TWO COMPONENT COATING COMPOSITIONS AND COATINGS PRODUCED THEREFROM

WIPO Patent Application WO2004007627

A3

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, amine, acetoacetoxy and secondary amine. 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, ketimine, melamine, or a combination thereof. The invention is also directed to coating produced from the coating composition.

PAQUET DONALD ALBERT JR (US)
BARSOTTI ROBERT JOHN (US)
LEWIN LAURA ANN (US)
DOUGLAS CARL BRENT (US)
GRADY MICHAEL CHARLES (US)

PCT/US2003/021743

June 03, 2004

July 11, 2003

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DU PONT (US)
PAQUET DONALD ALBERT JR (US)
BARSOTTI ROBERT JOHN (US)
LEWIN LAURA ANN (US)
DOUGLAS CARL BRENT (US)
GRADY MICHAEL CHARLES (US)

B05D7/14; B01J8/00; B05D7/24; C08F2/00; C08F8/00; C08F8/30; C08G18/62; C08G18/79; C08K5/00; C09D5/00; C09D7/12; C09D133/04; C09D133/14; C09D161/28; C09D163/00; C09D175/04; C09D183/04; E05B73/00; C08L79/00; (IPC1-7): C09D133/00

US20020012751A1	2002-01-31
US5539073A	1996-07-23
US20020058757A1	2002-05-16
US6015871A	2000-01-18
EP1342735A2	2003-09-10

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