Low density ethylene-based polymers with high melt strength
First Claim
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1. A composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties:
- a) a Mw(abs) versus I2 relationship;
Mw(abs)<
A×
[(I2)B], where A=5.00×
102 (kg/mole)/(dg/min)B, and B=−
0.40; and
b) a MS versus I2 relationship;
MS≧
C×
[(I2)D], where C=13.5 cN/(dg/min)D, and D=−
0.55, andwherein the first ethylene-based polymer has an I2>
1 g/10 min.
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Abstract
The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs) versus I2 relationship: Mw(abs)<A×[(I2)B], where A=5.00×102 (kg/mole)/(dg/min)B, and B=−0.40; and b) a MS versus I2 relationship: MS≧C×[(I2)D], where C=13.5 cN/(dg/min)D, and D=−0.55.
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Citations
15 Claims
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1. A composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties:
-
a) a Mw(abs) versus I2 relationship;
Mw(abs)<
A×
[(I2)B], where A=5.00×
102 (kg/mole)/(dg/min)B, and B=−
0.40; andb) a MS versus I2 relationship;
MS≧
C×
[(I2)D], where C=13.5 cN/(dg/min)D, and D=−
0.55, andwherein the first ethylene-based polymer has an I2>
1 g/10 min. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification