Polyethylene film having improved mechanical and barrier...

Details Polyethylene film having improved mechanical and barrier... Polyethylene film having improved mechanical and barrier...

2006-06-28

2009-12-15

Jagannathan, Vasu (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S348000, C526S352000, C525S191000, C525S240000, C428S500000, C428S515000, C428S523000, C428S098000

Reexamination Certificate

active

07632907

ABSTRACT:
A polyethylene film comprising a polymer composition having the characteristics of a total energy dart drop, measured in accordance with ASTM D4272, of greater than a bout 0.45 ft.lbf, a dart drop impact strength, measured in accordance with ASTM D1709 Method A, of greater than about 135 g, and a moisture vapor transmission rate, measured in accordance with ASTM F1249 at 100° F. and 90% relative. humidity, of less than about 0.85 g-mil/100 square inch/24 hr, wherein said ASTM tests are performed on a test specimen having a 0.8 mil thickness.

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