Acylation process

US10538597B2 · kind B2 · utility

Assignee

• RHODIA ACETOW GMBH · DE

Inventors

• Jana Lubkoll · Glückstadt, DE
• Armin Stein · Kenzingen, DE

Key dates

• Filing date: Oct 15, 2014
• Grant date: Jan 21, 2020
• Expiry date: Oct 15, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention concerns a process for the manufacture of an acylated polymer composition comprising amylose and/or amylopectin, comprising a pre-treatment step in the presence of an acid, a salt and a polycarboxylic acid, subsequent acylation and, preferably, a post-treatment step with an acid. The products obtained are useful as additives in inks, varnishes, lacquers, coatings, thickeners, adhesives or binders.