Expanded olefin polymer
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United States of America Patent
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Jul 22, 1980
Grant Date -
N/A
app pub date -
Oct 19, 1978
filing date -
Oct 21, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A thermoplastic synthetic resin such as polyethylene or ethylene-vinyl acetate copolymer resin containing 0.1 to 10 wt. % of a specific additive selected from specific classes of compounds, namely saturated higher fatty acid amides, saturated higher aliphatic amines and complete esters of saturated higher fatty acids is found to be very suitable for production of expanded articles and can be easily formed into expanded articles with little shrinkage after expansion, free from creases on the surface or cracks on the cell walls, and having excellent characteristics such as good closed cellular characteristic, higher compressive strength, low density, etc.
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