Polyester base band, method of the production band and application thereof

Polyester base band, method of the production band and application thereof

  • CN 103,189,182 B
  • Filed: 09/27/2011
  • Issued: 02/22/2019
  • Est. Priority Date: 09/30/2010
  • Status: Active Grant
First Claim
Patent Images

1. a kind of method for preparing braid over braid, includes the following steps:

  • (a) by composition be extruded as fused film and to the film carry out chilling, the composition include (i) 75 weight %~The thermoplastic polyester of 99.9 weight %, the linear low density polyethylene of (ii) 3 weight of weight %~10 % and (iii) 0 weight %The other components of~5 weight %;

    (b) obtained film is cut in the longitudinal direction and is stretched with -400m/ minutes 100m/ minutes rates of extension multiple to be formedThe band of uniaxial orientation;

    (c) band of the uniaxial orientation is subjected to heat setting;

    Wherein the braid over braid has 5 μ

    m~250 μ

    m of thickness and the width of 0.5mm~7mm.

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