US4024146A
Expired / Lapsed
US
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Diacrylic acid ester derivatives of uracil compounds
Assignee: Novartis Corp
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Filing: 1975-08-04
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Granted: 1977-05-17
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Expires: 1995-08-04
Abstract
Abstract New diacrylates are obtained by a process in which oxalkylated uracils dihydrouracils are esterfied with acrylic acid and/or methacrylic acid, or transesterified with acrylic acid ester and/or methacrylic acid ester.
Inventors
- 👤 Juergen Habermeier
- 👤 Daniel Porret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:17
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A diacrylic acid ester of the formula ##STR34## wherein R 1 and R 3 are independently hydrogen or methyl, R 2 is hydrogen, lower alkyl, lower alkyl interrupted by oxygen, or phenyl, or R 2 and R 3 together represent trimethylene or tetramethylene, R 6 and R 7 are independently hydrogen or alkyl of 1 to 4 carbon atoms, R 8 , r 9 , r 10 and R 11 are independently hydrogen or alkyl of 1 to 4 carbon atoms, and m and n are each a whole number having a value of 1 to 30.
Claim 2
Dependent Claim
97 words
A diacrylic acid ester of the formula ##STR34## wherein R 1 and R 3 are independently hydrogen or methyl, R 2 is hydrogen, lower alkyl, lower alkyl interrupted by oxygen, or phenyl, or R 2 and R 3 together represent trimethylene or tetramethylene, R 6 and R 7 are independently hydrogen or alkyl of 1 to 4 carbon atoms, R 8 , r 9 , r 10 and R 11 are independently hydrogen or alkyl of 1 to 4 carbon atoms, and m and n are each a whole number having a value of 1 to 30.
Claim 3
Dependent Claim
23 words
A diacrylic acid ester according to claim 1 wherein R 10 and R 11 are independently alkyl of 1 to 4 carbon atoms.
Claim 4
Dependent Claim
12 words
A diacrylic acid ester according to claim 1 of the formula: ##STR35##
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) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |