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:
Aug. 17, 2004
Filed:
Oct. 03, 2002
Applicant:
Inventors:
Walid Al-Akhdar, Danbury, CT (US);
David Bramer, Putnam Valley, NY (US);
Eugene Valentine Sitzmann, Jr., Hartsdale, NY (US);
Donald A. Wostratzky, West Chicago, IL (US);
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/50 ; C08K 3/20 ; G03F 7/028 ;
U.S. Cl.
CPC ...
C08F 2/50 ; C08K 3/20 ; G03F 7/028 ;
Abstract
The present invention relates to a novel photoinitiator system comprising one or more acylphosphine oxide photoinitiators and one or more lightfast red, blue or violet organic pigments. Low yellow color formation results upon curing ethylenically unsaturated compounds with the new photoinitiator system. Particular applications include clear and white coatings, screen inks, gel coats, powder coatings, composites, adhesives and lenses.