Patents Examined by Richard B. Turer
  • Anti-drip additive system for fire retardant polypropylene
    Patent number: 4147741
    Abstract: Non-dripping, preferably fire retardant polypropylene compositions comprising modified polypropylene component and a cross-linker. Conventional fire retardants can also be present.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: April 3, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventors: Francis J. Slama, Ivor R. Fielding
  • Anhydride modified epoxy acrylate UV curable coating
    Patent number: 4146452
    Abstract: A radiation curable coating composition for various substrates contains an adduct of acrylic acid and a diepoxy resin modified with an anhydride, such as maleic anhydride, and a low boiling alcohol and/or ketone 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 or reactive monomer vehicles that can create health hazards.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: March 27, 1979
    Assignee: Mobil Oil Corporation
    Inventors: Clyde A. Weber, Jack S. Skinner
  • Photopolymerizable composition stabilized with epoxide compounds and process
    Patent number: 4146453
    Abstract: A stabilized photopolymerizable composition comprising photopolymerizable ethylenically unsaturated monomeric compounds, a photoinitiator and at least one epoxide compound as a stabilizer.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: March 27, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Francis A. Via
  • Process for producing hydrolysis-stable shaped structures of polyester
    Patent number: 4144285
    Abstract: A process is disclosed for treating polyester material with at least one N-glycidylimide compound which results in reducing the terminal carboxyl group content of the polyester material.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: March 13, 1979
    Assignee: Inventa AG Fur Forschung und Patent-verwertung, Zurich
    Inventors: Max Maschek, Marcel Capaul, Wolfgang Griehl
  • Manufacture of unsymmetric monoacetals of aromatic 1,2-diketones employable as photoiniatiators
    Patent number: 4144156
    Abstract: Unsymmetrical monoketals of aromatic 1,2-diketones ##STR1## wherein R.sup.1 and R.sup.2 are different radicals, are manufactured by reacting the corresponding aromatic 1,2-diketones, in an organic solvent, with an acid ester (R.sup.1).sub.n X as alkylating agent and an alcoholate (R.sup.2 O).sub.m Me, where n and m are integers from 1 to 3, X is an acid radical and Me is a metal of main groups 1 to 3 of the periodic table of the elements. The resulting diketone monoacetals are particularly suitable for use as photoinitiators in photopolymerizable compositions.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: March 13, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Kuesters, Manfred Jacobi, Rolf Osterloh
  • Thermoplastic PVC resin compositions
    Patent number: 4144286
    Abstract: Thermoplastic moulding compositions of 20 to 90% by weight of polyvinyl chloride and, accordingly, 10 to 80% by weight of a mixture of(1) 20 to 100% by weight of a thermoplastic resin which is a copolymer of 30 to 40 parts by weight of .alpha.-methyl styrene, 52 to 62 parts by weight of methyl methacrylate and 4 to 14 parts by weight of acrylonitrile, and(2) 0 to 80% by weight of a graft polymer of 40 to 60 parts by weight of a monomer mixture of styrene (40 to 60 parts by weight), acrylonitrile (0 to 10 parts by weight) and methyl methacrylate (40 to 50 parts by weight), on 40 to 60 parts by weight of polybutadiene or butadiene/styrene copolymer containing up to 30% by weight of copolymerized styrene.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: March 13, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Casper, Wilfried Nolte, Hans Braese
  • Polythiol accelerated radiation crosslinking of olefinically unsaturated polymers
    Patent number: 4144154
    Abstract: Improved radiation vulcanization of elastomers is accomplished by incorporating into the elastomer composition a polythiol, bivalent metal oxide and an aliphatic acid. The polythiol is preferably a hydrocarbon thioether thiol and is normally liquid at room temperature with a molecular weight of at least 150, said metal oxide is preferably zinc oxide and said acid is preferably stearic acid; alternatively, the reaction product of said metal oxide and acid can be used e.g., zinc stearate at appropriately increased concentration.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: March 13, 1979
    Inventors: Robert L. Zapp, Alexis A. Oswald
  • Acrylic and methacrylic self-adhesive composition and radiation method of making same
    Patent number: 4144157
    Abstract: A self-adhesive composition comprising a crosslinked copolymer of 0.01 to 5% by weight based on said composition of a compound taken from the class consisting of acrylic and methacrylic-[(2-alkoxy-2-phenyl-2-benzoyl) ethyl] esters and at least one monomer capable of producing a self-adhesive polymer. A method of preparation of the composition is also disclosed.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: March 13, 1979
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Gunter Guse, Ernst Lukat, Peter Jauchen, Wolfdieter Lenck, Hanns Pietsch
  • Radiation process for producing 1,2-polybutadiene foamed products
    Patent number: 4144153
    Abstract: A process for producing a photodegradable rubber foamed products of excellent softness, which comprises mixing 1,2-polybutadiene with 0.1 to 3.0% of a photosensitizer and with a thermally decomposable foaming agent, irradiating with ultraviolet ray of a wavelength of 240 to 400 m.mu. for 10 minutes or less to form a cross-linked material having a gel fraction of 30 to 80% (in boiling toluene; 7 hours), and heating to 150 to 230.degree. C. to form a foamed product. In particularly preferred embodiments of this invention, the foaming agent is p,p'-oxybis (benzenesulfonylhydrazide).
    Type: Grant
    Filed: October 1, 1976
    Date of Patent: March 13, 1979
    Assignee: Takiron Co., Ltd.
    Inventors: Yasuo Shikinami, Ryuichi Kimura, Yoshinobu Yoshikawa, Kosuke Iida, Kunihiro Hata
  • Radiation process for producing a reactive aqueous emulsion
    Patent number: 4144155
    Abstract: A process for producing a reactive aqueous emulsion comprising dispersing a monomer mixture of (a) 65.0 - 98.8% by weight of radical polymerizable hydrophobic ethylenic unsaturated monomer having one ethylenic unsaturated bond, (b) 1.0 - 30.0% by weight of radical polymerizable ethylenic unsaturated monomer having a glycidyl group and (c) 0.2 - 5.0% by weight of a radical polymerizable ethylenic unsaturated monomer having a carboxylic group in water by virtue of a restricted amount of surface active agent and irradiating with an ionizing radiation for a total dose of more than 0.01 Mrad at temperatures ranging from -5.degree. C. to 50.degree. C. This reactive aqueous emulsion does not contain low-molecular water-soluble compounds such as a radical polymerization initiator, a pH regulator, etc. and can form a film having improved properties.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: March 13, 1979
    Assignees: Japan Atomic Energy Research Institute, Kansai Paint Co., Ltd.
    Inventors: Kunio Araki, Keizo Makuuchi, Tohru Takagi, Hiroyuki Nakayama
  • Bulk photo polymerization process for esters of acrylic and methacrylic acids
    Patent number: 4141806
    Abstract: Ethylenically unsaturated monomers are polymerized in bulk in the presence of from 0 to 10% by weight of a photoinitiator by irradiation of UV light(a) in a first reaction stage at or below the boiling point of the reaction mixture, up to a conversion of 40 - 80% by weight, and(b) in a second reaction stage, at a temperature which has been raised by from 20 to 120.degree. C and is above the glass transition temperature of the resulting polymer, up to a conversion of above 90% by weight, the percentages in each case relating to the total amount of monomer.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: February 27, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Berthold Keggenhoff, Hans J. Rosenkranz, Hans Rudolph
  • Photopolymerizable composition stabilized with nitrogen-containing aromatic compounds
    Patent number: 4141807
    Abstract: A stabilized photopolymerizable composition comprising photopolymerizable ethylenically unsaturated monomeric compounds, a photoinitiator and at least one nitrogen-containing aromatic compound as a stabilizer.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: February 27, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Francis A. Via
  • Manganese carbonyl-sulfonyl chloride photoinitiators for radiation polymerizable unsaturated compounds
    Patent number: 4141808
    Abstract: This invention relates to radiation curable compositions of radiation polymerizable unsaturated materials, and particularly concerns photoinitiators therefor comprising manganese carbonyl admixed with any of a variety of sulfonyl chloride compounds. The monomers initiated with these materials have high polymerization rates which permit faster curing cycles.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: February 27, 1979
    Assignee: Eastman Kodak Company
    Inventors: Gordon C. Newland, James G. Pacifici, David A. Young
  • Photocurable epoxy compositions containing thiopyrylium salts
    Patent number: 4139655
    Abstract: This invention relates to photocurable compositions comprising an epoxy resin and a catalytic amount of a photodecomposable thiopyrylium salt of the formula: ##STR1## WHERE R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen, alkyl containing 1 to 10 carbon atoms, cycloalkyl containing 5 to 12 carbon atoms, aryl containing 6 to 12 carbon atoms and substituted derivatives thereof, M is a metal or metalloid, X is a halogen radical, a is a whole number equal to 1 to 10 and n is a whole number equal to 1 to 3.
    Type: Grant
    Filed: May 9, 1978
    Date of Patent: February 13, 1979
    Assignee: W. R. Grace & Co.
    Inventor: Jung-Tsien Tsao
  • Process for preparing a thermosetting aqueous polymer emulsion using radiation
    Patent number: 4139437
    Abstract: A process is, herein, disclosed for preparing a thermosetting aqueous polymer emulsion comprising;(1) dispersing a monomer mixture of 90.0 - 99.9 wt % of a radical polymerizable hydrophobic ethylenic unsaturated monomer having an ethylenic unsaturated bond in its molecule and 0.1 - 10.0 wt % of a radical polymerizable crosslinkable monomer having more than two ethylenic unsaturated bonds in its molecule in water in which a specific amount of surface active agent is dissolved to form a dispersion.(2) irradiating the dispersion with an ionizing radiation to effect the first stage emulsion polymerization.(3) adding a monomer mixture of 52.0 - 97.0 wt % of the radical polymerizable hydrophobic ethylenic unsaturated monomer, 2.5 - 40.0 wt % of a radical polymerizable ethylenic unsaturated monomer having a hydroxyl group and 0.5 - 8.
    Type: Grant
    Filed: April 18, 1978
    Date of Patent: February 13, 1979
    Assignees: Japan Atomic Energy Research Institute, Kansai Paint Co., Ltd.
    Inventors: Kunio Araki, Keizo Makuuchi, Tohru Takagi, Hiroyuki Nakayama
  • Polyetherurethane composition and polymer prepared by photopolymerization
    Patent number: 4139436
    Abstract: A liquid ethylenically unsaturated polyetherurethane composition having a viscosity at 24.degree. C. of 1000 to 10,000 centipoises dispersible in dilute aqueous sodium hydroxide is capable of being polymerized by actinic light to yield a solid having a Shore A hardness of at least 30 when the composition contains 0.5 to 15 percent dialkyl, aminoalkyl, acrylate or methacrylate. The resulting polymer is capable of taking on excellent halftone or half dot quality.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: February 13, 1979
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Shirish R. Jasani
  • Process utilizing a photopolymerizable and moisture curable coating containing partially capped isocyanate prepolymers and acrylate monomers
    Patent number: 4138299
    Abstract: A liquid radiation and moisture curable 100% reactive coating which cures to yield a clear, tough, glossy abrasion-resistant cured coating is described. The radiation and moisture curable 100% reactive coating composition comprises: 15 to 60 parts by weight acrylate diluents; and 40 to 85 parts by weight of isocyanate terminated urethane prepolymers formed by reacting a mixture of polyester diols and triols with excess aliphatic diisocyanate to form --NCO terminated prepolymer and then reacting the --NCO terminated prepolymers with sufficient hydroxy acrylate to cap between about 5% and 15% of the available --NCO sites to form addition polymerizable ethylenically unsaturated sites and a photoinitiator when light is the radiation source.
    Type: Grant
    Filed: December 23, 1977
    Date of Patent: February 6, 1979
    Assignee: Armstrong Cork Company
    Inventor: Nicholas C. Bolgiano
  • Radiation process for the production of graft copolymer to be used for ion-exchange membrane
    Patent number: 4137137
    Abstract: A graft copolymer membrane prepared by co-grafting a mixture of monomers consisting essentially of acyloxystyrene and/or hydroxystyrene, a polyene compound and at least one member selected from the group consisting of acrylic acid, methacrylic acid and esters of these acids onto a hydrocarbon type of fluorine-containing type polymer by means of ionizing radiation exhibits improved mechanical strength and reduced electrical resistance and provides an excellent ion-exchange membrane.
    Type: Grant
    Filed: July 13, 1977
    Date of Patent: January 30, 1979
    Assignees: Japan Atomic Energy Research Institute, Maruzen Oil Company Limited
    Inventors: Sueo Machi, Takanobu Sugo, Akio Sugishita, Sakunobu Kanai, Hiroshi Fujiwara
  • Radiation curable hydantoin diacrylate compounds
    Patent number: 4137139
    Abstract: Hydantoin diacrylate compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, alkyl containing 1 to 8 carbon atoms; R.sub.2 is alkyl containing 5 to 8 carbon atoms; and R.sub.3 is hydrogen or methyl are prepared. The diacrylate compounds are liquid at room temperature, easily processable as adhesives, casting and laminating resins and when cured possess excellent resistance to water.
    Type: Grant
    Filed: June 10, 1976
    Date of Patent: January 30, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Raymond Seltzer, Joseph F. DiPrima
  • Radiation curable coating composition comprising an acryl urethane oligomer, and an ultra-violet absorber
    Patent number: 4135007
    Abstract: A radiation curable coating comprising;A. an oligomer of Formula I: ##STR1## wherein: R.sup.1 is hydrogen or methyl;Y is a divalent urethane residue;B. a benzylidene acid ester of Formula IV: ##STR2## wherein R.sup.4 is independently alkyl or hydroxy alkylene. Preferably the coating composition contains a vinyl monomer copolymerizable with the oligomer. The process for curing the coating is also disclosed.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: January 16, 1979
    Assignee: GAF Corporation
    Inventors: Donald H. Lorenz, Shu T. Tu, Donald P. Wyman