Back to results
US 2025/0019476 A1Published application
Copolymer, formed article, extrusion formed article and transfer molded article
AssigneeDaikin Industries, Ltd.
InventorsTadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Takahisa AOYAMA
Life of this patent
Estimating the term…
Abstract
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 2.4 to 3.48 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.8 to 1.4 g/10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.
Claims5
A copolymer, comprising tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit,
- wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 2.4 to 3.4% by mass with respect to the whole of the monomer units,
- a melt flow rate at 372° C. of 0.8 to 1.4 g/10 min, and
- the total number of —CF═CF2, —CF2H, —COF, —COOH, —COOCH3, —CONH2 and —CH2OH of 20 or less per 106 main-chain carbon atoms.
Dependencies are inferred from the claim text.