Abstract Mixture consisting of an organo-tin alcoholate of the formula (I) ##STR1## and of an organo-tin mercaptide of the formula (II) or (III) ##STR2## which mixture may additionally contain an organo tin carboxylate of the formula (IV) or (V) ##STR3## in which formulae R 1 is C 1 -C 12 alkyl, R 2 is C 10 -C 30 alkyl, phenyl which is substituted by one or two C 8 -C 12 alkyl groups, R 3 has the meaning assigned to R 2 or is the --Sn(OR 2 )(R 1 ) 2 group, wherein R 1 and R 2 are as defined above, X is sulfur or oxygen, R 4 is the --S--CH 2 CH 2 --COOR 5 or --X--Sn(R 1 ) n (S--CH 2 CH 2 --COOR 5 ) 3-n group, in which R 1 and X are as defined above, R 5 is C 8 -C 14 alkyl, n is 1 or 2, and R 6 is c 10 -C 30 alkyl, the weight ratio of I:II or I:III being in the range from 9:1 to 1:9. These mixtures are stabilizers for chlorinated polymers and also activators for the manufacture of foamed plastics.
A mixture comprising an organo-tin mercaptide of the formula II ##STR10## and an organo-tin carboxylate of the formula V ##STR11## wherein R 1 is C 1 -C 12 alkyl, X is sulfur or oxygen, R 4 is --S--CH 2 CH 2 --COOR 5 or --X--Sn(R 1 ) n (S--CH 2 CH 2 --COOR 5 ) 3-n , in which R 1 and X are as defined above, R 5 is C 8 -C 14 alkyl, n is 1 or 2, and R 6 is C 10 -C 30 alkyl, and the weight ratio of II:V is in the range from 9:1 to 1:9.
Claim 2
Dependent Claim
103 words
A mixture comprising an organo-tin mercaptide of the formula II ##STR10## and an organo-tin carboxylate of the formula V ##STR11## wherein R 1 is C 1 -C 12 alkyl, X is sulfur or oxygen, R 4 is --S--CH 2 CH 2 --COOR 5 or --X--Sn(R 1 ) n (S--CH 2 CH 2 --COOR 5 ) 3-n , in which R 1 and X are as defined above, R 5 is C 8 -C 14 alkyl, n is 1 or 2, and R 6 is C 10 -C 30 alkyl, and the weight ratio of II:V is in the range from 9:1 to 1:9.
Claim 3
Dependent Claim
35 words
A mixture according to claim 1, wherein R 4 in the compound of the formula (II) is the --S--CH 2 CH 2 --COOR 5 group, in which R 5 is C 8 -C 14 alkyl.
Claim 4
Dependent Claim
11 words
A mixture according to claim 2, wherein R 5 is 2-ethylhexyl.
Claim 5
Dependent Claim
11 words
A mixture according to claim 1, wherein R 6 is n-undecyl.
Claim 6
Dependent Claim
31 words
A method for stabilizing chlorinated polymers against the degradative effective of light and heat which comprises incorporating into said polymer an effective stabilizing amount of a mixture according to claim 1.
Claim 7
Dependent Claim
11 words
The method of claim 5, wherein said polymer is rigid polyvinylchloride.
Claim 8
Dependent Claim
15 words
A chlorinated polymer containing an effective stabilizing amount of a mixture according to claim 1.
Claim 9
Dependent Claim
17 words
A foamed plastics material containing an effective foam activating amount of a mixture according to claim 1.