US3275682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of surface-active ether sulfonates
Assignee: Shell USA Inc
•
Filing: 1963-05-23
•
Granted: 1966-09-27
•
Expires: 1983-05-23
Abstract
No abstract record available.
Inventors
- 👤 Pieter M Bakker
- 👤 Buesink Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:24
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; C07C303/00; C07C303/02; C07C303/32; C11; C11D; C11D1/00; C11D1/02; C11D1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A PROCESS FOR PRODUCING SURFACE-ACTIVE HIGHER ALKYL ETHERS OF HYDROXYALKANE SULFONATES FROM A HYDROCARBON FRACTION CONTAINING OLEFINS WHICH ARE PREDOMINANTYL SECONDARY OLEFINS HAVING AT LEAST 8 BUT NOT MORE THAN ABOUT 20 CARBON ATOMS PER MOLECULE AND CONSISTING OF SECONDARY ALPHA-OLEFIN OF THE FORMULA R-CH=CH2 WHERE R REPRESENTS ALKYL OF 6 TO 18 CARBON ATOMS TOGETHER WITH SECONDARY OLEFIN HAVING THE DOUBLE BOND REMOVED FROM THE END OF THE OLEFIN, WHICH COMPRISES (1) REACTING SAID HYDROCARBON FRACTION WITH AN ALKYLEND HALOHYDRIN OF THE FORMULA HO-X-HAL WHERE X REPRESENTS ALKYLENE OF 2 TO 4 CARBON ATOMS, AND HAL IS HALOGEN OF THE GROUP CONSISTING OF CHLORINE, BROMINE, AND IODINE IN THE PRESENCE OF AN ACID CATALYST TO EFFECT SUBSTANTIAL CONVERSION OF SECONDARY ALPHA-OLEFIN TO PREDOMINANTLY HALOALKYL ETHER OF THE FORMULA
Claim 2
Dependent Claim
129 words
A PROCESS FOR PRODUCING SURFACE-ACTIVE HIGHER ALKYL ETHERS OF HYDROXYALKANE SULFONATES FROM A HYDROCARBON FRACTION CONTAINING OLEFINS WHICH ARE PREDOMINANTYL SECONDARY OLEFINS HAVING AT LEAST 8 BUT NOT MORE THAN ABOUT 20 CARBON ATOMS PER MOLECULE AND CONSISTING OF SECONDARY ALPHA-OLEFIN OF THE FORMULA R-CH=CH2 WHERE R REPRESENTS ALKYL OF 6 TO 18 CARBON ATOMS TOGETHER WITH SECONDARY OLEFIN HAVING THE DOUBLE BOND REMOVED FROM THE END OF THE OLEFIN, WHICH COMPRISES (1) REACTING SAID HYDROCARBON FRACTION WITH AN ALKYLEND HALOHYDRIN OF THE FORMULA HO-X-HAL WHERE X REPRESENTS ALKYLENE OF 2 TO 4 CARBON ATOMS, AND HAL IS HALOGEN OF THE GROUP CONSISTING OF CHLORINE, BROMINE, AND IODINE IN THE PRESENCE OF AN ACID CATALYST TO EFFECT SUBSTANTIAL CONVERSION OF SECONDARY ALPHA-OLEFIN TO PREDOMINANTLY HALOALKYL ETHER OF THE FORMULA
References Cited (Backward Citations)
US2094489A
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US1968601A
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US2316538A
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US2544392A
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US2925316A
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US3121124A
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |