Valve element and fluid control valve
US-2017292622-A1 · Oct 12, 2017 · US
Valve member
US12259052B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12259052-B2 |
| Application number | US-202118009730-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 16, 2021 |
| Priority date | Jun 17, 2020 |
| Publication date | Mar 25, 2025 |
| Grant date | Mar 25, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The valve member according to one embodiment of the present disclosure is a resin formed product having a crosslinked ethylene-tetrafluoroethylene copolymer as a main component, and having a crosslinking density of 85.0 mol/m 3 or more calculated from a storage modulus at 300° C.
First claim
Opening claim text (preview).
The invention claimed is: 1. A valve member consisting of a resin formed product, the resin formed product comprising a crosslinked ethylene-tetrafluoroethylene copolymer as a main component and having a crosslinking density of 85.0 mol/m 3 or more calculated from a storage modulus at 300° C. wherein the valve member is a valve element, a valve seat or a combination thereof. 2. The valve member according to claim 1 , wherein the resin formed product has a creep strain after being held at 23° C. for 100 hours under a pressure of 13.7 MPa, of 8.0% or less.
Assignees
Inventors
Classifications
with dienes · CPC title
- C08L27/18Primary
Homopolymers or copolymers or tetrafluoroethene · CPC title
Lift valves {or globe valves}, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces ({in combination with sliding valves F16K3/246, F16K3/267} ; diaphragm valves F16K7/00) · CPC title
Crosslinking, e.g. vulcanising, of macromolecules (mechanical aspects B29C35/00; crosslinking agents C08K) · CPC title
Chemical modification by after-treatment (graft polymers, block polymers, crosslinking with unsaturated monomers or with polymers C08F251/00 - C08F299/00; of conjugated diene rubbers C08C) · CPC title
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Frequently asked questions
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- What does patent US12259052B2 cover?
- The valve member according to one embodiment of the present disclosure is a resin formed product having a crosslinked ethylene-tetrafluoroethylene copolymer as a main component, and having a crosslinking density of 85.0 mol/m 3 or more calculated from a storage modulus at 300° C.
- Who is the assignee on this patent?
- Sumitomo Electric Fine Polymer Inc
- What technology area does this patent fall under?
- Primary CPC classification C08L27/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 25 2025 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).