Patent US4207117A successfully refreshed from Google Patents.
US4207117A
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Asphaltic compositions
Assignee: Mobil Oil AS
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Filing: 1975-10-17
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Granted: 1980-06-10
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Expires: 1995-10-17
Abstract
Abstract Asphalt compositions are provided containing a ductility improving amount of a refinery stream obtained in the form of a bottoms fraction from a thermofor catalytic cracking or fluid catalytic cracking operation.
Inventors
- 👤 Wilton F. Espenscheid
- 👤 Tsoung Y. Yan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:16
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/01; Y; Y02; Y02A; Y02A30/00; Y02A30/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
77 words
An asphaltic composition consisting essentially of asphalt having an ASTM viscosity grade of AC-10 and a ductility improving amount of a refinery stream obtained in the form of a bottoms fraction from a thermofor catalytic cracking or fluid catalytic cracking operation characterized by an initial boiling point of about 750° F. wherein said bottoms fraction is present in an amount of from about 0.5% to about 45% by weight of the total weight of said asphaltic composition.
Claim 2
Dependent Claim
77 words
An asphaltic composition consisting essentially of asphalt having an ASTM viscosity grade of AC-10 and a ductility improving amount of a refinery stream obtained in the form of a bottoms fraction from a thermofor catalytic cracking or fluid catalytic cracking operation characterized by an initial boiling point of about 750° F. wherein said bottoms fraction is present in an amount of from about 0.5% to about 45% by weight of the total weight of said asphaltic composition.
Claim 3
Dependent Claim
23 words
The asphaltic composition of claim 1 wherein said asphaltic composition has been subjected to air-blowing prior to the addition of said bottoms fraction.
Claim 4
Dependent Claim
22 words
The asphaltic composition of claim 1 wherein said asphaltic composition has been subjected to air-blowing following the addition of said bottoms fraction.
Claim 5
Dependent Claim
31 words
The asphaltic composition of claim 1 wherein said bottoms fraction is present in an amount from about 1.0% to about 20%, by weight, of the total weight of said asphaltic composition.
References Cited (Backward Citations)
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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) | 1983-06-10 | 1983-12-10 | 1984-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-10 | 1987-12-10 | 1988-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-10 | 1991-12-10 | 1992-06-10 | $7700.00 | Window Closed / Lapsed |