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US2992196A
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Polyepoxide-dicarboxylic anhydride compositions
Assignee: Hooker Chemical Corp
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Filing: 1958-04-30
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Granted: 1961-07-11
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Expires: 1978-04-30
Abstract
No abstract record available.
Inventors
- 👤 Charles S Ilardo
- 👤 Claude T Bean
- 👤 Robitschek Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:48
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4215; C08G59/4284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A COMPOSITION OF MATTER COMPRISING A POLYEPOXIDE WHICH HAS GREATER THAN ONE NON-TERMINAL EPOXIDE GROUP PER MOLECULE AND WHICH IS DERIVED FROM NATURALLY OCCURRING GLYCERIDE VEGETABLE OILS, A CONSTIUENT SELECTED FROM THE GROUP CONSISTING OF ORGANIC DIBASIC ACIDS, ORGANIC DIHYDRIC ALCOHOLS AND MIXTURES THEREOF, AND 1,4, 5,6,7,7 - HEXACHLOROBICYCLO - (2.2.1) - 5 - HEPTENE - 2,3DICARBOXYLIC ANHYDRIDE.
Claim 2
Dependent Claim
58 words
A COMPOSITION OF MATTER COMPRISING A POLYEPOXIDE WHICH HAS GREATER THAN ONE NON-TERMINAL EPOXIDE GROUP PER MOLECULE AND WHICH IS DERIVED FROM NATURALLY OCCURRING GLYCERIDE VEGETABLE OILS, A CONSTIUENT SELECTED FROM THE GROUP CONSISTING OF ORGANIC DIBASIC ACIDS, ORGANIC DIHYDRIC ALCOHOLS AND MIXTURES THEREOF, AND 1,4, 5,6,7,7 - HEXACHLOROBICYCLO - (2.2.1) - 5 - HEPTENE - 2,3DICARBOXYLIC ANHYDRIDE.
References Cited (Backward Citations)
US2768153A
Cited
US2890196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |