Polypropylene fibers having improved heat- shrinkability and...

Details Polypropylene fibers having improved heat- shrinkability and... Polypropylene fibers having improved heat- shrinkability and...

D - Textiles, Paper

01

F

18/636

D01F 6/06 (2006.01)

Patent

CA 1204260

ABSTRACT OF THE DISCLOSURE Polypropylene fibers having a much improved percentage heat shrinkage and also an improved tenacity are provided, which fibers comprise a polypropylene resin having a density of 0.905 or more, an isotactic pentad ratio of boiling n-heptane-insoluble portion (P0) of 0.960 or more and a ratio of pentad having two different kinds of configurations (P2), of 0.002 (0.2%) or less.

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