Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Reexamination Certificate
2009-06-16
2011-11-08
Ahmed, Sheeba (Department: 1787)
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
C428S500000
Reexamination Certificate
active
08053085
ABSTRACT:
A multilayer heat-shrinkable film having an uncommon but valuable combination of properties is disclosed. The film comprises a core layer of HDPE. Each skin layer comprises linear low density polyethylene (LLDPE), low density polyethylene (LDPE), or mixtures thereof. The core layer comprises greater than 80% by weight of a HDPE having an ER greater than 3.0, a MI2from 0.1 to 1.0 dg/min., and a density from 0.940 to 0.970 g/cm3. The film has good shrink in the transverse direction, good appearance, and excellent stiffness.
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Shelley Christopher
Sonnycalb Matthew A.
Ahmed Sheeba
Equistar Chemicals LP
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