Appeal No. 2001-1234
Application 08/658,983
THE REJECTION
Claims 26, 27, 29-34, 43-48 and 50 stand rejected under
35 U.S.C. § 103 as being unpatentable over Ransford in view of
GB ‘524.1
OPINION
We reverse the aforementioned rejection.
Ransford discloses a process for making decabromodiphenyl
alkanes, the preferred decabromodiphenyl alkanes including
decabromodiphenylethane (col. 1, lines 26-49). The process
includes charging a reaction vessel with a bromination catalyst
and liquid elemental bromine, feeding diphenylalkane in molten or
solute form, at about 0.055 to about 0.033 moles of
diphenylalkane per mole of elemental bromine initially charged,
into the reaction vessel at a point below the level of the
charged liquid bromine, and maintaining the reaction mass at
about 30 to about 80ēC (col. 1, lines 26-37; col. 2, lines 7-8).
1 A rejection of claims 26, 27, 29-34, 43-48 and 50 under
35 U.S.C. § 103 over GB ‘524 in view of U.S. 5,055,235 to
Brackenridge et al. is withdrawn in the examiner’s answer
(page 4).
3
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