Appeal No. 1996-0708 Page 2
Application No. 08/241,888
Claims 1, 10, 14 and 23 are representative of the subject
matter on appeal and read as follows:
1. A process for producing a flame proofing or fire
retardant concentrate comprises the step of dehydrating a
mixture of hydrated sodium antimonate and at least one polymer
in a vented or vacuum apparatus at a temperature above 200°C
and below 500°.
10. A process for flame retarding a polymer or resin
composition with the steps: (1) dehydrating a mixture of an
alkyl tetrabromophthalate and/or tribromophthalate and
brominated polystyrene at a temperature between 200°C and
300°C; (2) combining the dehydrated mixture with polymer or
resin in an extruder; and (3) dispersing by means of an
extruder to produce a flame-retarded composition.
14. A process for flame proofing a glass-filled
polyethylene terephthalate or polybutylene terphthalate
compositions with steps: (1) dehydrating a mixture of an alkyl
tetrabromophthalate and/or tribormophthalate
[sic, tribromophthalate] and hydrated sodium antimonate and
brominated polystyrene at a temperature between 200° and
300°C; (2) combining the dehydrated mixture with polyethylene
terephthalate or polybutylene terephthalate and glass fiber;
and (3) blending the ingredients to prepare a flame retarded
terephthalate composition.
23. A process for producing a flame proofing or fire
retardant pellet comprising the steps: (1) mixing 10 to 90
parts by weight sodium antimonate with a water content of
about 2.9% with 10 to 90 parts by weight carrier polymer and
0.5 to 1.5 parts by weight antioxidant to prepare a
concentrate precursor; (2) processing the concentrate
precursor in a vented or vacuum apparatus at a temperature
between 200°C and 500°C to remove the majority of the water
from the concentrate precursor within at least 30 minutes; and
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