Pour point depressant

US12054584B2 · kind B2 · utility

Assignee

• BYK-CHEMIE GMBH · DE

Inventors

• Andreas Okkel · Wesel, DE
• Jan Von Haaren · Alpen, DE
• Irina Giebelhaus · Cologne, DE
• Jörg Bömer · Wesel, DE
• Markus Lorenz · Iffezheim, DE
• Peter Walter Stannek · Oberhausen, DE
• Stacy Scranton · Austin, US
• Jennifer Heitzer · Wesel, DE

Key dates

• Filing date: Jul 6, 2020
• Grant date: Aug 6, 2024
• Expiry date: Jul 6, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2030/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a polymer or oligomer comprising a) An oligomeric or polymeric core comprising carbon atoms and at least one of oxygen atoms and nitrogen atoms, and b) at least three hydrocarbyl terminal and/or pending groups having 12 to 100 carbon atoms, wherein the hydrocarbyl groups are linked to the core via c) a linking moiety comprising i) a urethane group and ii) a group selected from urethane group, urea group, and biuret group.