Appeal 2007-3191
Application 10/482,217
The invention relates to flame retardant thermoplastic molding
compositions. Claim 1 is illustrative of the invention and is reproduced
below:
1. A thermoplastic molding composition, containing
A) from 10 to 97 wt% of
(al) at least one polyester other than polyethylene terephthalate
(PET), and
(a2) from 1 to 50 wt%, based on 100% by weight of A), of PET,
B) from 1 to 30 wt%, based on 100 wt% of B), of a flame retardant
blend of,
bl) from 20 to 99 wt% of a halogen-containing flameproofing
agent
b2) from t to 80 wt% of an antimony oxide
C) from 0.01 to 5 wt% of KH2PO4 or LiH2PO4 or a mixture thereof
D) from 0.01 to 3 wt% of an antidrip agent
E) from 0 to 70 wt% of one or more further additives selected from
the group consisting of esters or amides of saturated or unsaturated
aliphatic carboxylic acids with saturated aliphatic alcohols or amines,
elastomeric polymers, fibrous fillers, particulate fillers, stabilizers,
oxidation retarders, thermal decomposition stabilizers, UV stabilizers,
lubricants, moldrelease agents, colorants, nucleating agents, and
plasticizers, the sum of the percentages by weight of components A)
to E) being 100%.
The Examiner relies on the following prior art references to show
unpatentability:
Gallagher US 5,674,931 Oct. 7, 1997
Liao US 5,981,661 Nov. 9, 1999
Murakami EP 0 979 845 A1 Feb. 16, 2000
2
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