Patents by Inventor Paul E. Kestyn

Paul E. Kestyn 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).

  • Environmentally safe paint stripper
    Patent number: 6790891
    Abstract: Environmentally safe, e.g. biodegradable, paint stripper compositions comprising 10-99 parts dimethyl esters of C4-C6 aliphatic dibasic acids, 0.1-40 parts polyvinyl butyral and 1-90 parts water. The compositions can be mixed, e.g. in high shear to provide stable emulsions which strip paint, e.g. varnish from wood. Certain embodiments of the invention also comprise water soluble organic solvents, water-miscible organic solvents, surfactants, emulsifiers, thickeners and/or pigments.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: September 14, 2004
    Assignee: UCB Chip Inc.
    Inventors: Paul E. Kestyn, Augustin T. Chen, Hong Zhao
  • Environmentally safe paint stripper
    Publication number: 20030207972
    Abstract: Environmentally safe, e.g. biodegradable, paint stripper compositions comprising 10-99 parts dimethyl esters of C4-C6 aliphatic dibasic acids, 0.1-40 parts polyvinyl butyral and 1-90 parts water. The compositions can be mixed, e.g. in high shear to provide stable emulsions which strip paint, e.g. varnish from wood. Certain embodiments of the invention also comprise water soluble organic solvents, water-miscible organic solvents, surfactants, emulsifiers, thickeners and/or pigments.
    Type: Application
    Filed: April 16, 2003
    Publication date: November 6, 2003
    Inventors: Paul E. Kestyn, Augustin T. Chen, Hong Zhao
  • Environmentally safe paint stripper emulsion
    Patent number: 6624222
    Abstract: Environmentally safe, e.g. biodegradable, paint stripper compositions comprising 10-99 parts dimethyl esters of C4-C6 aliphatic dibasic acids, 0.1-40 parts polyvinyl butyral and 1-90 parts water. The compositions can be mixed, e.g. in high shear to provide stable emulsions which strip paint, e.g. varnish from wood. Certain embodiments of the invention also comprise water soluble organic solvents, water-miscible organic solvents, surfactants, emulsifiers, thickeners and/or pigments.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: September 23, 2003
    Assignee: UCB CHIP Inc.
    Inventors: Paul E. Kestyn, Augustin T. Chen, Hong Zhao
  • Low gloss coating
    Patent number: 6331582
    Abstract: A liquid surface coating composition which exhibits low gloss after curing or drying comprises binder resin other than polyvinyl acetal, pigment colorant and a gloss-reducing amount of matting agent consisting essentially of polyvinyl acetal containing acetal groups derived from one or more aliphatic or aromatic aldehydes having 1 to 10 carbon atoms, preferably polyvinyl butyral of weight average molecular weight between 10,000 to 500,000 Daltons.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: December 18, 2001
    Assignee: Solutia Inc.
    Inventors: Augustin T. Chen, Paul E. Kestyn, Hong Zhao
  • Environmentally safe paint stripper
    Publication number: 20010036988
    Abstract: Environmentally safe, e.g. biodegradable, paint stripper compositions comprising 10-99 parts dimethyl esters of C4-C6 aliphatic dibasic acids, 0.1-40 parts polyvinyl butyral and 1-90 parts water. The compositions can be mixed, e.g. in high shear to provide stable emulsions which strip paint, e.g. varnish from wood. Certain embodiments of the invention also comprise water soluble organic solvents, water-miscible organic solvents, surfactants, emulsifiers, thickeners and/or pigments.
    Type: Application
    Filed: January 24, 2001
    Publication date: November 1, 2001
    Inventors: Paul E. Kestyn, Augustin T. Chen, Hong Zhao