Propylene-olefin copolymers and methods for making the same
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United States of America Patent
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Apr 28, 2020
Grant Date -
Feb 15, 2018
app pub date -
Jul 17, 2017
filing date -
Aug 15, 2016
priority date (Note) -
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Abstract
Provided is a composition having 70 wt % to 90 wt % of a first propylene-olefin copolymer component having an ethylene content of 15 to 21 wt %; and 10 wt % to 30 wt % of a second propylene-olefin copolymer component having an ethylene content of 6 to 10 wt %; wherein the weight average molecular weight of the first component is 250,000 to 1,780,000 g/mol higher than the weight average molecular weight of the second component; wherein the reactivity ratio product of the first component is less than 0.75; wherein the reactivity ratio product of the second component is greater than or equal to 0.75.
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