Addition compounds and process for their preparation

US4631330A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Erwin Dietz · Kelkheim, DE
• Albert Munkel · Liederbach, DE
• Otmar Hafner · Königstein, DE
• Wolfgang Rieper · Frankfurt am Main, DE
• Adolf Kroh · Bad Camberg, DE

Key dates

• Filing date: Dec 16, 1985
• Grant date: Dec 23, 1986
• Expiry date: Dec 16, 2005

Classification

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

Abstract

Addition products formed from polymeric diphenylmethane 4,4'-diisocyanates, amines, monoactive and diactive polymers are suitable for use as dispersants for solids in organic media.