Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2007-07-10
2007-07-10
Smith, Duane (Department: 1724)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S253000, C428S411100
Reexamination Certificate
active
11095365
ABSTRACT:
An aqueous acrylic emulsion polymer including, as copolymerized units, 70 to 99.5% by weight, based on dry polymer weight, monoethylenically unsaturated nonionic (meth)acrylic monomer and from 0.3 to 10% by weight, based on dry polymer weight, monoethylenically unsaturated acid monomer, wherein at least 40% by weight, based on dry polymer weight, of the emulsion polymer is formed by redox polymerization in the presence of 0.001 to 0.05 moles chain transfer agent per kg dry polymer weight is provided. An aqueous coating composition including the acrylic emulsion polymer, a method for improving the scrub resistance of a dry coating, a method for improving the adhesion of a dry coating, and a method for improving the adhesion of a dry coating to an alkyd substrate are provided.
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Rohm and Haas Company
Smith Duane
Stauss Karl
Wu Ives
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