Pre-foamed beads of polyethylene base resin
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United States of America Patent
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May 14, 1991
Issued Date -
N/A
app pub date -
Nov 2, 1988
filing date -
Oct 24, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of forming pre-foamed beads of a polyethylene-base resin are disclosed. The polyethylene-base resin has been obtained by crosslinking a starting polyethylene-base resin having a density greater than 0.940 g/cm.sup.3 and the pre-foamed beads have a crosslinking degree of 10-45% gel content. The pre-foamed beads can provide a molded articles having excellent rigidity and dimensional accuracy and showing superb dimensional stability under heat.
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