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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 5068062 B1

PDFFull Text
Date of Patent:
Nov. 26, 1991

Filed:

Apr. 05, 1989

Reversibly color-changeable materials

Applicant:
Inventors:

Hiroo Inata, Iwakuni, JP;

Shunichi Matsumura, Iwakuni, JP;

Seiji Itoh, Iwakuni, JP;

Masuhiro Okada, Iwakuni, JP;

Assignee:

Teijin Limited, Osaka, JP;

Attorney:

Sherman & Shalloway

Primary Examiner:

Josephine Barr

Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252518 ; 252500 ; 252512 ; 252514 ; 252520 ; 252511 ; 359241 ; 359265 ; 523457 ; 523458 ; 523459 ;
Abstract

An electrochromic resin composition comprising (A) 100 parts by weight of a network comprising a crosslinked polymer containing 4,4'-diaminodiphenylmethane units in a form in which the amino groups in the formula are quaternized, and (B) 5 to 150 parts by weight of an electrolytic material uniformly dispersed in the network (A). The crosslinked polymer containing the units with the amino groups therein being in the quaternized state is useful as an electrochromic or photochromic material.

Find Patent Forward Citations

Inata, Hiroo. (1991). Reversibly color-changeable materials (U.S. Patent No. 5068062). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5068062

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