| abstract |
A stabilizer composition having low volatility and high efficiency comprising: (i.) 25.000% to 99.997% by weight of at least one dimethyltin compound of formula (CH 3 ) 2 Sn(S(CH 2 ) m COOR 1 ) 2 wherein R 1 is a linear, branched or cyclic C 10 -C 20 alkyl group and m is 1 or 2, optionally containing unsaturations in the form of double or triple bonds; (ii.) 0.001% to 50.000% by weight of at least one mono-methyltin compound of formula CH 3 Sn(S(CH2) n COOR 2 ) 3 wherein R 2 is a linear, branched or cyclic C 10 -C 20 alkyl group and n is 1 or 2, optionally containing unsaturations in the form of double or triple bonds; (iii.) 0.001% to 10.000% by weight of at least one tri-methyltin compound of formula (CH 3 ) 3 Sn(S(CH 2)p COOR 3 ) wherein R 3 is a linear, branched or cyclic C 10 -C 20 alkyl group and p is 1 or 2, optionally containing unsaturations in the form of double or triple bonds; and (iv.) 0.001% to 15.000% by weight of at least one thioester of formula HS(CH 2 ) q COOR 4 wherein R 4 is a linear, branched or cyclic C 10 -C 20 alkyl group and q is 1 or 2, optionally containing unsaturations in the form of double or triple bonds. |