Organopolysiloxanes containing an unsaturated group

US9493615B2 · kind B2 · utility

Assignee

• Dow Corning Corporation · US

Inventors

• Michael Backer · Mainz, DE
• Francois De Buyl · Brussels, BE
• Damien Deheunynck · Braine-l'Alleud, BE
• Valerie Smits · Binche, BE

Key dates

• Filing date: Dec 22, 2010
• Grant date: Nov 15, 2016
• Expiry date: Apr 6, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L23/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention provides a composition comprising a polyolefin and a polyorganosiloxane in which at least 50 mole % of the siloxane units are D units as herein defined and which contains at least one unsaturated group, characterized in that the unsaturated group is group of the formula —X—CH═CH—R″ (I) or —X—C≡C—R″ (II), in which X represents a divalent organic linkage having an electron withdrawing effect with respect to the —CH═CH— or —C≡C— bond and/or containing an aromatic ring or a further olefinic double bond or acetylenic unsaturation, the aromatic ring or the further olefinic double bond or acetylenic unsaturation being conjugated with the olefinic unsaturation of —X—CH═CH—R″ or with the acetylenic unsaturation of —X—C≡C—R″ and R″ represents hydrogen or a group having an electron withdrawing effect or any other activation effect with respect to the —CH═CH— or —C≡C— bond.