Plastic-paper composite in foil-form and its use for producing weatherproof laminated sheets with surface protection
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United States of America Patent
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-
Mar 2, 1999
Grant Date -
N/A
app pub date -
Aug 19, 1996
filing date -
Oct 7, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention concerns a plastics-paper composite which substantially consists of a paper layer, a polypropylene layer and a polyester layer, the polyester layer forming one of the two surface layers of the plastics-paper composite. This plastics-paper composite is used to produce weatherproof laminated sheets with surface protection, an acrylate layer being applied to the polyester layer of the plastics-paper composite. This composite is stacked on one or both sides with a plurality of papers impregnated with synthetic resin to form a stack, the acrylate layer lying against the outermost paper layer(s). This stack is then pressed at high pressure and high temperature. For use, the surface protection is removed from the acrylate layer as from the polyester layer.
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Cited Art Landscape
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