B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 43/00 (2006.01) D01D 5/42 (2006.01) D01F 6/06 (2006.01) B29C 43/48 (2006.01)
Patent
CA 2446436
A process for production of an article from a woven fabric of melt spun and drawn fibres or tapes of oriented polypropylene homopolymer or copolymer is disclosed, comprising subjecting the woven fabric of melt spun and drawn fibres or tapes to elevated temperature and pressure sufficient to melt a proportion of the polymer, characterised in that the draw ratio of said melt spun and drawn fibres or tapes is at least 7:1.
Cette invention concerne un procédé de fabrication d'articles à partir d'un tissu de fibres ou de bandes filées à chaud et étirées d'homopolymère ou de copolymère de polypropylène. Ce procédé, qui consiste à soumettre le tissu de fibres ou de bandes filées à chaud et étirées à une température accrue et à une pression suffisante pour faire fondre une partie du polymère, se caractérise en ce que taux d'étirage de ladite fibre/bande filée et étirée est d'au moins 7:1.
Bonner Mark James
Hine Peter John
Ward Ian Macmillan
Amoco Fabrics Gmbh
Fetherstonhaugh & Co.
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