US 2015/0087791 A1 · VINYL CARBOSILOXANE RESINS

Abstract

This invention is a vinylcarbosiloxane resin that is the hydrosilation reaction product of 1,3,5,7-tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane and a hydride-terminated linear polysiloxane, siloxane, or silane, having two terminal Si—H hydrogens reactive with vinyl groups in a hydrosilation reaction, in the presence of a platinum catalyst. Suitable hydride-terminated linear polysiloxanes, siloxances, and silanes include those having the structures: In another embodiment, the vinylcarbosiloxane resin can be reacted with one or more other hydrido-silanes and hydrido-polysiloxanes in the presence of a platinum catalyst to form a curable composition.

Claims7

Dependent claims

A vinylcarbosiloxane resin that is the hydrosilation reaction product of 1,3,5,7-tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane and a hydride-terminated linear polysiloxane, siloxane, or silane, having two terminal Si—H hydrogens reactive with vinyl groups in a hydrosilation reaction.

Dependencies are inferred from the claim text.

Facts

Application

14/562,872Filed 8 Dec 2014

Priority

6 Jun 2012

Published

26 Mar 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

C08G 77/20
Polysiloxanes: containing silicon bound to unsaturated aliphatic groups
C08G 77/38
Polysiloxanes: polysiloxanes modified by chemical after-treatment
C08G 77/50
In which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms: by carbon linkages
C08K 5/56
Use of organic ingredients: organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond

Vinyl carbosiloxane resins

Life of this patent

Vinyl carbosiloxane resins

Life of this patent

Abstract

Claims7