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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.:

US 5399664 B1

PDFFull Text
Date of Patent:
Mar. 21, 1995

Filed:

Nov. 10, 1993

Second order nonlinear optical polyimide polymer with high temperature

Applicant:
Inventors:

Zhonghua Peng, Chicago, IL (US);

Luping Yu, Chicago, IL (US);

Assignee:

Arch Development Corporation, Chicago, IL (US);

Attorney:

Arnold, White & Durkee

Primary Examiner:

John Kight, III

Assistant Examiner:

P Hampton-Hightower

Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528353 ; 528125 ; 528128 ; 528172 ; 528173 ; 528176 ; 528220 ; 528229 ; 528350 ; 522162 ; 522164 ; 526258 ; 526265 ;
Abstract

The invention relates generally to polymers exhibiting second order nonlinear optical properties, and characterized by high thermal stability. Disclosed are polymers prepared by a polycondensation reaction between an aromatic dianhydride and a compound selected from the group consisting of a di(alkylamino)amine and an aromatic diamine. Most preferred are polymers that are the products of a polycondensation reaction between 1,2,4,5-benzenetetracarboxylic dianhydride and nitro(N,N-diethylamino)stilbene, wherein the polymer is imidized by further heat treatment.

Find Patent Forward Citations

Peng, Zhonghua. (1995). Second order nonlinear optical polyimide polymer with high temperature (U.S. Patent No. 5399664). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5399664

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