Organotin mercaptoalkanol esters and alkoxides containing sulfide groups

Claim 2

An organotin compound containing (a) at least one tin atom having one or two hydrocarbyl, carboalkoxyhydrocarbyl or ketohydrocarbyl groups bonded to tin through carbon, wherein any alkyl portion of said groups contains from 1 to 20 carbon atoms; (b) at least one mercaptoalkanol residue bonded to tin through the sulfur atom of said residue, the oxygen atom of said residue being bonded to hydrogen, to a hydrocarbyl group, to the residue obtained by removal of the hydroxyl portion of the one carboxy (--COOH) group of a polycarboxylic or hydroxypolycarboxylic acid, or to an element selected from the group consisting of aluminum, boron, phosphorus, silicon and titanium, with the proviso that any polycarboxylic acid is bonded to at least two mercaptoalkanol residues through an oxygen atom of said residue and a carboxyl group of said polycarboxylic acid; (c) at least one oxygen or sulfur atom, said atom being bonded exclusively to tin or to tin and hydrogen, or at least one polysulfide group that is bonded exclusively to tin; (d) up to 52% by weight of tin and (e) up to 63% by weight of sulfur.

Claim 3

An organotin compound according to claim 1 wherein said compound exhibits a general formula selected from the group consisting of ##STR48## wherein the various terms appearing in said formula are defined as follows: ______________________________________ Term Definition ______________________________________ R.sub.1 Hydrocarbyl, carboalkoxyhydrocarbyl or keto- hyrocarbyl wherein any alkyl residue contains from 1 to 20 carbon atoms; if more than one R.sub.1 is attached to tin, additional R.sub.1 can be halogen, - OH, SH or residue obtained by removal of active hydrogen from mercaptoacid ester, mercaptan, mercaptoalkanol, monocarboxylic acid or partial ester of a dicarboxylic acid; R.sub.2 Alkylene or arylene group that optionally contains substituent OX whereas X is hydrogen, aluminum, phosphorus, boron, silicon or titanium; R.sub.3 R.sub.4, SR.sub.2 OZ or selected from same group as R.sub.1 R.sub.4 AR.sub.5, halogen, pseudo-halogen or selected from same group as R.sub.1 ; R.sub.5 R.sub.10 COOR.sub.11 when A is sulfur, ##STR49## SnR.sub.13 R.sub.14 R.sub.15 or hydrocarbyl selected from same group as R.sub.1 ; R.sub.6 Alkylene containing from 2 to 20 carbon atoms; R.sub.7 Residue obtained by removal of the hydrogen atom from at least two hydroxyl groups of a polyfunctional alcohol containing from 2 to 4 hydroxyl groups; R.sub.10 Alkylene or substituted alkylene containing from 1 to 20 carbons wherein substituent is halogen, hydroxyl or COOR.sub.11 ; R.sub.13, R.sub.14, Hydrocarbyl selected from same group as R.sub.1 ; R.sub.15 A Oxygen or sulfur, ##STR50## two carbonyl groups or a di- or polyvalent hydrocarbon residue (CH.sub.2 ).sub.r (r being defined as an integer from 1 to 18), an unsaturated hydrocarbon group, the residue of a di- or polycarboxylic acid or two alkylene groups separated by from 1 to 4 sulfur atoms; -M.sub.1 Aluminum, boron, phosphorus, silicon or titanium E D or M.sub.1 ; a An integer from 1 to 4; b An integer from 2 to 4; c 1 when A is oxygen, 1-10 when a is sulfur; d and e Each 1 or 2; f 1 or 2; g 1, 2, 3 or 4; Z ##STR51## represents an integer from C to 2 ______________________________________

Claim 4

An organotin compound according to claim 2 wherein R 2 is alkylene and contains from 2 to 6 carbon atoms.

Claim 5

An organotin compound according to claim 2 wherein A is sulfur.

Claim 6

An organotin compound according to claim 2 wherein R 1 is alkyl and contains from 1 to 8 carbon atoms.

Claim 7

An organotin compound according to claim 2 wherein a is 2 or 3 and Z represents the residue of a dimeric, trimeric or tetrameric fatty acid containing 36 to about 72 carbon atoms.

Claim 8

An organotin compound according to claim 2 wherein D is ##STR52## and Q represents an alkylene group containing from 4 to 7 carbon atoms.

Claim 9

An organotin compound according to claim 2 wherein M 1 is selected from the group consisting of the elements aluminum, boron, phosphorus, silicon and titanium, g is 3 when M 1 represents aluminum, boron, or phosphorus and g is 4 when M 1 represents silicon or titanium.

Claim 10

An organotin compound according to claim 2 wherein M 1 is ##STR53## and g is 2.

Claim 11

An organotin compound according to claim 2 wherein said compound is selected from the group consisting of: bis[monobutyltin di(2-mercaptoethyl)hexatriacontanedioic acid]sulfide tetra(monobutylmonothiotin-2-mercaptoethyl)orthosilicate bis(monobutylmonothiotin-2-mercaptoethyl)azelate bis(monobutylmonothiotin-2-mercaptoethyl)adipate/glutarate tetra(monobutylmonothiotin-2-mercaptoethyl)titanate bis[monobutyltin(2-hydroxyethylmercaptide)(2-mercaptoethyl)]azelate sulfide bis(monobutyldithiotin-2-mercaptoethyl)azelate bis[monobutyltin(isooctylmercaptoacetate)(2-mercaptoethyl)]azelate sulfide tris(monobutylmonothiotin-2-mercaptoethyl)phosphite tri(monobutylmonothiotin-2-mercaptoethyl)aluminate [monobutyltin(n-dodecylmercaptide)(2-mercaptoethyl-)][monobutyltin(2-hydroxyethylmercaptide)(2-mercaptoethyl-)]azelate sulfide bis[monobutyltin(n-dodecylmercaptide)(2-mercaptoethyl)]azelate sulfide [monobutyltin-di(2-mercaptoethyl)azelate][dibutyltin-2-hydroxyethylmercaptide]sulfide [monobutyltin(butyl maleate)(2-mercaptoethyl-)][monobutyltin(2-hydroxyethylmercaptide)(2-mercaptoethyl-)]azelate sulfide bis[monobutyltin(butylmaleate)(2-mercaptoethyl)]azeate sulfide tris(monobutylmonothiotin-2-mercaptoethyl)borate bis(monobutylmonothiotin-2-mercaptoethyl)diphenylsilane bis(monobutylmonothiotin-2-mercaptoethyl)azelate ##STR54##

Claim 12

A heat stabilized vinyl chloride polymer composition comprising a vinyl chloride polymer and an amount of an organotin compound sufficient to impart resistance to heat-induced degradation to said vinyl chloride polymer wherein the organotin compound contains (a) at least one tin atom having one or two hydrocarbyl, carboalkoxyhydrocarbyl or ketohydrocarbyl groups, bonded to tin through carbon, wherein any alkyl portion of said groups contains from 1 to 20 carbon atoms; (b) at least one mercaptoalkanol residue bonded to tin through the sulfur atom of said residue, the oxygen atom of said residue being bonded to hydrogen, to a hydrocarbyl group, to the residue obtained by removal of the hydroxyl portion of one carboxy (-COOH) group of a polycarboxylic or hydroxypolycarboxylic acid, or to an element selected from the group consisting of aluminum, boron, phosphorus, silicon and titanium; (c) at least one oxygen or sulfur atom, said atom being bonded exclusively to tin or to tin and hydrogen, or at least one polysulfide group that is bonded exclusively to tin; (d) up to 52% by weight of tin and (e) up to 63% by weight of sulfur.

Claim 13

A heat stabilized vinyl chloride polymer composition comprising a vinyl chloride polymer and an amount of an organotin compound sufficient to impart resistance to heat-induced degradation to said vinyl chloride polymer wherein the organotin compound contains (a) at least one tin atom having one or two hydrocarbyl, carboalkoxyhydrocarbyl or ketohydrocarbyl groups, bonded to tin through carbon, wherein any alkyl portion of said groups contains from 1 to 20 carbon atoms; (b) at least one mercaptoalkanol residue bonded to tin through the sulfur atom of said residue, the oxygen atom of said residue being bonded to hydrogen, to a hydrocarbyl group, to the residue obtained by removal of the hydroxyl portion of one carboxy (-COOH) group of a polycarboxylic or hydroxypolycarboxylic acid, or to an element selected from the group consisting of aluminum, boron, phosphorus, silicon and titanium; (c) at least one oxygen or sulfur atom, said atom being bonded exclusively to tin or to tin and hydrogen, or at least one polysulfide group that is bonded exclusively to tin; (d) up to 52% by weight of tin and (e) up to 63% by weight of sulfur.

Claim 14

A vinyl chloride polymer composition according to claim 11 wherein said organotin compound exhibits a formula selected from the group consisting of ##STR55## wherein the various terms appearing in said formula are defined as follows: ______________________________________ Term Definition ______________________________________ R.sub.1 Hydrocarbyl, carboalkoxyhydrocarbyl or keto- hydrocarbyl wherein any alkyl residue contains from 1 to 20 carbon atoms; if more than one R.sub.1 is attached to tin, additional R.sub.1 can be halogen, OH, SH or residue obtained by removal of active hydrogen from mercaptoacid ester, mercaptan, mercaptoalkanol, monocarboxylic acid or partial ester of a dicarboxylic acid; R.sub.2 Alkylene or arylene group that optionally contains substituent OX whereas X is hydrogen, aluminum, phosphorus, boron, silicon or titanium; R.sub.3 R.sub.4, SR.sub.2 OZ or selected from same group as R.sub.1 R.sub.4 AR.sub.5, halogen, pseudo-halogen or selected from same group as R.sub.1 ; R.sub.5 R.sub.10 COOR.sub.11 when A is sulfur, ##STR56## SnR.sub.13 R.sub.14 R.sub.15 or hydrocarbyl selected from same group as R.sub.1 ; R.sub.6 Alkylene containing from 2 to 20 carbon atoms; R.sub.7 Residue obtained by removal of the hydrogen atom from at least two hydroxyl groups of a polyfunctional alcohol containing from 2 to 4 hydroxyl groups; R.sub.10 Alkylene or substituted alkylene containing from 1 to 20 carbons wherein substituent is halogen, hydroxyl or COOR.sub.11 ; R.sub.11, R.sub.12 Hydrocarbyl groups individually selected from same group as R.sub.1, and alkenyl containing from 2 to 20 carbon atoms; R.sub.13, R.sub.14, Hydrocarbyl selected from same group as R.sub.1 ; R.sub.15 A Oxygen or sulfur; D ##STR57## two carbonyl groups or a di- or polyvalent hydrocarbon residue (CH.sub.2).sub.r (r being defined as an integer from 1 to 18), an unsaturated hydrocarbon group, the resiude of a di- or polycarboxylic acid or two alkylene groups separated by from 1 to 4 sulfur atoms; M.sub.1 Aluminum, boron, phosphorus, silicon or titanium; E D or M.sub.1 ; a An integer from 1 to 4; b An integer from 2 to 4; c 1 when A is oxygen, 1-10 when A is sulfur; d and e Each 1 or 2; f 1 or 2; g 1, 2, 3 or 4; Z ##STR58## an integer from 0 to 2. ______________________________________

Claim 15

A vinyl chloride polymer composition according to claim 12 wherein R 2 is alkylene and contains from 2 to 6 carbon atoms.

Claim 16

A vinyl chloride polymer composition according to claim 12 wherein A is sulfur.

Claim 17

A vinyl chloride polymer composition according to claim 12 wherein R 1 is alkyl and contains from 1 to 8 carbon atoms.

Claim 18

A vinyl chloride polymer composition according to claim 12 wherein a is 2 or 3 and Z represents the residue of a dimeric, trimeric or tetrameric fatty acid containing 36 to about 72 carbon atoms.

Claim 19

A vinyl chloride polymer composition according to claim 12 wherein D is ##STR59## and Q represents an alkylene group containing from 4 to 7 carbon atoms.

Claim 20

A vinyl chloride polymer composition according to claim 12 wherein M 1 is selected from the group consisting of the elements aluminum, boron, phosphorus, silicon and titanium, g is 3 when M 1 represents aluminum, boron, or phosphorus and g is 4 when M 1 represents silicon or titanium.

Claim 21

A vinyl chloride polymer composition according to claim 12 wherein M 1 is ##STR60## and g is 2.

Claim 22

A vinyl chloride polymer composition according to claim 12 wherein said organotin compound is selected from the group consisting of: bis[monobutyltin di(2-mercaptoethyl)hextriacontanedioic acid]sulfide tetra(monobutylmonothiotin-2-mercaptoethyl)orthosilicate bis(monobutylmonothiotin-2-mercaptoethyl)azelate bis(monobutylmonothiotin-2-mercaptoethyl)adipate/glutarate tetra(monobutylmonothiotin-2-mercaptoethyl)titanate bis[monobutyltin(2-hydroxyethylmercaptide)(2-mercaptoethyl)]azelate sulfide bis(monobutyldithiotin-2-mercaptoethyl)azelate bis[monobutyltin(isooctylmercaptoacetate)(2-mercaptoethyl)]azelate sulfide tris(monobutylmonothiotin-2-mercaptoethyl)phosphite tri(monobutylmonothiotin-2-mercaptoethyl)aluminate [monobutyltin(n-dodecylmercaptide)(2-mercaptoethyl-)][monobutyltin(2-hydroxyethylmercaptide)(2-mercaptoethyl-)]azelate sulfide bis[monobutyltin(n-dodecylmercaptide)(2-mercaptoethyl)]azelate sulfide [monobutyltin-di(2-mercaptoethyl)azelate][dibutyltin-2-hydroxyethylmercaptide]sulfide [monobutyltin(butyl maleate)(2-mercaptoethyl-)][monobutyltin(2-hydroxyethylmercaptide)(2-mercaptoethyl-)]azelate sulfide bis[monobutyltin(butylmaleate)(2-mercaptoethyl)]azelate sulfide tris(monobutylmonothiotin-2-mercaptoethyl)borate bis(monobutylmonothiotin-2-mercaptoethyl)diphenylsilane bis(monobutylmonothiotin-2-mercaptoethyl)azelate ##STR61##