Phthalocyanine dyes, inks containing the same and use thereof in ink jet printing
US6149722A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Feb 1, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/328
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Phthalocyanine compounds of Formula (1) have utility as colorants in inks for ink-jet printing, where Formula (1) represents: ##STR1## in which: M represents a metal or H; PA1 Pc represents a phthalocyanine nucleus; and PA1 R.sup.1 represents H or --(CH.sub.2).sub.n R.sup.3 ; R.sup.2 represents(CH.sub.2).sub.n R.sup.3 ; or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached represent a 5 or 6-membered ring; where: PA2 n is independently an integer from 1 to 30; and PA2 R.sup.3 is independently a group selected from hydroxy, sulpho, cyano, --SR.sup.4, --CO.sub.2 R.sup.5, --PO.sub.3 H.sub.2 and --NR.sup.6 R.sup.7 ; where: PA3 R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently represent H, C.sub.1-30 alkyl optionally substituted by one or more groups selected from hydroxy, mercapto, sulpho, carboxy, cyano and --PO.sub.3 H.sub.2 ; PA1 v is the valence of Pc divided by the valence of M; PA1 x is from 1.2 to 3.8; PA1 y is from 0.1 to 2.7; PA1 z is from 0.1 to 2.7; and PA1 x, y and z satisfy 2.ltoreq.x+y+z.ltoreq.4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.