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Patent US3299184A successfully refreshed from Google Patents.
US3299184A
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Method for processing fusible crosslinked ethylene/dicarboxylic anhydride copolymers
Assignee: Union Carbide Corp
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Filing: 1962-09-10
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Granted: 1967-01-17
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Expires: 1982-09-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Clyde J Whitworth
- 👤 Nathan L Zutty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:24
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08F; C08F8/00; C08F8/30; C08F8/32; C08F8/48; C08L2205/00; C08L2205/02; C08L2312/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE METHOD FOR PROCESSING A CROSSLINKED POLYMERIC COMPOSITION OF AN ETHYLENE/BICYCLO(2.2.1)HEPT-2-ENE-5,6DICARBOXYLIC ANHYDRIDE COPOLYMER AND AN ORGANIC COMPOUND HAVING AT LEAST TWO SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF HYDROXY, PRIMARY AMINO AND SECONDARY AMINO, WHEREIN THE CROSSLINKS OF SAID POLYERIC COMPOSITION ARE SELECTED FROM THE GROUP CONSISTING OF HALFESTER AND HALF-AMIDE CROSSLINKS OF SAID COPOLYMER, WHICH COMPRISES HEATING SAID CROSSLINKED POLYMERIC COMPOSITION AT A TEMPERATURE SUFFICIENT TO BREAK SAID CROSSLINKS WHEREBY SAID COMPOSITION IS RENDERED SUBSTANTIALLY FREE OF SAID CROSSLINKS, WORKING THE RESULTING CROSSLINK-FREE COMPOSITION AT SAID TEMPERATURE AND COOLING SAID CROSS-LINK-FREE COMPOSITION TO A TEMPERATURE SUFFICIENT TO PERMIT SAID CROSSLINKS TO RE-FORM.
Claim 2
Independent Claim
103 words
THE METHOD FOR PROCESSING A CROSSLINKED POLYMERIC COMPOSITION OF AN ETHYLENE/BICYCLO(2.2.1)HEPT-2-ENE-5,6DICARBOXYLIC ANHYDRIDE COPOLYMER AND AN ORGANIC COMPOUND HAVING AT LEAST TWO SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF HYDROXY, PRIMARY AMINO AND SECONDARY AMINO, WHEREIN THE CROSSLINKS OF SAID POLYERIC COMPOSITION ARE SELECTED FROM THE GROUP CONSISTING OF HALFESTER AND HALF-AMIDE CROSSLINKS OF SAID COPOLYMER, WHICH COMPRISES HEATING SAID CROSSLINKED POLYMERIC COMPOSITION AT A TEMPERATURE SUFFICIENT TO BREAK SAID CROSSLINKS WHEREBY SAID COMPOSITION IS RENDERED SUBSTANTIALLY FREE OF SAID CROSSLINKS, WORKING THE RESULTING CROSSLINK-FREE COMPOSITION AT SAID TEMPERATURE AND COOLING SAID CROSS-LINK-FREE COMPOSITION TO A TEMPERATURE SUFFICIENT TO PERMIT SAID CROSSLINKS TO RE-FORM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |