US3290347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of polyvalent metal salts of diorgano dithiophosphoric acids
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-02-28
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Granted: 1966-12-06
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Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Harold N Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:59
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN THE PREPARATION OF A POLYVALENT METAL SALT OF A DIORGANO DITHIOPHOSPHORIC ACID WHEREIN THE ORGANO GROUPS CONTAIN FROM 1 TO 30 CARBON ATOMS AND WHEREIN THE DIORGANO DITHIOPHOSPHORIC ACID IS NEUTRALIZED WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE OXIDES, HYDROXIDES AND CARBONATES OF CALCIUM, BARIUM, CADMIUM, LEAD, ZINC, COPPER, NICKEL, CHROMIUM, ALUMINUM AND MAGNESIUM, THE IMPROVEMENT, WHEREBY THE TIME REQUIRED FOR NEUTRALIZATION IS REDUCED AND THE NEED FOR AN EXCESS OF NEUTRALIZING COMPOUND IS ELIMATED, WHICH COMPRISES CONDUCTING THE NEUTRALIZATION IN THE PRESENCE OF 1 TO 10 WT. PERCENT, BASE ON THE WEIGHT OF DIORGANO DITHIOPHOSPHORIC ACID, OF A MATERIAL SELECTED FROM THE CLASS CONSISTING OF WATER-SOLUBLE CARBOXYLIC ACIDS OF FROM 1 TO 5 CARBON ATOMS AND THE WATER-SOLUBLE METAL SALTS OF SAID CARBOXYLIC ACIDS, SAID CARBOXYLIC ACID SALT IN EACH INSTANCE BEING OF THE SAME METAL AS THE METAL OF SAID COMPOUND.
Claim 2
Dependent Claim
147 words
IN THE PREPARATION OF A POLYVALENT METAL SALT OF A DIORGANO DITHIOPHOSPHORIC ACID WHEREIN THE ORGANO GROUPS CONTAIN FROM 1 TO 30 CARBON ATOMS AND WHEREIN THE DIORGANO DITHIOPHOSPHORIC ACID IS NEUTRALIZED WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE OXIDES, HYDROXIDES AND CARBONATES OF CALCIUM, BARIUM, CADMIUM, LEAD, ZINC, COPPER, NICKEL, CHROMIUM, ALUMINUM AND MAGNESIUM, THE IMPROVEMENT, WHEREBY THE TIME REQUIRED FOR NEUTRALIZATION IS REDUCED AND THE NEED FOR AN EXCESS OF NEUTRALIZING COMPOUND IS ELIMATED, WHICH COMPRISES CONDUCTING THE NEUTRALIZATION IN THE PRESENCE OF 1 TO 10 WT. PERCENT, BASE ON THE WEIGHT OF DIORGANO DITHIOPHOSPHORIC ACID, OF A MATERIAL SELECTED FROM THE CLASS CONSISTING OF WATER-SOLUBLE CARBOXYLIC ACIDS OF FROM 1 TO 5 CARBON ATOMS AND THE WATER-SOLUBLE METAL SALTS OF SAID CARBOXYLIC ACIDS, SAID CARBOXYLIC ACID SALT IN EACH INSTANCE BEING OF THE SAME METAL AS THE METAL OF SAID COMPOUND.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |