Mono-functional branched organosiloxane compound and method for producing the same

Patent metadata

Field	Value
Publication number	US-9951090-B2
Application number	US-201615270380-A
Country	US
Kind code	B2
Filing date	Sep 20, 2016
Priority date	Oct 9, 2015
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

The present invention is a mono-functional branched organosiloxane compound that is liquid and shown by the following general formula (1)

M a-1 M R a-2 D b-1 D R b-2 T c-1 T R c-2 Q d-1   (1)

wherein M=R 1 3 SiO 0.5 , M R =R 1 2 R 2 SiO 0.5 , D=R 1 2 SiO, D R =R 2 R 1 SiO, T=R 1 SiO 1.5 , T R =R 2 SiO 1.5 , and Q=SiO 2 , where R 1 represents a group selected from an alkyl group having 1 to 30 carbon atoms, and so on, R 2 represents a hydrogen atom, and so on, a-1 represents an integer of 1 or more, b-1 and c-1 each represent an integer of 0 or more, and a-2, b-2, c-2, and d-1 each represent 0 or 1, provided that c-1, c-2, and d-1 are not simultaneously 0, a total of a-2, b-2, and c-2 is 1, and when b-1 is 0, a-1 is 2 or more and a total of c-1 and d-1 is 1 or more. There can be provided a novel mono-functional branched organosiloxane compound having a branched structure, and a method for producing the same.

First claim

The invention claimed is:

1. A mono-functional branched organosiloxane compound that is liquid and shown by the following general formula (1-6):

2. A method for producing a mono-functional branched organosiloxane compound of claim 1 , comprising reacting an organosiloxane containing one silanol group per molecule with an organic chlorosilane compound in the presence of a base, wherein
the organosiloxane containing one silanol group per molecule is obtained by a reaction of 1,1,1,3,5,5,5-heptamethyltrisiloxane with water in the presence of a catalyst, and
the organic chlorosilane compound is dimethylvinylchlorosilane.

Assignees

• Shinetsu Chemical Co

Inventors

• Akabane Emi
• Goto Tomoyuki

Classifications

• C07F7/0889 Primary

  Reactions not involving the Si atom of the Si-O-Si sequence · CPC title

• C07F7/0874

  Reactions involving a bond of the Si-O-Si linkage · CPC title

• C08G77/045

  containing less than 25 silicon atoms · CPC title

• C07F7/0838 Primary

  Compounds with one or more Si-O-Si sequences (compounds with a ring containing only alternating Si and O atoms, i.e. cyclosilanes C07F7/21) · CPC title

• C07F7/0872

  Preparation and treatment thereof · CPC title