Patent US3308064A successfully refreshed from Google Patents.
US3308064A
Expired / Lapsed
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Derivatives of cyclic ketals
Assignee: Texaco Inc
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Filing: 1966-05-10
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Granted: 1967-03-07
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Expires: 1986-05-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Schlight
- 👤 Elmer E Schallenberg
- 👤 Moroz Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:41
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07F; C07F9/00; C07F9/02; C07F9/04; C08; C08F; C08F8/00; C08F8/12; C08F8/48; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2223/00; C10M2223/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
145 words
A METHOD OF PREPARING A CYCLIC KETAL DERIVATIVE COMPRISING: (A) CONTACTING P2S5 WITH AN ALIPHATIC POLYOLEFIN OF AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 250 AND 50,000 IN THE PRESENCE OF BETWEEN ABOUT 0.1 AND 5 WT. PERCENT SULFUR AT A TEMPERATURE BETWEEN ABOUT 100 AND 320*C., THE P2S5 COMPRISING BETWEEN ABOUT 5 AND 40 WT. PERCENT OF THE REACTION MIXTURE TO FORM A POLYOLEFIN-P2S5 FIRST REACTION PRODUCT; (B) CONTACTING SAID POLYOLEFIN-P2S5 FIRST REACTION PRODUCT WITH STEAM IN A MOLE RATIO OF STEAM TO SAID FIRST REACTION PRODUCT OF AT LEAST ABOUT 1 AT A TEMPERATURE BETWEEN ABOUT 100 AND 260*C. TO FORM A STEAM HYDROLYZED, INORGANIC PHOSPHORUS ACID CONTAINING POLYOLEFIN-PS5 SECOND REACTION PRODUCT; (C) SEPARATING SAID INORGANIC PHOSPHORUS ACID FROM SAID SECOND REACTION PRODUCT; (D) CONTACTING THE RESULTANT INORGANIC PHOSPHORUS ACID FREE, HYDROLYZED SECOND REACTION PRODUCT WITH A CYCLIC KETAL COMPOUND OF THE GENERAL FORMULA:
Claim 2
Independent Claim
145 words
A METHOD OF PREPARING A CYCLIC KETAL DERIVATIVE COMPRISING: (A) CONTACTING P2S5 WITH AN ALIPHATIC POLYOLEFIN OF AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 250 AND 50,000 IN THE PRESENCE OF BETWEEN ABOUT 0.1 AND 5 WT. PERCENT SULFUR AT A TEMPERATURE BETWEEN ABOUT 100 AND 320*C., THE P2S5 COMPRISING BETWEEN ABOUT 5 AND 40 WT. PERCENT OF THE REACTION MIXTURE TO FORM A POLYOLEFIN-P2S5 FIRST REACTION PRODUCT; (B) CONTACTING SAID POLYOLEFIN-P2S5 FIRST REACTION PRODUCT WITH STEAM IN A MOLE RATIO OF STEAM TO SAID FIRST REACTION PRODUCT OF AT LEAST ABOUT 1 AT A TEMPERATURE BETWEEN ABOUT 100 AND 260*C. TO FORM A STEAM HYDROLYZED, INORGANIC PHOSPHORUS ACID CONTAINING POLYOLEFIN-PS5 SECOND REACTION PRODUCT; (C) SEPARATING SAID INORGANIC PHOSPHORUS ACID FROM SAID SECOND REACTION PRODUCT; (D) CONTACTING THE RESULTANT INORGANIC PHOSPHORUS ACID FREE, HYDROLYZED SECOND REACTION PRODUCT WITH A CYCLIC KETAL COMPOUND OF THE GENERAL FORMULA:
Claim 3
Dependent Claim
100 words
A METHOD IN ACCORDANCE WITH CLAIM 1 WHEREIN THE POLYOLEFIN-P2S5 FIRST REACTION PRODUCT OF SAID "A" STEP PRIOR TO CONTACTING WITH STEAM IN SAID "B" STEP IS DILUTED WITH A MINERAL LUBRICATING OIL OF AN SUS VISCOSITY AT 100*F. OF BETWEEN ABOUT 50 AND 1000 TO FORM A DILUTED POLYOLEFIN-P2S5 REACTION MIXTURE HAVING A MINERAL LUBRICATING OIL CONTENT OF ABOUT 25 AND 75 WT. PERCENT, WHEREIN REACTION STEP "D" IS CONDUCTED IN THE PRESENCE OF BETWEEN ABOUT 0.001 AND 10 WT. PERCENT CATALYST SELECTED FROM THE GROUP CONSISTING OF SODIUM METHOXIDE, P-TOLUENE SULFONIC ACID, SULFURIC ACID, ZINC CHLORIDE AND TRIETHYLAMINE.
References Cited (Backward Citations)
US3206474A
Cited
US3209014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |