Crosslinking of unsaturated polymers by the use of hydroxylamine-esters

US7358311B2 · kind B2 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Michael Roth · Herbstein, DE
• Dirk Simon · Mutterstadt, DE

Key dates

• Filing date: Sep 17, 2002
• Grant date: Apr 15, 2008
• Expiry date: Oct 12, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2323/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The instant invention relates to a process for crosslinking unsaturated polymer resins as e.g. unsaturated polyesters using hydroxyamine esters as radical source. Further aspects of the invention are a composition comprising unsaturated polymer resins as e.g. unsaturated polyester resins and a hydroxylamine ester and the use of hydroxylamine esters for crosslinking unsaturated polymers.