Preparation of lakes having improved performance characteristics
US4664715A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1985 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Sep 26, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/002
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Improved lakes based on basic dyes and heteropolyacids (PM, PTM, SM, PSTM and STM) are prepared by a process in which the lakes are heated to 50.degree.-100.degree. C. at pH 2-5 in the presence of (1) primary, secondary or tertiary aliphatic amines, (2) alkylamino-C.sub.2 -C.sub.8 -alkanoic acids, (3) diaryl- or triarylamines, (4) acidic or neutral phosphates based on fatty alcohols, their ethylene oxide or propylene oxide/ethylene oxide adducts, polypropylene glycol, polyethylene glycol, or propylene oxide/ethylene oxide block copolymers, (5) sulfuric acid half esters of fatty alcohols, of their ethylene oxide adducts or alkylphenol/ethylene oxide adducts, (6) C.sub.8 -C.sub.20 -alkanoic acids and alkenoic acids, alkylbenzenesulfonic acids, alkylnaphthalenesulfonic acids or dialkylsulfimides, (7) alkylphenol/ethylene oxide adducts, alkanol/ethylene oxide adducts or alkylamine/ethylene oxide adducts, (8) propylene glycols or propylene oxide/ethylene oxide block copolymers of alkanediols or -polyols or (9) naphthols or alkylphenols. The pigments obtained possess improved tinctorial properties and performance characteristics and are readily dispersible in printing inks. The prints ex…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.