Appeal No. 1997-4336
Application No. 08/279,317
Claim 20 is illustrative of the claims on appeal and is
reproduced from the amendment filed March 21, 1995 (Paper 29):
20. An improved single phase liquid spin
solution for flash-spinning plexifilamentary film-
fibril strands consisting essentially of 8 to 35
weight percent of a fiber-forming polyolefin and 65
to 92 weight percent of a hydrocarbon/co-solvent
spin liquid, the spin liquid consisting essentially
of less than 90 weight percent of a hydrocarbon spin
liquid selected from the group consisting of
isobutane, butane, cyclobutane, 2-methyl butane,
2,2-dimethyl propane, pentane, methyl cyclobutane,
cyclopentane, 2,2-dimethylbutane, 2,3-
dimethylbutane, 2-methylpentane, 3-methylpentane,
hexane, methyl cyclopentane, cyclohexane, 2-methyl
hexane, 3-methyl hexane, heptane and mixtures
thereof and greater than 10 weight percent of a co-
solvent spin liquid having lower solvent strength
than said hydrocarbon spin liquid and having an
atmospheric boiling point of less than 100EC and
selected from the group consisting of inert gases,
hydrofluorocarbons, hydrochlorofluorocarbons,
perfluorinated hydrocarbons, polar solvents and
mixtures thereof.
The subject matter on appeal relates to a single phase
liquid spin solution consisting essentially of a fiber-forming
polyolefin, a particular hydrocarbon spin liquid, and a
claim 29) in the appendix to the reply brief without
submitting an amendment pursuant to 37 CFR § 1.121(a) (1984).
(Papers 40 and 41.) The examiner then held that claim 29 is
not a claim involved in this appeal because it has not been
properly introduced into the record. (Paper 42.)
Accordingly, we will not consider claim 29 in this appeal.
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