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:
Apr. 04, 1995
Filed:
May. 07, 1992
Applicant:
Inventors:
Karl-Friedrich Doessel, Wiesbaden, DE;
Ralph Dammel, Mainz-Bretzenheim, DE;
Juergen Lingnau, Mainz-Laubenheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430270 ; 430326 ;
Abstract
A positive radiation-sensitive mixture is disclosed comprising a compound which forms an acid under the action of high-energy radiation and an acid-cleavable compound, wherein the compound which forms an acid contains aromatically bound chlorine or bromine and has a pK.sub.a value of less than about 12 or is a derivative of a compound having such a pK.sub.a value. The mixture and the recording material produced therefrom have a relatively high-sensitivity and improved resolution and, in addition, exhibit no scumming after development.