Ureaurethanes for rheology control

US10407385B2 · kind B2 · utility

Assignee

• BYK-CHEMIE GMBH · DE

Inventors

• Marc Eberhardt · Wesel, DE
• René Nagelsdiek · Hamminkeln, DE
• Sylvia Bühne · Duisburg, DE
• Jürgen Omeis · Wulfen, DE
• Agnetha Schmitt · Gelsenkirchen, DE

Key dates

• Filing date: Jul 22, 2016
• Grant date: Sep 10, 2019
• Expiry date: Jul 22, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J20/291
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to ureaurethanes of the following formula (I) in which at least one of the R1 or R2 radicals is a mono- or polyunsaturated, branched or unbranched alkenyl or alkynyl radical having 12 to 24 carbon atoms, n is an integer ≥1, where the upper limit for n arises from the maximum number average molecular weight Mn of the ureaurethanes of the general formula (I), which is 65 000 g/mol, and which is determined by means of gel permeation chromatography to DIN 55672-2 using a polymethyl methacrylate standard, R3 is a xylylene radical or a hydrogenated xylylene radical and R4 is a tolylene radical or various other radicals. The invention also relates to ureaurethane compositions comprising the ureaurethanes of the invention and to the preparation of both. The invention further relates to the use of the ureaurethanes or ureaurethane compositions as rheology control agent and antisettling agent. The invention further provides liquid formulations from the group consisting of coating compositions, polymer formulations, pigment pastes, sealant formulations, cosmetics, ceramic formulations, drilling fluids, adhesive formulations, potting compounds, construction materi…