Color correction material, film-forming composition, and optical filter
US8206619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2009 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | May 13, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/56
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A color correction material contains at least one type of cyanine compound composed of a cyanine cation represented by general formula (I) below (wherein the symbols are as defined in the description) and a q-valent anion represented by pAnq− (wherein the symbols are as defined in the description), and at least one type of layered clay mineral; or a color correction material containing a clay mineral composite obtained by intercalating a cyanine cation represented by general formula (I) below, or preferably the cyanine cation and an organic cation, into a layered clay mineral. Also described is a film-forming composition containing the color correction material and an optical filter having a layer composed of the film-forming composition.Ring A represents a benzene ring or a naphthalene ring; X represents CR3R4, NR5, an oxygen atom, a sulfur atom, or a selenium atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.