Acylation process

US10239959B2 · kind B2 · utility

Assignee

• SOLVAY ACETOW GmbH · DE

Inventors

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

Key dates

• Filing date: Oct 15, 2014
• Grant date: Mar 26, 2019
• Expiry date: Jan 30, 2035

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 and a hydroxycarboxylic 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.