Urea-group- and/or urethane-group-containing amides as and in rheology control agents, their preparation and their use

US11453750B2 · kind B2 · utility

Assignee

• BYK-CHEMIE GMBH · DE

Inventors

• René Nagelsdiek · Hamminkeln, DE
• Sylvia Bühne · Duisburg, DE
• Silke Gaul · Wesel, DE
• Berthold Jacobs · Wesel, DE
• Verena Karwath · Wesel, DE
• Dominika Bernert · Wesel, DE
• Daniela Leutfeld · Wesel, DE

Key dates

• Filing date: Jan 28, 2018
• Grant date: Sep 27, 2022
• Expiry date: Feb 5, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D7/65
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to urea- and/or urethane-substituted amides of the general formula (I) The radicals R1, Z1, R2, and Z2 comprise a building block containing urea groups and/or containing urethane groups; the radicals R4, Z4, R5, and Z5 comprise a building block containing amide groups, and E is a carboxylic acid group or salt thereof. The invention also relates to rheology control agents which consist of or comprise the amides of the formula (I). A further subject of the invention is a method for producing the rheology control agents, and the use of the urea- and/or urethane-substituted amides, and also of the rheology control agents, as thickeners, especially in liquid compositions, and also the liquid compositions themselves.