US3857402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission of oil
Assignee: ChampionX LLC
•
Filing: 1972-08-31
•
Granted: 1974-12-31
•
Expires: 1992-08-31
Abstract
Abstract The transmission of (crude) oil is improved by adding thereto a latex containing a friction reducing polymer and a surfactant which inverts the latex so that the friction reducing particles are dispersed if not dissolved, in the oil medium.
Inventors
- 👤 T Schuh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:32
CPC Classifications
C; C09; C09K; C09K3/00; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A METHOD OF IMPROVING TRANSMISSION EFFICIENCY OF OIL IN A PIPE COMPRISING: INTRODUCING INTO THE PIPE CONTAINING THE OIL BEING TRANSMITTED A LATEX CONTAINING A FRICTION REDUCING POLYMER SELECTED FROM THE GROUP CONSISTING OF CIS 1-4 POLYISOPRENE AND POLYISOBUTYLENE DISPERSED IN WATER, AND INVERTING THE LATEX TO DISPERSE THE POLYMER IN THE OIL BY CONCURRENTLY ADDING AN OIL SOLUBLE NON-IONIC SURFACTANT SELECTED FROM THE GROUP CONSISTING OF SORBITAN TRIOLEATE AND ALKYLPHENOXYPOLY (ETHYLENEOXY) ETHANOL.
Claim 2
Independent Claim
73 words
A METHOD OF IMPROVING TRANSMISSION EFFICIENCY OF OIL IN A PIPE COMPRISING: INTRODUCING INTO THE PIPE CONTAINING THE OIL BEING TRANSMITTED A LATEX CONTAINING A FRICTION REDUCING POLYMER SELECTED FROM THE GROUP CONSISTING OF CIS 1-4 POLYISOPRENE AND POLYISOBUTYLENE DISPERSED IN WATER, AND INVERTING THE LATEX TO DISPERSE THE POLYMER IN THE OIL BY CONCURRENTLY ADDING AN OIL SOLUBLE NON-IONIC SURFACTANT SELECTED FROM THE GROUP CONSISTING OF SORBITAN TRIOLEATE AND ALKYLPHENOXYPOLY (ETHYLENEOXY) ETHANOL.
References Cited (Backward Citations)
US2492173A
Cited
US3639108A
Cited
US3215154A
Cited
US3542044A
Cited
US3493000A
Cited
US3654994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |