Patents by Inventor Henry J. DeGraaf

Henry J. DeGraaf has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Aqueous dispersed acrylic-epoxy, branched epoxy protective coatings
    Patent number: 5942563
    Abstract: An aqueous protective coating composition particularly useful for can coatings is based on a polymeric binder comprising epoxy crosslinked microgel particles. The microgel polymer is produced by dispersing into water a carboxyl functional, acrylic-epoxy grafted copolymer, and combined with a high molecular weight, branched, multifunctional epoxide resin, followed by coreaction and crosslinking between the carboxyl copolymer and branched epoxide to form stable aqueous dispersed microgel particles. In a preferred aspect of the invention, low molecular weight liquid diepoxide is dispersed into and crosslinked with the carboxyl functional acrylic grafted epoxy copolymer.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: August 24, 1999
    Assignee: The Glidden Company
    Inventor: Henry J. DeGraaf
  • Aqueous dispersed, acrylic grafted epoxy microgel protective coatings
    Patent number: 5508325
    Abstract: An aqueous protective coating composition particularly useful for can coatings is based on a polymeric binder comprising epoxy crosslinked microgel particles. The microgel polymer is produced by dispersing into water a carbon grafted, carboxyl functional acrylic-epoxy copolymer, and combined with low molecular weight diepoxide, followed by coreaction and crosslinking between the carboxyl copolymer and diepoxide to form stable aqueous dispersed microgel particles.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: April 16, 1996
    Assignee: The Glidden Company
    Inventors: Gary P. Craun, David J. Telford, Henry J. DeGraaf
  • Thermosetting acid functional crystalline polyester modified acrylic coatings
    Patent number: 5418292
    Abstract: Clear and pigmented powder paint coatings are based on a thermosetting polymeric binder comprising low molecular weight, carboxylic acid functional, crystalline polyester and a coreactive glycidyl functional addition copolymer, preferably and glycidyl functional acrylic copolymer.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: May 23, 1995
    Assignee: Ferro Corporation
    Inventors: Daniel Bode, Perry A. Toman, Henry J. DeGraaf, Susan M. Miller
  • Polyester-arcylic graft polymers for use in powder coatings
    Patent number: 5350810
    Abstract: A thermosetting powder paint coating containing a polymeric binder comprising a polyester graft acrylic copolymer and a low molecular weight crystalline polyester. The coatings can be pigmented or non-pigmented. The polyester-graft-acrylic copolymer can be self-crosslinking by the inclusion of beta-hydroxy ester groups or crosslinked by an external crosslinker.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: September 27, 1994
    Assignee: Ferro Corporation
    Inventors: Henry J. DeGraaf, Susan M. Sobek
  • Polyester-acrylic graft polymers for use in powder coatings
    Patent number: 5280089
    Abstract: A thermosetting powder paint coating containing a polymeric binder comprising a polyester graft acrylic copolymer and a low molecular weight crystalline polyester. The coatings can be pigmented or non-pigmented. The polyester-graft-acrylic copolymer can be self-crosslinking by the inclusion of beta-hydroxy ester groups or crosslinked by an external crosslinker.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: January 18, 1994
    Assignee: Ferro Corporation
    Inventors: Henry J. DeGraaf, Susan M. Sobek
  • High solids coatings using unsaturated monoisocyanate adducts of alkyd resins
    Patent number: 4609706
    Abstract: High solids alkyd resin coatings are prepared by reacting at least a portion of the available hydroxyl groups on a resin with an ethylenically unsaturated monoisocyanate monomer. The new products, useful both as the major vehicle resin in high solids coatings and as a cure modifier for oxidatively curable alkyd, polyester and acrylic resins, impart improved drying and weathering properties to coatings while maintaining low paint viscosity.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: September 2, 1986
    Assignee: SCM Corporation
    Inventors: Daniel Bode, Henry J. DeGraaf
  • Aqueous glycoluril thermosetting coating
    Patent number: 4525535
    Abstract: A protective surface coating composition particularly useful for wood coating containing hydroxylated polyester, glycoluril, and emulsion polymer can be heat cured to produce cured films on substrates. The coating is particularly useful as wood coatings.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: June 25, 1985
    Assignee: SCM Corporation
    Inventors: Gary P. Craun, Henry J. DeGraaf
  • Polyester-acrylic graft polymers for use in powder coatings
    Patent number: RE35759
    Abstract: A thermosetting powder paint coating containing a polymeric binder comprising a polyester graft acrylic copolymer and a low molecular weight crystalline polyester. The coatings can be pigmented or non-pigmented. The polyester-graft-acrylic copolymer can be self-crosslinking by the inclusion of beta-hydroxy ester groups or crosslinked by an external crosslinker.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: March 31, 1998
    Assignee: Ferro Corporation
    Inventors: Henry J. DeGraaf, Susan M. Sobek