Appeal No. 1997-1135
Application 08/375,196
THE INVENTION
Appellant’s claimed invention is directed toward a method
for making a nonwoven fabric. Claim 1 is illustrative:
1. A high strength autogenously bonded nonwoven fabric
comprising single polymer conjugate fibers having at least two
component compositions, said conjugate fibers having a sheath-
core configuration, all of said component compositions
consisting essentially of one thermoplastic polymer selected
from the group consisting of semicrystalline thermoplastic
polymers, crystalline thermoplastic polymers and blends
thereof, wherein said component compositions are processed
with an identical processing condition or substantially
identical processing conditions to form said fibers such that
the two component compositions have a melt flow rate
difference of equal to or less than about 10 g/10 minute.[1]
THE REFERENCES
Keuchel et al. (Keuchel) 3,780,149 Dec. 18, 1973
Carey, Jr. 4,551,378 Nov. 5, 1985
Shiba et al. (Shiba) 5,318,552 Jun. 7, 1994
(effective filing date Nov. 10,
1987)
THE REJECTIONS
Claims 1, 3-9, 11-13 and 24-27 stand rejected under 35
U.S.C. § 112, second paragraph, as being indefinite for
1 It appears that “at least” should be inserted before the
last appearance of “two component compositions” in this claim.
2
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