B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/115
B32B 5/26 (2006.01) B29C 70/08 (2006.01) B32B 5/28 (2006.01) D04H 1/58 (2006.01)
Patent
CA 1282309
ABSTRACT Fibrous mat for hot moulding to moulded articles. A fibrous mat for hot moulding to moulded articles is described. This comprises a firm sandwich or union formed from a central tangled fibre layer subject to the action of a binder and in each case one heatproof, binder-containing tangled fibre surface layer on the two surfaces of the central layer. The surface layer, at least of the unmoulded mat, has a greater tensile strength than the central layer and in the case of the mat moulded to the moulded article is in the form of a moisture- regulating membrane. The weight per unit area of the binder-free portion of the heatproof tangled fibres of the surface layer is 10 to 100 g/m and the individual tangled fibres are coated in fibre-envel- oping manner with 100 to 200% by weight, based on said weight per unit area, of a binder already precondensed prior to the moulding of the fibrous mat, in such a way that the diameter ratio between the coated and the uncoated tangled fibres of the surface layer is between 1.4 and 1.75.
543129
Kiss Gunter Hans
Magna International Inc.
Mcfadden Fincham
LandOfFree
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