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US 10,240,014 B2Granted
High clarity and strength polyethylene films
AssigneeEquistar Chemicals, LP
InventorThomas Schwab
Life of this patent
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Abstract
A film having an A/B/A structure comprising an layer A and a layer B. The layer A is present in an amount ranging from 25 to 65 wt. %, based upon the total weight of the A/B/A structure, and the layer A comprises a first A layer and a second A layer each independently comprise linear low density polyethylene. The layer B is present in an amount ranging from 35 to 75 wt. %, based upon the total weight of the A/B/A structure, and the layer B, which comprises high density polyethylene, is positioned between the first A layer and the second A layer.
Claims18
A film having an A/B/A structure comprising:
- (A) a layer A, wherein the layer A:
- (i) is present in an amount ranging from 25 to 65 wt. %, based upon the total weight of the A/B/A structure, and
- (ii) the layer A comprises a first A layer and a second A layer, the first A layer and second A layer each independently comprise linear low density polyethylene;
- and
- (B) a layer B, wherein the layer B comprises high density polyethylene:
- (i) is present in an amount ranging from 35 to 75 wt. %, based upon the total weight of the A/B/A structure,
- (ii) the layer B is positioned between the first A layer and the second A layer,
- wherein the film has a gauge from 0.7 to 1.8 mils, and
- wherein the film has a water vapor transmission rate of 0.25 to 0.95 g/100 si/day.
6 more elements
Dependencies are inferred from the claim text.