Aqueous acrylic coating composition

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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C524S543000, C524S556000, C524S575000

Reexamination Certificate

active

07368499

ABSTRACT:
An aqueous coating composition comprising a dispersion in an aqueous medium of (i) an acrylic addition polymer, (ii) an acrylic addition polymer having an acid value lower than that of polymer (i), and (iii) a base. The composition may also comprise a cross-linker, such as a polyisocyanate or a melamine resin. Also disclosed are methods for making such aqueous coating compositions and aqueous coating compositions made by such methods.

REFERENCES:
patent: 4518724 (1985-05-01), Kuwajima et al.
patent: 5219900 (1993-06-01), Davies et al.
patent: 5869569 (1999-02-01), Arai et al.
patent: 6586521 (2003-07-01), Blum et al.
patent: 57164145 (1982-10-01), None
patent: 9809046 (1999-05-01), None

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