PHOTO-CURED AND STABILIZED COATINGS
Application 3286/CHENP/2005 published 2007-09-14, filed 2005-12-06
Photo-curable coating formulations which comprise a durable and/or red-shifted reactable hydroxyphenylbenzotriazole ultraviolet light absorber (UVA) are effectively photocured employing a combination of a-hydroxy ketone and bisacylphosphine oxide photoinitiators. The reactable UVA's are reacted into the coating upon curing. The combination of the photoinitiators bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide and 1-hydroxycyclohexylphenylketone is especially effective for this purpose.
Applicant
1)CIBA SPECIALTY CHEMICALS HOLDING INC
:KLYBECKSTRASSE 141 4057 BASEL SWITZERLAND Switzerland
Inventor
1)JOSEPH SUHADOLNIK 2)MERVIN GALE WOOD 3)RAMANATHAN RAVICHANDRAN 4)WALTER L RENZ 5)ANDREA R ROBERTS 6)NANCY NASE CLIFF 7)EUGENE VALENTINE SITZMANN 8)DAVID BRAMER
International Info
Classification: C08K 5/07
Publication Number: WO 2004/099302 A1
Application Date: 2004-04-26
Priority Information
60/468,184 U.S.A. 2003-05-06