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:
Jun. 21, 2016
Filed:
Sep. 11, 2014
Applicant:
Rohm and Haas Company, Philadelphia, PA (US);
Inventors:
Kathleen A. Auld, Collegeville, PA (US);
James Keith Bardman, Green Lane, PA (US);
Michele Heffner, Chalfont, PA (US);
David G. Kelly, Ambler, PA (US);
Michael Rhodes, Chalfont, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/22 (2006.01); B05D 7/00 (2006.01); C09D 131/04 (2006.01); C09C 1/36 (2006.01); C09D 5/02 (2006.01); C09D 7/12 (2006.01);
U.S. Cl.
CPC ...
C09D 131/04 (2013.01); C08K 3/22 (2013.01); C09C 1/3676 (2013.01); C09D 5/028 (2013.01); C09D 7/1225 (2013.01); C08K 2003/2241 (2013.01); Y10T 428/2998 (2015.01);
Abstract
A process for encapsulating TiOparticles by polymerizing sodium styrene sulfonate with a redox initiator system; then polymerizing a first monomer mixture comprising at least 60 wt % acrylic monomers; then polymerizing a second monomer mixture comprising at least 40 wt % vinyl ester monomers.