Patents Assigned to M. Grumbacher, Inc.
  • Water reducible artists'
    Patent number: 5421875
    Abstract: This invention provides a water-reducible oil paint, capable of maintaining a stable suspension of coloring pigment during storage, and having the mechanical, coloring and drying properties of a traditional oil paint and methods for making same. The oil paint comprises a pigment, a base gel composition and an emulsifier-amine soap composition; the base gel composition comprises a traditional drying or semi-drying oil or oil acid, a nonionic or mixed nonionic-anionic emulsifier, having an HLB value in the range of from about 8 to about 18, and a thixotropic gel stabilizer; the emulsifier-amine soap compositon comprises at least one amine soap of an acid, selected from mono- and di-unsaturated drying oil acids, and a nonionic or mixed nonionic-anionic emulsifier. In another embodiment of the invention, the oil paint comprises at least one pigment, a complementary stabilizer, an emulsifier, a polymeric dispersant, a traditional stabilizer, optionally a wetting agent, and a drying oil.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: June 6, 1995
    Assignee: M. Grumbacher, Inc.
    Inventors: Godfrey Chambers, Wayne M. Hoyte, George J. Stegmeir
  • Water reducible artists' oil paints compositions
    Patent number: 5312482
    Abstract: This invention provides a water-reducible oil paint, capable of maintaining a stable suspension of coloring pigment during storage, and having the mechanical, coloring and drying properties of a traditional oil paint. The oil paint comprises a pigment, a base gel composition and an emulsifier- amine soap composition; the base gel composition comprises a traditional drying or semi-drying oil or oil acid, a nonionic or mixed nonionic-anionic emulsifier, having an HLB value in the range of from about 8 to about 18, and a thixotropic gel stabilizer; the emulsifier-amine soap composition comprises at least one amine soap of an acid, selected from mono- and di-unsaturated drying oil acids, and a nonionic or mixed nonionic-anionic emulsifier. The preferred embodiment of this invention is a high-solids artists' oil paint.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: May 17, 1994
    Assignee: M. Grumbacher, Inc.
    Inventors: Godfrey Chambers, Wayne M. Hoyte, George J. Stegmeir
  • Display rack
    Patent number: D253213
    Type: Grant
    Filed: October 7, 1976
    Date of Patent: October 23, 1979
    Assignee: M. Grumbacher, Inc.
    Inventors: John Hudik, George S. Northrop, Richard F. Schneider, Melvyn D. Canter
  • Display module for booklets and the like
    Patent number: D292659
    Type: Grant
    Filed: September 21, 1984
    Date of Patent: November 10, 1987
    Assignee: M. Grumbacher, Inc.
    Inventors: John Svezia, Robert N. Marona
  • Vertically-mountable brush holder
    Patent number: D338916
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: August 31, 1993
    Assignee: M. Grumbacher, Inc.
    Inventors: William Hoover, Richard Schneider, Ronald Greenfield