Claims
- 1. A composition for stabilizing rigid halogen-containing organic polymers against the deteriorative effects of heat, ultra-violet light and weathering, said composition comprising a mixture of:
- (a) an organotin or non-tin metal salt primary heat stabilizer; and
- (b) in an amount sufficient to synergize the stabilization of the halogen-containing organic polymer but insufficient to plasticize said polymer, an ester of a polyhydrocarbyl ether glycol of the formula: ##STR36## wherein R.sup.4 is selected from the group consisting of alkylene, alkenylene, cycloalkylene and cycloalkenylene, R.sup.8 is selected from the groups consisting of alkyl, alkenyl, cycloalkyl and cycloalkenyl, R.sup.15 is ##STR37## and m is an integer of 2 or more.
- 2. A composition of claim 1 wherein the ester of a polyhydrocarbyl ether glycol is one of which R.sup.4 is alkylene and R.sup.8 is alkyl.
- 3. A composition of claim 1 wherein the ester of a polyhydrocarbyl ether glycol is an alkyl ester of a polyalkyl ether glycol selected from the group consisting of polyethylene glycol, triethylene glycol and tetraethylene glycol.
- 4. A composition of claim 2 wherein the primary heat stabilizer is an organotin compound or mixture of organotin compounds selected from the group consisting of an organotin sulfides, organotin mercaptides, organotin carboxylates and mixtures thereof.
- 5. A composition of claim 2 wherein the primary heat stabilizer a non-tin metal salt or mixtures thereof selected from the group consisting of barium, calcium, cadmium, zinc and antimony salts and mixtures thereof.
- 6. A composition of claim 4 wherein the organotin compound is selected from dimethyltin bis(isooctylthioglycolate), monomethyltin tris(isooctylthioglycolate), bis(monomethyltin di(2-mercaptoethyloleate)) sulfide, bis(dimethyltin (2-mercaptoethyloleate) sulfide, dibutyltin bis(butyl maleate) and mixtures thereof.
- 7. A composition of claim 5 wherein the non-tin metal salt is selected from the group consisting of antimony tris(isooctylthioglycolate), barium/cadmium, calcium/zinc, barium/zinc and barium/cadmium/zinc salts mixtures.
- 8. A composition of claim 7 wherein the primary heat stabilizer is a mixture of barium di(octylphenolate) and cadmium-2-ethylhexoate.
- 9. A composition of claim 2 wherein the weight ratio of the primary heat stabilizer to the ester compound is from about 1/1 to about 1/4.
- 10. A composition of claim 9 wherein the weight ratio of the primary heat stabilizer to ester compound is from about 2/3 to about 3/4.
- 11. A composition comprising a rigid halogen-containing organic polymer and, in an amount sufficient to stabilize said polymer against the deteriorative effects of heat, ultra-violet light and weathering, a stabilizer composition comprising a mixture of:
- (a) an organotin or non-tin metal salt primary heat stabilizer; and
- (b) in an amount sufficient to synergize the stabilization of the halogen-containing organic polymer but insufficient to plasticize said polymer, an ester of a polyhydrocarbyl ether glycol of the formula: ##STR38## wherein R.sup.4 is selected from the group consisting of alkylene, alkenylene, cycloalkylene and cycloalkenylene, R.sup.8 is selected from the groups consisting of alkyl, alkenyl, cycloalkyl and cycloalkenyl, R.sup.15 is ##STR39## and m is an integer of 2 or more.
- 12. A compositions according to claim 11 wherein the ester of a polyhydrocarbyl ether glycol is one in which R.sup.4 is alkylene and R.sup.8 is alkyl.
- 13. A composition according to claim 11 wherein the ester of a polyhydrocarbyl ether glycol is an alkyl ester of a polyalkyl ether glycol selected from the group consisting of polyethylene glycol, triethylene glycol and tetraethylene glycol.
- 14. A composition according to claim 11 wherein the primary heat stabilizer a non-tin metal salt or mixtures thereof selected from the group consisting of barium, calcium, cadmium, zinc and antimony salts and mixtures thereof.
- 15. A composition according to claim 11 wherein the organotin compound is selected from dimethyltin bis(isooctylthioglycolate), monomethyltin tris(isooctylthioglycolate), bis(monomethyltin di(2-mercaptoethyloleate)) sulfide, bis(dimethyltin (2-mercaptoethyloleate)) sulfide, dibutyltin bis(butyl maleate) and mixtures thereof.
- 16. A composition according to claim 11 wherein the non-tin metal salt is selected from the group consisting of antimony tris(isooctylthioglycolate), barium/cadmium, calcium/zinc, barium/zinc and barium/cadmium/zinc salts mixtures.
- 17. A composition according to claim 11 wherein the primary heat stabilizer is a mixture of barium di(octylphenolate) and cadmium-2-ethylhexoate.
- 18. A composition according to claim 11 wherein the weight ratio of the primary heat stabilizer to the ester compound is from about 1/1 to about 1/4.
- 19. A composition according to claim 11 wherein the weight ratio of the primary heat stabilizer to ester compound is from about 2/3 to about 3/4.
- 20. A composition according to claim 12 which contains from about 1.0 to about 5.0 weight % of the stabilizer composition based on the weight of the halogen-containing organic polymer.
- 21. A composition of claim 12 in which the halogen-containing organic polymer is a rigid polyvinyl chloride polymer.
- 22. A composition of claim 20 in which the halogen-containing organic polymer is a rigid polyvinyl chloride polymer.
- 23. A process for stabilizing a rigid halogen-containing organic polymer against the deteriorative effects of heat, ultra-violet light and weathering comprising admixing with said halogen-contaning organic polymer a stabilizing effective amount of:
- (a) an organotin or non-tin metal salt primary heat stabilizer; and
- (b) in an amount sufficient to synergize the stabilization of the halogen-containing organic polymer but insufficient to plasticize said polymer, an ester of a polyhydrocarbyl ether glycol of the formula: ##STR40## wherein R.sup.4 is selected from the group consisting of alkylene, alkenylene, cycloalkylene and cycloalkenylene, R.sup.8 is selected from the groups consisting of alkyl, alkenyl, cycloalkyl and cycloalkenyl, R.sup.15 is ##STR41## and m is an integer of 2 or more.
- 24. A process according to claim 23 wherein the ester of a polyhydrocarbyl ether glycol is one in which R.sup.4 is alkylene and R.sup.8 is alkyl.
Parent Case Info
This is a continuation of co-pending application Ser. No. 945,782 filed on Dec. 23, 1986, now abandoned.
US Referenced Citations (43)
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Feb 1984 |
EPX |
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JPX |
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Non-Patent Literature Citations (1)
Entry |
J. E. Todd--"Stabilization of Polymer Types", pp. 239-255 in Plasticizers, Stabilizers and Fillers, P. D. Ritchie, editor (1972). |
Continuations (1)
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Number |
Date |
Country |
Parent |
945782 |
Dec 1986 |
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