US3175996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crosslinking polymers containing carbonyl groups with aluminum alkoxides
Assignee: WR Grace and Co
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Filing: 1962-11-06
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Granted: 1965-03-30
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Expires: 1982-11-06
Abstract
No abstract record available.
Inventors
- 👤 Razmic S Gregorian
- 👤 Richard W Bush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE PROCESS OF CROSSLINKING POLYMERIC MATERIAL CONTAINING CARBONYL SELECTED FROM THE GROUP CONSITING OF ALDEHYDE AND DETONE CARBONYL WHICH COMPRISES CONTACTING THE POLYMERIC MATERIAL IN UNDISSOLVED FORM AT A TEMPERATURE IN THE RANGE OF 50-300*C. WITH A CROSSLINKING AGENT OF THE GENERAL FORMULA: AL(OR)3-YCLY WHEREIN OR IS AN ALKOXY GROUP CONTAINING 1 TO 8 CARBON ATOMS AND Y IS EQUAL TO 0 TO 1, THE AMOUNT OF SAID CROSSLINKING AGENT BEING IN THE RAGE OF 1 TO 6 TIMES THE STOICHIOMETRIC AMOUNT REQUIRED TO CROSS LINK THE POLYMERIC MATERIAL THROUGH THE CARBONYL GROUPS.
Claim 2
Dependent Claim
93 words
THE PROCESS OF CROSSLINKING POLYMERIC MATERIAL CONTAINING CARBONYL SELECTED FROM THE GROUP CONSITING OF ALDEHYDE AND DETONE CARBONYL WHICH COMPRISES CONTACTING THE POLYMERIC MATERIAL IN UNDISSOLVED FORM AT A TEMPERATURE IN THE RANGE OF 50-300*C. WITH A CROSSLINKING AGENT OF THE GENERAL FORMULA: AL(OR)3-YCLY WHEREIN OR IS AN ALKOXY GROUP CONTAINING 1 TO 8 CARBON ATOMS AND Y IS EQUAL TO 0 TO 1, THE AMOUNT OF SAID CROSSLINKING AGENT BEING IN THE RAGE OF 1 TO 6 TIMES THE STOICHIOMETRIC AMOUNT REQUIRED TO CROSS LINK THE POLYMERIC MATERIAL THROUGH THE CARBONYL GROUPS.
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |