Interference No. 103,303
Asanuma et al.'s claims 9 and 11 depend from claim 8.
These claims read as follows:
8. A syndiotactic propylene copolymer comprising 70 to
99 mole % of propylene and 1 to 30 mole % of an olefin other
than propylene wherein in the C-NMR spectrum of said13
syndiotactic propylene copolymer, said copolymer exhibits a
ratio of the intensity of a peak at about 20.2 ppm to the sum
of the intensities of the total peaks attributable to methyl
groups in propylene units at about 19-22 ppm of 0.3 or more.
9. A syndiotactic propylene copolymer according to Claim
8, wherein said olefin other than propylene is an "-olefin
having 2 or 4 to 25 carbon atoms.
11. A syndiotactic propylene copolymer according to Claim
9, comprising 76 to 99 mole% of propylene and 1 to 24 mole% of
butene wherein in the C-NMR spectrum of said syndiotactic13
propylene copolymer, said copolymer exhibits a ratio of the
intensity of a peak at about 20.2 ppm to the sum of the
intensities of the total peaks attributable to methyl groups in
propylene units at about 19-22 of 0.5 or more.
Galimberti et al.'s claim 1 is directed to crystalline
syndiotactic copolymers of propylene and 1-butene containing 1.3
to 10 mole % of 1-butene units. Asanuma et al.'s claim 11 is
directed to a syndiotactic copolymer comprising 76 to 99 mole %
of propylene and 1 to 24 mole % of butene. The following table
compares the syndiotactic propylene butene copolymers of the
parties.
Galimberti's Claim 1 Asanuma et al.'s claim 11
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