Substituted phthalocyanides with sulfonyl substituted with amino or carboxyl groups
US5792860A · kind A · utility
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2References
17Claims
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Inventors
Key dates
| Filing date | Sep 25, 1996 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Sep 25, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/0429
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Phthalocyanines of formula (I) are described, wherein M is a metal atom, metal compound or silicon or a compound of silicon or is 2H; R.sub.1 -R.sub.25 may be the same or different, provided that at least one of R.sub.1 -R.sub.25 has the Formula (II), wherein Y groups are independently H, C.sub.1-3 alkyl, halogen or CN; k=0 or 1; l=1-10; m=0 or 1; n=1-10; p=1-10; q=1-20; r=0 or 1; X may be H, Me, etc . . . Compounds of the above formulae are useful in a broad range of applications, including electrooptical devices, and for use in optical recording media. ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.