Polar-modified rice husk wax

US10676618B2 · kind B2 · utility

Assignee

• CLARIANT INTERNATIONAL LTD · CH

Inventors

• Manuel BROEHMER · Gröbenzell, DE
• Halil Can Aran · Munich, DE
• Erik HAUCK · Gersthofen, DE
• Gerd Hohner · Gersthofen, DE
• Stefanie GOERES · Worms, DE
• Rosemarie WEBER · Edenbergen, DE
• Rainer Fell · Marktoberdorf, DE

Key dates

• Filing date: Jul 14, 2016
• Grant date: Jun 9, 2020
• Expiry date: Aug 11, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09F1/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention provides polar-modified rice husk waxes obtainable by free-radical grafting of unmodified rice husk waxes with graft comonomers selected from the group of the α,β-unsaturated mono- or polybasic carboxylic acids or derivatives thereof. The invention further provides derivatization products prepared by chemical conversion of the polar-modified rice husk waxes of the invention. The invention further provides processes for producing the products of the invention and for the use thereof.