Polymer having terminal structure including plurality of reactive silicon groups, method for manufacturing same, and use for same

Patent metadata

Field	Value
Publication number	US-9803052-B2
Application number	US-201615336320-A
Country	US
Kind code	B2
Filing date	Oct 27, 2016
Priority date	May 31, 2012
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

A polymer (A) having, at one terminal moiety thereof, a terminal structure having two or more carbon-carbon unsaturated bonds. A reactive-silicon-group-containing polymer (B) having, at one terminal moiety thereof, a terminal structure having two or more reactive silicon groups.

First claim

The invention claimed is:

1. A polymer (A) having, at one terminal moiety thereof, a terminal structure having two or more carbon-carbon unsaturated bonds,
wherein the terminal moiety has a structure represented by the following general formula (1):

wherein R1 and R3 are each independently a bivalent bonding group having 1 to 6 carbon atoms and an atom of the bonding group that is bonded to any carbon atom adjacent to the bonding group is any one of carbon, oxygen and nitrogen; R2 and R4 are each independently hydrogen, or a hydrocarbon group having 1 to 10 carbon atoms; and n is an integer of 1 to 10.

2. The polymer (A) according to claim 1 , wherein a hydroxyl group or hydroxyl groups contained are 0.3 or less in number on average per molecule of the polymer (A).

3. The polymer (A) according to claim 1 , having a main skeleton which is a polyoxyalkylene polymer.

4. A method for manufacturing the polymer (A) recited in claim 1 , comprising: causing an alkali metal salt to act onto a polymer having, at a terminal thereof, a hydroxyl group in an amount of 0.6 equivalent or more relative to the hydroxyl group amount in the polymer; causing the resultant to react with an epoxy compound having a carbon-carbon unsaturated bond; and further causing the resultant to react with a halogenated hydrocarbon compound having a carbon-carbon unsaturated bond.

5. The method for manufacturing the polymer (A) according to claim 4 , wherein the alkali metal salt is a sodium alkoxide, the epoxy compound, which has a carbon-carbon unsaturated bond, is allyl glycidyl ether or methallyl glycidyl ether, and the halogenated hydrocarbon compound, which has a carbon-carbon unsaturated bond, is allyl chloride or methallyl chloride.

6. A curing composition, comprising the polymer (A) recited in claim 1 .

Assignees

• Kaneka Corp

Inventors

• Harumashi Tatsuro
• Taniguchi Akio
• Odaka Hidetoshi
• Wakabayashi Katsuyu

Classifications

• C08G65/329

  with organic compounds · CPC title

• C08L71/02

  Polyalkylene oxides · CPC title

• C08L43/04

  Homopolymers or copolymers of monomers containing silicon · CPC title

• C09D171/02

  Polyalkylene oxides · CPC title

• C08G77/38

  Polysiloxanes modified by chemical after-treatment · CPC title