US2570407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactions involving the use of hydrogen halides
Assignee: Phillips Petroleum Co
•
Filing: 1948-01-05
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Granted: 1951-10-09
•
Expires: 1968-01-05
Abstract
No abstract record available.
Inventors
- 👤 John D Upham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:16
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A PROCESS FOR THE PREPARATIONOF AN AKLYLATE OF HIGH PURITY WHICH COMPRISES ADMIXING WITH A MIXTURE OF TWO OLEFINS OF DIFFERENT REACTIVITIES TOWARD HYDROGEN HALIDES A PREDETERMINED CONTROLLED QUANTITY OF A HYDROGEN HALIDE TO REACT WITH THE MORE REACTIVE OLEFIN, SUBJECTING THE RESULTING ADMIXTURE TO CONDITIONS EFFECTING THE SELECTIVE REACTION OF HYDROGEN HALIDE WITH SAID MORE REACTIVE OLEFIN TO FORM THE CORRESPONDING ALKYL HALIDE THEREBY FORMING A MATERIAL ENRICHED IN THE LESS REACTIVE OLEINF, THE AFORESAID CONTROLLED QUANTITY OF HYDROGEN HALIDE BEING SUFFICIENT TO EFFECT SAID FORMATION OF ALKYL CHLORIDE AND LEAVE A SMALL RESIDUAL PREDETERMINED QUANTITY OF UNREACTED HYDROGEN HALIDE IN ADMIXTURE WITH THE UNREACTED OLEFIN, THE SAID SMALL RESIDUAL PREDETERMINED QUANTITY OF UNREACTED HYDROGEN HALIDE IN ADMIXTURE WITH THE UNREACTED OLEFIN BEING THAT QUANTITY WHICH WILL ACTIVATE THE METAL HALIDE CATALYST IN THE ENSURING ALKYLATION REACTION BE-
Claim 2
Dependent Claim
139 words
A PROCESS FOR THE PREPARATIONOF AN AKLYLATE OF HIGH PURITY WHICH COMPRISES ADMIXING WITH A MIXTURE OF TWO OLEFINS OF DIFFERENT REACTIVITIES TOWARD HYDROGEN HALIDES A PREDETERMINED CONTROLLED QUANTITY OF A HYDROGEN HALIDE TO REACT WITH THE MORE REACTIVE OLEFIN, SUBJECTING THE RESULTING ADMIXTURE TO CONDITIONS EFFECTING THE SELECTIVE REACTION OF HYDROGEN HALIDE WITH SAID MORE REACTIVE OLEFIN TO FORM THE CORRESPONDING ALKYL HALIDE THEREBY FORMING A MATERIAL ENRICHED IN THE LESS REACTIVE OLEINF, THE AFORESAID CONTROLLED QUANTITY OF HYDROGEN HALIDE BEING SUFFICIENT TO EFFECT SAID FORMATION OF ALKYL CHLORIDE AND LEAVE A SMALL RESIDUAL PREDETERMINED QUANTITY OF UNREACTED HYDROGEN HALIDE IN ADMIXTURE WITH THE UNREACTED OLEFIN, THE SAID SMALL RESIDUAL PREDETERMINED QUANTITY OF UNREACTED HYDROGEN HALIDE IN ADMIXTURE WITH THE UNREACTED OLEFIN BEING THAT QUANTITY WHICH WILL ACTIVATE THE METAL HALIDE CATALYST IN THE ENSURING ALKYLATION REACTION BE-
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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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |