Reversibly color-changeable materials
US5068062A · kind A · utility
42Cited by
0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1989 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Apr 5, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/40
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.