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Title:
LOW-CURE POWDER COATINGS, RELATED COATING METHOD AND COATED SUBSTRATES
Document Type and Number:
WIPO Patent Application WO2005033230
Kind Code:
A3
Abstract:
Low-cure powder coating compositions are disclosed, comprising at least one epoxy-­containing resin and/or at least one siloxane-containing resin, and at least one material having the structure formula (I) wherein R1 is an organic radical having 6 to 25 carbon atoms; each R2 is independently a multivalent hydrocarbon group having 1 to 20 carbon atoms; Y is formula (II) each R3 and R4 are independently alkyl or aryl groups having 1 to 8 carbon atoms; each Z is independently oxygen or nitrogen; R5 is absent when Z is oxygen and R5 is hydrogen, an alkyl or aryl group having 1 to 20 carbon atoms, or (Y)a -R2- when Z is nitrogen; a and b are integers; a is at least 1; b is 1 to 3; and (b) at least one epoxy-containing resin and/or at least one siloxane-containing resin. The material can optionally be reacted with an acidic hydrogen-containing compound. Some compositions are curable without using crosslinking agents or accelerators. Methods for coating a substrate using these compositions, the coated substrates, and additional catalysts useful for the same purpose are also disclosed.

Inventors:
DUFFY SHAWN P
CHASSER ANTHONY M
AMBROSE RONALD R
Application Number:
US2004031761W
Publication Date:
June 23, 2005
Filing Date:
September 28, 2004
Export Citation:
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Assignee:
PPG IND OHIO INC (US)
International Classes:
C07C275/26; C08F20/00; C08G18/28; C08G18/32; C08G18/75; C08G18/80; C08G59/62; C08G59/68; C09D5/03; C09D163/00; C09D163/02; C09D163/10; (IPC1-7): C09D163/00; C07C275/14; C08G18/28; C08G18/32; C08G59/68; C08L63/00; C09D5/03; C09D163/02
Domestic Patent References:
WO2003102044A22003-12-11
Foreign References:
US4324739A1982-04-13
US4562241A1985-12-31
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