Patent US3615796A successfully refreshed from Google Patents.
US3615796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anionic quick-set asphalt emulsion
Assignee: ChampionX LLC
•
Filing: 1969-09-04
•
Granted: 1971-10-26
•
Expires: 1989-09-04
Abstract
Abstract Quick setting of a bituminous emulsion for slurry seal repair of asphalt road surfaces is achieved by using a water-soluble alkyl petroleum sulfonate salt (Na) as the emulsifying agent.
Inventors
- 👤 Hans G Schreuders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:17
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
An emulsion according to claim 1 in which the molecular weight of the sulfonate is from about 300-360.
Claim 2
Dependent Claim
58 words
A slurry seal mixture consisting essentially of an emulsion according to claim 1, an aggregate and Portland cement, in which the sulfonate in the emulsion is of molecular weight about 300-360, and in which the materials are present in the following parts by weight: emulsion- 10-20 aggregate- 70-74 water- 5-15 Portland cement- 1/8-1.0 pErcent based on the aggregate.
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |