Patents Examined by John J. Guarriello
  • Patent number: 5741833
    Abstract: A raw material for injection molding comprising a metal powder or a ceramic powder, and a binder containing at least two types of resins, obtained by coating or encapsulating the metal powder or ceramic powder particles with a resin insoluble in a predetermined solvent and having a high softening temperature, and subsequently kneading the resultant powder and a resin soluble in the solvent and having a low softening temperature.
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: April 21, 1998
    Assignee: Fujitsu Limited
    Inventors: Yoshihiko Seyama, Yutaka Shimizu, Shinya Iijima
  • Patent number: 5741844
    Abstract: A coating composition giving a fresco-like appearance when mixed with a cement based plaster comprises a latex polymer binder, acrylic polymer binder, or two acrylic polymer cross-linking binders, particulate matter and chemical agents. The plaster composition preferably comprises 35 to 45 percent by weight cement based plaster; 50 to 60 percent by weight coating composition, 2 to 8 percent by weight colorant. A method for preparing a the plaster composition and a plaster wall, ceiling, or other surface comprised of the plaster composition applied to an appropriate wall, ceiling, or surface is also disclosed.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: April 21, 1998
    Assignee: Warren J. Nass
    Inventors: Warren John Nass, Kurt Gutfreund, Eli S. Freeman
  • Patent number: 5739188
    Abstract: A thermoplastic composition comprising: (i) a thermoplastic resin; (ii) an antiplasticizing amount of a solid plasticizer; (iii) optionally an acid scavenger; and (iv) optionally a heat stabilizer selected from the group consisting of mixed metal stabilizers, organotin stabilizers, lead stabilizers, metal free stabilizers, or any combination of the foregoing which improves the processability of the thermoplastic resin without affecting the physical properties of the thermoplastic resin.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: April 14, 1998
    Inventor: Nirav Desai
  • Patent number: 5736608
    Abstract: A process for the manufacture of materials with a high chemical and mechanical resistance in which for each 100 parts by volume of vinylester resin treated with 0.85-1.47 parts by volume of an accelerant in the form of cobalt naphthenate, there are added at least in two batches 50-900 parts by volume of an inorganic filler constituting previously roasted at a temperature not lower than 470 K disintegrated to a particle size of at least 30 .mu.m phosphogypsum or a composition of phosphogypsum with glass-forming oxides or phosphogypsum with magnetite or phosphogypsum with microsphere, after which on continuous stirring there is added, if necessary, up to 60 parts by volume of styrene and/or up to 0.2 parts by volume of dimethylaniline, and then the whole is polymerized in the presence of know initiators such as organic peroxides. The materials with a high chemical and mechanical resistance constitute polymerized composition of synthetic resin and inorganic fillers, consisting of 7.5-88.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: April 7, 1998
    Inventors: Marceli Cyrkiewicz, Erwin Herling, Jacek Kleszczewski
  • Patent number: 5731374
    Abstract: An organic solvent-based paint is provided which has, among other things, a perlitic component. The paint resists thermal loading and loss. A series addition of components provides the paint efficiently. The paint is useful for many substrates, including metals.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: March 24, 1998
    Assignee: P.S.A.M.S., Inc.
    Inventors: John W. Good, Rufus H. Kerry
  • Patent number: 5728764
    Abstract: Organoclay compositions which comprise the reaction product of a smectite-type clay having an ion exchange capacity of at least 50 meq. wt. per 100 g. clay (active basis), and an alkoxylated quaternary ammonium compound having one or two alkoxylated chains containing 0-10 moles ethylene oxide and 3-15 moles of propylene or butylene oxide residues are useful thixotropic materials, especially for the preparation of aqueous systems.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: March 17, 1998
    Assignee: Southern Clay Products, Inc.
    Inventors: Carl J. Bauer, John D. Boothe, Harry Ryan Dennis, Clois E. Powell
  • Patent number: 5728758
    Abstract: Describes a coating composition for the preparation of abrasion resistant coatings consisting essentially of:(a) 5 to 35 weight percent of a silane monomer mixture of (i) C.sub.1 -C.sub.12 alkyl tri(C.sub.1 -C.sub.6)alkoxysilane and (ii) tetra(C.sub.1 -C.sub.6)alkoxysilane, the weight ratio of (i) to (ii) being from 3:1 to 1:3;(b) 1 to 9 weight percent of polyvinyl alcohol that is at least 72 percent hydrolyzed;(c) a solvating amount of lower aliphatic alcohol;(d) a catalytic amount of water-soluble acid;(e) a leveling amount of nonionic surfactant; and(f) water in an amount sufficient to formhydrolysates of the silane monomers and to solubilize the polyvinyl alcohol and acid. Further described are transparent articles and photochromic articles comprising organic polymeric host material, organic photochromic compound(s), and a cured abrasion resistant coating prepared from the coating composition.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: March 17, 1998
    Assignee: Transitions Optical, Inc.
    Inventor: Robert A. Smith
  • Patent number: 5726230
    Abstract: Disclosed is an aqueous coating composition which comprises a water-dispersible resin and an ester of a polyglycerin ether with a fatty acid.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: March 10, 1998
    Assignee: Kansai Paint Company, Limited
    Inventors: Masahiro Murata, Toshio Kurihara, Akira Suehiro, Syuichi Ikenoue
  • Patent number: 5726221
    Abstract: Water-based correction fluids for covering typing, writing or drawing errors contain a particulate opacifier, a water-soluble or water-dispersible binder, water and a di- or tri-quaternary ammonium compound to prevent bleed of inks.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: March 10, 1998
    Assignee: The Gillette Company
    Inventor: Michael Alexiou
  • Patent number: 5723514
    Abstract: The invention relates to a heatset intaglio printing ink especially suited for the intaglio printing of security documents such as currency, postage stamps, stock certificates, bank notes and the like. The ink comprises: a) an epoxy resin ester reacted with an unsaturated monobasic acid and a reactive monomer, b) a glycol and/or glycol ether, c) a pigment, d) a drier and e) a compound obtained by reacting an amine/epoxy adduct with a phenolic resin or polyhydric phenol compound.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: March 3, 1998
    Assignee: Sun Chemical Corporation
    Inventors: Solomon J. Nachfolger, Hugo Babij, Joseph Malanga, Ralph H. Reiter, Walter J. Glesias
  • Patent number: 5719204
    Abstract: The invention relates to polymeric dispersants used in formulating aqueous ink compositions, as well as inks containing those dispersants. The dispersants are graft copolymers comprising a hydrophilic polymeric segment, a hydrophobic polymeric segment incorporating a hydrolytically-stable siloxyl substituent, and a stabilizing segment, such as a reactive surfactant macromer, a protective colloid macromer, or a non-siloxyl hydrophobic monomer. The inks made with these dispersants show excellent stability, print characteristics, water-fastness, light-fastness, optical density, and in-use maintenance characteristics.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: February 17, 1998
    Assignee: Lexmark International, Inc.
    Inventors: Bradley Leonard Beach, Anna Marie Pearson, Jing Xiao Sun, Richard B. Watkins
  • Patent number: 5719223
    Abstract: An alloy of a polyamide thermoplastic polymer and a nitrile thermoelastic polymer and method for its preparation in which the polyamide and the nitrile are blended at an elevated temperature in the presence of an antioxidant and then cooled. The resulting blend is an alloy in that each polymer phase is miscible with and dissolved in the other.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: February 17, 1998
    Inventor: Rudolph Karg
  • Patent number: 5716406
    Abstract: The growth of microorganisms on catheters and other medical devices is inhibited by slime-inhibiting compounds. Slime-inhibiting compounds include salicylic acid and other NSAID.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: February 10, 1998
    Assignee: North Shore University Hospital Research Corp.
    Inventor: Bruce Farber
  • Patent number: 5714538
    Abstract: The invention relates to polymeric dispersants used in formulating aqueous ink compositions, as well as inks containing those dispersants. The dispersants are graft copolymers comprising a hydrophilic polymeric segment, a hydrophobic polymeric segment incorporating a hydrolytically-stable siloxyl substituent, and a stabilizing segment, such as a reactive surfactant macromer, a protective colloid macromer, or a non-siloxyl hydrophobic monomer. The inks made with these dispersants show excellent stability, print characteristics, water-fastness, optical density, and in-use maintenance characteristics.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: February 3, 1998
    Assignee: Lexmark International, Inc.
    Inventors: Bradley L. Beach, Anna Marie Pearson, Jing Xiao Sun, Richard B. Watkins
  • Patent number: 5714525
    Abstract: Densified particles of friction ingredients which include an uncured mix of friction ingredients with a thermosetting binder resin and an effective amount of a liquid coreactive with the resin which maintains the temperature during particle formation below the curing temperature of the resin can be used to make friction elements. Methods of forming friction elements from the particles and friction elements made from the particles also are described.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: February 3, 1998
    Assignee: Plastics Enginerring Company
    Inventors: Ralph T. Brotz, Paschal A. Sciarra, Jr., Phillip A. Waitkus
  • Patent number: 5714539
    Abstract: A polymeric surfactant comprises the reaction product of ethylentcally unsaturated monomers at least 40 percent by weight of which are acid group containing monomers, including a combination of both acrylic acid and methacrylic acid, at least a portion of the acid groups being neutralized by a base. Also disclosed is an aqueous acrylic latex made by polymerizing a second polymer from ethylenically unsaturated monomers in the presence of said polymeric surfactant, whereby the latex comprises polymeric particles containing two polymers. The latex may be used to advantage in very low V.O.C. coatings that may be spray applied.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: February 3, 1998
    Assignee: PPG Industries, Inc.
    Inventors: Leon Perez, Shanti Swarup, Edward E. McEntire, Lisa E. Jakiela
  • Patent number: 5712328
    Abstract: An aqueous ball point ink composition comprising a key aqueous ball point ink composition comprising coloring materials consisting of (pigment and pigment dispersant) and/or precolored emulsion resin, water-soluble organic solvent, pseudoplastic imparting agent and water and cross-linked polyacrylate salt in a proportion of about 0.05-0.5% by weight based on the amount of said key aqueous ball point ink composition.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: January 27, 1998
    Assignee: Sakura Color Products Corporation
    Inventors: Shigeyasu Inoue, Toshimitsu Kawasumi
  • Patent number: 5710206
    Abstract: A gel or gelloid composition contains (a) more than 50% by weight (based on total polymer content) of a block copolymer containing relatively hard blocks and relatively elastomeric blocks; (b) a polyphenylene ether; and (c) at least 500 parts by weight of an extender liquid per 100 parts by weight of the block copolymer, which liquid extends and softens the elastomeric blocks of the block copolymer. The polyphenylene ether is present in an amount sufficient to increase the softening or melting temperature of the gel or gelloid composition over that of the same composition without polyphenylene ether. The gel or gelloid composition is useful for sealing applications.
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: January 20, 1998
    Assignee: Raychem Limited
    Inventors: Jane Valarie Francis, Noel Marchel Michiel Overbergh, Jan Lodewijk M. F. G. Vansant
  • Patent number: 5705560
    Abstract: This invention is a new aqueous paint composition, and its object is to provide a quick-drying paint composition that has a low sensitivity to temperature and has a high rubber elasticity.An aqueous paint composition, comprising (1) a latex which is a film-forming latex polymer having anionic property, where the solubility of the monomers to form the polymer, excluding the monomers that show anionic property, is 0.01-1.50 g per 100 g of water, (2) a water-soluble or water dispersible polymer formed from a monomer mixture containing at least 20 weight % of amine functional group-containing monomer, and (3) an amount of volatile base sufficient to raise the pH of the composition to a sufficiently high level to bring essentially all amine functional groups to a nonionic state.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: January 6, 1998
    Assignee: Rohm and Haas Company
    Inventors: Kunihide Takarabe, Yoshio Tamura, Takayuki Sugiyama, Tomohiro Shinoda, James Keith Bardman
  • Patent number: 5705558
    Abstract: Water-reducible coating formulations suitable for use in thermal reflow coating protocols are described. The water-based coating formulations comprise an aqueous dispersion of a resin solids composition. The resin solids comprise about 70 to about 99% by weight of an acrylic resin having a glass transition temperature less than 150.degree. F. and an effective amount of a reflow modifier selected from a thermoplastic resin having a glass transition temperature greater than 150.degree. F. or less than 80% of the stoichiometric amount of a cross-linking agent for the acrylic resin. The improved water-based formulations in accordance with the invention provide high gloss, thermally reflowable coatings without the high organic volatiles content of art-recognized thermal reflow coating systems.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: January 6, 1998
    Assignee: C.P., Inc.
    Inventor: James N. Krouse