Five-membered cyclocarbonate polysiloxane compound and process for preparation of same

Patent metadata

Field	Value
Publication number	US-8975420-B2
Application number	US-201013503936-A
Country	US
Kind code	B2
Filing date	Oct 7, 2010
Priority date	Nov 25, 2009
Publication date	Mar 10, 2015
Grant date	Mar 10, 2015

Abstract

A 5-membered cyclic carbonate polysiloxane compound is represented by the below-described formula (1), and is produced by a process that reacts an epoxy-modified polysiloxane compound with carbon dioxide.

wherein A means

in which R 1 means an alkylene group which has from 1 to 12 carbon atoms and may be linked via an element of O, S or N and/or —(C 2 H 4 O) b —, R 2 means a direct bond or an alkylene group having from 2 to 20 carbon atoms, R 2 may be linked to an alicyclic group or aromatic group, b stands for a number of from 1 to 300, and a stands for a number of from 1 to 300.

First claim

The invention claimed is:

1. A 5-membered cyclic carbonate polysiloxane compound represented by following formula (1):

wherein A is

in which R 1 is an alkylene group that has from 1 to 12 carbon atoms and may be linked to R 2 via —(C 2 H 4 O) b — or one element selected from the group consisting of O, S, N, a combination of O and —(C 2 H 4 O) b —, a combination of S and —(C 2 H 4 O) b —, and a combination of N and —(C 2 H 4 O) b —,

R 2 is a direct bond or an alkylene group having from 2 to 20 carbon atoms, R 2 may be linked to an alicyclic group or aromatic group, wherein when R 2 is the direct bond, a carbon in the alkylene group of R 1 or a carbon in the —(C 2 H 4 O) b — group is bonded directly to Si in the formula (1) bound to R 2 ,
b stands for a number of from 1 to 300, and
a stands for a number of from 1 to 300.

2. A process for producing the 5-membered cyclic carbonate polysiloxane compound according to claim 1 , which comprises reacting an epoxy-modified polysiloxane compound represented by following formula (2) with carbon dioxide:

in which R 1 is an alkylene group that has from 1 to 12 carbon atoms and may be linked to R 2 via —(C 2 H 4 O) b — or one element selected from the group consisting of O, S, N, a combination of O and —(C 2 H 4 O) b —, a combination of S and —(C 2 H 4 O) b —, and a combination of N and —(C 2 H 4 O) b —,
R 2 is a direct bond or an alkylene group having from 2 to 20 carbon atoms, R 2 may be linked to an alicyclic group or aromatic group, wherein when R 2 is the direct bond, a carbon in the alkylene group of R 1 or a carbon in the —(C 2 H 4 O) b — group is bonded directly to Si in the formula (2) bound to R 2 ,
b stands for a number of from 1 to 300, and
a stands for a number of from 1 to 300.

3. The 5-membered cyclic carbonate polysiloxane compound according to claim 1 ,
wherein R 1 may be linked to R 2 via at least one group selected from the group consisting of —(C 2 H 4 O) b — and O,
R 2 is not linked to an alicyclic group or aromatic group, and
a in the formula (1) stands for a number from 1 to 9.2.

4. The 5-membered cyclic carbonate polysiloxane compound according to claim 1 ,
wherein R 1 may be linked to R 2 via at least one group selected from the group consisting of —(C 2 H 4 O) b — and O,
R 2 is not linked to an alicyclic group or aromatic group, and
a in the formula (1) stands for a number from 8.2 to 9.2.

5. The process according to claim 2 ,
wherein R 1 may be linked to R 2 via at least one group selected from the group consisting of —(C 2 H 4 O) b — and O,
R 2 is not linked to an alicyclic group or aromatic group, and
a in the formula (1) stands for a number from 1 to 9.2.

6. The process according to claim 2 ,
wherein R 1 may be linked to R 2 via at least one group selected from the group consisting of —(C 2 H 4 O) b — and O,
R 2 is not linked to an alicyclic group or aromatic group, and
a in the formula (1) stands for a number from 8.2 to 9.2.

7. The 5-membered cyclic carbonate polysiloxane compound according to claim 1 ,
wherein R 1 may be linked to R 2 via at least one group selected from the group consisting of O, S, N, —(C 2 H 4 O) b —, and the combination of O and —C 2 H 4 O) b —.

8. The process for producing the 5-membered cyclic carbonate polysiloxane compound according to claim 2 ,
wherein R 1 may be linked to R 2 via at least one group selected from the group consisting of O, S, N, —(C 2 H 4 O) b —, and the combination of O and —C 2 H 4 O) b —.

Assignees

• Hanada Kazuyuki
• Kimura Kazuya
• Takahashi Kenichi
• Kawakami Osamu
• Uruno Manabu
• Dainichiseika Color Chem
• Ukima Colour & Chem Mfg

Inventors

• Hanada Kazuyuki
• Kimura Kazuya
• Takahashi Kenichi
• Kawakami Osamu
• Uruno Manabu

Classifications

• C09D183/10

  Block or graft copolymers containing polysiloxane sequences (obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane C09D151/08, C09D153/00) · CPC title

• C08G77/14

  containing silicon bound to oxygen-containing groups · CPC title

• C08G77/458 Primary

  containing polyurethane sequences · CPC title

• C07F7/0838

  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

• C08G77/38 Primary

  Polysiloxanes modified by chemical after-treatment · CPC title