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. 22, 1987
Filed:
Jun. 17, 1986
Applicant:
Inventors:
Ulrich Geissler, Frankfurt am Main, DE;
Heide Lampas, Hochheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430256 ; 430312 ; 430327 ; 430330 ; 430394 ; 430319 ; 430292 ;
Abstract
A photopolymerizable composition is disclosed which comprises: (a) a free-radically polymerizable compound, (b) a polymeric binder, (c) a photopolymerization initiator, (d) a compound which is thermally crosslinkable with the polymeric binder, with a polymerization product of (a) or with itself, and (e) a pigment. The disclosed composition is used for applying markings to printed circuits and preferably is applied to the solder-resist layer using a dry-resist process, is exposed and then developed, either separately or together with the solder-resist layer.