Phosphorus-containing flame retardant agglomerates
First Claim
1. A phosphorus-containing flame retardant agglomerate, comprising a) from 99.99 to 80% by weight of aggregates and/or primary particles comprising at least one phosphinic compound selected from the group consisting of a phosphinic salt of the formula (I), a diphosphinic salt of the formula (II), a polymer of the phosphinic salt, a polymer of the diphosphinic salt and mixtures thereof, where R1,R2 are identical or different and are C1-C6-alkyl, linear or branched, or aryl;
- R3 is 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 or a protonated nitrogen base;
m is from 1 to 4;
n is from 1 to 4;
x is from 1 to 4 and b) from 0.01 to 20% by weight of aggregates and/or primary particles of at least one auxiliary, wherein the at least one auxiliary is a polymer or copolymer based on vinylpyrrolidone, vinyl acetate, or vinylcaprolactam, epoxides, urethanes, acrylates, esters, amides, stearates, olefins, cellulose derivatives, or a mixture thereof.
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Accused Products
Abstract
The invention relates to phosphorus-containing flame retardant agglomerates comprising
a) 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,
- R1,R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl;
- R3 is 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 and
- b) 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.
82 Citations
38 Claims
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1. A phosphorus-containing flame retardant agglomerate, comprising
a) from 99.99 to 80% by weight of aggregates and/or primary particles comprising at least one phosphinic compound selected from the group consisting of a phosphinic salt of the formula (I), a diphosphinic salt of the formula (II), a polymer of the phosphinic salt, a polymer of the diphosphinic salt and mixtures thereof, where R1,R2 are identical or different and are C1-C6-alkyl, linear or branched, or aryl; -
R3 is 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 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 aggregates and/or primary particles of at least one auxiliary, wherein the at least one auxiliary is a polymer or copolymer based on vinylpyrrolidone, vinyl acetate, or vinylcaprolactam, epoxides, urethanes, acrylates, esters, amides, stearates, olefins, cellulose derivatives, or a mixture thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification