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:
Dec. 11, 1990
Filed:
May. 22, 1989
Applicant:
Inventors:
Joachim Gersdorf, Wiesbaden, DE;
Hans-Jerg Kleiner, Kronberg, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F / ; G03C / ;
U.S. Cl.
CPC ...
430277 ; 430278 ; 430279 ; 430275 ; 430273 ; 430271 ; 430281 ; 430288 ; 522115 ; 522141 ; 522142 ; 522171 ; 525340 ; 526275 ; 558 86 ; 558161 ; 558177 ;
Abstract
Esters of trihydric or tetrahydric alcohols with alkenylphosphonic or -phosphinic acids, which can be polymerized by means of actinic light, are disclosed. They are combined with polymeric binders, in particular water-soluble polymers, and free-radical-forming photoinitiators to form photopolymerizable mixtures which are suitable for the preparation of photoresists and the production of printing plates. The mixtures show reduced temperature sensitivity and have long shelf lives.