Flame retardant polymeric compositions

Details Flame retardant polymeric compositions Flame retardant polymeric compositions

2005-07-22

2009-11-17

Choi, Ling-Siu (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S411000

Reexamination Certificate

active

07619022

ABSTRACT:
The present invention provides flame retardant thermoplastic moulding compositions comprising:A) from 65% to 99.5% by weight (with respect of the total weight of the final composition) of a polyolefinic polymer particularly selected among polypropylene polymers;B) from 0.1% to 30% by weight (with respect of the total weight of the final composition) of a synergic mixture of an hypophosphorous acid metal salt and halogenated organic compounds;C) from 0.5% to 10% by weight (with respect of the total weight of the final composition) of a plurality of selected additives consisting of processing aids, heat and process stabilizers, UV stabilizers, antidripping agents (PTFE—Polytetrafluoroethylene), pigments, mould releasing agents, nucleating agents;D) from 0% to 50% by weight (with respect of the total weight of the final composition) of an inorganic filler.The total of the percentages by weight of components A to D is 100%.

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patent: 0442465 (1991-08-01), None
patent: WO2005/044906 (2005-05-01), None

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