Composition for sportswear and foam thereof

Patent metadata

Field	Value
Publication number	US-9416241-B2
Application number	US-201213982983-A
Country	US
Kind code	B2
Filing date	Feb 6, 2012
Priority date	Feb 7, 2011
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

A composition for sportswear, includes a rubber component (a) which contains an epihalohydrin rubber, a vulcanizing agent (b) in an amount of 0.1 to 10 parts by weight for 100 parts by weight of the rubber component (a), and a foaming agent (c) in an amount of 0.5 to 20 parts by weight therefor. The composition for sportswear is preferably includes a colorant (d).

First claim

The invention claimed is:

1. A composition for sportswear, comprising a rubber component (a) which comprises an epihalohydrin rubber, a vulcanizing agent (b) in an amount of 0.1 to 5 parts by weight for 100 parts by weight of the rubber component (a), and a foaming agent (c) in an amount of 3 to 15 parts by weight therefor, and wherein the epihalohydrin rubber is selected from epichlorohydrin/ethylene oxide copolymer, epichlorohydrin/ethylene oxide/allyl glycidyl ether terpolymer and combinations thereof.

2. The composition for sportswear according to claim 1 , further comprising a colorant (d).

3. The composition for sportswear according to claim 1 , wherein the epihalohydrin rubber is epichlorohydrin/ethylene oxide copolymer.

4. The composition for sportswear according to claim 1 , wherein the vulcanizing agent (b) is selected from polyamines, thioureas, thiadiazoles, mercaptotriazines, quinoxalines, organic peroxides, sulfur, morpholine polysulfides, thiuram polysulfides, polyphenols and combinations thereof.

5. The composition for sportswear according to claim 1 , wherein the vulcanizing agent (b) is selected from bisphenol S, 6-methylquinoxaline-2,3-dithiocarbonate, trimercapto-S-triazine, ethylenethiourea, dibutylthiourea, 1,3-diethylthiourea, trimethylthiourea and combinations thereof.

6. The composition for sportswear according to claim 1 , wherein the foaming agent (c) is a chemical foaming agent.

7. The composition for sportswear according to claim 1 , wherein the foaming agent (c) is selected from azodicarbonamide, azobisisobutyronitrile, barium azodicarboxylate, diazoaminobenzene, dinitrosopentamethylenetetramine, N,N′-dimethyl-N,N′-dinitrosotelephthalamide, trinitrosotrimethylenetriamine, 4,4′-oxybis(benzenesulfonylhydrazide), para-toluenesulfonylhydrazide, p-toluenesulfonylsemicarbazide, sodium hydrogencarbonate and combinations thereof.

8. The composition for sportswear according to claim 1 , wherein the foaming agent (c) is selected from azodicarbonamide, dinitrosopentamethylenetetramine, 4,4′-oxybis(benzenesulfonylhydrazide) and combinations thereof.

9. The composition for sportswear according to claim 1 , wherein the foaming agent (c) is 4,4′-oxybis(benzenesulfonylhydrazide).

10. The composition for sportswear according to claim 2 , wherein the colorant (d) is selected from the group consisting of pigments selected from metals, carbon species, oxides, carbonates, silicates, aluminates, ferrocyanides, azo pigments, polycyclic pigments, dyeing lakes, azine pigments, fluorescent pigments and combinations thereof; and dyes selected from basic dyes, acid dyes, oil-soluble dyes, dispersed dyes and combinations thereof.

11. The composition for sportswear according to claim 2 , wherein the colorant (d) is selected from aluminum powder, bronze powder, titanium yellow, carbon black, graphite, titanium oxide, zinc flower, red iron oxide, calcium carbonate, basic magnesium carbonate, clay, ultramarine blue, cobalt blue, iron blue, toluidine red, Permanent Carmine FB, Disazo Yellow AAA, Lake Red C, copper phthalocyanine, indanthrone blue, quinacridone red, Victoria Pure Blue BO Lake, alkali blue toner and combinations thereof.

12. The composition for sportswear according to claim 2 , wherein the colorant (d) is a non-black colorant.

13. The composition for sportswear according to claim 1 , wherein the rubber component comprising, an epihalohydrin rubber in a proportion of 10% by weight or more.

14. The composition for sportswear according to claim 1 , wherein the epihalohydrin rubber is present in a proportion of 10 to 99% by weight, and a rubber other than the epihalohydrin rubber is present in a proportion of 1 to 90% by weight.

15. The composition for sportswear according to claim 14 , wherein the rubber component further comprising natural rubber, isoprene rubber, 1,2-polybutadiene, styrene butadiene rubber, butyl rubber, ethylene propylene rubber, ethylene propylene diene rubber, chloroprene rubber, chlorosulfonated polyethylene, chlorinated polyethylene, acrylic rubber, acrylonitrile butadiene rubber, hydrogenated acrylonitrile butadiene rubber and combinations thereof.

16. A foam for sportswear obtained by vulcanizing and foaming the composition for sportswear recited in claim 1 .

17. The foam for sportswear according to claim 16 , wherein the foam has a closed-cell foam structure.

18. A material for sportswear consisting only of the foam for sportswear recited in claim 16 .

19. A material for sportswear comprising a foam material obtained by vulcanizing and foaming a composition comprising a rubber component (a) which comprises an epihalohydrin rubber, a vulcanizing agent (b) in an amount of 0.1 to 5 parts by weight for 100 parts by weight of the rubber component (a), and a foaming agent (c) in an amount of 3 to 15 parts by weight therefor, and wherein the epihalohydrin rubber is selected from epichlorohydrin/ethylene oxide copolymer, epichlorohydrin/ethylene oxide/ally′ glycidyl ether terpolymer and combinations thereof, and one or more fibers bonded to a single surface or two surfaces of the foam material.

20. A wetsuit, comprising the material for sportswear recited in claim 18 .

Assignees

• Ozaki Taro
• Funayama Toshiyuki
• Otaka Toyofumi
• Hamaguchi Koshiro
• Kitagawa Motoki
• Ono Tadahiro
• Osaka Soda Co Ltd

Inventors

• Ozaki Taro
• Funayama Toshiyuki
• Otaka Toyofumi
• Hamaguchi Koshiro
• Kitagawa Motoki
• Ono Tadahiro

Classifications

• C08J9/103 Primary

  Azodicarbonamide · CPC title

• A41D2500/52

  in sheet form · CPC title

• B63C11/04 Primary

  Resilient suits · CPC title

• A41D13/012

  for aquatic activities, e.g. with buoyancy aids · CPC title

• B63B2231/50

  Foamed synthetic materials · CPC title