B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/115, 154/80
B32B 27/04 (2006.01) B29C 69/00 (2006.01) B29C 70/08 (2006.01) B29C 70/46 (2006.01)
Patent
CA 1286968
ABSTRACT OF THE DISCLOSURE A method of making a fibre reinforced plastics structure having a plurality of layers, including a first layer which is fully consolidated with uniformly dispersed fibres and a second layer which is formed as an absorbent matrix. The structure is formed from a first sheet of fibre reinforced thermoplastics material which will consolidate when cooled after subjection to pressure at a temperature above the melt temperature of the thermoplastics material of the first sheet and a second sheet of fibre reinforced thermoplastics material which will remain porous when cooled after subjection to pressure at a temperature above the melt temperature of the thermoplastics material of the second sheet comprising. The method involves a first step of heating the first and second sheets to a temperature above that at which the thermoplastics materials of both of the sheets are caused to melt. Then, the first and second sheets, whilst in surface contact, are subjected to pressure in a mould, whereby said first and second sheets bond together in conformity with the shape of the mould and form a laminated moulding having a fully consolidated first layer and a second layer at least a portion of which remains porous.
543088
Biggs Ian Stedman
Radvan Bronislaw
Fetherstonhaugh & Co.
The Wiggins Teape Group Limited
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