Pigment formulation

US4013481A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Heinz Molls · Leverkusen, DE
• Karlheinz Wolf · Leverkusen, DE
• Reinhold Hornle
• Gottfried Popp · Leverkusen, DE
• Konrad Nonn
• Jurgen Spille · Bensberg, DE

Key dates

• Filing date: Dec 4, 1972
• Grant date: Mar 22, 1977
• Expiry date: Dec 4, 1992

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/61
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Process for the manufacture of pigment preparations by comminution in the presence of surface-active agents which can be saponified under acid or alkaline conditions and which contain at least one group which confers solubility in a radical which is to be split off during the saponification.