Patents Assigned to UCB CHIP Inc.
  • 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
  • Polymerization process
    Patent number: 6667373
    Abstract: A staged method of forming vinyl (e.g.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: December 23, 2003
    Assignee: UCB Chip, Inc.
    Inventors: Marilyn Grolitzer, Jun Lu, Ming 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