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:
Jan. 08, 1991
Filed:
Aug. 03, 1989
Applicant:
Inventor:
Hans Ruckert, Wiesbaden-Naurod, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430326 ; 430270 ; 430171 ; 430286 ; 430293 ;
Abstract
A positive-working radiation-sensitive composition is described, which comprises a binder which is insoluble in water and soluble or swellable in organic solvents and in aqueous-alkaline solutions, a compound which forms a strong acid upon irradiation, and a compound of the general formula ##STR1## wherein R denotes an alkyl group which may be substituted and