US2533425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of allyl chloride and method of using the product as a valve lubricant
Assignee: Phillips Petroleum Co
•
Filing: 1946-05-14
•
Granted: 1950-12-12
•
Expires: 1966-05-14
Abstract
No abstract record available.
Inventors
- 👤 Paul H Carnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:22
CPC Classifications
C; C10; C10M; C10M7/00; C10M2211/00; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10N; C10N2050/00; C10N2050/08; C10N2050/10; Y; Y10; Y10T; Y10T137/00; Y10T137/0318
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
THE METHOD OF LUBRICATING A PLUG VALVE THROUGH WHICH LIQUID HYDROCARBONS FLOW, WHICH COMPRISES FORCING INTO THE LUBRICATING GROOVES OF THE VALVE A MIXTURE OF A VISCOUS TACKY HYDROCARBON-INSOLUBLE POLYMER OF ALLYL CHLORIDE CONTAINING COMBINED CHLORINE AND FLUORINE AND WHICH IS TOO VISCOUS FOR READY PASSAGE INTO SAID LUBRICATING GROOVES ADMIXED WITH SUFFICIENT OF A LESSVISCOUS HYDROCARBON-SOLUBLE HALOGEN-CONTAINING ORGANIC MATERIAL AS TO PRODUCE A FREE-FLOWING MIXTURE, AND FLOWING SAID LIQUID HYDROCARBONS THROUGH SAID VALVE WHEREBY SAID ADDED HALOGENCONTAINING ORGANIC MATERIAL IS DISSOLVED AND CARRIED AWAY FROM THE VALVE AND SAID VISCOUS POLYMER REMAINS IN SAID VALVE AS LUBRICANT.
Claim 2
Independent Claim
98 words
THE METHOD OF LUBRICATING A PLUG VALVE THROUGH WHICH LIQUID HYDROCARBONS FLOW, WHICH COMPRISES FORCING INTO THE LUBRICATING GROOVES OF THE VALVE A MIXTURE OF A VISCOUS TACKY HYDROCARBON-INSOLUBLE POLYMER OF ALLYL CHLORIDE CONTAINING COMBINED CHLORINE AND FLUORINE AND WHICH IS TOO VISCOUS FOR READY PASSAGE INTO SAID LUBRICATING GROOVES ADMIXED WITH SUFFICIENT OF A LESSVISCOUS HYDROCARBON-SOLUBLE HALOGEN-CONTAINING ORGANIC MATERIAL AS TO PRODUCE A FREE-FLOWING MIXTURE, AND FLOWING SAID LIQUID HYDROCARBONS THROUGH SAID VALVE WHEREBY SAID ADDED HALOGENCONTAINING ORGANIC MATERIAL IS DISSOLVED AND CARRIED AWAY FROM THE VALVE AND SAID VISCOUS POLYMER REMAINS IN SAID VALVE AS LUBRICANT.
Claim 3
Independent Claim
102 words
THE METHOD OF PREPARING A LUBRICANT WHICH COMPRISES PARTIALLY POLYMERIZING ALLYL CHLORIDE IN THE PRESENCE OF FROM 0.5 TO 50 WEIGHT PER CENT BENZOYL PEROXIDE AND AIR AT A TEMPERATURE WITHIN THE RANGE OF 0 TO 50 DEGREE C. FOR A TIME SUFFICIENT TO PRODUCE A FINAL POLYMER RESISTANT TO THE ACTION OF AQUEOUS ACIDS, SEPARATING UNPOLYMERIZED ALLYL CHLORIDE FROM POLYMER THUS PRODUCED, FURTHER TREATING THE LATTER IN THE PRESENCE OF A POLYMERIZING AGENT CONSISTING OF CONCENTRATED HYDROGEN FLUORIDE TO PRODUCE A FINAL VISCOUS POLYMER CONTAINING COMBINED CHLORINE AND FLUORINE, AND RECOVERING SAID FINAL VISCOUS POLYMER AS A PRODUCT OF THE PROCESS.
Claim 4
Independent Claim
102 words
THE METHOD OF PREPARING A LUBRICANT WHICH COMPRISES PARTIALLY POLYMERIZING ALLYL CHLORIDE IN THE PRESENCE OF FROM 0.5 TO 50 WEIGHT PER CENT BENZOYL PEROXIDE AND AIR AT A TEMPERATURE WITHIN THE RANGE OF 0 TO 50 DEGREE C. FOR A TIME SUFFICIENT TO PRODUCE A FINAL POLYMER RESISTANT TO THE ACTION OF AQUEOUS ACIDS, SEPARATING UNPOLYMERIZED ALLYL CHLORIDE FROM POLYMER THUS PRODUCED, FURTHER TREATING THE LATTER IN THE PRESENCE OF A POLYMERIZING AGENT CONSISTING OF CONCENTRATED HYDROGEN FLUORIDE TO PRODUCE A FINAL VISCOUS POLYMER CONTAINING COMBINED CHLORINE AND FLUORINE, AND RECOVERING SAID FINAL VISCOUS POLYMER AS A PRODUCT OF THE PROCESS.
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) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |