Appeal No. 96-3690
Application 08/234,516
The claims on appeal are directed to a method of preventing the transmission of odors
and unpleasant flavors to a product using an oriented film which comprises a blend of
polypropylene and a polymerized polyterpene. Claims 14, 17 and 19 are representative of
the claimed subject matter and read as follows:
14. A method for preventing the transmission of odors and unpleasant
flavors to a product comprising sealing said product in an oriented film of a
blend of polypropylene and a polymerized polyterpene selected from the group
consisting of polymerized d-limonene, polymerized beta-pinene, and mixtures
thereof, said polyterpene being present in an amount sufficient to act as an
effective odor and flavor barrier when blended with polypropylene.
17. The method of claim 14 wherein said polymerized polyterpene is
polymerized d-limonene.
19. The method of claim 14 wherein said polymerized polyterpene is
a mixture of polymerized d-limonene and beta-pinene.
References of Record
The following references of record are relied upon by the examiner in support of the
rejection of the claims:
Isaka et al. (Isaka) 4,230,767 Oct. 28, 1980
Bothe 5,151,317 Sep. 29, 1992
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