Pigment preparations having a high solids content

US5804639A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Gert Schopwinkel · Neunkirchen, DE
• Kai Butje · Duisburg, DE
• Gunter Wieghaus · Krefeld, DE
• Richard Bathke · Duisburg, DE
• Torsten Groth · Reinbek, DE
• Winfried Joentgen · Neunburg vorm Wald, DE

Key dates

• Filing date: Oct 22, 1996
• Grant date: Sep 8, 1998
• Expiry date: Oct 22, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K23/22
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Pigment preparations having a solids content of greater than 40% comprise, as dispersing agents, polymers having recurring succinyl units, in particular polyaspartic acid.