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:
Jul. 14, 1992
Filed:
Jan. 09, 1990
Applicant:
Inventors:
Reinhold Schwalm, Wachenheim, DE;
Andreas Boettcher, Nussloch, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; C08F / ;
U.S. Cl.
CPC ...
526288 ; 430170 ; 430270 ; 430322 ; 430325 ; 522178 ; 522180 ; 522182 ; 522183 ; 522184 ; 526239 ; 526240 ; 526256 ; 526286 ; 526291 ; 5262923 ; 526293 ;
Abstract
Radiation-sensitive polymers suitable for use in positive- and negative-working recording elements contain not only acid-labile groups but also onium salt groups having nonnucleophilic counterions in one and the same molecule.