Claims
- 1. A compound of the formula ##STR8## wherein R.sub.1 and R.sub.2 independently of each other are straight- or branched-chain alkyl having from 1 to 6 carbon atoms, or together with the carbon to which they are bound form a cyclopentyl or cyclohexyl ring, which is unsubstituted or substituted with a methyl group,
- R.sub.3 is hydrogen, alkyl having 1 to 12 carbon atoms, .beta.-methoxyethyl, alkenyl having 3 to 4 carbon atoms, propargyl, benzyl or alkyl substituted benzyl,
- R.sub.4 is straight- or branched-chain alkylene having 1 to 4 carbon atoms,
- M is a metal selected from the group consisting of barium, magnesium, calcium, sodium, copper, and potassium, and the value of z is the same as the available valence of M.
- 2. A compound according to claim 1 wherein R.sub.1 and R.sub.2 are each methyl.
- 3. A compound according to claim 2 wherein
- R.sub.4 is straight-chain alkylene having 1 to 4 carbon atoms, and
- M is barium, calcium or magnesium.
- 4. A compound according to claim 3 wherein R.sub.3 is hydrogen.
- 5. A compound according to claim 3 wherein R.sub.3 is methyl.
- 6. A compound according to claim 3 where in R.sub.4 is straight-chain alkylene having 4 carbon atoms.
- 7. A compound according to claim 2 which is the copper (II) complex of O-mono(2,2,6,6-tetramethylpiperidin-4-ol)-succinate.
- 8. A compound according to claim 2 which is potassium[O-mono-(2,2,6,6-tetramethyl-piperidin-4-ol)succinate].
- 9. A compound according to claim 3 which is barium bis[O-mono(2,2,6,6-tetramethyl-piperidin-4-ol) glutarate].
- 10. A compound according to claim 3 which is calcium bis[O-mono(2,2,6,6-tetramethyl-piperidin-4-ol) glutarate].
- 11. A compound according to claim 3 which is magnesium bis[O-mono(2,2,6,6-tetramethyl-piperidin-4-ol) glutarate].
- 12. A composition of matter stabilized against ultraviolet deterioration which comprises a synthetic organic polymer normally subject to ultraviolet deterioration containing from 0.005 to 5% of the stabilizing compound of claim 1.
- 13. A composition of claim 12 which contains additionally 0.005 to 5% of a phenolic antioxidant.
- 14. A composition of claim 12 which contains additionally 0.005 to 5% of an organic phosphite.
- 15. A composition of claim 12 which contains additionally
- a. 0.005 to 5% of a phenolic antioxidant and
- b. a stabilizing amount of a UV absorber selected from the group consisting of hydroxy benzophenones, hydroxyphenyl benzotriazoles, aromatic esters of salicyclic acid and nickel amine complexes of thio bis-phenols.
- 16. A composition of claim 12 wherein the synthetic organic polymer is a polyolefin.
- 17. A composition of claim 13 which contains additionally 0.01 to 2% of a compound of the formula ##STR9## wherein R is an alkyl group having from 6 to 24 carbon atoms and n is an integer from 1 to 6.
- 18. A composition of claim 16 wherein the polyolefin is polypropylene.
- 19. A composition of claim 16 which contains additionally 0.005 to 5% of a phenolic antioxidant selected from n-octadecyl 3-(3,5-di-t-butyl-4-hydroxyphenyl) propionate, di-n-octadecyl(3,5-di-t-butyl--4-hydroxybenzyl)phosphonate, pentaerythritoltetrakis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate], and tris(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate.
- 20. A composition of claim 16 which contains additionally
- 0.005 to 5% of a phenolic antioxidant selected from n-octadecyl 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, di-n-octadecyl(3,5-di-t-butyl-4-hydroxybenzyl)phosphonate, pentaerythritol-tetrakis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate], and tris-(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate and
- b. a stabilizing amount of a UV absorber selected from 2(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole, 2(2'-hydroxy-5'-methylphenyl)-benzotriazole, and 2-hydroxy-4-n-octoxybenzophenone.
- 21. A composition of claim 16 wherein the stabilizing compound is the copper (II) complex of O-mono (2,2,6,6-tetramethyl-piperidin-4-ol)-succinate.
- 22. A composition of claim 16 wherein the stabilizing compound is potassium [O-mono-(2,2,6,6-tetramethyl-piperidin-4-ol)succinate].
- 23. A composition of claim 16 wherein the stabilizing compound is barium bis[O-mono(2,2,6,6-tetramethyl-piperidin-4-ol) glutarate].
- 24. A composition of claim 16 wherein the stabilizing compound is calcium bis[O-mono(2,2,6,6-tetramethyl-piperidine-4-ol) glutarate].
- 25. A composition of claim 16 wherein the stabilizing compound is magnesium bis[O-mono(2,2,6,6-tetramethyl-piperidin-4-ol)glurate].
RELATED APPLICATION
This application is a continuation-in-part of copending application Ser. No. 429,237, filed Dec. 28, 1973, now U.S. Pat. No. 3,939,163 issued Feb. 7, 1976.
US Referenced Citations (6)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
429237 |
Dec 1973 |
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