US3206391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic conversion of hydrocarbons
Assignee: Standard Oil Co
•
Filing: 1962-04-13
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Granted: 1965-09-14
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Expires: 1982-04-13
Abstract
No abstract record available.
Inventors
- 👤 Louis C Gutberlet
- 👤 Harry M Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:25
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/08; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/644; B01J23/70; B01J23/76; B01J23/84; B01J23/843; B01J27/00; B01J27/14; B01J27/185; B01J27/1853; B01J27/1856; C10G47/10; C10G47/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
PROCESS FOR POLYMERIZATION OF A POLYMERIZABLE ORGANIC WATER-INSOLUBLE MONOMER CONTAINING AT LEAST ONE CH2=C< GROUP WHICH COMPRISES FORMING A REVERSED EMULSION COMPRISING SAID MONOMER AS THE DISPERSION MEDIUM AND WATER AS THE DISPERSE PHASE IN THE PRESENCE OF A GRAFT COPOLYMER WHICH HAS BEEN OBTAINED BY GRAFTING A STYRENE HYDROCARBON CONTAINING FROM 8 TO 10 CARBON ATOMS ON TO 10 TO 500 PERCENT BY WEIGHT, CALCULATED ON THE AMOUNT OF SAID STYRENE HYDROCARBON, OF A WATER-SOLUBLE POLYALKYLENE-OXIDE CONTAINING POLYETHYLENE OXIDE UNITS AND HAVING A MOLECULAR WEIGHT OF AT LEAST 300, SAID REVERSED EMULSION CONTAINING 5 TO 4,000 PERCENT BY WEIGHT OF WATER, BASED ON THE TOTAL AMOUNT OF MONOMER, AND POLYMERIZING SAID REVERSED EMULSION WITH THE AID OF 0.1 TO 5% BY WEIGHT, CALCULATED ON THE TOTAL MONOMER QUANTITY, OF A FREE RADICAL FORMING SUBSTANCE.
Claim 2
Dependent Claim
135 words
PROCESS FOR POLYMERIZATION OF A POLYMERIZABLE ORGANIC WATER-INSOLUBLE MONOMER CONTAINING AT LEAST ONE CH2=C< GROUP WHICH COMPRISES FORMING A REVERSED EMULSION COMPRISING SAID MONOMER AS THE DISPERSION MEDIUM AND WATER AS THE DISPERSE PHASE IN THE PRESENCE OF A GRAFT COPOLYMER WHICH HAS BEEN OBTAINED BY GRAFTING A STYRENE HYDROCARBON CONTAINING FROM 8 TO 10 CARBON ATOMS ON TO 10 TO 500 PERCENT BY WEIGHT, CALCULATED ON THE AMOUNT OF SAID STYRENE HYDROCARBON, OF A WATER-SOLUBLE POLYALKYLENE-OXIDE CONTAINING POLYETHYLENE OXIDE UNITS AND HAVING A MOLECULAR WEIGHT OF AT LEAST 300, SAID REVERSED EMULSION CONTAINING 5 TO 4,000 PERCENT BY WEIGHT OF WATER, BASED ON THE TOTAL AMOUNT OF MONOMER, AND POLYMERIZING SAID REVERSED EMULSION WITH THE AID OF 0.1 TO 5% BY WEIGHT, CALCULATED ON THE TOTAL MONOMER QUANTITY, OF A FREE RADICAL FORMING SUBSTANCE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |