Flame retardant combination for thermoplastic polymers

Details Flame retardant combination for thermoplastic polymers Flame retardant combination for thermoplastic polymers

2005-02-25

2008-11-11

Szekely, Peter (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S099000, C524S100000, C524S101000, C524S133000

Reexamination Certificate

active

07449508

ABSTRACT:
The invention relates to a novel flame retardant and stabilizer combined for thermoplastic polymers, which comprises, as component A, from 20 to 80% by weight of a phosphinic salt of the formula (I) and/or of a diphosphinic salt of the formula (II), and/or polymers of these,whereR1, R2are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl;R3is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene;M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, and/or a protonated nitrogen base;m is 1 to 4; n is 1 to 4; x is 1 to 4,and comprises, as component B, from 10 to 75% by weight of a nitrogen-containing synergist, and, as component C, from 10 to 75% by weight of a phosphorus
itrogen flame retardant, the entirety of the components always being 100% by weight.

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