Patent US3268464A successfully refreshed from Google Patents.
US3268464A
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Compositions of olefin oxide polymers and rosinous materials
Assignee: Union Carbide Corp
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Filing: 1961-07-07
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Granted: 1966-08-23
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Expires: 1981-07-07
Abstract
No abstract record available.
Inventors
- 👤 John F Suter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:02
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/02; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/283; Y10T428/2852; Y10T428/2878; Y10T428/31504; Y10T428/31844; Y10T428/31848; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
129 words
A COMPOSITION COMPRISING (1) AN OLEFIN OXIDE POLYMER SELECTED FROM THE GROUP CONSISTING OF SOLID POLY (ETHYLENE OXIDE) AND A SOLID COPOLYMER COMPRISIED OF AT LEAST 50 WEIGHT PERCENT OF ETHYLENE OXIDE IN COPOLYMERIZED FROM WITH UP TO 50 WEIGHT PERCENT OF A LOWER OLEFIN OXIDE WHICH IS SELECTED FROM THE GROUP CONSISTING OF PROPYLENE OXIDE AND BUTYLENE OXIDE, SAID OLEFIN OXIDE POLYMER HAVING A REDUCED VISCOSITY VALUE OF AT LEAST 1.0 AS MEASURED AT CONCENTRATION OF 0.2 GRAM OF SAID POLYMER IN 100 MILLILITERS OF ACETONITRILE AT 30*C.; AND (2) FROM ABOUT 1 TO ABOUT 40 WEIGHT PERCENT, BASED ON THE WEIGHT OF SAID POLYMER, OF A ROSINOUS MATERIAL WHICH IS SELECTED FROM THE GROUPS CONSISTING OF WOOD ROSIN, POLYMERIZED WOOD ROSIN, HYDROGENATED WOOD ROSIN, AND DEHYDROGENATED ROSIN.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |