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 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 3,
- M is a metal selected from the group consisting of barium, calcium, magensium, sodium, potassium and copper, and
- the value of z is the same as the 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 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 or 2,
- M is barium, calcium or magnesium, and z has a value of 1 or 2.
- 4. A compound according to claim 2 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 or 2, and
- M is sodium or potassium.
- 5. A compound according to claim 3 wherein M is barium
- 6. A compound according to claim 3 wherein M is calcium.
- 7. A compound according to claim 3 wherein R.sub.4 is straight-chain alkylene having 5 to 8 carbon atoms.
- 8. A compound according to claim 3 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 3.
- 9. A compound according to claim 3 which is o-mono(2,2,6,6-tetramethyl-piperidin-4-ol)sebacate.
- 10. A compound according to claim 3 which is barium bis[o-mono(2,2,6,6-tetramethylpiperidin-4-ol)sebacate].
- 11. A compound according to claim 3 which is calcium bis[o-mono(2,2,6,6-tetramethylpiperidin-4-ol)sebacate].
- 12. A compound according to claim 3 which is magnesium bis[o-mono(2,2,6,6-tetramethylpiperidin-4-ol)sebacate].
- 13. A composition of matter stabilized against ultraviolet deterioration which comprises a synthetic organic polymer normally subject to ultraviolet deterioration containing from
- (a) 0.005% to 5% of a stabilizing compound according to claim 1,
- (b) 0 to 5% of a phenolic antioxidant,
- (c) 0 to 5% of a thio co-stabilizer, and
- (d) 0 to 5% of a U.V. absorber.
- 14. A composition of matter stabilized against ultraviolet deterioration which comprises a synthetic organic polymer normally subject to ultraviolet deterioration containing from
- (a) 0.005 to 5% of a stabilizing compound according to claim 1,
- (b) 0 to 5% of a phenolic antioxidant,
- (c) 0 to 5% of a phosphite co-stabilizer, and
- (d) 0 to 5% of a U.V. absorber.
- 15. A composition of claim 13 wherein the organic material is a polyolefin.
- 16. A composition of claim 15 wherein the polyolefin is polypropylene.
RELATED APPLICATION
This application is a continuation-in-part of copending application, Ser. No. 429,232, filed Dec. 28, 1973, now U.S. Pat. No. 3,920,661.
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Kind |
3120540 |
Meltzer et al. |
Feb 1964 |
|
3640928 |
Murayama et al. |
Feb 1972 |
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3840494 |
Murayama et al. |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
429232 |
Dec 1973 |
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