High Resiliency Foams and Components and Articles Formed Therefrom

Content Provider	The Lens
Description	L'invention concerne des mousses haute élasticité ainsi que des articles et des éléments formés à partir de ladite mousse. Selon divers aspects, l'invention concerne des compositions de résine comprenant un mélange de polymères rendus compatibles d'un premier copolymère d'éthylène-acétate de vinyle et d'un élastomère thermoplastique oléfinique. Selon certains aspects, les compositions de résine peuvent comprendre d'environ 65 parties pour cent de résine à environ 100 parties pour cent de résine du mélange de polymères rendus compatibles, d'environ 0 à environ 20 parties pour cent de résine d'un second copolymère d'éthylène-acétate de vinyle ; d'environ 0,1 partie pour cent de résine à environ 5 parties pour cent de résine d'oxyde de zinc ; d'environ 1 partie pour cent de résine à environ 10 parties pour cent de résine de carbonate de calcium ; d'environ 1 partie pour cent de résine à environ 10 parties pour cent de résine d'un agent gonflant chimique ; et d'environ 0,1 partie pour cent de résine à environ 1,5 partie pour cent de résine d'un agent de réticulation.
Abstract	High resiliency foams are provided as well as articles and components formed therefrom. In various aspects, resin compositions are provided including a compatibilized polymer blend of a first ethylene vinyl acetate copolymer and an olefinic thermoplastic elastomer. In some aspects, the resin compositions can include about 65 parts per hundred resin to about 100 parts per hundred resin of the compatibilized polymer blend, about 0 to about 20 parts per hundred resin of a second ethylene vinyl acetate copolymer; about 0.1 parts per hundred resin to about 5 parts per hundred resin of zinc oxide; about 1 parts per hundred resin to about 10 parts per hundred resin of calcium carbonate; about 1 parts per hundred resin to about 10 parts per hundred resin of a chemical blowing agent; and about 0.1 parts per hundred resin to about 1.5 parts per hundred resin of a crosslinking agent.
Related Links	https://www.lens.org/lens/patent/009-349-370-312-36X/frontpage
Language	English
Publisher Date	2019-08-08
Access Restriction	Open
Alternative Title	Mousses Haute Élasticité, Et Éléments Et Articles Formés À Partir De Ladite Mousse
Content Type	Text
Resource Type	Patent
Date Applied	2019-01-31
Agent	Thomas | Horstemeyer Llp
Applicant	Nike Innovate Cv Nike Inc
Application No.	2019016084
Claim	We claim: A foam component for an article of footwear, comprising: a foamed, crosslinked reaction product of a resin composition comprising about 65 parts per hundred resin to about 100 parts per hundred resin of a polymer blend, the polymer blend comprising a first ethylene vinyl acetate copolymer and an olefinic thermoplastic elastomer; from 0 to about 20 parts per hundred resin of a second ethylene vinyl acetate copolymer; about 0.1 parts per hundred resin to about 5 parts per hundred resin of zinc oxide; about 1 parts per hundred resin to about 10 parts per hundred resin of calcium carbonate; about 1 parts per hundred resin to about 10 parts per hundred resin of a chemical blowing agent; and about 0.1 parts per hundred resin to about 1.5 parts per hundred resin of a crosslinking agent. The foam component for an article of footwear according to claim 1 , wherein the olefinic thermoplastic elastomer is a chemically modified olefinic thermoplastic elastomer. The foam component for an article of footwear according to claim 2, wherein the chemically modified olefinic thermoplastic elastomer includes polar functional groups covalently bonded to polymer chains of the chemically modified thermoplastic elastomer. The foam component for an article of footwear according to claim 3, wherein the polar functional groups are bonded to a backbone region, an end group, a side chain, or combination thereof, of the polymer chains. The foam component for an article of footwear according to claim 1 , wherein the olefinic thermoplastic elastomer includes a polyether-polyester thermoplastic elastomer. The foam component for an article of footwear according to claim 1 , wherein the olefinic thermoplastic elastomer consists essentially of a chemically modified polyether-polyester thermoplastic elastomer. The foam component for an article of footwear according to claim 1 , wherein the resin composition includes a compatibilizing agent. The foam component for an article of footwear according to claim 7, wherein the compatibilizing agent is a surfactant. The foam component for an article of footwear according to claim 1 , wherein the resin composition has a melt flow index of about 0.7 grams per 10 minutes to about 1.0 grams per 10 minutes. The foam component for an article of footwear according to claim 1 , wherein the resin composition comprises about 85 parts per hundred resin to about 95 parts per hundred resin of the polymer blend. The foam component for an article of footwear according to claim 1 , wherein the resin composition comprises about 5 parts per hundred resin to about 15 parts per hundred resin of the second ethylene vinyl acetate copolymer. The foam component for an article of footwear according to claim 1 , wherein the second ethylene vinyl acetate copolymer has a melt index of about 1 gram per 10 minutes to about 3 grams per 10 minutes. The foam component for an article of footwear according to claim 1 , wherein the second ethylene vinyl acetate copolymer has a vinyl acetate content of about 15% to about 35% by weight based upon a weight of the second ethylene vinyl acetate copolymer. The foam component for an article of footwear according to claim 1 , wherein the foam component has an energy return of about 70% to about 85%. The foam component for an article of footwear according to claim 1 , wherein the foam component has a split tear of about 1.6 kg/cm to about 4.0 kg/cm. The foam component for an article of footwear according to claim 1 , wherein the foam component has an Asker C hardness of about 40 to 60 C. The foam component for an article of footwear according to claim 1 , wherein the foam component has a compression set of about 30% to about 75%. A method of making a foam component for an article of footwear, the method comprising: foaming and crosslinking a resin composition comprising about 65 parts per hundred resin to about 100 parts per hundred resin of a polymer blend, the polymer blend comprising a first ethylene vinyl acetate copolymer and a olefinic thermoplastic elastomer; from 0 to about 20 parts per hundred resin of a second ethylene vinyl acetate copolymer; about 0.1 parts per hundred resin to about 5 parts per hundred resin of zinc oxide; about 1 parts per hundred resin to about 10 parts per hundred resin of calcium carbonate; about 1 parts per hundred resin to about 10 parts per hundred resin of a chemical blowing agent; and about 0.1 parts per hundred resin to about 1.5 parts per hundred resin of a crosslinking agent to form a foam composition; molding the foam composition using a mold to form a molded foam composition; solidifying the molded foam composition in the mold to form the foam component; and removing the foam component for an article of footwear from the mold. The method according to claim 18, wherein the method further comprises compression remolding the foam component for an article of footwear to form a remolded foam component for an article of footwear. The method of claim 19, wherein the compression remolding includes annealing the foam component for an article of footwear prior to compression remolding the foam component for an article of footwear, or includes annealing the remolded foam component for an article of footwear, or includes both.
CPC Classification	CHARACTERISTIC FEATURES OF FOOTWEAR;PARTS OF FOOTWEAR COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
Extended Family	009-349-370-312-36X 075-527-147-599-76X
Patent ID	2019152669
Inventor/Author	Park Hyunguk
IPC	A43B13/02
Status	Pending
Simple Family	009-349-370-312-36X 075-527-147-599-76X
CPC (with Group)	A43B7/1415 A43B7/148 A43B13/125 A43B13/16 C08L33/06 C08L2205/025 C08L2205/03
Issuing Authority	United States Patent and Trademark Office (USPTO)
Kind	Patent Application Publication