Nonmetal Compound Dnrm Patents (Class 524/438)
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Patent number: 4920167Abstract: Disclosed is dispersion of a polyurethane-urea polymer in a continuous phase. This dispersion contains about 0.1 to about 5 parts by weight of an ionizable, non-volatile salt per 100 parts by weight of polyurethane-urea polymer. Polyurethane-urea coatings made from this dispersion have excellent static dissipative properties.Type: GrantFiled: November 10, 1988Date of Patent: April 24, 1990Assignee: The Dow Chemical CompanyInventors: Sven H. Ruetman, Joginder N. Anand, G. Robert Collins
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Patent number: 4909959Abstract: The subject of the invention is mainly an electrically conductive polymer containing repeated units derived from 3-alkythiophenes in which the alkyl substituent contains from six to nine carbon atoms.The invention also relates to a process for manufacturing these polymers and to electroconductive devices containing them.Type: GrantFiled: April 1, 1987Date of Patent: March 20, 1990Assignee: Solvay & Cie (societe Anonyme)Inventors: Marc Lemaire, Jean Roncali, Robert Garreau, Francis Garnier, Etienne Hannecart
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Patent number: 4849469Abstract: Thermoplastic compositions and composites are produced which have fewer and smaller voids with more consistent dimensions compared to conventional unreinforced and fiber reinforced thermoplastics. The high modulus thermoplastic contains silicone semi-interpenetrating polymer networks which are formed by vulcanization within the thermoplastic and initiated during melt processing. Parts molded from the compositions are more homogeneous, with evenly distributed voids, thus reducing the possibility of strss fractures. The compositions are particularly useful in the molding in thick cross-section and variable thickness parts and have been found to have increased thermal stability.Type: GrantFiled: September 21, 1987Date of Patent: July 18, 1989Assignee: ICI Americas Inc.Inventors: Jane M. Crosby, MaryGail K. Hutchins, Susan K. Ward
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Patent number: 4828614Abstract: A ferrophosphorous composition with improved conductivity and passivation resistance in prepared by treating ferrophosphorus particles with an aqueous solution containing a dilute mineral acid and ions of chromium and metal selected from the group consisting of zinc, strontium, calcium, barium, lead or copper. In a preferred embodiment, the concentration of chromium and zinc ions in the solution is in the range of about 2 grams/liter to about 10 grams/liter, and the treatment time is from about 2 to about 6 minutes.The treated ferrophosphorous particles can be formulated in a suitable resin binder for use as corrosion resistant coatings, weldable coatings, EMI shielding coatings or electrically conductive coatings. The treated ferrophosphorus particles can also be used in powder metallurgy applications.Type: GrantFiled: December 7, 1987Date of Patent: May 9, 1989Inventors: George T. Miller, Gerald L. Evarts
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Patent number: 4778833Abstract: Composition for the preservation of wood containing a wood preservative, such as a boron compound or a fluorine compound, in a polymer or polymer composition, which upon contact with water releases the wood preservative. Said composition is introduced into a hole in the wood or in a wood construction, whereafter the hole is sealed.Type: GrantFiled: December 11, 1986Date of Patent: October 18, 1988Assignee: Nederlandse Centrale Organisatie voor Toegepast- Natuurweten- Schappelijk OnderzoekInventors: Jan W. P. T. Van der Drift, Jan La Brijn
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Patent number: 4775420Abstract: Complex pigment compositions for the coating of paper, comprising an aqueous phase, at least one pigment of mineral origin, a binding agent, optionally various customary additives, and a dispersing agent comprised of carboxyl-containing polymers which are water soluble and are converted to form salts. The polymers are obtained by known polymerization processes. The dispersing agent(a) has a specific viscosity (measured on the sodium salt) of between 0.25 and 2; and(b) is converted to the salt form to the extent of at least 60% by at least one salt-forming agent which has a polyvalent function.These complex pigment compositions have very low viscosities. They may also simultaneously contain diverse pigments, such as kaolin, titanium dioxode, and calcium carbonate, without suffering the usual increase in viscosity and the risk of setting.Type: GrantFiled: March 30, 1987Date of Patent: October 4, 1988Assignee: Coatex, S.A.Inventors: Olivier Gonnet, Jean Vallas
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Patent number: 4737557Abstract: A 3-n-alkylthiophene polymer of the general formula: ##STR1## (wherein n stands for an integer in the range of 5 to 11 and m for an integer in the range of 80 to 350) and a composition containing this polymer.Type: GrantFiled: March 20, 1987Date of Patent: April 12, 1988Assignees: Agency of Industrial Science and Technology, Ministry of International Trade and IndustryInventors: Masaaki Sato, Susumu Tanaka, Kyoji Kaeriyama, Yoshio Suda
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Patent number: 4678822Abstract: A bonded fibre insulation batt is produced by ragging, teasing and otherwise doffering fibres of wool and/or synthetic or other natural fibres such as monoacrylic, acrylic, polyamide, polyester or cotton fibres, so as to form a sliver with said fibres randomly dispersed. The sliver is passed through a lapper which causes the sliver to lap on itself to form a mat of desired thickness. The sliver is sprayed with a resin emulsion prior to lapping so that the mat produced is throughly impregnated. The resin emulsion can include a fireproofing resin, and preferably a pesticide and a smoke retardant. The impregnated mat passes to a dryer to remove a substantial part of the water content thereof with minimal heating of the fibres. Following the water removal the mat passes to an oven to cure the resin thus forming the insulating batt which can be cut to desired size.Type: GrantFiled: October 31, 1985Date of Patent: July 7, 1987Assignees: Maxwell Victor Lane, George KaddisInventor: Richard L. Lewellin
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Patent number: 4649168Abstract: The present invention relates to a process for the preparation of flame-resistant polycarbonate moulding compositions, which is characterized in that, besides the addition of alkali metal salts, there is incorporation of tetrafluoroethylene polymers as an intimate mixture with halogen-free graft polymers, these intimate mixtures being prepared by coagulation of the appropriate emulsion mixtures, and to the polycarbonate moulding compositions obtainable by the process according to the invention.Type: GrantFiled: November 13, 1985Date of Patent: March 10, 1987Assignee: Bayer AktiengesellschaftInventors: Hans-Jurgen Kress, Ludwig Bottenbruch, Mark Witman, Klaus Kircher, Christian Lindner, Karl-Heinz Ott
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Patent number: 4615829Abstract: 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: GrantFiled: November 13, 1984Date of Patent: October 7, 1986Assignee: Nitto Electric Industrial Co., Ltd.Inventors: Shohei Tamura, Sadamitsu Sasaki, Masao Abe, Hitoshi Nakazawa, Hisashi Ichinose, Keiji Nakamoto, Satoshi Yumoto
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Patent number: 4578419Abstract: Iodine and certain iodine compounds are used as activators (oxidizers) in otherwise conventional autodeposition coating compositions, resulting in improved coating quality. When at least one unsaturated recurring unit polymer is comprised within the latex, corrosion resistance of the coating is also improved.Type: GrantFiled: March 28, 1985Date of Patent: March 25, 1986Assignee: Amchem Products, Inc.Inventor: Wilbur S. Hall
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Patent number: 4554305Abstract: Autodeposition unsaturated latex baths which are hydrogen peroxide-free (using iodine or certain iodine salts or free acids as the oxidizer) and which are hydrofluoric acid-free (using, preferably, acetic acid) afford coatings which can incorporate silicate-containing pigments, fillers, and other ingredients.Type: GrantFiled: March 28, 1985Date of Patent: November 19, 1985Assignee: Amchem Products, Inc.Inventor: Wilbur S. Hall
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Patent number: 4524191Abstract: A polyester composition for molding having improved molding properties is disclosed, comprising 100 parts by weight of a polyester comprising mainly polyethylene terephthalate and 0.05 to 10 parts by weight of an aromatic polyamide as a nucleating agent which is uniformly dispersed in the polyester in a substantial size of 50 .mu.m or less. A process for producing the polyester composition is also disclosed.Type: GrantFiled: January 31, 1983Date of Patent: June 18, 1985Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Katuyuki Nakamura, Kazuya Neki
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Patent number: 4488986Abstract: Electrically conductive polymeric systems having electrical conductivities greater than 10.sup.-4 S/cm are prepared by a method wherein a polyarylene compound which contains one or more chain members of the formula ##STR1## where n is greater than 1, preferably from 5 to 50, R is a nitrile, acid amide, carboxyl or ester group, R.sup.1 and R.sup.2 are each hydrogen or a nitrile, acid amide, carboxyl or ester group, with the proviso that in each case one of the radicals R.sup.1 and R.sup.2 is hydrogen and the other is a nitrile, acid amide, carboxyl or ester group, and Y is an aromatic radical, preferably phenylene, is doped, in the absence of moisture and oxygen, with from 0.03 to 0.9 mole percent of an electron-attracting or electron-donating complexing agent.Type: GrantFiled: August 2, 1983Date of Patent: December 18, 1984Assignee: BASF AktiengesellschaftInventors: Herbert Naarmann, Petr Simak, Gernot Kohler
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Patent number: 4481116Abstract: A novel cationic aminoplastic water-dispersible resin based on melamine, formaldehyde and glyoxal salified by a mineral or organic protonic acid, or by a mixture of such acids, selected from the group comprising hydrochloric, nitric, orthophosphoric, acetic, formic acids; it contains molar ratios, for 1 mole of melamine, of 2 to 4 moles of formaldehyde, 0.1 to 3 moles of glyoxal and 0.5 to 1 mole of mineral or organic protonic acid, or the equivalent quantity of a mixture thereof.Type: GrantFiled: December 9, 1982Date of Patent: November 6, 1984Assignee: Societe Francaise HoechstInventors: Jean Cabestany, Claude Trouve
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Patent number: 4373050Abstract: Method and composition for applying a coating to a metallic surface, the surface being immersed in an acidic aqueous coating composition comprising dispersed solid particles of an organic polymeric resinous coating-forming material and an oxidizing agent, wherein the weight or thickness of the coating formed on the surface is a function of the time the surface is immersed in the composition.Type: GrantFiled: June 9, 1980Date of Patent: February 8, 1983Assignee: Amchem Products, Inc.Inventors: Lester Steinbrecher, Wilbur S. Hall
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Patent number: 4356036Abstract: An anti-corrosion coating for metals comprising a mixture of aluminum paste or zinc paste, microcrystalline wax, aromatic hydrocarbon resin, chlorinated rubber, neutral barium sulfonate, chlorinated solvent, aromatic hydrocarbon solvent, and mineral spirits.Type: GrantFiled: July 2, 1981Date of Patent: October 26, 1982Inventor: Nicolas Kaliardos
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Patent number: 4333977Abstract: A wear-resistant and chemically-inert article made from a sintered mixture of polytetrafluoroethylene, graphite fibers, and fluorinated graphite.Type: GrantFiled: August 27, 1980Date of Patent: June 8, 1982Assignee: Waters Associates, Inc.Inventors: Louis Abrahams, Thomas P. J. Izod