Patents Examined by Edward M. Woodberry
  • Abrasion resistant coatings
    Patent number: 4082896
    Abstract: Abrasion resistant polymeric coatings in which the polymer comprise the polymerized product of at least 15% by weight of an epoxy-terminated silane have improved film forming properties without significant loss of abrasion resistance if the epoxy-terminated silane composition is cured in the presence of 0.05 to 5% by weight of a polymeric additive selected from the class of polyvinyl butyral, polyvinyl formal, polyvinylpyrrolidone, polyvinylchloride, cellulose acetate butyrate, cellulose acetate propionate and ethylcellulose.
    Type: Grant
    Filed: March 10, 1976
    Date of Patent: April 4, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Arthur A. Wegwerth
  • One-liquid cold setting adhesive with encapsulated catalyst initiator
    Patent number: 4080238
    Abstract: A one-liquid cold setting adhesive comprising a thermoplastic, non-reactive polyurethane polymer dissolved in an addition-polymerizable combination of an acrylic or methacrylic monomer other than the acids, a copolymerizable monomer containing at least one free carboxylic group, a non-activated free radical addition polymerization catalyst system and an activator for the free radical catalyst system encapsulated in pressure-rupturable microspheres or beads having a composition which is substantially insoluble in the presence of the other components of the mixture for a relatively long time period. Exemplary of this adhesive formulation is a polyester polyurethane containing no free isocyanate groups dissolved in a mixture of methacrylic acid and methyl methacrylate, each of the three components being present in equal amounts. Included in the mix is benzoyl peroxide and hydroquinone.
    Type: Grant
    Filed: July 14, 1976
    Date of Patent: March 21, 1978
    Assignee: Pratt & Lambert, Inc.
    Inventors: Leon E. Wolinski, Peter David Berezuk
  • Coating composition comprising methyl-cellulose and polyvinyl acetate
    Patent number: 4080479
    Abstract: A method of coating irregular, non-homogeneous surfaces, such as wood, metals, concrete walls, is described which consists of applying onto the surface an aqueous emulsion prepared by mixing an organic adhesive, which may comprise a cellulose compound, and at least one synthetic resin in an aqueous medium. A filler may also be used. The coating composition may be applied by brushing or spraying and is then allowed to dry.The present invention is related to the coating of irregular hollow, non-homogenous surfaces or surfaces with diverse shapes or even but not allowing further economical treatment or surfaces of lower value by using hydrophilic matter adhering thereto to make them smooth and allowing thereby further treatment without further complementary treatment.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: March 21, 1978
    Inventor: Nicholas Vamvacas
  • Copolymerized starch composition
    Patent number: 4079025
    Abstract: Preformed, homogeneous, non-linear starch copolymerizate articles may be prepared by copolymerizing a preformed, homogeneous mixture of water, ethylenically unsaturated starch and ethylenically unsaturated monomers to provide a labyrinth of copolymerized starch chains interconnected with each other by the copolymerized monomeric units. The invention is particularly suitable for preparing high-binder, aqueous coating compositions which may be applied to a variety of substrates and subsequently copolymerized with polymerization initiating systems. Improved water- and detergent-resistance may be obtained by incorporating film-forming additives, cross-linking reagents or polyunsaturated compounds into the copolymerizable starch composition.
    Type: Grant
    Filed: April 27, 1976
    Date of Patent: March 14, 1978
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Austin Harry Young, Frank Verbanac
  • Adhesives based on aqueous dispersions of butadiene copolymers, polyvinylpyrrolidones and anionic macromolecular compounds
    Patent number: 4076661
    Abstract: An adhesive comprising an aqueous dispersion of butadiene copolymers, polyvinylpyrrolidones and water-soluble macromolecular compounds containing carboxyl groups, having improved adhesive strength and stability to hot water, said adhesive being particularly useful to bond metals to absorbent substrates.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: February 28, 1978
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventor: Karl-Heinz Kassner
  • Water absorbing starch resins
    Patent number: 4076663
    Abstract: A highly water-absorbent resin is produced by polymerizing (A) starch or cellulose, (B) at least one monomer having a polymerizable double bond which is water-soluble or becomes water-soluble by hydrolysis and (C) a crosslinking agent, and subjecting, if necessary, the resulting product to hydrolysis.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: February 28, 1978
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Fusayoshi Masuda, Kazuo Nishida, Akira Nakamura
  • Carboxylic acid amide interpolymer-based coating compositions
    Patent number: 4075141
    Abstract: Coating compositions having improved application characteristics as well as other desirable properties are prepared by adding insoluble crosslinked polymeric microparticles to solutions or dispersions of carboxylic acid amide interpolymers. The compositions may be spray coated onto various substrates in two coat applications to form coatings having improved film build, pattern control and flow control while maintaining the gloss characteristics of the film.
    Type: Grant
    Filed: October 9, 1975
    Date of Patent: February 21, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Samuel Porter, Jr., Bruce N. McBane
  • Composition for non-squeal disc brake pads
    Patent number: 4075142
    Abstract: A system is disclosed for removing squeal or noise from automotive disc brake assemblies. An emulsion of a normally soft polymer together with a cellulosic thickener, an antifreeze compound, a biocide and pigment is coated onto the back side of the outboard pad assembly. When dry the outboard pad assembly is mounted on an automotive disc brake assembly.
    Type: Grant
    Filed: August 27, 1976
    Date of Patent: February 21, 1978
    Inventors: Norman Bernard Morse, David Bruce Lester
  • Undercoating composition for polyesters containing epoxy compounds
    Patent number: 4072639
    Abstract: An undercoating composition for polyesters which contains a compound having two or more epoxy groups in its molecule and a molecular weight of about 1,000 or less.
    Type: Grant
    Filed: March 5, 1976
    Date of Patent: February 7, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Teruo Yamaguchi, Hidefumi Sera
  • 4,4'-Thio-bis-(dialkylphenol)/formaldehyde condensates and process for producing them
    Patent number: 4072659
    Abstract: A phenol/formaldehyde condensation product of a 4,4'-thio-bis-(dialkylphenol) and formaldehyde having a molecular weight of 1,000 to 4,000; a process for preparing such a condensation product by contacting 4,4'-thio-bis-(dialkylphenol) and a source of formaldehyde in the presence of a protonic acid catalyst; and the use of such a condensation product as an antioxidant in an olefin polymer or copolymer composition.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: February 7, 1978
    Assignee: Ruhrchemie AG
    Inventors: Hans Feichtinger, Siegfried Lutze, Hans-Walter Birnkraut, Werner Kluy
  • Copolymerization of vinyl monomers with cellulose and starch in copper ammonium solutions
    Patent number: 4072640
    Abstract: A process for the production of starch or cellulose copolymers with vinyl monomers by dissolving the starch or cellulose in copper ammonium solution, adding the vinyl monomer and catalyzing with light or heat. Methyl methacrylate can also be homopolymerized by this process.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: February 7, 1978
    Assignee: Instituto Venezolano de Investigaciones Cientificas
    Inventor: Jose M. Sosa
  • Plywood adhesives using amylaceous extenders comprising finely ground cereal-derived high fiber by-product
    Patent number: 4070314
    Abstract: A high fiber-containing fraction from a cereal grain or oilseed is combined with other high fiber-containing fractions to provide 30-100% of an extender, with cereal flours or starches providing 0-70%, and the mixtures are used as amylaceous extenders which are particularly useful in producing adhesives for the bonding of wood such as veneers in the production of products such as plywood.
    Type: Grant
    Filed: October 7, 1976
    Date of Patent: January 24, 1978
    Assignee: Krause Milling Company
    Inventors: Richard J. Alexander, Robert K. Krueger
  • Water absorbing and urine stable step-wise grafted starch-polyacrylonitrile copolymers
    Patent number: 4069177
    Abstract: Alkali metal carboxylate salts of starch-polyacrylonitrile graft copolymers produced by saponifying a starch-polyacrylonitrile graft copolymer are improved significantly by employment of step-wise grafting of the acrylonitrile, and by employment of starch which has been treated by one or more of the following steps, thinning, defatting, precooking.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: January 17, 1978
    Inventor: Theodore Smith
  • Heat-releasable decalcomanias and adhesive composition therefor
    Patent number: 4068033
    Abstract: An adhesive composition for a heat-releasable ceramic decalcomania is provided, the adhesive composition comprising an acrylic resin, a tackifier for said acrylic resin, which tackifier comprises a polyethylene glycol and/or solid polyoxyalkylene derivatives of propylene glycol or ethylenediamine, and an organic solvent therefor. Preferably, this tackifier is employed in combination with a second tackifier comprising one or more aromatic acid esters of monomeric and polymeric alkyl polyols.A heat-releasable ceramic decalcomania is provided which comprises a backing sheet, optionally a wax-impervious barrier layer disposed on said backing sheet, a wax layer disposed on said backing sheet or barrier layer (where employed), a design receiving support layer disposed on said wax layer, a design layer disposed on said support layer, and an adhesive layer as described above disposed on said design layer.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: January 10, 1978
    Assignee: Commercial Decal, Inc.
    Inventor: Hazel Meade
  • Adsorption process
    Patent number: 4067854
    Abstract: In a process for reacting two or more reactants, such as phenol and formaldehyde in the manufacture of phenol/formaldehyde resins, the reaction by-products are treated with an adsorbant resin to remove excess reactant therefrom and the reactant so adsorbed is removed from the adsorbent by elution with the other reactant, the eluate being recycled to the reaction.
    Type: Grant
    Filed: August 29, 1975
    Date of Patent: January 10, 1978
    Assignee: Rohm and Haas Company
    Inventor: Elio Fiorentino
  • Process for preparing polyesters with a catalyst system comprising an antimony-containing poly-condensation catalyst and an ethylenically unsaturated compound
    Patent number: 4067856
    Abstract: A polycondensation process employing a catalyst system comprising an antimony-containing polycondensation catalyst and selected ethylenically unsaturated compounds, such as allyl glycidyl ether. The ethylenically unsaturated compound stabilizes the antimony-containing catalyst.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: January 10, 1978
    Assignee: Stauffer Chemical Company
    Inventors: Ronald L. Muntz, Francis A. Via
  • Polyester catalyst system comprising an antimony-containing polycondensation catalyst and an ethylenically unsaturated compound and process employing same
    Patent number: 4067857
    Abstract: A polycondensation catalyst system comprising an antimony-containing polycondensation catalyst and selected ethylenically unsaturated compounds, such as pentaerythritol triacrylate. The ethylenically unsaturated compound stabilizes tne antimony-containing catalyst.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: January 10, 1978
    Assignee: Stauffer Chemical Company
    Inventor: Ronald Lee Muntz
  • Alloy fibers of rayon and copolymers of acrylic and methacrylic acids
    Patent number: 4066584
    Abstract: Highly absorbent, cardable cellulosic fibers are made by incorporating therein, an alkali metal or ammonium salt of a copolymer of acrylic acid and methacrylic acid, where the ratio of acrylic acid units to methacrylic acid units (by weight) is from 90:10 to 10:90.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: January 3, 1978
    Assignee: Akzona Incorporated
    Inventors: Thomas C. Allen, David B. Denning
  • Improved acrylate based radiation curable coating compositions containing nitrocellulose
    Patent number: 4066582
    Abstract: Addition of a small amount by weight of nitrocellulose to certain acrylate or methacrylate containing radiation curable coating compositions greatly inhibits penetration of the uncured compositions into porous substrates such as paper or paperboard.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: January 3, 1978
    Assignee: Union Carbide Corporation
    Inventors: Gunther William Babian, Edward Bruce Harris
  • Process for producing a polyion complex having a nucleic acid base
    Patent number: 4066827
    Abstract: A polyion complex is produced by reacting a weak acid type or a strong acid type polyanion polymer with a nucleic acid base-containing polycation polymer.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: January 3, 1978
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Toru Seita, Akihiko Shimizu, Yujiro Kosaka