[EN] FLAME RETARDED POLYMER COMPOSITION WITH IMPROVED THERMAL STABILITY<br/>[FR] COMPOSITION POLYMERE IGNIFUGE PRESENTANT UNE STABILITE THERMIQUE ACCRUE
申请人:SOLVAY ADVANCED POLYMERS LLC
公开号:WO2005121234A2
公开(公告)日:2005-12-22
Flame retarded and thennally stabilized polymer composition comprising (i) thermoplastic polymer and (ii) flame retardant and stabilizer combined agent comprising as component (A), a flame retardant selected from the group consisting of a phosphinic salt of the formula (I), a diphosphinic salt of the formula (II), polymers of the formula (I), polymers of the formula (II) and mixtures thereof, characterized in that: R1, R2 are identical or different and are Cl-C-alkyl, linear or branched, or aryl; R3 is C1-Cl0-alkylene, linear or branched, C6C10-arylene, alkylarylene or arylalkylene; M is Mg, Ca, Al, Sb, Sri, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, or a protonated nitrogen base; m is 1 to 4; n is 1 to 4; x is I to 4, . as component B a flame retardant synergist selected from the group of nitrogen-containing synergists and phosphorus/nitrogen-containing synergists . as component (C), a thermal stabilizer selected from the group of basic or amphoteric oxide, hydroxide, carbonate, silicate, borate, stannate, mixed oxide/hydroxide, oxide/hydroxide/carbonate, hydroxide/silicate, hydroxide/borate, or a mixture thereof . optionally as component (D), a phosphonite . optionally as component (E), an ester or salt of montan wax acid, . optionally as component (F), a N,N'-bispiperidinyl-1,3-benzenedicarboxamide and/or N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,3-benzene- dicarboxamide, said polymer composition being characterized in that the thermoplastic polymer (i) is a semi-aromatic polyamide comprising recurring units derived from a dicarboxylic acid component including at least one aliphatic dicarboxylic acid and a diamine component including at least one aromatic diamine. Shaped article comprising said composition.