao Kobayashi, Hiroshi Sukawa
  • Patent number: 4610809
    Abstract: A polymer that has been made of lignen and that contains sulphur, and into which a compound that activates the conductivity, such as iodine or ferric chloride, has been doped. The doped lignin polymer has properties of a semiconductor.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: September 9, 1986
    Assignee: Rauma-Repola Oy
    Inventors: Ermo Kaila, Anita Kinanen, Kalle Levon, Johannes Turunen, Jan-Erik sterholm, J. Johan Lindberg
  • Patent number: 4601849
    Abstract: An electrically conductive organic polymeric material is disclosed which comprises (a) an insoluble and infusible substrate with a polyacene-type skeletal structure having a hydrogen/carbon atomic ratio of from 0.60 to 0.15, said substrate being a heat-treated product of an aromatic condensation polymer consisting of carbon, hydrogen and oxygen, and (b) an electron donating doping agent, or an electron accepting doping agent, or both; said material having a higher electrical conductivity than the undoped substrate (a). The electrically conductive organic polymeric material can be produced by a process which comprises heat-treating an aromatic condensation polymer consisting of carbon, hydrogen and oxygen in a non-oxidizing atmosphere by heating it to a temperature of 400.degree. to 800.degree. C. to form a substrate having a hydrogen/carbon atomic ratio of from 0.06 to 0.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: July 22, 1986
    Assignee: Kanebo, Ltd.
    Inventor: Shizukuni Yata
  • Patent number: 4597896
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 3,6-N-substituted carbazole-1,3,4-oxadiazole-2,5-diyl ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: July 1, 1986
    Assignee: Chevron Research Company
    Inventors: Peter Denisevich, Jr., Albert H. Schroeder, Victor P. Kurkov, Shigeto Suzuki
  • Patent number: 4574108
    Abstract: Fibers and plastic materials reinforced with these fibers which have a diameter that varies along the fiber axis are provided. The fibers increase the strength of the material by reducing fiber pull out from the plastic matrix. The variation in diameter results in an undulating surface on the fiber which locks it into the matrix.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: March 4, 1986
    Assignee: University of Delaware
    Inventors: Stoyko C. Fakirov, Jerold M. Schultz
  • Patent number: 4568482
    Abstract: A one-step process for synthesizing electrically conducting polymers of iodine doped poly N-alkylcarbazoles is disclosed together with the conducting polymers made by the process.
    Type: Grant
    Filed: August 23, 1983
    Date of Patent: February 4, 1986
    Assignee: Honeywell Inc.
    Inventors: Samson A. Jenekhe, Barbara J. Fure
  • Patent number: 4560719
    Abstract: The invention provides a polyolefin-based rubber composition capable of giving a vulcanizate having excellent flame retardancy along with high mechanical strengths. The composition comprises: (A) 100 parts by weight of a polyolefin-based synthetic rubber, e.g. EPDM rubber; (B) 1 to 100 parts by weight of an organopolysiloxane; (C) 1 to 100 parts by weight of a bromine-containing flame retardant agent and/or red phosphorus; (D) 5 to 200 parts by weight of aluminum hydroxide and/or magnesium hydroxide; and (E) 0.5 to 20 parts by weight of zinc carbonate and/or manganese carbonate.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: December 24, 1985
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Tsutomu Nakamura, Kunio Itoh
  • Patent number: 4559372
    Abstract: The polyamides are fireproofed and, e.g., phosphine-inhibited, by formulating red phosphorus and at least one lanthanide or yttrium compound therewith.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: December 17, 1985
    Assignee: Rhone-Poulenc Specialities Chimiques
    Inventor: Bruno Giroud-Abel
  • Patent number: 4554093
    Abstract: An electrically conductive block copolymer of polyisoprene and polyacetyl and a method of making the same are disclosed. The polymer is prepared by first polymerizing isoprene with n-butyllithium in a toluene solution to form an active isoprenyllithium polymer. The active polymer is reacted with an equimolar amount of titanium butoxide and subsequently exposed to gaseous acetylene. A block copolymer of polyisoprene and polyacetylene is formed. The copolymer is soluble in common solvents and may be doped with I.sub.2 to give it an electrical conductivity in the metallic regime.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: November 19, 1985
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Mahmoud Aldissi
  • Patent number: 4548738
    Abstract: Environmentally stable polymer complexes of processible poly (3,6-N-alkylcarbazolyl alkenes) are disclosed with can be doped to a high electrical conductivity with charge transfer acceptors such as iodine together with a method of making the complexes.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: October 22, 1985
    Assignee: Honeywell Inc.
    Inventors: Samson A. Jenekhe, Barbara J. Fure
  • Patent number: 4533687
    Abstract: The invention provides a highly flame-retardant polyolefin-based rubber composition free from the problem of the formation of toxic or corrosive gases and a large volume of smoke by burning of conventional flame-retardant rubber compositions impregnated with a large amount of a halogen-containing flame retardant agent. The inventive rubber composition comprises (a) a synthetic rubber of polyolefin type, (b) an organopolysiloxane resin which is preferably formed of monofunctional siloxane units and tetrafunctional siloxane units in a molar ratio of 0.6/1.0 to 2.0/1.0, (c) red phosphorus and (d) aluminum hydroxide or magnesium hydroxide in a specified proportion.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: August 6, 1985
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kunio Itoh, Toshimichi Oshima, Tsutomu Nakamura
  • Patent number: 4525496
    Abstract: A water-in-oil emulsion of a water-soluble polymer such as acrylamide/acrylic acid copolymer having improved invertibility is prepared by (1) adding a portion of an inverting surfactant such as sorbitan trioleate having 20 polyoxyethylene units to a water-in-oil emulsion of water-soluble monomer, (2) polymerizing the monomer and (3) adding a remaining amount of inverting surfactant to the emulsion.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: June 25, 1985
    Assignee: The Dow Chemical Company
    Inventors: Timothy J. Adaway, Harold G. Fravel, Jr., James P. Easterly, Jr.
  • Patent number: 4522746
    Abstract: This invention relates to an electrically conductive p-doped poly(.beta.-diketone) and a process for forming same utilizing WCl.sub.6 as the polymerization catalyst. Doping of the resulting polymer with iodine dopant in either solution or the vapor phase or with tetracyanoquinodimethane (TCNQ) or AsF.sub.5 results in a conductive polymer having good stability in air.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: June 11, 1985
    Assignee: W. R. Grace & Co.
    Inventors: Yoshiyuki Okamoto, Edward F. Hwang
  • Patent number: 4510076
    Abstract: Electrically conductive polymer blends of an acetylene polymer, such as poly(acetylene), and a triblock thermoplastic elastomer, such as styrene-butadiene-styrene, are disclosed. In addition, a method for preparing such blends wherein the acetylene polymer is preferentially formed in the central elastomeric block of the triblock copolymer is disclosed. These blends exhibit high conductivity and elasticity upon doping with electron donors or electron acceptors.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: April 9, 1985
    Assignee: GTE Laboratories, Inc.
    Inventors: Kang I. Lee, Harriet Jopson
  • Patent number: 4510075
    Abstract: Electrically conductive polymer blends of an acetylene polymer and an elastomer having a low level of unsaturation are disclosed herein. The low level of unsaturation provides resistance to heat, light, oxygen and ozone and yet provides sufficient sites for crosslinking of the blend to provide increased stability. These blends exhibit high conductivity upon doping with electron donors or electron acceptors.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: April 9, 1985
    Assignee: GTE Laboratories, Inc.
    Inventors: Kang I. Lee, Harriet Jopson
  • Patent number: 4505846
    Abstract: The polymers resulting from reaction of a .alpha.,.alpha.,.alpha.',.alpha.'-tetrahaloxylene with a diamine of the type H.sub.2 NANH.sub.2, where A is a divalent aromatic moiety, may be doped with a variety of materials to afford electrically conducting polymeric compositions. Both p-type and n-type conductors may be formed either by chemical or electrochemical doping procedures.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: March 19, 1985
    Assignee: UOP Inc.
    Inventors: David W. House, Raymond J. Swedo
  • Patent number: 4505845
    Abstract: The polymers resulting from reaction of a 1,1,2,2-tetrahaloethane with a diamine of the type H.sub.2 NANH.sub.2, where A is a divalent aromatic moiety, may be doped with a variety of materials to afford electrically conducting polymeric compositions. Poly(ethyleneiminobenzene) is an especially useful material which may be prepared in good yield from the reactants in a dipolar aprotic solvent in the presence of a base.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: March 19, 1985
    Assignee: UOP Inc.
    Inventor: David W. House
  • Patent number: 4501686
    Abstract: Polymeric materials consisting essentially of a polymer of recurring units of a five-membered oxygen family heterocyclic ring which are selected from furan, thiophene, selenophene, tellurophene and derivatives thereof. The polymer is doped with anions of the specific type. A method for producing the polymeric materials is also described which comprises electrochemically polymerizing a five-membered oxygen family heterocyclic compound in coexistence with an acceptor with or without use of a supporting electrolyte in such a way that anions of the specific type are taken in the polymerized heterocyclic compound. The polymeric material is obtained in the form of a dense tenacious film.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: February 26, 1985
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shu Hotta, Tomiharu Hosaka, Nobuo Sonoda, Wataru Shimotsuma
  • Patent number: 4499008
    Abstract: A method of making an electrically conducting polymer is disclosed which includes poly(N-alkyl 3',3 carbazolyl) at least a portion of which is doped with a compatible charge transfer acceptor to provide p-type electrical conductivity, and in which the alkyl group is one selected from the group consisting of ethyl and methyl or a combination thereof.
    Type: Grant
    Filed: December 9, 1983
    Date of Patent: February 12, 1985
    Assignee: Honeywell Inc.
    Inventors: Stephen T. Wellinghoff, Samson A. Jenekhe, Thomas J. Kedrowski