| 摘要 |
Rubber reinforcing polyester filament cord having flexibility, adhesiveness to halogenated butyl rubber and EPDM rubber, and smoothness; comprising a polyester filament yarn with a surface coating of an aromatic polyepoxide, initial condensation product of resorcin-formaldehyde (A) and a rubber latex (B), single-twisted at 3-150 turns per meter to make a twisted cord and satisfying properties (a) to (c):(a) about 0.15 to 0.35 coefficient of dynamic friction between filament cord and smooth metal,(b) about 0.05 or less variation of coefficient of dynamic friction between filament cord and smooth metal, and(c) about 3 wt % or more rubber remaining after standard cord stripping test.
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