Process for the preparation of ultrastretchable polymer...

Details Process for the preparation of ultrastretchable polymer... Process for the preparation of ultrastretchable polymer...

D - Textiles, Paper

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D01F 6/04 (2006.01) B29C 55/00 (2006.01) B29C 67/24 (2006.01) C08J 5/18 (2006.01) C08L 23/06 (2006.01)

Patent

CA 1325093

(10) ABSTRACT An ultrastretchable polymer material is prepared starting from polyolefine particles with a low entanglement density and a weight average molecular weight (Mw) higher than 400,000, the par- ticles being densified to a coherent material together with a process auxiliary material at an elevated temperature, but below the melting point of the pure polyolefine. From this ultrastretchable material, objects with a high ten- sile strength and a high modulus can be produced by stretching it, for instance, at room temperature which is at most 70?C below the temperature at which the polyolefine melts under prevailing conditions, if desired after removal of the process auxiliary agent presents in it.

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