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:
Jun. 08, 1993
Filed:
Sep. 17, 1991
Applicant:
Inventors:
Jens Nordmann, Neunkirchen, DE;
Heinz Hacker, Nuernberg, DE;
Assignees:
Siemens Aktiengesellschaft, Berlin, DE;
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
528 96 ; 528 98 ; 528 99 ; 528100 ; 528101 ; 528361 ; 549549 ; 549551 ; 549557 ; 549556 ; 549560 ;
Abstract
The invention provides epoxy resins having the following structure: ##STR1## The cross-linked epoxy resins have non-linear optical properties. The group 'Z' constitutes a nonlinear optical chromophone having stilbene, azo, azomethine or propargyl moieties as linking units.