US2599501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction of phosphorus halides with monoolefin-carbon monoxide copolymers
Assignee: EIDP Inc
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Filing: 1949-03-23
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Granted: 1952-06-03
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Expires: 1969-03-23
Abstract
No abstract record available.
Inventors
- 👤 Robert W Upson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:24
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR MAKING POLYMERS WHICH COMPRISES REACTING AT A TEMPERATURE OF FROM 0* C. TO 200* C. A TWO TO FOUR CARBON MONOOLEFIN/CARBON MONOXIDE POLYMER WITH A COMPOUND FROM THE GROUP CONSISTING OF PHOSPHOROUS TRICHLORIDE AND DIHYDROCARBON HALOPHOSPHATE ESTERS, AND A SECOND COMPOUND FROM THE GROUP CONSISTING OF GLACIAL ACETIC ACID AND ACETIC ANHYDRIDE, ACID HYDROLYZING THE PRODUCT OBTAINED AND ISOLATING THE RESULTING POLYMER, SAID MONOOLEFIN/CARBON MONOXIDE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 250 AND A MONOOLEFIN/CARBON MONOXIDE MOLE RATIO OF FROM 1:1 TO 150:1.
Claim 2
Dependent Claim
88 words
A PROCESS FOR MAKING POLYMERS WHICH COMPRISES REACTING AT A TEMPERATURE OF FROM 0* C. TO 200* C. A TWO TO FOUR CARBON MONOOLEFIN/CARBON MONOXIDE POLYMER WITH A COMPOUND FROM THE GROUP CONSISTING OF PHOSPHOROUS TRICHLORIDE AND DIHYDROCARBON HALOPHOSPHATE ESTERS, AND A SECOND COMPOUND FROM THE GROUP CONSISTING OF GLACIAL ACETIC ACID AND ACETIC ANHYDRIDE, ACID HYDROLYZING THE PRODUCT OBTAINED AND ISOLATING THE RESULTING POLYMER, SAID MONOOLEFIN/CARBON MONOXIDE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 250 AND A MONOOLEFIN/CARBON MONOXIDE MOLE RATIO OF FROM 1:1 TO 150:1.
References Cited (Backward Citations)
US2491920A
Cited
US2495108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |