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. 05, 1993
Filed:
Aug. 02, 1990
Applicant:
Inventors:
Friedrich Seitz, Friedelsheim, DE;
Erich Beck, Harthausen, DE;
Joachim Roser, Ludwigshafen, DE;
Guenther Schulz, Bad Duerkheim, DE;
Eleonore Bueschges, Mannheim, DE;
Thomas Zwez, Karlsruhe, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F / ; G03F / ; G03F / ; C08G / ;
U.S. Cl.
CPC ...
430284 ; 522 97 ; 526301 ; 526263 ; 528 68 ; 528 75 ; 528 73 ;
Abstract
A reaction product useful for preparing radiation-sensitive materials, in particular materials whose solubility in water or aqueous alkali increases on irradiation, contains urea and urethane groups and also carboxyl groups and is obtained by reaction of