ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND ELECTROCHROMIC ELEMENT

Title:

ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND ELECTROCHROMIC ELEMENT

Document Type and Number:

Japanese Patent JP2017206459

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide an electrochromic compound which enables stable operation and provides good yellow color development.SOLUTION: The electrochromic compound is represented by the following formula. Preferably, at least one of Rand Ris a polymerizable functional group. (Rto Rand Rto Rare each independently H, a halogen atom, a monovalent organic group, or a polymerizable functional group, provided that the monovalent organic group and the polymerizable functional group may be further substituted with a substituent; and R, R, Rand Rare each independently H, an alkyl group, or an aryl group.)SELECTED DRAWING: None

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Inventors:

YAMAMOTO SATOSHI
KOSAKA TOSHIYA
SHINODA MASAHITO
GOTO DAISUKE

Application Number:

JP2016099914A

Publication Date:

November 24, 2017

Filing Date:

May 18, 2016

Export Citation:

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Assignee:

RICOH CO LTD

International Classes:

C07D219/02; C09K9/02; G02F1/15

Attorney, Agent or Firm:

Koichi Hirota

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