Phosphorous acid compound, method for producing said compound, and use of said compound

Patent metadata

Field	Value
Publication number	US-10150857-B2
Application number	US-201615548796-A
Country	US
Kind code	B2
Filing date	Feb 5, 2016
Priority date	Feb 12, 2015
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

The present invention relates to a phosphorous acid compound represented by formula (I):

wherein R 1 represents a C 1-8 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkyl cycloalkyl group, a C 7-12 aralkyl group or a C 6-12 aryl group; R 2 represents a hydrogen atom or a C 1-3 alkyl group; and R 3 represents a C 3-25 alkylene group, a stabilizer for organic materials containing the phosphorous acid compound, a method for stabilizing an organic material in which the phosphorous acid compound is added to the organic material, and a stabilized organic material composition containing an organic material and the phosphorous acid ester compound.

First claim

The invention claimed is:

1. A phosphorous acid compound represented by formula (I):

wherein R 1 represents a C 1-8 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkyl cycloalkyl group, a C 7-12 aralkyl group or a C 6-12 aryl group; R 2 represents a hydrogen atom or a C 1-3 alkyl group; and R 3 represents a C 3-25 alkylene group.

2. A method for producing the phosphorous acid compound according to claim 1 by reacting a phenol compound represented by formula (II):

wherein R 1 , R 2 , and R 3 are as defined above, with a phosphorus trihalide.

3. A stabilizer for an organic material, containing the phosphorous compound according to claim 1 .

4. The stabilizer according to claim 3 , wherein the organic material is a thermoplastic resin.

5. The stabilizer according to claim 4 , wherein the thermoplastic resin is a polyolefin or an engineering plastic.

6. A method for stabilizing an organic material, wherein the phosphorous acid compound according to claim 1 is added to an organic material.

7. The stabilization method according to claim 6 , wherein the organic material is a thermoplastic resin.

8. The stabilization method according to claim 7 , wherein the thermoplastic resin is a polyolefin or an engineering plastic.

9. A stabilized organic material composition containing an organic material, and the phosphorous acid compound according to claim 1 .

10. The composition according to claim 9 , wherein the organic material is a thermoplastic resin.

11. The composition according to claim 10 , wherein the thermoplastic resin is a polyolefin or an engineering plastic.

Assignees

• Sumitomo Chemical Co

Inventors

• Matsumoto Shuhei
• Kimura Natsuko

Classifications

• C07F9/145 Primary

  with hydroxyaryl compounds · CPC title

• C09K15/08

  containing a phenol or quinone moiety · CPC title

• C08L101/00

  Compositions of unspecified macromolecular compounds · CPC title

• C09K15/32

  containing {two or more of} boron, silicon, phosphorus, selenium, tellurium or a metal · CPC title

• C08L23/00

  Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers · CPC title