Material in sheet form, convertible into a finished product by moulding-stamping or heat-shaping, comprising reinforcing fibers and a thermoplastics resin in power form, and process for preparing said material
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United States of America Patent
Stats
-
Feb 24, 1987
Issued Date -
N/A
app pub date -
Aug 21, 1985
filing date -
Apr 30, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a material in sheet form, used in a process of moulding-stamping or heat-forming involving melting of the thermoplastics resin contained in said material, said material in sheet form being prepared by the papermaking technique and comprising from 20 to 95% of reinforcing fibres and from 80 to 5% of thermoplastics resin in powder form forming the basic mixture and, with respect to this mixture, from 5 to 25% of a polyolefin pulp, from 5 to 30% of a binding agent and from 0.2 to 10% of at least one flocculating agent. The invention also relates to the process for preparing said material in sheet form.
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