Production of metathesis products by high melting polymer segment interchange

US8530579B2 · 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: Sep 10, 2013
• Expiry date: Mar 5, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2312/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Two or more chemically distinguishable ethylenically unsaturated polymers, at least one having from 0.001 to 50 mole percent unsaturation and at least one other having an expected Tg or measured Tm value greater than 100° C. are cross-metathesized to form thermoplastic elastomers having improved performance properties.