Phosphorus-containing flame retardant agglomerates

Details Phosphorus-containing flame retardant agglomerates Phosphorus-containing flame retardant agglomerates

2007-08-21

2007-08-21

Szekely, Peter (Department: 1714)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S133000, C252S609000

Reexamination Certificate

active

10959515

ABSTRACT:
The invention relates to phosphorus-containing flame retardant agglomerates comprisinga) from 99.99 to 80% by weight of aggregates and/or primary particles composed of a phosphinic salt of the formula (I) and/or composed of a diphosphinic salt of the formula (II), and/or composed of 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, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base;m is from 1 to 4; n is from 1 to 4; x is from 1 to 4 andb) from 0.01 to 20% by weight of auxiliaries.The invention likewise relates to a process for the production of these phosphorus-containing flame retardant agglomerates, and also to polymeric compositions and moldings which comprise these phosphorus-containing flame retardant agglomerates.

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