23-05-2019 дата публикации
Номер: US20190153197A1
A novel flame retardant-stabilizer combination for thermoplastic polymers, comprising as component A 20 to 99% by weight of a dialkylphosphinic salt of the formula (I) and/or of a diphosphinic salt of the formula (II) and/or polymers thereof in which R, Rare the same or different and are each C-C-alkyl, linear or branched; Ris C-C-alkylene, linear or branched, C-C-arylene, C-C-alkylarylene or C-C-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, as component B 1 to 80% by weight of a salt of the phosphorous acid with the general formula (III) [HP(═O)O]M (III) in which M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na and/or K and m is 1 to 4, as component C 0 to 30% by weight of a nitrogen-containing synergist and/or of a phosphorus/nitrogen flame retardant, as component D 0 to 10% by weight of a zinc salt and/or of a basic or amphoteric oxide, hydroxide, carbonate, silicate, borate, stannate, mixed oxide hydroxide, oxide hydroxide carbonate, hydroxide silicate and/or hydroxide borate and/or mixtures of these substances, as component E 0 to 3% by weight of a phosphonite and/or of a mixture of a phosphonite and a phosphite, and as component F 0 to 3% by weight of an ester and/or salt of long-chain aliphatic carboxylic acids (fatty acids) which typically have chain lengths of Cto C, where the sum of the components is always 100% by weight. 2. The flame retardant-stabilizer combination as claimed in claim 1 , wherein R claim 1 , Rare the same or different and are each methyl claim 1 , ethyl claim 1 , n-propyl claim 1 , isopropyl claim 1 , n-butyl claim 1 , tert-butyl claim 1 , n-pentyl and/or phenyl.3. The flame retardant-stabilizer combination as claimed in claim 1 , wherein Ris methylene claim 1 , ethylene claim 1 , n-propylene claim 1 , isopropylene claim 1 , n-butylene claim 1 , tert-butylene claim 1 , n-pentylene claim 1 , n-octylene or n- ...
Подробнее