Patent US3948916A successfully refreshed from Google Patents.
US3948916A
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Diglycidyl compounds of N-heterocyclic compounds
Assignee: Novartis AG
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Filing: 1973-09-13
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Granted: 1976-04-06
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Expires: 1993-09-13
Abstract
Abstract New diglycidyl compounds of mononuclear, five-membered or six-membered, unsubstituted or substituted, hydroxyalkylated N-heterocyclic compounds, produced by addition of formaldehyde or acetaldehyde to mononuclear, five-membered or six-membered, unsubstituted or substituted, N-heterocyclic compounds, for example hydantoin or dihydrouracil, to monohydroxyalkyl compounds, and subsequent glycidylation of the OH group and NH group to give the corresponding glycidyl compounds.
Inventors
- 👤 Daniel Porret
- 👤 Jurgen Habermeier
- 👤 Willy Fatzer
- 👤 Dieter Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:26
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
114 words
A N-heterocyclic diglycidyl compound of the formula ##EQU9## wherein R 1 , R 2 , R 3 and R 4 independently of one another each represents a member selected from the group consisting of hydrogen atom and alkyl with 1 to 4 carbon atoms, or wherein R 1 and R 2 together form a divalent aliphatic hydrocarbon radical selected from the group consisting of tetramethylene and pentamethylene, R 5 represents a hydrogen atom or the methyl group, R 6 and R 6 ' independently of one another each represents a member selected from the group consisting of hydrogen atom and methyl group, and n denotes an integer having a value of 1 or 2.
Claim 2
Dependent Claim
114 words
A N-heterocyclic diglycidyl compound of the formula ##EQU9## wherein R 1 , R 2 , R 3 and R 4 independently of one another each represents a member selected from the group consisting of hydrogen atom and alkyl with 1 to 4 carbon atoms, or wherein R 1 and R 2 together form a divalent aliphatic hydrocarbon radical selected from the group consisting of tetramethylene and pentamethylene, R 5 represents a hydrogen atom or the methyl group, R 6 and R 6 ' independently of one another each represents a member selected from the group consisting of hydrogen atom and methyl group, and n denotes an integer having a value of 1 or 2.
Claim 3
Dependent Claim
10 words
A compound as claimed in claim 1 which is 3-glycidyloxymethyl-1-glycidyl-5,5-dimethylhydantoin.
Claim 4
Dependent Claim
10 words
A compound as claimed in claim 1 which is 3-(1'-glycidyloxyethyl)-1-glycidyl-5,5-dimethylhydantoin.
Claim 5
Dependent Claim
10 words
A compound as claimed in claim 1 which is 3-glycidyloxymethyl-1-glycidyl-5-isopropylhydantoin.
Claim 6
Dependent Claim
10 words
A compound as claimed in claim 1 which is 3-glycidyloxymethyl-1-glycidyl-5,5-tetramethylenehydantoin.
Claim 7
Dependent Claim
10 words
A compound as claimed in claim 1 which is 3-glycidyloxymethyl-1-glycidyl-5-ethyl-5-methylhydantoin.
Claim 8
Dependent Claim
10 words
A compound as claimed in claim 1 which is 3-glycidyloxymethyl-1-glycidyl-5,5-dimethyl-5,6-dihydrouracil.
References Cited (Backward Citations)
US3629263A
Cited
US3772326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |