D - Textiles – Paper – 01 – D
Patent
D - Textiles, Paper
01
D
18/1020, 154/119
D01D 5/42 (2006.01) B29C 43/30 (2006.01) B29C 47/04 (2006.01) B29C 47/06 (2006.01) B29C 47/24 (2006.01) B29C 55/02 (2006.01) B32B 27/00 (2006.01)
Patent
CA 1107627
Abstract of the Disclosure A high-strength laminate comprising generally weakly adhered biaxially oriented films, each formed of a blend which exhibits a distinct fibrous morphology with the fibres forming a distinct unidirectional grain when measured on a macro-scale but with the fibre-portions strongly deflected from this direction as seen on a micro-scale and with the said unidirectional grain in at least two of the films criss-crossing each other. Producing this laminate by meltattenuating the blend(s) while extruding the latter to films, cross-laminating the layers before or after solidification while they are still in molecularly unoriented state - except for the weak orientation produced by the melt-attenuation - and finally strongly biaxially orienting the laminate by stretching in several steps, whereby the stretching is generally uniaxial during each step.
230603
Fetherstonhaugh & Co.
Rasmussen Ole-Bendt
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