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AssigneeAGC Inc.
InventorsKosuke Shibasaki, Shuma Kawanami, Daisuke Taguchi, Shintaro Fukunaga, Mie Takayama, Kazuhiro Nakabayashi
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To provide a copolymer capable of forming a coated electrical wire excellent in engine oil resistance, a composition, a molded product, and a coated electrical wire. The copolymer of the present invention is a copolymer comprising units based on ethylene, units based on tetrafluoroethylene, and units based on compound A represented by CH═CX(CF2)nY (wherein X and Y are each independently a hydrogen atom or a fluorine atom, and n is an integer of from 2 to 6) or compound B represented by CF2═CF—O—C3F7, wherein the crystal lamella thickness determined by the small angle X-ray scattering method is at most 4.0 nm and the melting point is at least 245° C.
A copolymer comprising units based on ethylene, units based on tetrafluoroethylene, and units based on a compound represented by formula (A) or a compound represented by formula (B), wherein a crystal lamella thickness obtained by a small angle X-ray scattering (SAXS) method is at most 4.0 nm, and a melting point is at least 245° C.:
Dependencies are inferred from the claim text.