The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 2016
Filed:
Feb. 22, 2012
Applicants:
James Keith Bardman, Green Lane, PA (US);
Karl Allen Bromm, Forest Grove, PA (US);
Inventors:
James Keith Bardman, Green Lane, PA (US);
Karl Allen Bromm, Forest Grove, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/36 (2006.01); C08K 3/22 (2006.01); C08L 33/08 (2006.01);
U.S. Cl.
CPC ...
C08K 3/22 (2013.01); C08L 33/08 (2013.01); C09C 1/3676 (2013.01);
Abstract
The present invention relates an aqueous dispersion of low Tpolymer encapsulating TiOparticles and a process for preparing the dispersion. The encapsulating polymer is a (meth)acrylate polymer, a styrene-acrylate copolymer, or a vinyl acetate-(meth)acrylate copolymer, or a combination thereof, and the encapsulating polymer further contains units of sodium styrene sulfonate. The present invention provides encapsulated TiOparticles with low gel that are film-forming at ambient temperatures, especially for coatings applications.