Raft agent, polymerization method, polymer, rubber mixture, and use thereof

US10442877B2 · kind B2 · utility

Assignee

• Continental Reifen Deutschland GmbH · DE

Inventors

• Katharina Herzog · Harsum, DE
• Lena Mueller · Alsfeld, DE
• Carla Recker · Hannover, DE
• Noa Pruss · Frankfurt, DE
• Phillipp Vana · Bad Gandersheim, DE
• Cathrin Sonja Conrad · Eschborn, DE

Key dates

• Filing date: Nov 13, 2017
• Grant date: Oct 15, 2019
• Expiry date: Jan 18, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2810/40
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed are RAFT agents, a method of polymerizing alkenes, dienes, vinyl compounds, and/or vinylidene compounds using at least one RAFT agent, polymers prepared by the methods, sulfur-crosslinkable rubber mixtures prepared by the methods, and motor vehicle tires, cords, belts, or hoses incorporating the sulfur-crosslinkable rubber mixtures. In one embodiment, the RAFT agent has the formula Z—C(═S)—S—R—S—P or P—S—Z—C(═S)—S—R—S—P, wherein P is a protecting group, and Z and R are typical RAFT Z and R groups.