Coating composition and laminate
US-2024093052-A1 · Mar 21, 2024 · US
Copolymer, formed article and injection molded article
US2025011498A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025011498-A1 |
| Application number | US-202418894268-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 24, 2024 |
| Priority date | Mar 30, 2022 |
| Publication date | Jan 9, 2025 |
| Grant date | — |
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- Title
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Abstract
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There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 5.5 to 6.5% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 36.1 to 49.9 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.
First claim
Opening claim text (preview).
1 . A copolymer, comprising tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 5.5 to 6.5% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 36.1 to 49.9 g/10 min, and the total number of —CF═CF 2 , —CF 2 H, —COF, —COOH, —COOCH 3 , —CONH 2 and —CH 2 OH of 50 or less per 10 6 main-chain carbon atoms. 2 . The copolymer according to claim 1 , wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 5.7 to 6.3% by mass with respect to the whole of the monomer units. 3 . The copolymer according to claim 1 , wherein the copolymer has a melt flow rate at 372° C. of 37.0 to 49.0 g/10 min. 4 . An injection molded article, comprising the copolymer according to claim 1 .
Assignees
Inventors
Classifications
by reaction with free halogens · CPC title
- C08F214/262Primary
with fluorinated vinyl ethers · CPC title
Disposition of insulation · CPC title
containing halogen in the molecules, e.g. halogenated oils · CPC title
with homogeneous wall (F16L11/11 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US2025011498A1 cover?
- There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 5.5 to 6.5% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 36.1 to 49.9 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.
- Who is the assignee on this patent?
- Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08F214/262. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jan 09 2025 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).