Method for production of radically post-cured polymers by addition of diallyl phthalates

US6825242B2 · kind B2 · utility

Assignee

• Cognis Deutschland GmbH & Co. KG · DE

Inventors

• Horst Sulzbach · Goldkronach, DE
• Ralf Bemmann · Neuss, DE
• Rainer Hoefer · Goldkronach, DE
• Michael Skwiercz · Langenfeld, DE

Key dates

• Filing date: Oct 30, 2002
• Grant date: Nov 30, 2004
• Expiry date: Jan 17, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/6725
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Radically post-crosslinked polymers are made by a process comprising the steps of: (1) forming a polyurethane (at) by reacting a compound (a) with an aliphatic and/or an aromatic isocyanate and a compound (c) wherein compound (a) is the product of the reaction of an epoxidized fatty acid ester and/or an epoxidized triglyceride with acrylic acid and/or methacrylic acid and wherein compound (c) is a diallyl phthalate; (2) forming a crosslinked polyurethane by reacting the polyurethane (a*) with a radical initiator (b). The polymers are useful as components in composites comprised of natural and/or synthetic fibers.