Appeal No. 1996-0328
Application 08/060,891
18. A film, as defined in claim 1, wherein said terpolymer has a molecular weight
distribution of at least 10.
19. A film, as defined in claim 1, wherein said terpolymer has a molecular weight
distribution of at least 12.
21. A film, as defined in claim 14, wherein said terpolymer has a melt flow ratio of at
least 65.
22. A film, as defined in claim 1, wherein said terpolymer has a melt index of less than
about 1.0 dg/min, at least 85 percent polymer units derived from ethylene, and has
a molecular weight distribution greater than 10.
36. A film, as defined in claim 1, wherein said film has a puncture resistance greater
than the puncture resistance of similarly made films comprising a two monomer
component derived copolymer of ethylene and either 1-butene or 1-hexene.
B. Rejections under 35 U.S.C. § 103
1. The Prior Art
a. The Steinert patent
Steinert describes terpolymers of a ethylene, butene-1 and hexene-1. The terpolymer consist of6
87 to 97 wt % of ethylene and are said to have a melt index of 0.5 to 1.0. Steinert examples 5 and 107
describe a terpolymer of ethylene, hexene-1 and butene-1 that have, respectively, densities of 0.907 g/cm3
6Steinert, page 3, lines 36-37.
7Steinert, page 3, lines 36-37 and 576-59.
4
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