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. 01, 1981
Filed:
Jul. 30, 1980
Applicant:
Inventors:
Werner Kuesters, Ludwigshafen, DE;
Lucien Thil, Ludwigshafen, DE;
Assignee:
BASF Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568 43 ; 568315 ;
Abstract
Monoacetals of aromatic 1,2-diketones are manufactured by reacting the corresponding 1,2-diketones, in an organic solvent, with an acid ester (R.sup.1).sub.n X as alkylating agent and an alcoholate (R.sup.2 O).sub.m Me, where R.sup.1 and R.sup.2 are identical or different hydrocarbon radicals of 1 to 12 carbon atoms, which may or may not be substituted, n and m are integers from 1 to 3, X is a monobasic, dibasic or tribasic acid radical and Me is a metal of main groups 1 to 3 of the periodic table of the elements. The resulting diketone monoacetals are particularly suitable for use as photoinitiators in photopolymerizable compositions.