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:
Feb. 09, 1982
Filed:
Jul. 09, 1980
Applicant:
Inventors:
Maryse Gazard, Paris, FR;
Armand Eranian, Paris, FR;
Francoise Barre, Paris, FR;
Claude Duchesne, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430296 ; 20415916 ; 427 431 ; 427 44 ; 427 93 ; 427 96 ; 430311 ; 430312 ; 430315 ; 430910 ; 430942 ; 526256 ;
Abstract
A polymerized resin capable, upon electronic irradiation, of undergoing a cross-linking completing the polymerization and rendering it insoluble in certain solvents. Such a negative resin is ten times more sensitive to electrons than the best known resin. It is obtained by copolymerization of an epithiopropylmethacrylate: ##STR1## and of a vinyl monomer such as methyl methacrylate.