Patents by Inventor Rubing Cai

Rubing Cai 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).

  • Polyimine/polyisocyanate coating composition
    Patent number: 6828405
    Abstract: A coating composition having excellent cure at ambient conditions and comprising (i) at least one imine, (ii) a polyisocyanate having an average of at least two isocyanate groups per molecule, (iii) at least one polyaspartic ester, and (iv) an isocyanate functional urethane; wherein the coating composition is substantially free of hydroxy functionality. Coatings produced from the coating composition of this invention exhibit superior performance on flexible substrates.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: December 7, 2004
    Assignee: The Sherwin-Williams Company
    Inventor: Rubing Cai
  • Dicarboxylic acid-functional monomers and polymers prepared from same
    Patent number: 5863998
    Abstract: An unsaturated acid-functional monomer having the structure: ##STR1## wherein R is hydrogen or methyl and polymers prepared using the monomer are disclosed.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: January 26, 1999
    Assignee: The Sherwin-Williams Company
    Inventor: Rubing Cai
  • Anhydrid-functional monomers and polymers and reactive compositions prepared from same
    Patent number: 5618884
    Abstract: Anhydride-functional polymerizable monomers having the structure: ##STR1## and polymers and reactive compositions prepared from these monomers are disclosed. The reactive compositions are especially useful in primer and clearcoat/basecoat applications.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: April 8, 1997
    Assignee: The Sherwin-Williams Company
    Inventors: Rubing Cai, Thomas W. Yokoyama
  • Anhydride-functional monomers and polymers and reactive compositions prepared from same
    Patent number: 5609963
    Abstract: Anhydride-functional polymerizable monomers having the structure: ##STR1## and polymers and reactive compositions prepared from these monomers are disclosed. The reactive compositions are especially useful in primer and clearcoat/basecoat applications.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: March 11, 1997
    Assignee: The Sherwin-Williams Company
    Inventors: Rubing Cai, Thomas W. Yokoyama
  • Polyimine/polyisocyanate coating composition containing polymeric anhydride
    Patent number: 5591807
    Abstract: A coating composition having extended pot-life and excellent cure at ambient conditions. The coating composition comprises (i) at least one imine, (ii) a polyisocynate having an average of at least two isocyanate groups per molecule, (iii) at least one polyaspartic ester, and (iv) an anhydride functional polymer; wherein the coating composition is substantially free of hydroxy functionality.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: January 7, 1997
    Assignee: The Sherwin-Williams Company
    Inventors: Rubing Cai, Walter E. Hawrysko
  • Process for preparing anhydride-functional monomers
    Patent number: 5580995
    Abstract: Anhydride-functional polymerizable monomers having the structure: ##STR1## and polymers and reactive compositions prepared from these monomers are disclosed. The reactive compositions are especially useful in primer and clearcoat/basecoat applications.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: December 3, 1996
    Assignee: The Sherwin-Williams Company
    Inventor: Rubing Cai
  • Anhydride-functional monomers and polymers and reactive compositions prepared from same
    Patent number: 5364945
    Abstract: Anhydride-functional polymerizable monomers having the structure: ##STR1## and polymers and reactive compositions prepared from these monomers are disclosed. The reactive compositions are especially useful in primer and clearcoat/basecoat applications.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: November 15, 1994
    Assignee: The Sherwin-Williams Company
    Inventors: Rubing Cai, Thomas W. Yokoyama