Patents by Inventor Martha J. Collins

Martha J. Collins 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: 6417267
    Abstract: This invention provides the composition, preparation, and end-use of waterborne crosslinking technology based compositions prepared from water-based latexes. The invention provides a water-based latex comprising dispersed, waterborne amino-functional polymer particles; dispersed, waterborne acetoacetoxy-functional polymer particles; and water. In a preferred embodiment, a latex of the invention comprises dispersed, waterborne polymeric (polyamino)enamine (PPAE) particles; dispersed, waterborne acetoacetoxy-functional polymer particles; and water. The PPAE is the reaction product of a surfactant-stabilized acetoacetoxy-functional polymer (SAAP) and a poly(alkylenimine). The water-based latexes of the invention provide stable emulsions containing a blend of waterborne polymer particles which undergo crosslinking upon film formation. The latex films or coatings may be cured at ambient temperatures or may be thermally cured.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: July 9, 2002
    Assignee: Eastman Chemical Company
    Inventors: Rebecca R. Stockl, Martha J. Collins, James W. Taylor
  • Patent number: 5539073
    Abstract: This invention provides polymers useful in coating compositions. The polymers are prepared via a free radical polymerization using ethylenically unsaturated monomers. The polymers of this invention possess pendant allylic groups which are capable of effecting free-radical flux when the compositions are applied to a substrate and exposed to oxygen. Coatings formed from preferred compositions possess superior solvent, print, and block resistance.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: July 23, 1996
    Assignee: Eastman Chemical Company
    Inventors: James W. Taylor, Martha J. Collins, Mark D. Clark
  • Patent number: 5439982
    Abstract: This invention relates to reactive polymers, e.g., aqueous emulsion polymers, having pendant flexible or dangling side chains prepared from ethylenically unsaturated carbodiimides, e.g., carbodiimide (meth)acrylates. The reactive polymers contain ethylenic unsaturation near the surface or in the surface area of the particles that form the polymers, the ethylenic unsaturation being connected to the polymer through the pendant flexible or dangling side chains. This invention also relates to the process for preparing the reactive polymers, to crosslinkable formulations based on the reactive polymers, and to thermoplastic and crosslinked films prepared from the reactive polymers. The reactive polymers are useful as decorative and functional coatings, inks, adhesives, textile coatings and sealants.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: August 8, 1995
    Assignee: Union Carbide Chemical & Plastic Technology Corporation
    Inventors: James W. Taylor, Martha J. Collins, David R. Bassett
  • Patent number: 5371148
    Abstract: This invention relates to reactive polymers, e.g., aqueous emulsion polymers, having pendant flexible or dangling side chains prepared from ethylenically unsaturated carbodiimides, e.g., carbodiimide (meth)acrylates. The reactive polymers contain ethylenic unsaturation near the surface or in the surface area of the particles that form the polymers, the ethylenic unsaturation being connected to the polymer through the pendant flexible or dangling side chains. This invention also relates to the process for preparing the reactive polymers, to crosslinkable formulations based on the reactive polymers, and to thermoplastic and crosslinked films prepared from the reactive polymers. The reactive polymers are useful as decorative and functional coatings, inks, adhesives, textile coatings and sealants.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: December 6, 1994
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: James W. Taylor, Martha J. Collins, David R. Bassett