Waterborne anti-chipping coating composition for automobiles

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

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C524S515000, C524S522000, C524S523000, C524S525000

Reexamination Certificate

active

10479460

ABSTRACT:
A waterborne coating composition comprising fine polymer particles dispersed in an aqueous medium and an inorganic filler, wherein the fine polymer particles comprise (A) 50 to 90% by weight of synthetic rubber polymer particles containing 50 to 90% by weight of a repeating unit derived from a conjugated diolefin monomer and having a glass transition temperature of −20° C. or lower and (B) 10 to 50% by weight of acrylic polymer particles containing 50% by weight or more of a repeating unit derived from an acrylic ester and/or a methacrylic ester and having a glass transition temperature of 0° C. or lower.

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patent: 6451141 (2002-09-01), Krobb et al.
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Derwent Abstract No. 1992-308660 for DD 299472 A7 (Apr. 23, 1992).
Full English-language translation of DD 299 472 A7, 1992.

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