Aminoalkyl-containing guar derivatives

US7777026B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Carsten Huttermann · Braunschweig, DE
• Meinolf Brackhagen · Walsrode, DE
• Jurgen Engelhardt · Bad Fallingbostel, DE

Key dates

• Filing date: Jun 5, 2006
• Grant date: Aug 17, 2010
• Expiry date: Jun 9, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08B37/0096
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A process for producing aminoalkyl-containing guar derivative is disclosed. The process entails a) dispersing a member selected from the group consisting of guar and guar derivative in a mixture of a water-miscible aprotic solvent and water and b) alkalizing the member with a base to obtain a mixture containing an alkalized member and c) etherifying the mixture with an amino-containing reagent to obtained an etherified mixture and d) optionally neutralizing the etherified mixture to obtain a material system containing a reaction product and e) optionally filtering the material system to obtain the reaction product and f) optionally washing the reaction product and g) optionally drying the reaction product referred to in f) and h) optionally grinding the reaction product. The product thus obtained is suitable for producing hair conditioners and flocculation aids.