POWDER COATING COMPOSITION HAVING IMPROVED CRACK RESISTANCE AND ACID RESISTANCE

Japanese Patent JP2007332381

A

To develop a thermosetting powder coating composition including a functional copolymer which gives excellent crack resistance and acid resistance and has a low VOC level.

The thermosetting composition includes a co-reactable solid, a film forming material having a functional group, a crosslinking agent having at least two functional groups that are reactive with the functional group in the film forming material. The crosslinking agent includes a copolymer having at least 30 mol% of alternating structural units of a residue from a donor monomer and a residue from one or more acrylic acceptor monomers. The thermosetting composition may coat a substrate by coalescing the composition to form a continuous film and curing the composition.

COPYRIGHT: (C)2008,JPO&INPIT

RECHENBERG KAREN S
COCA SIMION
BARKAC KAREN A
O'DWYER JAMES B
BOWSER LINDA J

JP2007177830A

December 27, 2007

July 05, 2007

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PPG IND OHIO INC

B05D7/24; C08L101/02; B05D3/02; B05D7/00; B32B27/30; C08F8/00; C08F210/00; C08F210/10; C08F210/14; C08F220/10; C08F290/04; C08G18/62; C08G18/79; C08G18/80; C08G81/00; C08K5/092; C08L23/18; C08L23/20; C08L23/22; C08L33/00; C08L33/14; C08L63/00; C08L101/00; C09D5/03; C09D7/12; C09D109/00; C09D109/02; C09D123/18; C09D123/22; C09D133/00; C09D133/02; C09D133/04; C09D133/06; C09D133/08; C09D133/14; C09D133/24; C09D157/04; C09D163/00; C09D167/00; C09D175/04; C09D201/00; B05D1/00; B05D3/06; C08L33/06

Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita

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