Title:
TUBE AND METHOD FOR PRODUCING TUBE
Document Type and Number:
WIPO Patent Application WO/2024/053707
Kind Code:
A1
Abstract:
Provided is a tube containing a tetrafluoroethylene/fluoroalkyl vinyl ether copolymer, wherein the number of functional groups in the copolymer is 500 or fewer per 106 carbon atoms, the melting point of the copolymer is 280 to 315°C, the content of fluoroalkyl vinyl ether units in the copolymer is 3.0 to 12.0 mass% relative to the total monomer units, the melt flow rate of the copolymer is 1 to 15 g/10 min, the number of particles emitted from the inner surface of the tube is 3500 or fewer per a tube inner surface area of 1 cm2, and the amount of total organic carbon eluted from the inner surface of the tube into water is 50 ng or less per a tube inner surface area of 1 cm2.
Inventors:
IMAMURA HITOSHI (JP)
HAMADA HIROYUKI (JP)
MUKAI ERI (JP)
FUJISAWA MANABU (JP)
HAMADA HIROYUKI (JP)
MUKAI ERI (JP)
FUJISAWA MANABU (JP)
Application Number:
PCT/JP2023/032680
Publication Date:
March 14, 2024
Filing Date:
September 07, 2023
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C08J5/00; B29C48/09; F16L11/06; B29K27/12; B29L23/00
Domestic Patent References:
| WO2022059501A1 | 2022-03-24 | |||
| WO2021033539A1 | 2021-02-25 | |||
| WO2019187859A1 | 2019-10-03 | |||
| WO2020004083A1 | 2020-01-02 |
Foreign References:
| JP2000233435A | 2000-08-29 | |||
| JP2019006983A | 2019-01-17 |
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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