Curable resin composition, fuel cell using same, and sealing method using same
US-2019214659-A1 · Jul 11, 2019 · US
Seal member and production method thereof
US2024337317A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024337317-A1 |
| Application number | US-202418624984-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 2, 2024 |
| Priority date | Apr 6, 2023 |
| Publication date | Oct 10, 2024 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A seal member including a resin portion that contains a resin and a polymerization inhibitor, in which when an SP value [(J/cm 3 ) 0.5 ] of the resin is defined as SPb and an SP value [(J/cm 3 ) 0.5 ] of the polymerization inhibitor is defined as SPp, a relationship of Expression (1) is satisfied, SPp - SPb ≤ 16.37 Expression ( 1 ) when an area of the polymerization inhibitor in a cross section is set to 100% by area in observation of the cross section of the resin portion of the seal member, an area of the domain of the polymerization inhibitor with a short diameter of 5 μm or greater is 25% by area or less.
First claim
Opening claim text (preview).
What is claimed is: 1 . A seal member comprising: a resin portion that contains a resin and a polymerization inhibitor, wherein when an SP value [(J/cm 3 ) 0.5 ] of the resin is defined as SPb and an SP value [(J/cm 3 ) 0.5 ] of the polymerization inhibitor is defined as SPp, a relationship of Expression (1) is satisfied, SPp - SPb ≤ 16.37 Expression ( 1 ) wherein a cross section of the resin portion of the seal member contains a domain of the polymerization inhibitor, and when an area of the polymerization inhibitor in the cross section is set to 100% by area, a proportion of the domain of the polymerization inhibitor with a short diameter of 5 μm or greater is 25% by area or less. 2 . The seal member according to claim 1 , wherein a content of the polymerization inhibitor in the seal member is 0.1% by mass or greater and 10.0% by mass or less. 3 . The seal member according to claim 1 , wherein when the area of the polymerization inhibitor in the cross section is set to 100% by area, the proportion of the domain of the polymerization inhibitor with a short diameter of 5 μm or greater is 15% by area or less. 4 . The seal member according to claim 1 , wherein the resin portion has a Young's modulus of 0.1 GPa or greater and 30.0 GPa or less. 5 . The seal member according to claim 1 , wherein the resin is polytetrafluoroethylene. 6 . The seal member according to claim 1 , wherein the seal member has a structure in which the polymerization inhibitor contains two phenolic hydroxyl groups. 7 . The seal member according to claim 1 , wherein the polymerization inhibitor has a melting point of 120° C. or higher. 8 . The seal member according to claim 1 , wherein the seal member is a gasket. 9 . A method of producing the seal member, the method comprising: a step of molding the resin to obtain an intermediate molded product; and a step of impregnating the intermediate molded product with a solution obtained by dissolving the polymerization inhibitor in an organic solvent, the seal member comprising: a resin portion that contains a resin and a polymerization inhibitor, wherein when an SP value [(J/cm 3 ) 0.5 ] of the resin is defined as SPb and an SP value [(J/cm 3 ) 0.5 ] of the polymerization inhibitor is defined as SPp, a relationship of Expression (1) is satisfied, SPp - SPb ≤ 16.37 Expression ( 1 ) wherein a cross section of the resin portion of the seal member contains a domain of the polymerization inhibitor, and when an area of the polymerization inhibitor in the cross section is set to 100% by area, a proportion of the domain of the polymerization inhibitor with a short diameter of 5 μm or greater is 25% by area or less.
Assignees
Inventors
Classifications
Producing sealings (B29D99/0085 takes precedence) · CPC title
PTFE, i.e. polytetrafluoroethylene {, e.g. ePTFE, i.e. expanded polytetrafluoroethylene} · CPC title
Yield strength; Tensile strength · CPC title
- F16J15/102Primary
characterised by material · CPC title
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Frequently asked questions
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- What does patent US2024337317A1 cover?
- A seal member including a resin portion that contains a resin and a polymerization inhibitor, in which when an SP value [(J/cm 3 ) 0.5 ] of the resin is defined as SPb and an SP value [(J/cm 3 ) 0.5 ] of the polymerization inhibitor is defined as SPp, a relationship of Expression (1) is satisfied, …
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification F16J15/102. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Oct 10 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).