Urea group containing anti-sagging rheology control agents

US11702385B2 · kind B2 · utility

Assignee

• BYK-CHEMIE GMBH · DE

Inventors

• Christiane Knappke-Bongartz · Wesel, DE
• René Nagelsdiek · Hamminkeln, DE
• Sylvia Bühne · Duisburg, DE
• Agnetha Klein · Wesel, DE
• Berthold Jacobs · Wesel, DE

Key dates

• Filing date: Dec 20, 2018
• Grant date: Jul 18, 2023
• Expiry date: Jan 19, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D175/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a urea group containing product comprising one or more species of formula (I) R1—X—(C═O)—[NH—R2—NH—(C═O)—NH—R3—NH—(C═O)]n—NH—R2—NH—(C═O)—X—R1 (I), 5 wherein R1 is independently selected from organic groups having (4) to (200) carbon atoms, X is O or NR4, wherein R4 is a hydrogen atom or an aliphatic or aromatic group having (1) to (30) carbon atoms, R2 is independently selected from hydrocarbyl groups having (4) to (40) carbon atoms, R3 is independently selected from hydrocarbyl groups having (2) to (40) carbon atoms, and wherein on average (76) to (100) mol % of all R3 groups contained in the one or more species of formula (I) are hydrocarbyl groups having (2) or (3) carbon atoms, and n is an integer of (2) to (150). The invention further relates to a method of manufacturing such urea group containing products, liquid compositions containing the same and the use of such liquid compositions as rheology control additives. Furthermore, the invention relates to a process for rheology adjustment adding such liquid composition to semi-finished or final products. The invention also relates to an article coated with the liquid composition.