Forming plastic articles having strands by stretching
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United States of America Patent
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-
Jul 19, 1983
Grant Date -
N/A
app pub date -
Oct 3, 1980
filing date -
Oct 9, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to make a non-planar plastics material article, a starting material has at least one ring of holes or depressions and is pressed so that the part which is within the ring is moved generally at right angles to the plane of the ring with respect to the part which is outside the ring, thereby stretching, into orientated strands, zones between adjacent holes or depressions in the ring; in the finished article, the strands interconnect the two parts.
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