Appeal No. 96-1790
Application No. 08/285,375
a flame retardant in compositions containing polycarbonate
(Answer, page 3). Accordingly, the examiner has concluded
that it would have been obvious to use tris(tribromoneopentyl)
phosphate as a flame retardant in the molding compositions of
Chung or Hongo (Id.).
Hongo teaches that “a conventional flame retardant” may
be added to the thermoplastic resin composition of his
invention (column 8, lines 9-17). Chung teaches that his
thermoplastic molding compositions may contain various
additives that are “customarily used in the art” such as
“flame retardants” (column 8, lines 46-50).
Watanabe discloses a polycarbonate based thermoplastic
molding resin that incorporates, inter alia, a phosphorus
compound to provide excellent flame-retarding effect (column
2, lines 18-26). The phosphorus compound is used in amounts
of 0.1 to 40 parts by weight and is exemplified by a listing5
of compounds including tris(tribromoneopentyl) phosphate
(column 2, lines 34-35; column 5, lines 12-36). Green teaches
5This amount overlaps the range recited for component (iv)
in appealed claim 1.
5
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