Patent US3242115A successfully refreshed from Google Patents.
US3242115A
Expired / Lapsed
US
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Stabilization of poly
Assignee: Union Carbide Corp
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Filing: 1962-10-12
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Granted: 1966-03-22
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles W Mcgary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:49
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PROCESS FOR STABLIZING A SOLID LOWER OLEFIN OXIDE POLYMER AGAINST CONDITIONS CONDUCIVE TO MOLECULAR WEIGHT DEGRADATION, SAID OLEFIN OXIDE HAVING A REDUCED VISCOSITY VALUE OF AT LEAST 1.0 AS MEASURED AT A CONCENTRATION OF 0.2 GRAM OF SAID POLYMER IN 100 MILLITIERS OF ACETONITRILE AT 30*C., WHICH PROCESS COMPRISES ADDING TO SAID OLEFIN OXIDE POLYMER FROM ABOUT 0.001 TO ABOUT 10 WEIGHT PERCENT, BASED ON THE WEIGHT OF SAID POLYMER, OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY ALKANOLS AND ALKENOLS CONTAINING FROM 2 TO 6 CARBON ATOMS.
Claim 2
Dependent Claim
93 words
A PROCESS FOR STABLIZING A SOLID LOWER OLEFIN OXIDE POLYMER AGAINST CONDITIONS CONDUCIVE TO MOLECULAR WEIGHT DEGRADATION, SAID OLEFIN OXIDE HAVING A REDUCED VISCOSITY VALUE OF AT LEAST 1.0 AS MEASURED AT A CONCENTRATION OF 0.2 GRAM OF SAID POLYMER IN 100 MILLITIERS OF ACETONITRILE AT 30*C., WHICH PROCESS COMPRISES ADDING TO SAID OLEFIN OXIDE POLYMER FROM ABOUT 0.001 TO ABOUT 10 WEIGHT PERCENT, BASED ON THE WEIGHT OF SAID POLYMER, OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY ALKANOLS AND ALKENOLS CONTAINING FROM 2 TO 6 CARBON ATOMS.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |