Odor free polylactic acid modified aqueous emulsion paints...

Details Odor free polylactic acid modified aqueous emulsion paints... Odor free polylactic acid modified aqueous emulsion paints...

2006-05-23

2006-05-23

Wu, David W. (Department: 1713)

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...

C524S300000

Reexamination Certificate

active

07049357

ABSTRACT:
An aqueous ambient dry decorative or protective coating comprising a film forming matrix polymer of an aqueous emulsion polymer of aqueous copolymerized ethylenically unsaturated monomers modified with at least 3% by weight of a low molecular weight oligomer of copolymerized hydroxy alkanoic acid having 2 to 4 carbon atoms having a number average molecular weight between 300 and 10,000 to provide a film forming binder substantially free of volatile organic coalescing solvents. Preferred oligomers are homopolymers and copolymers of polymerized lactic acid or polymerized glycolic acid.

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patent: 5821327 (1998-10-01), Oota et al.
patent: 5880254 (1999-03-01), Ohara et al.

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