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
2003-07-11
2010-12-28
Cheung, William K (Department: 1796)
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...
C524S506000, C524S507000, C524S558000, C524S559000, C524S539000, C524S538000, C525S386000, C525S123000, C525S419000
Reexamination Certificate
active
07858692
ABSTRACT:
The present invention is directed to two component coating compositions that cure under ambient conditions and more particularly to those having low VOC (volatile organic content) that are suitable for use in automotive refinish and Original Equipment Manufacturing (OEM) applications. The coating composition includes crosslinkable and crosslinking components, wherein the crosslinkable component includes a low polydispersity, low molecular weight copolymer having on an average 2 to 25 functional groups, such as hydroxyl, carboxyl, acetoacetoxy, primary and secondary amine, and epoxy. The copolymer is polymerized from a monomer mixture that includes one or more non-functional acrylate monomers and one or more functional methacrylate monomers provided with the functional groups. The crosslinking component includes polyisocyanate, polyamine, ketimine, melamine, epoxy, polyacid or a combination thereof. The invention is also directed to coating produced from the coating composition.
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Barsotti Robert John
Douglas Carl Brent
Grady Michael Charles
Lewin Laura Ann
Paquet, Jr. Donald Albert
Cheung William K
Deshmukh Sudhir G.
E.I. du Pont de Nemours and Company
Lamming John
Xu Gann G.
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