Polymerizable composition, and cured article

Patent metadata

Field	Value
Publication number	US-9376603-B2
Application number	US-201314433774-A
Country	US
Kind code	B2
Filing date	Oct 16, 2013
Priority date	Oct 18, 2012
Publication date	Jun 28, 2016
Grant date	Jun 28, 2016

Abstract

According to the present invention, a polymerizable composition having excellent storage stability can be provided by adding an acid that serves as a stabilizing agent and a free-radical polymerization inhibitor to a polymerizable composition that contains a polythiol compound and an enic compound having a phenylthio backbone as monomer components. In the present invention, an embodiment in which the acid is at least one compound having a protonic-acid-type functional group which is selected from phosphoric acid, phosphonic acid, phosphinic acid, sulfonic acid, sulfoneimide and carboxylic acid is preferred.

First claim

The invention claimed is:

1. A polymerizable composition, which comprises i) a polythiol compound and ii) an enic compound having a phenylthio backbone as monomer components, and which further comprises iii) an acid that serves as a stabilizing agent and iv) a free-radical polymerization inhibitor.

2. The polymerizable composition according to claim 1 , wherein the enic compound having a phenylthio backbone is a compound represented by the formula below:

wherein X represents any chemical structure; Z represents a (meth)acryloyl group, a vinyl group or an allyl group; and a benzene ring site may have a substituent.

3. The polymerizable composition according to claim 1 , wherein the acid is at least one compound having a protonic-acid-type functional group which is selected from phosphoric acid, phosphonic acid, phosphinic acid, sulfonic acid, sulfonimide and carboxylic acid.

4. The polymerizable composition according to claim 1 , wherein the acid content is 0.01 to 10 parts by mass relative to 100 parts by mass of the monomer components.

5. The polymerizable composition according to claim 1 , wherein the free-radical polymerization inhibitor is at least one compound selected from the group consisting of a nitroso compound, a nitrone compound and a nitroxide compound.

6. The polymerizable composition according to claim 5 , wherein the free-radical polymerization inhibitor is an N-nitrosophenylhydroxylamine salt derivative.

7. The polymerizable composition according to claim 6 , wherein the content of the N-nitrosophenylhydroxylamine salt derivative is 0.001 to 1 parts by mass relative to 100 parts by mass of the monomer components.

8. A cured product obtained by polymerizing the polymerizable composition according to claim 1 .

9. An adhesive comprising the polymerizable composition according to claim 1 .

Assignees

• Mitsubishi Gas Chemical Co

Inventors

• Okazaki Hitoshi
• NAMIKI Kousuke
• Takeuchi Motoharu

Classifications

• C08K5/092

  Polycarboxylic acids · CPC title

• C09J181/02 Primary

  Polythioethers; Polythioether-ethers · CPC title

• C08K5/5317

  Phosphonic compounds, e.g. R—P(:O)(OR')2 · CPC title

• C08K5/43

  Compounds containing sulfur bound to nitrogen · CPC title

• C09J11/06

  organic · CPC title