Pigment preparations for inkjet printing

US6465567B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Michael Grobe · Ennigerloh, DE
• Peter-Roger Nyssen · Dormagen, DE
• Michael Krause · Ulm, DE
• Karina Kutschkau · Leverkusen, DE
• Dirk Pfutzenreuter · Leverkusen, DE

Key dates

• Filing date: May 15, 2000
• Grant date: Oct 15, 2002
• Expiry date: May 15, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/32
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to pigment preparation having(a) at least one organic pigment,(b) at least one optionally ionically modified phenol-styrene polyglycol ether, and(c) at least one surface-active agent that is(i) an oxalkylated acetylene glycol of formula (I)  wherein n is 0 to 14, m is 0 to 14, and m+n is 0 to 14, and/or(ii) compounds having the formulas (II), (III), and (IV)  wherein R is C6-C18-alkyl. R1 independently denotes H or C1-C4-alkyl, p is from 3 to 60, R2 is R or optionally C1-C18-alkyl-substituted phenyl, X is —SO3−, —SO2−, —PO3═, or —CO—(R3)—COO−; R3 is a divalent aliphatic or aromatic radical, and Kat is a cation.