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US3907719A
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Heterocyclic triglycidyl compounds
Assignee: Novartis Corp
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Filing: 1974-03-14
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Granted: 1975-09-23
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Expires: 1994-03-14
Abstract
Abstract The invention relates to new triglycidyl compounds of the formula: wherein X represents a bivalent alkylene group required for the formation of a 5- or 6-membered heterocycle, and R represents hydrogen or an alkyl group having 1 to 4 carbon atoms. The new triglycidyl compounds are stable in storage and from them are obtained, after curing, synthetic materials having good mechanical strength and high dimensional stability under heat.
Inventors
- 👤 Juergen Habermeier
- 👤 Daniel Porret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:05
CPC Classifications
C; C07; C07D; C07D235/00; C07D235/02; C07D233/00; C07D233/54; C07D233/66; C07D233/72; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/26; C08G59/32; C08G59/3236; C08G59/3245
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
A CURABLE MIXTURE CONSISTING ESSENTIALLY OF (A) AT AT LEAST ONE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
15 words
A CURABLE MIXTURE CONSISTING ESSENTIALLY OF (A) AT AT LEAST ONE COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
16 words
A curable mixture according to claim 1 wherein said curing agent is a dicarboxylic acid anhydride.
Claim 4
Dependent Claim
20 words
A curable mixture according to claim 1 wherein said dicarboxylic acid anhydride is phthalic acid anhydride or hexahydrophthalic acid anhydride.
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |