Claims
- 1. A compound of the formula ##STR9## 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, benzyl substituted by 1 or 2 methyl groups or alkanoyl containing 1 to 18 carbon atoms.
- R.sub.4 is straight- or branched-chain alkylene having 1 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 from 1 to 3,
- M is hydrogen or metal selected from the group consisting of barium, calcium, magnesium, sodium, potassium,
- Z has a value of from 1 to 4, the value of Z being the same as the available valence of M, and either
- (a) R.sub.5 is alkyl of 2 to 6 carbon atoms, R.sub.6 is alkyl of 1 to 6 carbon atoms, and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms, provided that R.sub.7 and R.sub.8 are not both hydrogen, or
- (b) R.sub.5 and R.sub.6 together with the carbon to which they are bound form a cyclopentyl or cyclohexyl ring, which is unsubstituted or substituted with a methyl group and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms.
- 2. A compound according to claim 1 wherein R.sub.1 is straight- or branched-chain alkyl of 1 to 6 carbon atoms, R.sub.2 is straight- or branched-chain alkyl of 2 to 6 carbon atoms, R.sub.5 is alkyl of 2 to 6 carbon atoms, R.sub.6 is alkyl of 1 to 6 carbon atoms, and R.sub.7, and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms; provided that R.sub.7 and R.sub.8 are not both hydrogen.
- 3. A compound according to claim 1 wherein R.sub.1 and R.sub.6 are methyl, R.sub.5 is alkyl of 2 to 6 carbon atoms, R.sub.6 is alkyl of 1 to 6 carbon atoms, and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms, provided that R.sub.7 and R.sub.8 are not both hydrogen.
- 4. A compound according to claim 1 wherein R.sub.4 is straight- or branched-chain alkylene having 1 to 8 carbon atoms.
- 5. A compound according to claim 1 wherein R.sub.4 is the group --(CH.sub.2).sub.m Y(CH.sub.2).sub.n --, wherein Y, m and n are as defined in claim 1.
- 6. A compound according to claim 1 wherein R.sub.4 is straight-chain alkylene having 1 to 8 carbon atoms.
- 7. A compound according to claim 1 wherein M is selected from hydrogen.
- 8. A compound according to claim 1 which is O-mono(2',6'-diethyl-2',3',6'-trimethylpiperidyl-4')2-methyl succinate.
- 9. A compound according to claim 1 which is Ca(II) Bis[O-mono(2',6'-diethyl-2',3',6'-trimethyl-piperidyl-4')2-methyl succinate].
- 10. A compound according to claim 1 which is Mg(II) Bis[O-mono(2',6'-diethyl-2',3',6'-trimethyl-piperidyl-4')3-methyl glutarate].
- 11. A compound according to claim 1 which is mg(II) Bis[O-mono(2,6-diethyl-2,3,6-trimethylpiperidyl-4)sebacate].
- 12. A compound according to claim 1 which is Ca(II) Bis[O-mono(2,6-diethyl-2,3,6-trimethylpiperidyl-4)sebacate].
- 13. A compound according to claim 1 which is O-mono(2',6'-diethyl-2',3',6'-trimethylpiperidyl-4) 3-methyl glutarate.
- 14. A compound according to claim 1 which is O-mono(2,6-diethyl-2,3,6-trimethylpiperidyl-4)sebacate.
- 15. 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.
- 16. A composition of claim 15 wherein the organic material is a polyolefin.
- 17. A composition of claim 16 wherein the polyolefin is polypropylene.
Parent Case Info
This is a divisional of application Ser. No. 700,380, filed on June 28, 1976 now U.S. Pat. No. 4,116,933.
US Referenced Citations (8)
Divisions (1)
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Number |
Date |
Country |
Parent |
700380 |
Jun 1976 |
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