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:
Feb. 01, 2011
Filed:
Apr. 04, 2008
Applicant:
Ira John Westerman, Wadsworth, OH (US);
Inventor:
Ira John Westerman, Wadsworth, OH (US);
Assignee:
OMNOVA Solutions Inc., Fairlawn, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 257/02 (2006.01); C08F 291/00 (2006.01); C08F 2/22 (2006.01); C08F 2/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polymer latex suitable for use in gypsum wallboard or other applications. The polymer latex is a styrene butadiene latex that is substantially stable against divalent ions. The polymer latex includes styrene, butadiene, and an ionic monomer comprised of a 2-acrylamido-2-methyl propanesulfonic acid salt. The polymer latex may also include hydrophilic adjunct comonomers. The latex includes at least 0.25 wt. % of the ionic monomer.