Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1996-05-13
1998-05-19
Weisberger, Richard
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156327, 28107, D04H 1108, D04H 1800, B29C 6714
Patent
active
057530629
ABSTRACT:
A glass mat reinforced thermoplastic semi-finished sheet material comprising thermoplastic resin and at least two needled continuous and/or chopped glass fibre strand mats is disclosed as well as a method for its manufacturing and its use. Each of said glass mats is needled from the two sides in an asymmetrical way, so that the number of fibre ends protruding from the two major mat surfaces are practically the same, but the length of said fibre ends protruding from the first major surface is substantially longer than the length of the fibre ends protruding from the second opposite major surface. Said glass mats are impregnated with thermoplastic resin, having either their first major surfaces directed towards the outside surface of said thermoplastic sheet, for maximum mouldability, or having their second major surfaces directed towards the outside surface of said thermoplastic sheet, for maximum surface quality of the moulded part.
REFERENCES:
patent: 4207377 (1980-06-01), Segal
patent: 4335176 (1982-06-01), Baumann
patent: 4885205 (1989-12-01), Wahl et al.
patent: 5018255 (1991-05-01), Bolliand
Jansz Just Jan Christiaan
Sengbusch Joachim
Symalit AG
Weisberger Richard
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