US4000148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polychromophoric heterocyclic ultraviolet stabilizers and their use in organic compositions
Assignee: Eastman Kodak Co
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Filing: 1974-11-14
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Granted: 1976-12-28
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Expires: 1994-11-14
Abstract
Abstract The invention relates to polychromophoric heterocyclic ester compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of these polychromophoric heterocyclic ester compositions 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, coated on the exterior of the molded article, film or extruded fiber.
Inventors
- 👤 David M. Pond
- 👤 Richard H. S. Wang
- 👤 Gether Irick, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:24
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/494; A61K8/496; D; D06; D06M; D06M13/00; D06M13/244; D06M13/248; D06M13/322; D06M13/35; A61K2800/00; A61K2800/40; A61K2800/42; A61K2800/43; A61K2800/438
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
131 words
A composition of matter comprising aromatic ester compounds having the formula: ##STR20## wherein A is a group having the structure: ##STR21## and B is a group having the structure: ##STR22## wherein Q is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms; R 1 , r 2 , r 3 , and R 4 , are hydrogen, lower alkyl, phenyl, chlorine, bromine, lower alkyl phenyl, lower alkyloxy, carboxy, nitrile; I is the same as R 1 , R 2 , R 3 , and R 4 , and is present on all positions of the benzenoid ring, except the carbon atom attached to the Y substituent and the carbon atoms attached to the carboxyl group connecting the heterocyclic aromatic A group with the heterocyclic aromatic B group.
Claim 2
Dependent Claim
131 words
A composition of matter comprising aromatic ester compounds having the formula: ##STR20## wherein A is a group having the structure: ##STR21## and B is a group having the structure: ##STR22## wherein Q is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms; R 1 , r 2 , r 3 , and R 4 , are hydrogen, lower alkyl, phenyl, chlorine, bromine, lower alkyl phenyl, lower alkyloxy, carboxy, nitrile; I is the same as R 1 , R 2 , R 3 , and R 4 , and is present on all positions of the benzenoid ring, except the carbon atom attached to the Y substituent and the carbon atoms attached to the carboxyl group connecting the heterocyclic aromatic A group with the heterocyclic aromatic B group.
Claim 3
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR23##
Claim 4
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR24##
Claim 5
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR25##
Claim 6
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR26##
Claim 7
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR27##
Claim 8
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR28##
Claim 9
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR29##
Claim 10
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR30##
Claim 11
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR31##
Claim 12
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR32##
Claim 13
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR33##
Claim 14
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR34##
Claim 15
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR35##
Claim 16
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR36##
Claim 17
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR37##
Claim 18
Dependent Claim
12 words
a composition of matter according to claim 1 having the formula: ##STR38##
Claim 19
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR39##
Claim 20
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR40##
Claim 21
Dependent Claim
12 words
A composition of matter according to claim 1 having the formula: ##STR41##
References Cited (Backward Citations)
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Cited
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US3496188A
Cited
US3673202A
Cited
US3689425A
Cited
US3821240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-28 | 1980-06-28 | 1980-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-28 | 1984-06-28 | 1984-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-28 | 1988-06-28 | 1988-12-28 | $7700.00 | Window Closed / Lapsed |