Polarizing film-integrated transparent electrically conductive film
US4774141A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1987 |
| Grant date | Sep 27, 1988 |
| Priority date | — |
| Expiry date | Feb 12, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A polarizing film-integrated transparent electrically conductive film, wherein a polysulfone film as a support layer is laminated on at least one surface of a polyvinylalcohol polarizing film which has been dyed with a water-soluble disazo compound as a free acid represented by the general formula (1) ##STR1## wherein X represents nitro group or amino group, A represents the formula (a) or (b) ##STR2## (wherein R.sub.1 represents hydrogen atom, methoxy group, ethoxy group, methyl group or hydroxyl group, R.sub.2 represents hydrogen atom, methyl group, methoxy group, ethoxy group, acetylamino group or ureido group, R.sub.3 represents hydrogen atom, methoxy group or ethoxy group, and n is 0 or 1), and Y represents amino group, methylamino group, acetylamino group, N-methyl-N-acetylamino group, .beta.-hydroxyethylamino group, or a phenylamino or benzoyl amino group in which the phenyl nucleus may be substituted by one or two of nitro group, amino group, hydroxyl group, methyl group, sulfonic acid group and carboxyl group, or a copper complex compound thereof and furthermore a transparent electrically conductive film is laminated on either one of the surfaces of the laminated film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.