US4337161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Borate-containing oil-in-water microemulsion fluid
Assignee: Chevron USA Inc
•
Filing: 1980-03-24
•
Granted: 1982-06-29
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Expires: 2000-03-24
Abstract
Abstract Disclosed is an oil-in-water emulsion comprising 0.99 to 50 percent by mass oil, 50 to 99 percent by mass of water, and 0.01 to 10 mass percent of an alkali metal borate.
Inventors
- 👤 Robert A. Stayner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:30
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2201/087; C10M2203/00; C10M2203/06; C10M2203/10; C10M2203/102; C10M2205/00; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/18; C10M2207/20; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/042; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10M2223/045; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
47 words
An oil-in-water microemulsion fluid consisting essentially of: (a) 0.99 to 50 percent by mass of a mineral oil; and (b) 50 to 99 percent by mass water; (c) 0.01 to 10 percent by mass of a potassium borate having a boron-to-potassium metal ratio of 2.5 to 4.5.
Claim 2
Dependent Claim
47 words
An oil-in-water microemulsion fluid consisting essentially of: (a) 0.99 to 50 percent by mass of a mineral oil; and (b) 50 to 99 percent by mass water; (c) 0.01 to 10 percent by mass of a potassium borate having a boron-to-potassium metal ratio of 2.5 to 4.5.
Claim 3
Dependent Claim
19 words
The emulsion fluid of claim 1 wherein said fluid contains 0.5 to 25 percent by mass of a surfactant.
Claim 4
Dependent Claim
15 words
The emulsion fluid of claim 2 wherein said alkali metal borate is a potassium triborate.
Claim 5
Dependent Claim
46 words
The oil-in-water microemulsion fluid of claim 1 wherein: (a) 2 to 10 mass percent of said fluid is said mineral oil; and (b) 70 to 98 mass percent of said fluid is water; (c) 1.0 to 5.0 mass percent of said fluid is an potassium borate.
Claim 6
Dependent Claim
45 words
The oil-in-water microemulsion fluid of claim 1 wherein: (a) 4 to 5 mass percent of said fluid is said mineral oil; (b) 80 to 95 mass percent of said fluid is water; (c) 2.0 to 3.0 mass percent of said fluid is a potassium borate.
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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) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |