Appeal No. 1998-1790
Application No. 08/711,134
alkylene-bridged diphosphate compound for viscosity reduction
thereof.
The examiner relies upon the following references as
evidence of obviousness:
Fesman 4,433,071 Feb. 21, 1984
Buszard et al. (Buszard) 4,565,833 Jan. 21, 1986
Duncan et al. (Duncan) 4,681,902 Jul. 21, 1987
Bright et al. (Bright) 5,041,596 Aug. 20, 1991
Stone 5,086,082 Feb. 4, 1992
Asahi Denka Kogyo K.K. JP 40342/74 Apr. 28, 1974
(Japanese Patent Publication)
Appellants’ claimed invention is directed to a fluid flame
retardant composition comprising a viscous flame retardant, such
as polybrominated diphenyl oxide, and an alkylene-bridged
diphosphate. The diphosphate reduces the viscosity of the
viscous flame retardant.
As acknowledged by appellants at page 1 of their principal
brief, the present application is related to U.S. Serial No.
08/586,442. An appeal was taken in the related application and,
in a decision dated April 20, 2000, a merits panel of this Board
sustained the examiner’s rejections of the appealed claims under
35 U.S.C. § 103 over the same prior art presently applied by the
examiner (Appeal No. 1997-3587).
Appealed claims 1-9 stand rejected under 35 U.S.C. 103 as
-2–
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