Patents Examined by Murray Tillman
  • Patent number: 4076676
    Abstract: A water-borne thermosetting coating composition comprising a stable dispersion or solution of:(A) a terminally functional epoxy resin reacted with(B) a tertiary amine; and(C) a nitrogen resinIs provided. Such composition is useful for spray-, flow-, dip-, roller-, and electro-coating metal and paper substrates and provides coatings of improved properties, including high degree of flexibility during machining and stamping of the coated articles, corrosion resistance, gloss, hydrolytic stability, and non-adulterating of foods and beverages in contact therewith.
    Type: Grant
    Filed: February 4, 1975
    Date of Patent: February 28, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Eugene G. Sommerfeld
  • Patent number: 4075285
    Abstract: A rubber-modified polystyrene resin composition consisting essentially of a rubber-modified polystyrene and a transparent, resinous styrene-butadiene block copolymer containing 65 to 95% by weight of styrene and 5 to 35% by weight of butadiene. This resin composition is excellent in impact strength, elongation, flexural stress clouding, hinging endurance, and surface gloss.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: February 21, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Minoru Tabana, Shizuo Narisawa, Tatsuyuki Mitsuno, Hiroshi Maki
  • Patent number: 4073831
    Abstract: A novel thermoplastic resin composition consisting essentially of polystyrene and a styrene-butadiene block copolymer. This resin composition is transparent, is excellent in mechanical properties, particularly in elongation, impact strength, and stiffness, is not liable to become cloudy on being bent, and is favorable in hinging endurance as well as in thermal resistance.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: February 14, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Minoru Tabana, Tatsuyuki Mitsuno, Hiroshi Maki, Shizuo Narisawa
  • Patent number: 4073826
    Abstract: A tackifier system which includes the reaction product of oxirane bearing materials with alkyl phenol novolacs for elastomers of alpha-olefin polymers which are sulfur curable.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: February 14, 1978
    Assignee: Schenectady Chemicals, Inc.
    Inventors: Thomas M. Galkiewicz, Kenneth C. Petersen, John L. Sullivan
  • Patent number: 4073776
    Abstract: A tackifier system which includes the reaction product of oxirane bearing materials with alkyl phenol novolacs for elastomers of alpha-olefin polymers which are sulfur curable.The invention is directed to reaction products of alkyl phenol novolacs with oxirane bearing materials. The reaction products of alkyl phenol novolacs with oxirane bearing materials have been found to be excellent tackifiers for various types of elastomers.Further, the invention is directed to elastomer compositions containing reaction products of alkyl phenol novolacs with oxirane bearing materials. Elastomer compositions containing the reaction products of alkyl phenol novolac resins with oxirane bearing materials exhibit excellent tack properties.Tackifiers are employed in elastomeric compositions to produce wider practical ranges of elastomer properties, such as stiffness and tack. Tackifiers are used to improve adhesion, and sometimes cohesion without necessarily stiffening or softening the elastomer composition.
    Type: Grant
    Filed: January 28, 1975
    Date of Patent: February 14, 1978
    Assignee: Schenectady Chemicals, Inc.
    Inventors: Thomas M. Galkiewicz, Kenneth C. Petersen, John L. Sullivan
  • Patent number: 4073788
    Abstract: The process for producing polyamide acid and polyimide polymers for use as coating materials by reacting an aromatic dianhydride reactant with an aromatic diamine reactant to produce a polyamide acid polymer wherein said reactants are present in approximately equal molar quantities, by utilizing the steps of forming an anhydrous mixture of an aromatic dianhydride reactant and an aromatic diamine reactant in an organic solvent wherein the reactants are in the molar ratio of about two-to-one, reacting said reactants at a temperature below that at which imidization occurs to form an amide acid intermediate having two free carboxyl groups each ortho to an amide group, and further reacting said amide acid intermediate with a reactant of the character of the original reactant initially present in the lesser amount with said additional reactant being in the molar amount equal to the molar amount of said lesser initial reactant thereby to form a polyamide acid polymer for use as a coating material.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: February 14, 1978
    Assignee: General Electric Company
    Inventor: Marvin A. Peterson
  • Patent number: 4072592
    Abstract: A radiation curable coating composition for various substrates containing an adduct of acrylic acid and an epoxy resin (which may be modified with an anhydride, such as maleic anhydride), and a reactive acrylate monomer vehicle. The coating composition can be pigmented and can also contain additives commonly used in coatings, such as wetting agents and flow control agents. The coating composition does not require the usual hydrocarbon vehicles that give rise to air pollution problems. Surface gloss of a UV cured film obtained from a pigmented coating composition can be increased by using a photosensitizer combination of 2-chlorothioxanthone and a phenyl ketone, such as benzophenone. Adhesion of a cured coating is improved by replacing the tertiary amine co-sensitizer, at least in part, with dimethylaminoethyl acrylate.
    Type: Grant
    Filed: September 30, 1975
    Date of Patent: February 7, 1978
    Assignee: Mobil Oil Corporation
    Inventors: George B. Due, John P. Guarino
  • Patent number: 4072466
    Abstract: The invention relates to a water soluble textile finishing resin composition, the process for preparing the same, the process for finishing textile materials therewith, and to the textile materials so treated. More particularly, the invention relates to infinitely water-soluble mixtures of substantially fully etherified substantially fully methylolated melamine resins and urea:formaldehyde:glyoxal reaction products which are characterized by having a low free formaldehyde content and excellent storage stability, to the method for preparing the same, to the process for treating textile materials therewith and to the textile materials so treated.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: February 7, 1978
    Assignee: American Cyanamid Company
    Inventor: David T. Hermann
  • Patent number: 4071424
    Abstract: A photopolymerizable composition comprising at least one polymerizable ethylenically unsaturated material, for example, an ethylenically unsaturated monomer, and a photosensitive catalyst comprisingA. at least one photosensitizer having the structure ##STR1## where X is >C=O, >CR.sub.1 R.sub.2 or >CR.sub.3 OR.sub.4, especially >C=O, R.sub.1 to R.sub.4 and hydrogen or hydrocarbyl groups, n is 0 or 1, and the groups A are hydrocarbyl or substituted hydrocarbyl groups, the groups A being aromatic or substituted aromatic when n is 1 and X is >CR.sub.1 R.sub.2 and when n is 0, andB. at least one reducing agent, for example, an amine or a phosphine, capable of reducing the photosensitizer when the photosensitizer is in an excited state.
    Type: Grant
    Filed: February 11, 1975
    Date of Patent: January 31, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Edward Charles Dart, Josef Nemcek
  • Patent number: 4069123
    Abstract: Improved pressure sensitive adhesive compositions based on acrylate ester polymers and the substrates coated therewith. The improved adhesive and cohesive properties result from the addition to the polymer of specified quinone ultraviolet sensitizers and the subsequent crosslinking thereof by exposure to an ultraviolet source.
    Type: Grant
    Filed: October 24, 1972
    Date of Patent: January 17, 1978
    Assignee: National Starch & Chemical Corporation
    Inventors: Martin M. Skoultchi, Irwin J. Davis
  • Patent number: 4066524
    Abstract: Improved process for the preparation of water-soluble, high molecular weight imidazole polymers comprising irradiating an aqueous solution of an imidazole monomer and a chemical, free-radical initiator under conditions to cause radiation-induced polymerization of the monomer, terminating radiation of the system when less than all the monomer has been converted to polymer and when the temperature of the system is such that the chemical, free-radical initiator dissociates with the proper rate to sustain polymerization, and continuing the polymerization to completion by the free radicals generated by the thermal decomposition of the chemical initiator. The radiation-induced polymerization is terminated before more than 95% of the monomer is converted to polymer and preferably before 90% of the monomer is converted to polymer. The remaining monomer is converted to polymer by the free radicals generated by the thermal decomposition of the chemical initiator.
    Type: Grant
    Filed: August 18, 1975
    Date of Patent: January 3, 1978
    Assignee: Hercules Incorporated
    Inventor: Charalambos J. Phalangas
  • Patent number: 4065428
    Abstract: Disclosed herein are polyblend molding compositions which comprise (A) a polymethylmethacrylate matrix polymer; (B) polychloroprene rubber which is grafted with methylmethacrylate; and (C) a metal oxide. Specimens molded from these polyblends have a UL-94 rating of at least V-1 and a smoke level of less than 300 D.sub.m Flaming using the NBS smoke test.
    Type: Grant
    Filed: December 5, 1975
    Date of Patent: December 27, 1977
    Assignee: Monsanto Company
    Inventor: Gary L. Deets
  • Patent number: 4065368
    Abstract: A flexible photopolymerizable resin is prepared in a two-stage process by the esterification of castor oil which chlorendic anhydride to yield a chlorendic anhydride half ester and the subsequent reaction of the half ester with a reagent having acrylic functionality, a cure retardant and an acrylic functional monomer. The resultant acrylic ester evidences superior insulation resistance during aging.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: December 27, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Kenneth Allan Holtzman
  • Patent number: 4064026
    Abstract: Liquid mixtures which are curable by exposure to ultraviolet light when appropriately photosensitized are provided by etherifying a polyepoxide with an at least 25% stoichiometric excess of an hydroxy alkyl ester of an alpha, beta-monoethylenically unsaturated monocarboxylic acid, expecially hydroxy ethyl acrylate. The unreacted hydroxy alkyl ester is then consumed by reaction with at least 1 molar equivalent of a monoanhydride, such as a monoepoxide, a lactone, or a monoisocyante.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: December 20, 1977
    Assignee: Mobil Oil Corporation
    Inventor: Marvin L. Kaufman
  • Patent number: 4064090
    Abstract: Aqueous coating compositions comprising ionizable salts of specific epoxy-amine adducts and acids of pK.sub.a value 1.5 - 6.0 are disclosed. The coatings are particularly useful in a cathodic electrodeposition process.
    Type: Grant
    Filed: January 23, 1976
    Date of Patent: December 20, 1977
    Assignee: Dulux Australia Ltd.
    Inventors: David Vincent Gibson, Bruce Leary
  • Patent number: 4061710
    Abstract: A moulding composition comprising (a) a melamineformaldehyde resin having a molar ratio of melamine to formaldehyde in the range 1:1.5 to 1:2.5 which upon hardening is capable of withstanding heating at 200.degree. C concerned for 2 hours in air without causing significant structural damage or color change to moulded articles made from moulding compositions in which it has been incorporated, (b) an accelerator derived from a mono- or dibasic organic acid, (c) an inorganic filler having low adsorption characteristics and an oil adsorption value of 10 to 40, (d) a further inorganic filler and (e) an external lubricant comprising at least one carboxyorganosiloxane esterified with an alcohol containing up to 4 carbon atoms and the process of preparing said moulding compositions.
    Type: Grant
    Filed: June 10, 1975
    Date of Patent: December 6, 1977
    Assignee: Rutgerswerke Aktiengesellschaft
    Inventors: Werner Schafer, Wolfram Busch, Hermann Wallhausser, Manfred Richter, Siegfried Wilhelm
  • Patent number: 4058442
    Abstract: Photopolymerizable composition of matter for the production of formed-in-place artificial nails.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: November 15, 1977
    Assignee: Lee Pharmaceuticals
    Inventors: Henry L. Lee, Jr., Jan A. Orlowski, Carl H. Fromm
  • Patent number: 4057599
    Abstract: A complex of polyphenylene ether resin and methylene chloride obtained by polymerizing a phenol in methylene chloride and then cooling the mixture to cause the complex to precipitate, is mixed with a vinyl aromatic compound, e.g., styrene monomer, heated to decompose the complex and remove methylene chloride from the blend, and thereafter the vinyl aromatic compound is polymerized. The products are useful as molding resins and the like.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: November 8, 1977
    Assignee: General Electric Company
    Inventors: Glenn Dale Cooper, Irwin Schraga
  • Patent number: 4057597
    Abstract: Disclosed are block-type aryl copolyesters, the process for obtaining these as well as the filaments produced therefrom, and the process for obtaining such filaments.The aryl copolyesters contain from 10 to 90% of recurring flexible units of the formula ##STR1## WHERE R is an aliphatic, alicyclic or araliphatic radical, x is an integer from 2 to 6, and y = 0 or 1, andFrom 90 to 10% of recurring rigid units of the formula ##STR2## and have an inherent viscosity of at least 0.25. The raw spun filaments produced therefrom possess a modulus of elasticity of at least 1,000 g/tex, and preferably at least 1,500 g/tex, and are obtained by melt-spinning at a temperature such that the copolyester is optically anisotropic at rest and in the relaxed state, followed by winding up the filament in a per se known manner. Such filaments can be used advantageously as reinforcing filaments.
    Type: Grant
    Filed: August 25, 1976
    Date of Patent: November 8, 1977
    Assignee: Rhone-Poulenc-Textile
    Inventor: Bernard Fayolle
  • Patent number: 4056269
    Abstract: In a homogeneous molded golf ball comprising a filled elastomer highly cross-linked into a three dimensional network with long, flexible cross-links formed of a polymerized cross-linking monomer, the improvement which comprises using as said cross-linking monomer a metal-containing cross-linkable monomer whereby said comonomer simultaneously functions as said filler at least in part. The preferred elastomer is cis-polybutadiene. The metal-containing cross-linkable monomer can be formed in situ or added as such and preferably comprises a salt of at least one metal selected from the group consisting of zinc, magnesium and calcium, and at least one acid selected from the group consisting of methacrylic, acrylic, cinnamic, acotinic, crotonic, vinylacetic, itaconic, styrenesulfonic and benzoylacrylic acids. Additional filler may be added to adjust the density to the desired value.
    Type: Grant
    Filed: May 4, 1972
    Date of Patent: November 1, 1977
    Assignee: Princeton Chemical Research, Inc.
    Inventors: Duncan H. Pollitt, Murray H. Reich