Patents Assigned to DAP Inc.
  • Stability conductive emulsions
    Patent number: 5234627
    Abstract: Improved conductive latex dispersions are disclosed comprising a specific blend of conductive carbon black particles. The carbon black component of the blend comprises acetylene carbon black particles and furnace black particles, with the furnace black particles having a nitrogen surface area (m.sup.2 /gm) of about 250 or greater and a DBP absorption value cc/100 gm of about 180 or above. The dispersions exhibit stable viscosity upon usage and storage and still result in acceptable conductivity.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: August 10, 1993
    Assignee: DAP, Inc.
    Inventor: Brian L. Damschroder
  • Storage stable 100% solids high ortho phenol formaldehyde hot melt adhesives
    Patent number: 5182357
    Abstract: One hundred percent thermosetting phenol/formaldehyde (P/F) resin and method of preparation thereof are disclosed. The resin comprises a molar ratio of F/P of about 1.2-1.7, has a softening point of about 80.degree. C. and cures at temperature of about 140.degree.-160.degree. C. The method comprises heating the reactants in a solvent-less system in the presence of an ortho directing catalyst while monitoring the amount of free formaldehyde present in the reaction system.
    Type: Grant
    Filed: October 22, 1991
    Date of Patent: January 26, 1993
    Assignee: DAP, Inc.
    Inventor: Gary L. Linden
  • Aqueous, silicone-containing coating composition for high temperature appliances
    Patent number: 4855348
    Abstract: A storage stable water-based paint comprising a solid silicone resin and an ammonium salt of a drying oil modified acrylic copolymer provide a coating for barbecue grills and other appliances that are subjected to temperatures as high as 1300.degree. F. A smooth and continuous coating remains on the metal after burning off of the acrylic resin and firing of the metal at 1300.degree. F. The paint is redispersible and may be drawn down to 1.5 mils after storage at 120.degree. F. for more than 3 months when the pH is at least about 8.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: August 8, 1989
    Assignee: DAP Inc.
    Inventor: Hartzel G. Strader
  • Aqueous aerosol coating composition
    Patent number: 4578415
    Abstract: An aqueous aerosol coating composition, which comprises an ammonium or amine salt of a drying oil-modified copolymer of an alkyl acrylate of 3 to 5 carbon atoms in the alkyl moiety and an alkyl methacrylate having 3 to 5 carbon atoms in the alkyl moiety, having an average molecular weight of not more than about 9,000, a water soluble organic solvent, water and dimethyl ether.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: March 25, 1986
    Assignee: DAP Inc.
    Inventor: Eugene L. Learner
  • Cleaning and priming composition containing titanium acetylacetonate and method
    Patent number: 4281037
    Abstract: Compositions for cleaning and priming a surface comprising a solution of titanium acetylacetonate; alkanol having 1 to 4 carbon atoms; alkanol selected from methylethylkeytone, methylisobutylketone, acetone and their mixture; and water.The compositions, which perform both cleaning and priming in a one-step operation, cure quickly allowing rapid painting.
    Type: Grant
    Filed: August 8, 1980
    Date of Patent: July 28, 1981
    Assignee: DAP, Inc.
    Inventor: Hun R. Choung
  • Effervescent adhesive-forming product
    Patent number: 4184888
    Abstract: An effervescent product useful for forming a holding adhesive, especially a wall covering adhesive, is disclosed herein.
    Type: Grant
    Filed: March 1, 1978
    Date of Patent: January 22, 1980
    Assignee: DAP Inc.
    Inventor: Hani F. Zoumut