Back to results
US 5,667,902 AGranted
High moisture barrier polypropylene-based film
AssigneeMobil Oil Corporation
InventorsJoseph Edward Brew, Jay Kin Keung
Life of this patent
Estimating the term…
Abstract
A polymeric film having improved moisture barrier characteristics and enhanced mechanical properties. The film has a base layer which includes a blend of a high crystallinity polypropylene having an isotactic stereoregularity greater than about 93%, a conventional isotactic polypropylene having an isotactic stereoregularity of from about 90% to about 93%, and up to about 9% by weight of a resin modifier.
Claims14
A polymeric film, comprising:
- a base layer including a blend of a first polypropylene polymer having an isotactic stereoregularity of greater than about 93%, a second polypropylene polymer having an isotactic stereoregularity of from about 90% to about 93%, and a resin modifier at a loading level up to about 9% by weight of said base layer.
Dependencies are inferred from the claim text.