Organohalide polymers stabilized with an organotin compound and an ortho mercapto phenol compound

A stabilizer composition comprising:

• A. an organic tin compound or mixture of organic tin compounds selected from compounds having the formulas:
• ##STR37## X and X.sup.1 are the same or different and are selected from --SR.sup.2, Cl, Br, I, ##STR38## and O--R.sup.8 with the proviso that in formula (III) when z=1 and in formulas (I) and (II) at least one X or X.sup.1 is --SR.sup.2 ;
• ##STR39## W and W.sup.1 are the same or different and are oxygen or sulfur;
• R and R.sup.1 are the same or different and are selected from alkyl, aryl, alkenyl, aralkyl, alkaryl, cycloalkyl, cycloalkenyl, ##STR40## R.sup.2 is alkyl, alkenyl, aryl, hydroxy-substituted aryl, aralkyl, cycloalkyl, cycloalkenyl, ##STR41## R.sup.3 is alkylene of at least 2 carbon atoms, arylene, alkenylene of at least 2 carbon atoms, cycloalkylene, or cycloalkenylene;
• R.sup.4 is alkylene, arylene, alkenylene of at least 2 carbon atoms, cycloalkylene, or cycloalkenylene;
• R.sup.5 is R.sup.3 ;
• R.sup.6 is nothing or R.sup.4 ;
• R.sup.7 is --H or R.sup.8 ;
• R.sup.8 is alkyl, alkenyl, aryl, aralkyl, alkaryl, cycloalkyl, or cycloalkenyl;
• R.sup.9 is C.sub.1 to C.sub.4 alkylene;
• R.sup.12 is --H or a monovalent C.sub.1 to C.sub.20 hydrocarbon radical;
• R.sup.13 and R.sup.21 are the same or different and are each C.sub.1 to C.sub.20 alkyl or C.sub.1 to C.sub.20 alkoxy;
• R.sup.14 is --H, aryl or C.sub.1 to C.sub.18 alkyl;
• ##STR42## i=0 or an integer from 1 to 6 inclusive;
• n=0, 1 or 2, n'=0, 1 or 2 and p=1 or 2 with the proviso that n+n'=1 or 2 and n+n'+p=3;
• a=0, 1 or 2, b=0, 1 or 2, q=1 to 5, c=1, 2 or 3 and d=0, 1 or 2 with the proviso that a+b=2 and c+d=3;
• v=an integer from 1 to 8 inclusive;
• and
• w=0, 1 or 2, x=0 or 1, y=1 or 2, z=0 or 1 with the proviso that when x=0 and w=1 or 2 then y=1 and z=1 when x=1 then y=1, z=0 and w=1, when w=2 then x=0, y=1 and z=1, and when w=0 then x=0, y=1, z=1 and Y is --W--R.sup.3 --W.sup.1 -- or ##STR43## and B. an organic compound or mixture of organic compounds selected from compounds having the formulas:
• ##STR44## wherein A is nothing, --OH or --SH,
• B is nothing, --OH or --SH
• D is --H, --SH, --OH or R.sup.26
• E is --H, --OH, --SH or R.sup.26
• F is --H, --SH, --OH or R.sup.26
• F' is --H, --OH, --SH or R.sup.26
• G is nothing, --OH or --SH
• G' is nothing, --SH or --OH
• K is --H, --SH, --OH or R.sup.23
• K' is --H, --OH, --SH or R.sup.23
• N is --H, --SH, --OH or R.sup.23
• P is --H, --SH, --OH or R.sup.23
• Q is --H, --SH, --OH or R.sup.23
• R.sup.20 is nothing, alkyl, aryl, alkenyl, alkaryl, cycloalkyl, alkoxy or halogen,
• R.sup.26 is alkyl, alkenyl or halogen
• R.sup.22 is alkyl, alkenyl or halogen
• R.sup.23 is alkyl, alkenyl or halogen
• R.sup.24 is alkylene or alkenylene
• R.sup.25 is alkyl, alkenyl, halogen, --SH or --OH
• e is 0 to 2
• j is 0 to 2
• f is 0 to 3
• s is 0 to 3
• g is 0 to 3
• h is 1 to 4
• k is 0 to 3
• h+k is 2 to 4
• e+j+f is 0 to 4
• with the proviso that (1) in formula (V) two of groups D, E, F and F' must be an OH group and an SH group bonded directly to adjacent ring carbon atoms, and (2) in formula (VI) two of groups K, K', N, P and Q must be an OH group and an SH group bonded directly to adjacent ring carbon atoms.