Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 1, 2011
Patent Application Number
12080656
Date Filed
April 4, 2008
Patent Primary Examiner
Patent 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.
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