Claims
- 1. A composition of matter comprising a synthetic organic polymer normally subject to ultraviolet deterioration stabilized with 0.005 to 5% of a stabilizer having 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 5 to 8 carbon atoms, or the group (CH.sub.2).sub.m Y(CH.sub.2).sub.n wherein Y is oxygen or sulfur and m and n independently of each other are an integer of from 1 to 3,
- M is hydrogen or a metal selected from the group consisting of barium, nickel, manganese, calcium, zinc, iron, sodium, cobalt, tin and dialkyl tin, and
- z has a value of from 1 to 4, the value of z being the same as the available valence of M
- said stabilizer bing incorporated into the synthetic organic polymer after polymerization.
- 2. The composition of claim 1 which contains additionally 0.005 to 5% of a phenolic antioxidant.
- 3. The composition of claim 1 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 thiobis-phenols.
- 4. The composition of claim 1 which contains additionally
- a. 0.005 to 5% of a phenolic antioxidant, and
- b. 0.01 to 2% of a thio co-stabilizer 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.
- 5. The composition of claim 1 wherein the synthetic organic polymer is a polyolefin.
- 6. The composition of claim 5 wherein the polyolefin is polypropylene.
- 7. The composition of claim 5 which contains additionally 0.005 to 5% of a phenolic antioxidant selected from the group consisting of n-octadecyl 3-(3,5-di-t-butyl-4-hydroxyphneyl propionate, di-n-octadecyl(3,5-di-t-butyl-4-hydroxybenzyl) phosphonate, pentaerythritol-tetrakis[3,5-di-t-butyl-4-hydroxyphenyl)propionate] and tris-(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate.
- 8. The composition of claim 5 which contains additionally
- a. 0.005 to 5% of a phenolic antioxidant selected from the group consisting of 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 the group consisting of 2(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzatriazole, 2(2'-hydroxy-5'-methylphenyl)-benzotriazole, and 2-hydroxy-4-n-octoxybenzophenone.
- 9. The composition of claim 5 wherein R.sub.1 and R.sub.2 are each methyl.
- 10. The composition of claim 9 wherein R.sub.4 is straight-chain alkylene having 5 to 8 carbon atoms, or the group (Ch.sub.2).sub.m Y(Ch.sub.2).sub.n where Y is oxygen or sulfur and m and n independently of each other are 1 to 2, M is hydrogen, nickel or manganese, and Z has a value of 1 or 2.
- 11. The composition of claim 10 wherein M is nickel.
- 12. The composition of claim 10 wherein M is hydrogen.
- 13. The composition of claim 10 wherein R.sub.4 is straight-chain alkylene having 5 to 8 carbon atoms.
- 14. The composition of claim 10 wherein R.sub.4 is the group (Ch.sub.2).sub.m Y(CH.sub.2).sub.n is Y, m and n are defined in claim 24.
- 15. The composition of claim 5 wherein the stabilizer is o-mono(2,2,6,6-tetramethyl-piperidin-4-ol)sebacate.
- 16. The composition of claim 5 wherein the stabilizer is nickel bis[o-mono(2,2,6,6-tetramethylpiperidin-4-ol) sebacate].
- 17. The composition of claim 5 wherein the stabilizer is o-mono(1,2,2,6,6-pentamethyl piperidin-4-ol)diglycolate.
- 18. The composition of claim 5 wherein the stabilizer is nickel bis[o-mono(1,2,2,6,6-pentamethylpiperidin-4-ol) diglycolate].
- 19. A compound of the formula ##STR10## 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 or 4 carbon atoms, propargyl, benzyl, or alkyl substituted benzyl,
- R.sub.4 is straight- or branched-chain alkylene having 5 to 8 carbon atoms, or the group (CH.sub.2).sub.m Y(CH.sub.2).sub.n wherein Y is oxygen or sulfur and m and n independently of each other are an integer of from 1 to 2,
- M is hydrogen or a metal selected from the group consisting of barium, calcium, and sodium, and the value of z is the same as the available valence of M.
- 20. A compound according to claim 19 wherein R.sub.1 and R.sub.2 are each methyl.
- 21. A compound according to claim 20 wherein R.sub.4 is straight-chain alkylene having 5 to 8 carbon atoms, or the group (CH.sub.2).sub.m Y(CH.sub.2).sub.n wherein Y is oxygen or sulfur and m and n independently of each other are 1 and 2, and z has a value of 1 or 2.
- 22. A compound according to claim 21 wherein M is hydrogen.
- 23. A compound according to claim 20 wherein R.sub.4 is straight-chain alkylene having 5 to 8 carbon atoms.
- 24. A compound according to claim 21 wherein R.sub.4 wherein R.sub.4 is the group (CH.sub.2).sub.m Y(CH.sub.2).sub.n and Y, m and n are as defined in claim 35.
- 25. A compound according to claim 21 which is o-mono-(2,2,6,6-tetramethyl-piperidin-4-ol)sebacate.
- 26. A compound according to claim 21 which is o-mono (1,2,2,6,6-pentamethyl piperidin-4-ol)diglycolate.
BACKGROUND OF THE INVENTION
This is a division of application Ser. No. 429,232 filed on Dec. 28, 1973, now U.S. Pat. No. 3,920,661.
US Referenced Citations (3)
Divisions (1)
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Number |
Date |
Country |
Parent |
429232 |
Dec 1973 |
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