High Polymeric (resinous) Antistatic Agents Patents (Class 260/DIG17)
  • Patent number: 5609969
    Abstract: The invention comprises a self supporting electronic packaging article comprising an insulative polymer overcoated with an antistatic/protective coating system comprising from about 8 mg/m.sup.2 to about 70 mg/m.sup.2 vanadium pentoxide, from about 36 mg/m.sup.2 to about 270 mg/m.sup.2 of a polymer latex having a hydrophilic functionality, and from about 210 mg/m.sup.2 to about 842 mg/m.sup.2 of a nonsulfonated protective topical binder, all of which may be contained in a single coating, or which may be contained in a two-layer coating system.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: March 11, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: William J. Clatanoff, Eric D. Morrison, Nanayakkara L. D. Somasiri
  • Patent number: 5082730
    Abstract: Disclosed herein are a stretched antistatic laminate film comprising at least one coating layer containing a polymer having pyrrolidium rings in the main molecular chain, and a polyester film layer, a magnetic recording medium using the same, and a recording material for heat sensitive transfer printing using the same.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: January 21, 1992
    Assignee: Diafoil Company, Limited
    Inventors: Naohiro Takeda, Yuzo Otani, Nariaki Okajima, Masahiro Kita
  • Patent number: 4719263
    Abstract: Thermoplastic and thermoset materials containing an effective amount of an antistatic agent for improving antistatic properties thereof, the antistatic agent is selected from homopolymers and copolymers of an epihalohydrin.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: January 12, 1988
    Assignee: The B. F. Goodrich Company
    Inventors: James P. Barnhouse, Simon H. Yu
  • Patent number: 4604425
    Abstract: The surface of a polymer material is modified by adding to the material a block copolymer. The block copolymer has a hydrophilic polymer portion and a polymer portion which is compatible with the polymer material to be modified. The block copolymer can be easily syntheized in the presence of a polymeric peroxide and can easily and permanently modify the surface of the polymer material.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: August 5, 1986
    Assignee: Nippon Oil and Fats Co.
    Inventors: Hiroshi Ohmura, Yoshihiro Oshibe, Masaharu Nakayama, Takashi Yamamoto
  • Patent number: 4579902
    Abstract: The present invention provides a permanently antistatic, injection moldable thermoplastic composition comprising a polybutylene terephthalate resin having an intrinsic viscosity in the range of about 0.7 to about 1.4 deciliters per gram measured in ortho-chlorophenol at 25.degree. C., an antistatic dopant comprising an electron acceptor compound, an electron donor compound, and polytetrafluoroethlene, and less than about 10 percent by weight based on the total weight of the molding composition of carbon fibers having lengths between about 0.1 and about 1.0 inch. Such a molding composition exhibits a volume resistivity of less than 1.times.10.sup.8 ohm-cm, exceptional low wear performance, excellent mechanical properties, and ease of manufacture.
    Type: Grant
    Filed: December 5, 1984
    Date of Patent: April 1, 1986
    Assignee: Celanese Corporation
    Inventor: David P. O'Brien
  • Patent number: 4416668
    Abstract: This invention relates to imides of .alpha.-olefin-maleic copolymers and to blends of imides of .alpha.-olefin-maleic copolymer and .alpha.-olefin-sulfur dioxide copolymers; and to systems, such as hydrocarbon fuels, containing such compositions as antistatic agents.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: November 22, 1983
    Assignee: Petrolite Corporation
    Inventor: Neil E. S. Thompson
  • Patent number: 4391741
    Abstract: A polyoxymethylene composition comprising (a) 100 parts by weight of polyoxymethylene, (b) 2 to 15 parts by weight of electrically conductive carbon black, and (c) 2 to 20 parts by weight of low-density polyethylene has excellent antistatic properties. Shaped articles produced by the polyoxymethylene composition show excellent effects on preventing noise due to static electricity and adhesion of dust.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: July 5, 1983
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Junzo Masamoto, Minoru Hamada, Isamu Suzuki, Takeo Yoshida
  • Patent number: 4382881
    Abstract: A method of preparing an antistatic coating exhibiting a desired value of surface resistivity which is substantially stable with respect to time takes as its starting point a commercial antistatic product having a synthetic resin base and substantially free from metallic particles but of which the surface resistivity, measured after mixing with its hardener and drying, is very much below the desired value. A compatible insulating resin is added to this product so as to raise the surface resistivity, still measured after mixing with the hardener and drying, to a value much higher than the desired value. The resulting product is then subjected to an accelerated ageing treatment causing a reduction in surface resistivity with terminal asymptotic development to the level of the desired value. Such a coating may be applied to radomes and other aircraft surface elements, and has the advantage that its conductivity does not increase appreciably with age.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: May 10, 1983
    Assignee: Avions Marcel Dassault-Breguet Aviation
    Inventor: Fernand J. Levy
  • Patent number: 4337188
    Abstract: A composition capable of being used for the manufacture of polyolefin film having so-called "cling" properties is disclosed. The composition consists essentially of(a) an intimate mixture of 75-98 weight percent of a first component and 2-25 weight percent of a second component, and(b) at least 200 ppm, based on the weight of (a), of an agent selected from the class consisting of(i) an organic compound having at least one polar group and at least one group selected from the class consisting of alkylene and alkylene interrupted by oxygen, said alkylene having at least eight carbon atoms and said compound being a liquid or a waxy solid;(ii) mineral oil;(iii) a liquid polyolefin; and(iv) an organic phosphate ester that is a liquid or waxy solid; and mixtures of such agents.A preferred agent is N,N-bis(2-hydroxyethyl) alkylamine where the alkyl group is C.sub.12 -C.sub.18 alkyl group. The first component is a blend of 10-100 percent of at least one homopolymer of ethylene having a density of 0.915-0.930 g/cm.sup.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: June 29, 1982
    Assignee: Du Pont Canada Inc.
    Inventors: David C. Climenhage, Walter R. Eadie
  • Patent number: 4314040
    Abstract: A concentrated antistatic composition adapted for incorporation into various polymers such as olefins is prepared by admixing a liquid ethoxylated amine antistatic agent, such as an N,N-bis-(2-hydroxyethyl)alkenyl or mixed alkenyl and alkyl (C.sub.6 -C.sub.18) amine, with various polymers such as, for example, polypropylene, heating to form a homogeneous liquid and rapidly cooling the mixture to form a solid antistatic agent. A normally liquid antistatic agent can thus be simply and readily blended into a polymer such as polyethylene as a dry, solid product to impart antistatic properties to the blended resin.
    Type: Grant
    Filed: February 11, 1980
    Date of Patent: February 2, 1982
    Assignee: Akzona Incorporated
    Inventors: Anthony J. Castro, James W. Stoll
  • Patent number: 4312966
    Abstract: A flame-retardant, antistatic synthetic polymeric fiber which is the product of the process of dispersing in said fiber about 1 percent to about 12 percent by weight of a polymer composition which is the reaction product of a polyester of a polyoxyalkylene compound having as a nucleus a nitrogen-containing reactive hydrogen containing compound with a reactant selected from the group consisting of at least one of an aliphatic or aromatic diacid, anhydride or acid halide thereof and a diol wherein at least one of said reactant is halogenated.
    Type: Grant
    Filed: June 20, 1980
    Date of Patent: January 26, 1982
    Assignee: BASF Wyandotte Corporation
    Inventors: David D. Newkirk, Robert B. Login, Basil Thir
  • Patent number: 4259087
    Abstract: This invention relates to compositions comprising (1) .alpha.-olefin-acrylonitrile copolymers and (2) polymeric polyamines; and to such compositions in combination with organic liquids such as hydrocarbon fluids in which such compositions are effective as antistatic agents.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: March 31, 1981
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, J. Irvine Knepper, Neil E. S. Thompson
  • Patent number: 4259474
    Abstract: The sulfur-containing polyoxyalkylenes having the formula: ##STR1## wherein E is --SW or a halogen atom; W is hydrogen, phenyl, alkyl of 1 to 4 carbon atoms, an alkali metal or ammonium ion, or a heterocyclic radical containing from 2 to 4 hetero atoms in a 5-or 6-membered ring which may be monocyclic or may be fused to an aromatic ring; A, C and D represent lower alkylene of 2 to 4 carbon atoms; B is alkylene of 2 to 8 carbon atoms; y and z are each integers having a value of 0 to 50; x is an integer having a value of from 2 to 50; and n is an integer having a value of from 1 to 30; and intermixtures of said polyoxyalkylenes.The above compounds display a wide variety of uses; however, all are active metal working lubricants.
    Type: Grant
    Filed: September 25, 1979
    Date of Patent: March 31, 1981
    Assignee: GAF Corporation
    Inventors: Paritosh M. Chakrabarti, Lindley S. Wood, David J. Tracy
  • Patent number: 4248934
    Abstract: The invention relates to fibre or filament mixtures consisting of high shrinkage side-by-side bifilar (mod)acrylic fibres or filaments separately containing TiO.sub.2 and carbon black and of normal fibres or filaments of polyamide, polyester, polyalkylene, poly(mod)acrylic, wool or cotton.
    Type: Grant
    Filed: July 5, 1978
    Date of Patent: February 3, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Martin Wandel, Helmut Engelhard, Ernst Gutschik, Manfred Reichardt, Geert Christoph
  • Patent number: 4226750
    Abstract: Two plastics which were heretofore impossible to combine, can be combined with each other if the one to be added is converted to a porodin gel by heating the same at a temperature of at least 180.degree. C. with a substance that does not dissolve the polymer, and then cooling to below 120.degree.. The porodin gel can then be easily admixed with the other plastic material in an amount of 1 to 50% by weight, preferably 5 to 20% by weight based on the weight of the modified plastic material. Examples are the incorporation of polyethylene or polypropylene or polymethyl methacrylate in polyvinyl chloride, or the incorporation of polystyrene in polypropylene, or the incorporation of polymethyl methacrylate in polyethylene.
    Type: Grant
    Filed: June 13, 1978
    Date of Patent: October 7, 1980
    Assignee: Muanyagipari Kutato Intezet
    Inventors: Miklos Dimitrov, Franciska K. Keleman nee Gulyas, Richard Marko, Tamas Pazonyi, Bela Pukanszky, Andras Riczko
  • Patent number: 4210556
    Abstract: A concentrated antistatic composition adapted for incorporation into various polymers such as olefins is prepared by admixing a liquid ethoxylated amine antistatic agent, such as an N,N-bis-(2-hydroxyethyl) alkenyl or mixed alkenyl and alkyl (C.sub.6 -C.sub.18)amine, with various polymers such as, for example, polypropylene, heating to form a homogeneous liquid and rapidly cooling the mixture to form a solid antistatic agent. A normally liquid antistatic agent can thus be simply and readily blended into a polymer such as polyethylene as a dry, solid product to impart antistatic properties to the blended resin.
    Type: Grant
    Filed: October 27, 1978
    Date of Patent: July 1, 1980
    Assignee: Akzona Incorporated
    Inventors: Anthony J. Castro, James W. Stoll
  • Patent number: 4201824
    Abstract: Novel linear hydrophilic polyurethane polymers are presented. The polymers provide outstanding soil-release, anti-soil redeposition and anti-static properties when applied to natural and synthetic textile substrates, especially textile substrates containing polyester fibers. These polyurethanes are particularly useful in detergent compositions.
    Type: Grant
    Filed: June 7, 1977
    Date of Patent: May 6, 1980
    Assignee: Rhone-Poulenc Industries
    Inventors: Robert Violland, Alain Lagasse
  • Patent number: 4165303
    Abstract: Polyamides and polyesters having greatly improved resistance to static electricity buildup are obtained by the incorporation of about 0.1 to 20 weight percent poly(alkylene ether) esters of polybasic acid. The antistatic properties of these polymers is significantly improved when poly(ethylene oxide) esters of dimer and trimer acids are employed.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: August 21, 1979
    Assignee: Emery Industries, Inc.
    Inventors: Irwin S. Schlossman, Robert E. Wiman
  • Patent number: 4151139
    Abstract: The invention provides novel polyaddition products of polyglycol diepoxides and polyamine derivatives, which products are useful as antistatic agents.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: April 24, 1979
    Assignee: Sandoz Ltd.
    Inventor: Richard Hochreuter
  • Patent number: 4147742
    Abstract: A concentrated antistatic composition adapted for incorporation into various polymers such as olefins is prepared by admixing a liquid ethoxylated amine antistatic agent, such as an N,N-bis-(2-hydroxyethyl) alkenyl or mixed alkenyl and alkyl (C.sub.6 -C.sub.18) amine, with various polymers such as, for example, polypropylene, heating to form a homogeneous liquid and rapidly cooling the mixture to form a solid antistatic agent. A normally liquid antistatic agent can thus be simply and readily blended into a polymer such as polyethylene as a dry, solid product to impart antistatic properties to the blended resin.
    Type: Grant
    Filed: October 15, 1975
    Date of Patent: April 3, 1979
    Assignee: Akzona Incorporated
    Inventors: Anthony J. Castro, James W. Stoll
  • Patent number: 4144206
    Abstract: A static dissipating heat curable silicone rubber composition comprising a diorganopolysiloxane polymer, a filler and a peroxide curing catalyst and as the static discharging agent a polyether-polysiloxane copolymer.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: March 13, 1979
    Assignee: General Electric Company
    Inventor: Gerald E. Symeon
  • Patent number: 4091048
    Abstract: Powder coating compositions are disclosed which, exclusive of pigments and other nonreactive components, comprise a coreactive mixture of: (A) a copolymer of between about 5 and about 20 weight percent of a glycidyl ester of a monoethylenically unsaturated acid and between about 95 to about 80 weight percent of other monoethylenically unsaturated monomers, said copolymer having a glass transition temperature in the range of 40.degree. C to 90.degree. C and a number average molecular weight (M.sub.n) of between about 2500 and about 8500; and (B) an organic carboxylic acid anhydride crosslinking agent, said anhydride being present in the amount of from about 0.4 to about 1.0 anhydride groups for each epoxy group in the copolymer.
    Type: Grant
    Filed: December 18, 1973
    Date of Patent: May 23, 1978
    Assignee: Ford Motor Company
    Inventors: Santokh S. Labana, Ares N. Theodore
  • Patent number: 4091049
    Abstract: Powder coating compositions are disclosed which, exclusive of pigments and other nonreactive components, comprise a coreactive mixture of: (A) a copolymer of between about 8 and about 30 weight percent of a glycidyl ester of a monoethylenically unsaturated acid and between about 92 and about 70 weight percent of other monoethylenically unsaturated monomers, said copolymer having a glass transition temperature in the range of 40.degree. C to 90.degree. C and a number average molecular weight (M.sub.n) in the range of about 2500 to about 8500; and (B) a carboxyl terminated crosslinking agent in the amount of 0.8 to 1.2 carboxyl groups for each epoxy group in the copolymer.
    Type: Grant
    Filed: December 18, 1973
    Date of Patent: May 23, 1978
    Assignee: Ford Motor Company
    Inventors: Santokh S. Labana, Yun-Feng Chang
  • Patent number: 4084048
    Abstract: Polyfunctional polymers of which the side branches contain dioxathiazole-2-oxide groups are described. They possess the reactivity of dioxathiazole-2-oxide and can in addition contain other reactive groups. They can be used for the manufacture of moldings, coatings or adhesives.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: April 11, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Naarmann, Heinz Pohlemann
  • Patent number: 4044070
    Abstract: Powder coating compositions are disclosed which comprise a blend of coreactable, thermosettable copolymers one of which has at least two different functional groups while the other is qualitatively monofunctional and quantitatively polyfunctional. Ordinarily, the polymer having at least two different functional groups, will be quantitatively polyfunctional and qualitatively difunctional although it may contain more than two different functional groups. In the preferred embodiments, the first or difunctional copolymer of the blend has either (1) epoxy functionality and amide functionality, (2) epoxy functionality and hydroxy functionality, (3) carboxy functionality and amide functionality, or (4) carboxy functionality and hydroxy functionality and is crosslinkable with the second copolymer through at least two different types of functional groups on the first copolymer.
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: August 23, 1977
    Assignee: Ford Motor Company
    Inventors: Santokh S. Labana, Ares N. Theodore
  • Patent number: 4041001
    Abstract: A method for preparing wash-resistant antistatic synthetic fibrous substrates and compositions utilized therefor are disclosed. The method comprises applying a novel antistatic composition comprising a sulfonated polymer and a polyhydroxy organic compound to a synthetic fibrous substrate, curing the antistatic composition and thereby forming a wash-resistant antistatic coating for the substrate.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: August 9, 1977
    Assignee: National Starch and Chemical Corporation
    Inventors: Chester D. Szymanski, Ronald DeMartino
  • Patent number: 4035441
    Abstract: A polyester filament in which a polyether-polyester block copolymer is dispersed as fine striae along the filament axis, at least one of which is substantially endless. Process for preparing the same includes a melt spinning apparatus with static mixing elements interposed between separate molten polymer feed passageways and spinneret holes.
    Type: Grant
    Filed: June 24, 1974
    Date of Patent: July 12, 1977
    Assignee: Toray Industries, Inc.
    Inventors: Tadakazu Endo, Masanori Takeuchi, Tuneo Hanada, Kiyoshi Nakagawa, Hideo Komatsu, Itaru Nakamura
  • Patent number: 4032595
    Abstract: The reaction product of a polyalkoxylated triglyceride with an ester of oxalic or malonic acid in the ratio of at least 2 molecules of the latter to 1 molecule of the former, also synthetic polymers containing a minor proportion of the reaction product.
    Type: Grant
    Filed: August 5, 1975
    Date of Patent: June 28, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Ian Stuart Fisher, James Eric McIntyre
  • Patent number: 4014955
    Abstract: The cross-linked macromolecular polyethers containing ionic bonds are obtained by reacting polyhydric phenols which contain amino groups (Mannich bases) on the one hand with compounds which contain on average more than one epoxide group per molecule, and on the other hand with organic compounds which contain at least 2 halogen atoms. The reaction is on the one hand a polyaddition, and on the other a polyquaternization. The adducts manufactured in this way have a reduced tendency to take on a static charge and can be used with advantage in the textile and paper sectors.
    Type: Grant
    Filed: February 7, 1974
    Date of Patent: March 29, 1977
    Assignee: Ciba-Geigy AG
    Inventor: Alfred Renner
  • Patent number: 4012366
    Abstract: Polymers which contain hydroxamic acid-O-sulfonyl groups in the side chains and which accordingly can undergo important substitution reactions. The polymers may also contain other reactive groups and may be used for the manufacture of moldings, coatings or adhesives.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: March 15, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Naarmann, Heinz Pohlemann
  • Patent number: 3998905
    Abstract: Powder coating compositions are disclosed which comprise a blend of coreactable, thermosettable copolymers one of which has at least two different functional groups while the other is qualitatively monofunctional and quantitatively polyfunctional. Ordinarily, the polymer having at least two different functional groups, will be quantitatively polyfunctional and qualitatively difunctional although it may contain more than two different functional groups. In the preferred embodiments, the first or difunctional copolymer of the blend has either (1) epoxy functionality and amide functionality, (2) epoxy functionality and hydroxy functionality, (3) carboxy functionality and amide functionality, or (4) carboxy functionality and hydroxy functionality and is crosslinkable with the second copolymer through at least two different types of functional groups on the first copolymer.
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: December 21, 1976
    Assignee: Ford Motor Company
    Inventors: Santokh S. Labana, Ares N. Theodore
  • Patent number: 3989866
    Abstract: Disclosed herein are novel synthetic polyamide fibers of generally triangular cross-sectional area having fibrils of polystyrene dispersed throughout as a discontinuous phase. The polyamide fibers are especially useful because of their enhanced antisoiling properties and can be advantageously employed in carpets, upholstery coverings, etc., where soiling is a problem.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: November 2, 1976
    Assignee: Akzona Incorporated
    Inventors: Brewster B. Eskridge, Boyce M. Lyon
  • Patent number: 3988158
    Abstract: Antistatic and antifoaming agents for use with light sensitive silver halide photographic materials comprised of polymerized pyridyl-type compounds are disclosed.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: October 26, 1976
    Assignee: Konishiroku Photo Industry Co., Inc.
    Inventors: Toshio Muramatsu, Koichi Nagayasu, Masayuki Kimura, Sadatugu Terada, Masayoshi Mayama
  • Patent number: 3976716
    Abstract: Powder coating compositions are disclosed which comprise a blend of coreactable, thermosettable copolymers each of which have at least two different functional groups. Ordinarily, these polymers will be qualitatively difunctional, although they may contain more than two different functional groups, and quantitatively polyfunctional. At least one of the copolymers has epoxy functionality as one of its two or more different functionalities. Thus, in the preferred embodiments, the first copolymer of the blend has epoxy functionality and a second functionality selected from amide functionality, anhydride functionality and hydroxy functionality and is crosslinkable with the second copolymer through at least two different types of functional groups on the first copolymer.
    Type: Grant
    Filed: August 21, 1975
    Date of Patent: August 24, 1976
    Assignee: Ford Motor Company
    Inventors: Santokh S. Labana, Ares N. Theodore
  • Patent number: 3976718
    Abstract: Powder coating compositions are disclosed which comprise a blend of coreactable, thermosettable copolymers each of which have at least two different functional groups. Ordinarily, these polymers will be qualitatively difunctional, although they may contain more than two different functional groups, and quantitatively polyfunctional. At least one of the copolymers has epoxy functionality as one of its two or more different functionalities. Thus, in the preferred embodiments, the first copolymer of the blend has epoxy functionality and a second functionality selected from amide functionality, anhydride functionality and hydroxy functionality and is crosslinkable with the second copolymer through at least two different types of functional groups on the first copolymer.
    Type: Grant
    Filed: August 21, 1975
    Date of Patent: August 24, 1976
    Assignee: Ford Motor Company
    Inventors: Santokh S. Labana, Ares N. Theodore
  • Patent number: 3976719
    Abstract: Powder coating compositions are disclosed which comprise a blend of coreactable, thermosettable copolymers each of which have at least two different functional groups. Ordinarily, these polymers will be qualitatively difunctional, although they may contain more than two different functional groups, and quantitatively polyfunctional. At least one of the copolymers has epoxy functionality as one of its two or more different functionalities. Thus, in the preferred embodiments, the first copolymer of the blend has epoxy functionality and a second functionality selected from amide functionality, anhydride functionality and hydroxy functionality and is crosslinkable with the second copolymer through at least two different types of functional groups on the first copolymer.
    Type: Grant
    Filed: August 21, 1975
    Date of Patent: August 24, 1976
    Assignee: Ford Motor Company
    Inventors: Santokh S. Labana, Ares N. Theodore
  • Patent number: 3976717
    Abstract: Powder coating compositions are disclosed which comprise a blend of coreactable, thermosettable copolymers each of which have at least two different functional groups. Ordinarily, these polymers will be qualitatively difunctional, although they may contain more than two different functional groups, and quantitatively polyfunctional. At least one of the copolymers has epoxy functionality as one of its two or more different functionalities. Thus, in the preferred embodiments, the first copolymer of the blend has epoxy functionality and a second functionality selected from amide functionality, anhydride functionality and hydroxy functionality and is crosslinkable with the second copolymer through at least two different types of functional groups on the first copolymer.
    Type: Grant
    Filed: August 21, 1975
    Date of Patent: August 24, 1976
    Assignee: Ford Motor Company
    Inventors: Santokh S. Labana, Ares N. Theodore
  • Patent number: 3976715
    Abstract: Powder coating compositions are disclosed which comprise a blend of coreactable, thermosettable copolymers each of which have at least two different functional groups. Ordinarily, these polymers will be qualitatively difunctional, although they may contain more than two different functional groups, and quantitatively polyfunctional. At least one of the copolymers has epoxy functionality as one of its two or more different functionalities. Thus, in the preferred embodiments, the first copolymer of the blend has epoxy functionality and a second functionality selected from amide functionality, anhydride functionality and hydroxy functionality and is crosslinkable with the second copolymer through at least two different types of functional groups on the first copolymer.
    Type: Grant
    Filed: August 21, 1975
    Date of Patent: August 24, 1976
    Assignee: Ford Motor Company
    Inventors: Santokh S. Labana, Ares N. Theodore
  • Patent number: 3963803
    Abstract: An acrylic fiber having excellent antistatic properties is obtained by mixing a polymer (A) consisting mainly of acrylonitrile with a copolymer (B) consisting mainly of a polyetherpolyester block copolymer consisting of a polyester and compound represented by the general formula (1): ##EQU1## (wherein each of m and n is O or a positive integer, wherein 25 .ltoreq. m + n .ltoreq. 1000, and m .gtoreq. 10).
    Type: Grant
    Filed: September 24, 1973
    Date of Patent: June 15, 1976
    Assignee: Toray Industries, Inc.
    Inventors: Hiroyoshi Tanaka, Haruo Obara, Teruo Koseki, Hajime Machida, Michihiko Tanaka, Shigeru Fujii
  • Patent number: 3959404
    Abstract: Powder coating compositions are disclosed which, exclusive of pigments and non-reactive components, comprise a coreactive mixture of: (A) a copolymer of between about 8 and about 30 weight percent of a glycidyl ester of a monoethylenically unsaturated acid and between about 92 and about 70 weight percent of other monoethylenically unsaturated monomers, said copolymer having a glass transition temperature in the range of 40.degree. to 90.degree.C and a number average molecular weight (M.sub.n) of between about 2500 and about 8500; and (B) a phenolic hydroxy terminated compound in the amount of between about 0.8 and 1.2 phenolic hydroxy groups for each epoxy group in the copolymer.
    Type: Grant
    Filed: December 18, 1973
    Date of Patent: May 25, 1976
    Assignee: Ford Motor Company
    Inventors: Santokh S. Labana, Ares N. Theodore