Title:
NOVEL POLYMER OF 3,4-SUBSTITUTED PYRROLE COMPOUND AND PROCESS FOR ITS PREPARATION
Document Type and Number:
WIPO Patent Application WO/1987/000843
Kind Code:
A1
Abstract:
Polymers of a 3,4-substituted pyrrole compound substituted by an electron-attractive group having a Hammett's substituent constant (sigmap) of 0.30 to 0.80 in at least one of the 3- and 4-positions are disclosed. The polymers are stable in the air in a dope-free state and shows distinct electrochromism. Some of them are soluble in an alkaline aqueous solvent. Therefore, they are useful as electrochromic elements, etc.
Inventors:
SHIMIZU TAKEO (JP)
KANEKO TAKEHIRA (JP)
INOUE TOMOYUKI (JP)
TAKAHASHI HIROSHI (JP)
KANEKO TAKEHIRA (JP)
INOUE TOMOYUKI (JP)
TAKAHASHI HIROSHI (JP)
Application Number:
PCT/JP1986/000399
Publication Date:
February 12, 1987
Filing Date:
August 04, 1986
Export Citation:
Assignee:
NIPPON SODA CO (JP)
International Classes:
C08G61/12; C09K9/02; G02F1/15; H01M4/60; (IPC1-7): C08G61/12
Foreign References:
| JPS612728A | 1986-01-08 | |||
| JPS5941324A | 1984-03-07 |
Other References:
See also references of EP 0231394A4
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