The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2007
Filed:
May. 04, 2004
Joseph Suhadolnik, Yorktown Heights, NY (US);
Mervin Wood, Mobile, AL (US);
Ramanathan Ravichandran, Suffern, NY (US);
Walter Renz, Brookfield, CT (US);
Andrea Roberts, Wingdale, NY (US);
Nancy Cliff, Ringwood, NJ (US);
Eugene Sitzman, Hartsdale, NY (US);
David Bramer, Putnam Valley, NY (US);
Joseph Suhadolnik, Yorktown Heights, NY (US);
Mervin Wood, Mobile, AL (US);
Ramanathan Ravichandran, Suffern, NY (US);
Walter Renz, Brookfield, CT (US);
Andrea Roberts, Wingdale, NY (US);
Nancy Cliff, Ringwood, NJ (US);
Eugene Sitzman, Hartsdale, NY (US);
David Bramer, Putnam Valley, NY (US);
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
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 α-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.