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:
May. 11, 1993
Filed:
Nov. 18, 1991
Applicant:
Inventors:
Werner Rutsch, Fribourg, CH;
Rinaldo Husler, Wunnewil, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C07F / ; C07F / ; C07D / ;
U.S. Cl.
CPC ...
522 64 ; 546 14 ; 546 22 ; 549-6 ; 549218 ; 556405 ; 558178 ; 568 15 ;
Abstract
Silylated acylphosphine oxides of formula I ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 are defined in the specification, are highly suitable as photoinitiators for the photopolymerization of compounds which can be polymerized by means of free radicals, namely ethylenically unsaturated compounds.