Hydrophobic block—random block copolymer emulsion polymer stabilizers

US11396573B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• John David CAMPBELL · Racine, US
• Sean Raymond GEORGE · Southgate, US
• Gary A. Deeter · Livonia, US
• Bernd Reck · Arnstadt, DE
• Michael F. Cunningham · Georgetown, CA
• Connor SANDERS · Peterborough, CA

Key dates

• Filing date: Nov 28, 2018
• Grant date: Jul 26, 2022
• Expiry date: Nov 28, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2438/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A copolymer includes a hydrophobic head segment and a random copolymer tail segment comprising hydrophobic blocks and ionizable blocks. Emulsion polymerization systems incorporate the copolymer as a surfactant.