Composition and method for producing the same, and powder coating material, pellet, resin formed article, and electric wire

Patent metadata

Field	Value
Publication number	US-9868877-B2
Application number	US-201013381516-A
Country	US
Kind code	B2
Filing date	Jun 17, 2010
Priority date	Jun 30, 2009
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

The present invention provides a composition including a fluorine-containing polymer, and excellent in heat resistance even if only a small amount of additives is added to the composition. The present invention relates to a composition, comprising: a fluorine-containing polymer (a) and a cobalt compound (b).

First claim

The invention claimed is:

1. A composition, comprising: a fluorine-containing polymer (a) and a cobalt compound (b),
wherein the fluorine-containing polymer (a) includes a polymerization unit based on at least one monomer selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, perfluoro(alkyl vinyl ether), chlorotrifluoroethylene, vinylidene fluoride, and vinyl fluoride,
wherein the cobalt compound (b) is at least one selected from the group consisting of cobalt acetate, cobalt benzoate, and organometallic complexes of cobalt, and
wherein an amount of the cobalt compound (b) is 1 to 100 ppm of the fluorine-containing polymer (a).

2. The composition according to claim 1 ,
wherein the cobalt compound (b) is a tetrapyrrole cyclic compound.

3. The composition according to claim 1 ,
wherein the cobalt compound (b) is an organometallic complex in which a ligand having a porphyrin ring or a phthalocyanine ring makes coordinate bonds with a cobalt atom.

4. The composition according to claim 1 ,
wherein the cobalt compound (b) is phthalocyanine cobalt.

5. The composition according to claim 1 ,
wherein the cobalt compound (b) is cobalt acetylacetonate.

6. The composition according to claim 1 ,
wherein an amount of the cobalt compound (b) is 1 to 50 ppm of the fluorine-containing polymer (a).

7. The composition according to claim 1 ,
wherein the fluorine-containing polymer (a) is at least one selected from the group consisting of polytetrafluoroethylene, tetrafluoroethylene/hexafluoropropylene copolymer, tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymers, ethylene/tetrafluoroethylene copolymer, ethylene/tetrafluoroethylene/hexafluoropropylene copolymer, polychlorotrifluoroethylene, chlorotrifluoroethylene/tetrafluoroethylene copolymer, ethylene/chlorotrifluoroethylene copolymer, polyvinylidene fluoride, tetrafluoroethylene/vinylidene fluoride copolymer, vinylidene fluoride/hexafluoropropylene/tetrafluoroethylene copolymer, vinylidene fluoride/hexafluoropropylene copolymer, and polyvinyl fluoride.

8. The composition according to claim 1 ,
wherein the fluorine-containing polymer (a) is at least one selected from the group consisting of ethylene/tetrafluoroethylene copolymer and ethylene/tetrafluoroethylene/hexafluoropropylene copolymer.

9. The composition according to claim 1 , further comprising a titanium oxide.

10. A powder coating material, comprising the composition according to claim 1 .

11. A pellet, comprising the composition according to claim 1 .

12. A resin formed article formed from the composition according to claim 1 .

13. An electric wire, comprising:
a core wire; and
a covering material made of the composition according to claim 1 , covering the core wire.

14. A method for producing the composition according to claim 1 , the method comprising:
preparing a masterbatch for resin forming including the fluorine-containing polymer (a), and the cobalt compound (b) in an amount of 0.1% by mass or more of the amount of the fluorine-containing polymer (a) by mixing the fluorine-containing polymer (a) and the cobalt compound (b),
preparing the composition according to claim 1 by adding the fluorine-containing polymer (a) to the masterbatch for resin forming.

Assignees

• Nakatani Yasukazu
• Miyatani Toshio
• Torii Hiroshi
• Okamoto Natsumi
• Hirao Takayuki
• Fujisawa Manabu
• Sagisaka Shigehito
• Daikin Ind Ltd

Inventors

• Nakatani Yasukazu
• Miyatani Toshio
• Torii Hiroshi
• Okamoto Natsumi
• Hirao Takayuki
• Fujisawa Manabu
• Sagisaka Shigehito

Classifications

• C09D127/16

  Homopolymers or copolymers of vinylidene fluoride · CPC title

• C09D127/12 Primary

  containing fluorine atoms · CPC title

• C09D127/18

  Homopolymers or copolymers of tetrafluoroethene · CPC title

• C08K5/0091

  Complexes with metal-heteroatom-bonds · CPC title

• C08L27/12

  containing fluorine atoms · CPC title