Patents by Inventor Eileen E. Konsza

Eileen E. Konsza 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: 5266406
    Abstract: A waterbased coating composition formed of an acrylic latex and an acrylic hydrosol dispersed in an aqueous carrier and has a pH of about 7-10; wherein the binder is a blend of an acrylic latex polymer having a particle size of about 0.06-0.20 microns and an acrylic hydrosol polymer having a particle size of less than 0.30 microns; wherein the blend containsa methylol (meth)acrylamide acrylic latex polymer of polymerized monomers of alkyl methacrylate, alkyl acrylate or mixtures thereof, 1-15% by weight of methylol methacrylamide, methylol acrylamide or mixtures thereof, 0.5-10% by weight of ethylenically unsaturated carboxylic acid having reactive carboxyl groups, 0.5-10% by weight of ethylenically unsaturated hydroxyl monomer and the carboxyl groups of the carboxylic acid component of the polymer are reacted with ammonia or an amine; and an acrylic hydrosol polymer of methylol (meth)acrylamide acrylic polymer containing about 0.5-10% by weight of an ethylenically unsaturated carboxylic acid, 0.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: November 30, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Herman C. Den Hartog, Eileen E. Konsza, James F. Matthews, Ervin R. Werner, Jr.
  • Patent number: 5219916
    Abstract: A waterbased coating composition formed of an acrylic latex and an acrylic hydrosol dispersed in an aqueous carrier and has a pH of about 7-10; wherein the binder is a blend of an acrylic latex polymer having a particle size of about 0.06-0.20 microns and an acrylic hydrosol polymer having a particle size of less than 0.30 microns; wherein the blend containsa methylol (meth)acrylamide acrylic latex polymer of polymerized monomers of alkyl methacrylate, alkyl acrylate or mixtures thereof, 1-15% by weight of methylol methacrylamide, methylol acrylamide or mixtures thereof, 0.5-10% by weight of ethylenically unsaturated carboxylic acid having reactive carboxyl groups, 0.5-10% by weight of ethylenically unsaturated hydroxyl monomer and the carboxyl groups of the carboxylic acid component of the polymer are reacted with ammonia or an amine; and an acrylic hydrosol polymer of methylol (meth)acrylamide acrylic polymer containing about 0.5-10% by weight of an ethylenically unsaturated carboxylic acid, 0.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: June 15, 1993
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Herman C. Den Hartog, Eileen E. Konsza, James F. Matthews, Ervin R. Werner, Jr.
  • Patent number: 5204404
    Abstract: A waterbased coating composition containing about 10-30% by weight of film forming binder dispersed in an aqueous carrier; wherein the binder containsa. an acrylic silane polymer of polymerized monomers of alkyl methacrylate, alkyl acrylate or mixtures thereof, a silane containing alkyl acrylate or methacrylate and the polymer has an acid no. of 2-100 and a hydroxyl no. of up to 100, a glass transition temperature of -40.degree. to 25.degree. C. and a weight average molecular weight of 500,000 to 3,000,000; andb. a polyurethane selected from the following group: polyester urethane, polyether urethane or polyacrylourethane;the composition is useful for painting and refinishing the exterior of automobiles and trucks.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: April 20, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ervin R. Werner, Jr., Eileen E. Konsza
  • Patent number: 5006413
    Abstract: A waterbased coating composition containing about 10-30% by weight of film forming binder dispersed in an aqueous carrier; wherein the binder contains abouta. 60-90% by weight, based on the weight of the binder, of a methylol (meth)acrylamide acrylic polymer of polymerized monomers of alkyl methacrylate, alkyl acrylate or mixtures thereof, 1-10% by weight, based on the weight of the acrylic polymer, of methylol methacrylamide, methylol acrylamide or mixtures thereof, 0.5-10% by weight, based on the weight of the acrylic polymer, of an ethylenically unsaturated carboxylic acid, 0.5-10% by weight, based on the weight of the acrylic polymer, of an ethylenically unsaturated hydroxyl containing monomer and the acrylic polymer has a glass transition temperature of -40 to +40C and a weight average molecular weight of 500,000 to 3,000,000; and the carboxyl groups of the carboxylic acid are reacted with ammonia to provide a pH to the composition of about 7.0-10.0;b.
    Type: Grant
    Filed: April 17, 1990
    Date of Patent: April 9, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Herman C. Den Hartog, Eileen E. Konsza, James F. Matthews, Ervin R. Werner, Jr.
  • Patent number: 4954559
    Abstract: A waterbased coating composition containing about 10-30% by weight of film forming binder dispersed in an aqueous carrier; wherein the binder contains abouta. 60-90% by weight, based on the weight of the binder, of a methylol (meth)acrylamide acrylic polymer of polymerized monomers of alkyl methacrylate, alkyl acrylate or mixtures thereof, 1-10% by weight, based on the weight of the acrylic polymer, of methylol methacrylamide, methylol acrylamide or mixtures thereof, 0.5-10% by weight, based on the weight of the acrylic polymer, of an ethylenically unsaturated carboxylic acid, 0.5-10% by weight, based on the weight of the acrylic polymer, of an ethylenically unsaturated hydroxyl containing monomer and the acrylic polymer has a glass transition temperature of -40.degree. to +40.degree. C. and a weight average molecular weight of 500,000 to 3,000,000; and the carboxyl groups of the carboxylic acid are reacted with ammonia to provide a pH to the composition of about 7.0-10.0;b.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: September 4, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Herman C. Den Hartog, Eileen E. Konsza, James F. Matthews, Ervin R. Werner, Jr.