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:
Sep. 26, 2000
Filed:
Aug. 21, 1998
Applicant:
Inventors:
Dirk A Stanssens, Houthalen, BE;
Johan F Jansen, Geleen, NL;
Assignee:
DSM N.V., Heerlen, NL;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; G03F / ; C09D / ;
U.S. Cl.
CPC ...
522 27 ; 522 28 ; 522 39 ; 522 50 ; 522 57 ; 522 63 ; 522 65 ; 522182 ; 522104 ; 522167 ; 522170 ; 522173 ; 522178 ; 522184 ; 522186 ; 522188 ; 522189 ; 4302801 ; 4302811 ; 4302851 ; 430269 ;
Abstract
The invention relates to a composition comprising polymerizable material and an anionic photocatalyst. The photocatalyst is a photolabile compound able to liberate a strong base having a pK.sub.a .gtoreq.12. The catalyst can be illustrated by the structural formula Z-A wherein Z is a photolabile group and A is a strong base, for example, a nitrogen containing compound such as, a secondary amine, a guanidine or amidine and Z is covalently bound to A.