Appeal No. 1996-0328
Application 08/060,891
ethylene polymers are suitable for the formation of films which exhibit improved elongation at break and
resistance to tearing.29
e. The Beran patent
Beran describes the production of copolymers of ethylene and “at least one” C to C alpha30
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olefin polymers using a supported vanadium catalyst. The ethylene copolymers are described to be31
suitable for a variety of applications including blow moldings and films. 32
f. The Karol patent
Karol describes the production of copolymers of ethylene and “at least one” C to C alpha olefin. 33
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3 3 34
The ethylene copolymers are described as having densities ranging from 0.86 g/cm up to 0.91 g/cm .
The ethylene copolymers are said to be suitable for the formation of tubing, hoses and other applications
where toughness and flexibility are desirable.35
g. The Durand patent
Durand describes terpolymers of (a) ethylene, (b) propylene and /or 1-butene and (c) a C to C 5 8
alpha-olefin and the process for their preparation. The ethylene and alpha olefin terpolymers are36
29Machon, page 5, lines 6-28.
30We interpret the term “copolymer” to be polymers formed from two or more monomers.
31Beran, column 2, lines 37-48.
32Beran, column 3, lines 26-29.
33Karol, page 5, lines 25-32.
34Karol, page 8, line 25 to page 9, line 3.
35Karol, page 1, line 30 to page 2, line 2.
36Durand, column 1, lines 9-14.
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