Patent US4164494A successfully refreshed from Google Patents.
US4164494A
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Piperidinyl phosphate ultraviolet stabilizers for organic compositions
Assignee: Eastman Chemical Co
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Filing: 1978-05-16
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Granted: 1979-08-14
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Expires: 1998-05-16
Abstract
Abstract The invention relates to piperidinyl phosphates which have been found to be effective ultraviolet stabilizers. The invention also relates to piperidinyl phosphate salts which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the piperidinyl phosphates or salts thereof to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, or coated on the exterior of the molded article, film or extruded fiber.
Inventors
- 👤 Gether Irick, Jr.
- 👤 Richard H. S. Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:16
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/529
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
172 words
An organic composition susceptable to ultraviolet light degradation stabilized against such degradation with a stabilizing amount of a mixture of piperidinyl phosphates having the formula: ##STR2## R 1 and R 2 are each alkyl having 1-6 carbons; R 3 and R 4 are each alkyl having 1-6 carbons 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; and R 5 is hydrogen, oxy, alkyl having 1 to 12 carbon atoms, β-methoxyethyl, alkenyl having 3 to 4 carbon atoms, propargyl, benzyl or alkyl substituted benzyl, and M is either hydrogen or a metal ion selected from the group consisting of Li, Na, K, Mg, Ca, Ba, Mn, Co, Ni, Sn, Zn, and Ce, wherein at least one M radical is one of said metal ions and when the valence of M is greater than one, the available valency requirements of M are filled by a suitable anion selected from the group consisting of acetoxy, benzoyloxy, and chloro.
Claim 2
Dependent Claim
172 words
An organic composition susceptable to ultraviolet light degradation stabilized against such degradation with a stabilizing amount of a mixture of piperidinyl phosphates having the formula: ##STR2## R 1 and R 2 are each alkyl having 1-6 carbons; R 3 and R 4 are each alkyl having 1-6 carbons 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; and R 5 is hydrogen, oxy, alkyl having 1 to 12 carbon atoms, β-methoxyethyl, alkenyl having 3 to 4 carbon atoms, propargyl, benzyl or alkyl substituted benzyl, and M is either hydrogen or a metal ion selected from the group consisting of Li, Na, K, Mg, Ca, Ba, Mn, Co, Ni, Sn, Zn, and Ce, wherein at least one M radical is one of said metal ions and when the valence of M is greater than one, the available valency requirements of M are filled by a suitable anion selected from the group consisting of acetoxy, benzoyloxy, and chloro.
Claim 3
Dependent Claim
145 words
An organic composition according to claim 1 wherein said piperidinyl phosphates have the formula: ##STR3## R 1 and R 2 are each alkyl having 1-6 carbons; R 3 and R 4 are each alkyl having 1-6 carbons 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; and R 5 is hydrogen, oxy, alkyl having 1 to 12 carbon atoms, β-methoxyethyl, alkenyl having 3 or 4 carbon atoms, propargyl, benzyl or alkyl substituted benzyl, and M is a metal ion selected from the group consisting of Li, Na, K, Mg, Ca, Ba, Mn, Co, Ni, Sn, Zn, Ce, and when the valence of M is greater than one, the available valency requirements of M are filled by a suitable anion selected from the group consisting of acetoxy, benzoyloxy, and chloro.
Claim 4
Dependent Claim
72 words
An organic composition according to claim 2 wherein said piperidinyl phosphates have the formula: ##STR4## wherein M is a metal ion selected from the group consisting of Li, Na, K, Mg, Ca, Ba, Mn, Co, Ni, Sn, Zn and Ce and when the valence of M is greater than one, the available valency requirements of M are filled by a suitable anion selected from the group consisting of acetoxy, benzoyloxy, and chloro.
Claim 5
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is lithium.
Claim 6
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is sodium.
Claim 7
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is potassium.
Claim 8
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is magnesium.
Claim 9
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is calcium.
Claim 10
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is barium.
Claim 11
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is manganese.
Claim 12
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is cobalt.
Claim 13
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is nickel.
Claim 14
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is tin.
Claim 15
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is zinc.
Claim 16
Dependent Claim
13 words
An organic composition according to claim 3 wherein said metal ion is cerium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-08-13 | 1983-02-12 | 1983-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-13 | 1987-02-12 | 1987-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-13 | 1991-02-12 | 1991-08-14 | $7700.00 | Window Closed / Lapsed |