High impact visbroken polymeric blends
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United States of America Patent
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Mar 1, 1983
Grant Date -
N/A
app pub date -
Jan 11, 1982
filing date -
Jan 11, 1982
priority date (Note) -
Expired
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Abstract
A high melt flow rate, high impact, visbroken polymeric material is disclosed which comprises a first component which is selected from the group consisting of block copolymers of propylene and ethylene, reactor-made intimate mixtures of propylene and randomly oriented copolymers of propylene and ethylene, and blends of polypropylene and randomly oriented copolymers of propylene and ethylene, and the second component which is selected from the group consisting low density polyethylene, ethylene-vinyl acetate copolymers, acrylate-modified polyethylenes, high density polyethylene, ethylene-propylene rubber (EPR or EPDM), and blends thereof. The two components are first blended and then visbroken.
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