Appeal 2007-0141
Application 10/654,324
"feel" to the filaments and fabric made therefrom. Independent claims 7 and
11 are illustrative of the invention:
7. A nonwoven fabric consisting essentially of a
plurality of polymeric filaments bonded to one another to form
a nonwoven web, said filaments comprising a blend of about
0.1 to about 1.2 percent polyethylene by weight, the remaining
weight balance made up of a nylon polymer, or copolymer, or a
mixture thereof; and wherein said filaments do not degrade at a
temperature between about 180°C and about 250°C, and
therefore, said filaments can be bonded at a temperature
between about[] 180°C and about 250°C
11. A spunbonded nonwoven fabric consisting
essentially of a plurality of polymeric filaments bonded to one
another to form a single-layer nonwoven web; wherein said
filaments comprise a blend of about 0.1 percent to about 10
percent by weight nylon 6 and about 0.05 percent to about 20
percent by weight polyethylene, balance nylon 6,6; and wherein
said filaments do not degrade at a temperature between about
180°C and about 250°C, and therefore, said filaments can be
bonded at a temperature between about[] 180°C and about
250°C.
The Examiner relies on the following prior art references to show
unpatentability:
Ortega 5,431,986 Jul. 11, 1995
Lickfield 5,484,645 Jan. 16, 1996,
Definition of the word “degrade”, The American Heritage Dictionary of the
English Language (1992).
Tony Café, Physical Constants For Investigators 7 pages, T.C. Forensic.
2
Page: Previous 1 2 3 4 5 6 Next
Last modified: September 9, 2013