Production of metathesis products by amorphous polymer segment interchange

US8048961B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Daniel J. Arriola · Midland, US
• Brian A. Jazdzewski · Midland, US
• Francis J. Timmers · Midland, US
• Paul C. Vosejpka · Midland, US
• Nicole L. Wagner · Midland, US
• Brian G. Landes · Midland, US
• Guenter A. Jueptner · Hammah, DE
• David H. Bank · Midland, US
• Timothy T. Wenzel · Charleston, US

Key dates

• Filing date: Aug 23, 2007
• Grant date: Nov 1, 2011
• Expiry date: Sep 17, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L53/005
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A cross-metathesized product mixture is prepared by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more chemically distinguishable ethylenically unsaturated polymers, at least one of said ethylenically unsaturated polymers (first polymer) having from 0.001 to 50 mole percent unsaturation and at least one other of said ethylenically unsaturated polymers (second polymer) being an amorphous polymer having a Tg less than 0° C. and having from 0.001 to 5 mole percent unsaturation.