Shoe sole member and shoe
US-2020046067-A1 · Feb 13, 2020 · US
Shoe sole member, shoe, and method for manufacturing shoe sole member
US11517075B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11517075-B2 |
| Application number | US-201817294786-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 19, 2018 |
| Priority date | Nov 19, 2018 |
| Publication date | Dec 6, 2022 |
| Grant date | Dec 6, 2022 |
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- Title
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- Abstract
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Abstract
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A shoe sole member formed by a foam includes cells having a certain size and being excellent in transparency in order to provide a shoe sole member being lightweight and excellent cushioning properties while having transparency.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing a shoe sole member constituted by a foam, comprising: injecting a polymer composition comprising a foaming agent in a heated and molten state into a cavity of a forming mold under temperature conditions in which a complex viscosity of a polymer contained in the polymer composition in a largest amount at a frequency of 10 Hz and a complex viscosity of the polymer at a frequency of 600 Hz satisfy both of formula (1) and formula (2) below: 500 Pa·s≤η 10 ≤8000 Pa·s (1) 200 Pa·s≤η600 ≤700 Pa·s . . . (2); and expanding a volume of the cavity with the injected polymer composition placed therein, the expanding the volume of the cavity comprising foaming the polymer composition to produce a foam by which the shoe sole member is constituted, and producing the foam so as to have transparency, an elastic modulus between 0.02 MPa and 1.4 MP of the foam, an expansion ratio between 1 time and 3 times of the foam, and an average cell diameter between 0.8 mm and 20 mm of the foam. 2. The method for producing a shoe sole member according to claim 1 , wherein the polymer composition comprises one or more elements selected from the group consisting of an olefin-based polymer, a urethane-based polymer, an ester-based elastomer, and a styrene-based thermoplastic elastomer. 3. The method for producing a shoe sole member according to claim 2 , wherein the polymer composition comprises a plasticizer. 4. The method for producing a shoe sole member according to claim 1 , wherein the shoe sole is a midsole.
Assignees
Inventors
Classifications
Soles · CPC title
using pressure difference, e.g. by injection or by vacuum · CPC title
made in one piece using a moulding technique, e.g. by injection moulding or casting · CPC title
Characterised by the use of oils, fats or waxes; Derivatives thereof · CPC title
by injection moulding; Apparatus therefor · CPC title
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Frequently asked questions
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- What does patent US11517075B2 cover?
- A shoe sole member formed by a foam includes cells having a certain size and being excellent in transparency in order to provide a shoe sole member being lightweight and excellent cushioning properties while having transparency.
- Who is the assignee on this patent?
- Asics Corp
- What technology area does this patent fall under?
- Primary CPC classification A43B13/12. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Dec 06 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).