Appeal No. 1997-1064
Application No. 08/391,096
Claim 1 is representative and is reproduced below:
1. A friction material comprising a fibrous
reinforcement, an inorganic filler, a friction modifier,
and an organic thermosetting resin binder, wherein said
inorganic filler contains molybdenum trioxide.
As evidence of obviousness, the examiner relies upon the
following prior art references:
Marzocchi et al. (Marzocchi) 3,967,037 Jun.
29, 1976
Nagahiro et al. (Nagahiro) 5,258,441 Nov.
2, 1993
The appealed claims stand rejected under 35 U.S.C. § 103
as unpatentable over Marzocchi in view of Nagahiro. We cannot
sustain the stated rejection.
The subject matter on appeal is directed to a friction
material comprising a fibrous reinforcement, an inorganic
filler, a friction modifier, a thermosetting resin binder,
wherein either a part or the whole of the inorganic filler is
constituted by molybdenum trioxide. The presence of
molybdenum trioxide is said to provide the claimed friction
material with good resistance to fading, the common phenomenon
of the friction coefficient lowering during braking.
Additionally, the claimed friction material is said to
experience a reduction in cracks and deterioration caused by
3
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007