Terminally unsaturated, oxetane-based macromonomers, and methods for the production thereof

US8883942B2 · kind B2 · utility

Assignee

• BYK-CHEMIE GMBH · DE

Inventors

• Albert Frank · Xanten, DE
• Wojciech Jaunky · Wesel, DE
• Jörg Issberner · Lügde, DE

Key dates

• Filing date: May 3, 2010
• Grant date: Nov 11, 2014
• Expiry date: May 17, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/18
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for preparing a macromonomer by cationic ring-opening polymerization of at least one hydroxyoxetane with a terminally ethylenically unsaturated starter molecule free of allyl groups in a molar ratio (hydroxyoxetane(s):starter molecule) of (100:1) to (1:1) in the presence of at least one suitable catalyst; macromononomers obtainable therefrom and use thereof.