Patents by Inventor Kenneth G. Hahn, Jr.

Kenneth G. Hahn, Jr. 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).

  • Patent number: 5015687
    Abstract: The pigmented paint coating composition is based on a cationic free polymeric binder comprising a cationic free, functional emulsion polymer and glycoluril where the emulsion polymer are adapted to coreact to form a thermoset paint film, and said polymeric binder is combined with a low-cation opacifying pigment. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers but excluding amine monomers, in an aqueous polymerization medium, to produce the reactive emulsion polymer. The emulsion polymer and the glycoluril derivative are treated with ion-exchange step to produce the cation-free polymeric binder.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: May 14, 1991
    Assignee: The Glidden Company
    Inventors: Kenneth G. Hahn, Jr., Barbara L. Kunz
  • Patent number: 4981883
    Abstract: A stabilized aqueous, thermosetting coating composition substantially free of acid cure catalysts comprises a mixture of an ion-exchanged reactive function emulsion polymer and a glycoluril derivative adapted to coreact and crosslink the functional polymer where certain cations are added to the ion-exchanged mixture to provide a pH of the mixture between 2 and 5.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: January 1, 1991
    Assignee: The Glidden Company
    Inventors: Barbara L. Kunz, Kenneth G. Hahn, Jr.
  • Patent number: 4956401
    Abstract: The pigmented paint coating composition is based on a cationic free polymeric binder comprising a cationic free, functional emulsion polymer and glycoluril where the emulsion polymer are adapted to coreact to form a thermoset paint film, and said polymeric binder is combined with a low-cation opacifying pigment. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers but excluding amine monomers, in an aqueous polymerization medium, to produce the reactive emulsion polymer. The emulsion polymer and the glycoluril derivative are treated with ion-exchange step to produce the cation-free polymeric binder.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: September 11, 1990
    Assignee: The Glidden Company
    Inventors: Kenneth G. Hahn, Jr., Barbara L. Kunz
  • Patent number: 4921888
    Abstract: A stabilized aqueous, thermosetting coating composition substantially free of acid cure catalysts comprises a mixture of an ion-exchanged reactive function emulsion polymer and a glycoluril derivative adapted to coreact and crosslink the functional polymer where certain cations are added to the ion-exchanged mixture to provide a pH of the mixture between 2 and 5.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: May 1, 1990
    Assignee: The Glidden Company
    Inventors: Barbara L. Kunz, Kenneth G. Hahn, Jr.
  • Patent number: 4900592
    Abstract: An aqueous thermosetting protective coating composition cures by water evaporation followed by thermosetting crosslinking of the polymeric binder. The polymeric binder is ion-exchanged to remove cations and reduce the pH to less than 2.5 and comprises copolymerized ethylenic monomers including a beta-hydroxy ester monomer, whereby the polymer is self-curing by crosslinking by transesterification through hydroxy groups and beta-ester groups.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: February 13, 1990
    Assignee: The Glidden Company
    Inventors: Kenneth G. Hahn, Jr., Gary P. Craun
  • Patent number: 4853422
    Abstract: A paint coating comprising a self-curing emulsion polymer having functional carboxyl groups or hydroxyl groups as well as alkylol acrylamide, but is substantially free of amine groups, where the self-curing emulsion polymer is ion-exchanged to render said polymer self-curing.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: August 1, 1989
    Assignee: The Glidden Company
    Inventor: Kenneth G. Hahn, Jr.
  • Patent number: 4812491
    Abstract: A paint coating comprising a self-curing emulsion polymer having functional carboxyl groups or hydroxyl groups as well as alkylol acrylamide, but is substantially free of amine groups, where the self-curing emulsion polymer is ion-exchanged to render said polymer self-curing.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: March 14, 1989
    Assignee: The Glidden Company
    Inventor: Kenneth G. Hahn, Jr.
  • Patent number: 4789694
    Abstract: The paint coating composition comprises a cationic free, functional emulsion polymer mixture adapted to be coreacted at room temperature with glycoluril to provide a cured thermoset paint film. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers, but excluding amine monomers, in an aqueous polymerization medium, followed by ion exchange of the resulting reactive emulsion polymer. Preferably, the glycoluril is processed through an ion exchange step separately or in conjunction with the reactive emulsion polymer. The resulting polymers are useful as binders in ambient cure surface coating application.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: December 6, 1988
    Assignee: The Glidden Company
    Inventor: Kenneth G. Hahn, Jr.
  • Patent number: 4728680
    Abstract: The composition comprises a cationic free, functional emulsion polymer mixture adapted to be coreacted with glycoluril. The process comprises copolymerizing ethylenically unsaturated monomers, including functional monomers but excluding amine monomers, in an aqueous polymerization medium. The resulting polymers are useful in surface coating application generally as well as specifically for wood substrates.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: March 1, 1988
    Assignee: The Glidden Company
    Inventor: Kenneth G. Hahn, Jr.
  • Patent number: 4521495
    Abstract: A process for treating wood substrate, including textured hardboard having surface irregularities consisting of high ridge areas protruding above the surface, with a low viscosity aqueous coating to produce a coated article having substantially uniform film thickness. A substantially uniform film can be obtained by preheating the substrate (about 250.degree. to 400.degree. F.), flooding the surface with the aqueous coating, partially dewatering and affixing the coating to the surface by coalescence and removing the excess coating. It is necessary to critically control the substrate temperature and time in which the coating remains in contact with the heated substrate before the excess coating is removed using an air knife.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: June 4, 1985
    Assignee: SCM Corporation
    Inventor: Kenneth G. Hahn, Jr.
  • Patent number: 4444941
    Abstract: Thermosetting low temperature cure coating compositions produced by combining certain acrylamide emulsion polymers containing both carboxyl and hydroxyl groups with a glycoluril whereby both the carboxyl and hydroxyl groups cross-link with the glycoluril upon curing.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: April 24, 1984
    Assignee: SCM Corporation
    Inventors: David A. Borovicka, Sr., Kenneth G. Hahn, Jr., John T. Tupa
  • Patent number: 4442257
    Abstract: Thermosetting low temperature cure coating compositions produced by combining certain emulsion polymers containing reactive hydroxyl groups, carboxyl groups, and acrylamide groups with a dimethylol dihydroxy ethylene urea whereby the hydroxyl groups cross-link with the dimethylol dihydroxy ethylene urea upon curing. Preferred emulsion polymers are acrylamide polymers.
    Type: Grant
    Filed: October 22, 1982
    Date of Patent: April 10, 1984
    Assignee: SCM Corporation
    Inventors: David A. Borovicka, Sr., Kenneth G. Hahn, Jr., John T. Tupa