US3867162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bituminous emulsions useful with mixtures of siliceous and limestone aggregate
Assignee: Chevron USA Inc
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Filing: 1970-12-17
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Granted: 1975-02-18
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Expires: 1990-12-17
Abstract
Abstract Bituminous emulsions are provided which develop good adhesion with either calcium-based aggregates or siliceous-based aggregates or mixtures thereof. The base emulsions useful in this invention are comprised of (1) bitumen, (2) a cationic emulsifier, (3) acid, and (4) water. To this base emulsion is added (1) an adhesion promoter such as tall oil, and (2) a hydrocarbon solvent to form the finished modified emulsions.
Inventors
- 👤 Jr Edward G Elste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:55
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
104 words
A MODIFIED EMULSION CONSITING ESSENTIALLY OF, A. FROM ABOUT 60 TO ABIOUT 100 PARTS BY WEIGHT OF A BASE EMULSION HAVING A PH OF FROM ABOUT 5 TO ABOUT 8, SAID BASE EMULSION COMPRISED OF, A. FROM ABOUT 50 TO ABOUT 80 PARTS BY WEIGHT BITUMEN, B. FROM ABOUT 0.05 TO ABOUT 2.0 PARTS BY WEIGHT OF A CATIONIC EMULSIFIER, C. FROM 0 TO ABOUT 0.5 PART BY WEIGHT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACETIC, PHOSPHORIC, HYDROCHLORIC, HYDROBROMIC, AND SULFAMIC, AND D. SUFFICIENT WATER TO MAKE THE TOTAL OF (A), (B), (C), AND (D) EQUAL 100 PARTS BY WEIGHT, AND
Claim 2
Dependent Claim
104 words
A MODIFIED EMULSION CONSITING ESSENTIALLY OF, A. FROM ABOUT 60 TO ABIOUT 100 PARTS BY WEIGHT OF A BASE EMULSION HAVING A PH OF FROM ABOUT 5 TO ABOUT 8, SAID BASE EMULSION COMPRISED OF, A. FROM ABOUT 50 TO ABOUT 80 PARTS BY WEIGHT BITUMEN, B. FROM ABOUT 0.05 TO ABOUT 2.0 PARTS BY WEIGHT OF A CATIONIC EMULSIFIER, C. FROM 0 TO ABOUT 0.5 PART BY WEIGHT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACETIC, PHOSPHORIC, HYDROCHLORIC, HYDROBROMIC, AND SULFAMIC, AND D. SUFFICIENT WATER TO MAKE THE TOTAL OF (A), (B), (C), AND (D) EQUAL 100 PARTS BY WEIGHT, AND
Claim 3
Dependent Claim
38 words
FROM ABOUT 0.25 TO ABOUT 3.0 PARTS OF AN ADHESION PROMOTER SELECTED FROM THE CLASS CONSISTING OF TALL OIL, CRUDE TALL OIL, TALL OIL HEADS, AND TALL OIL PITCH IN FROM 0 TO ABOUT 30 PARTS OF SOLVENT.
Claim 4
Dependent Claim
38 words
FROM ABOUT 0.25 TO ABOUT 3.0 PARTS OF AN ADHESION PROMOTER SELECTED FROM THE CLASS CONSISTING OF TALL OIL, CRUDE TALL OIL, TALL OIL HEADS, AND TALL OIL PITCH IN FROM 0 TO ABOUT 30 PARTS OF SOLVENT.
Claim 5
Dependent Claim
38 words
from about 0.25 to about 3.0 parts of an adhesion promoter selected from the class consisting of tall oil, crude tall oil, tall oil heads, and tall oil pitch in from 0 to about 30 parts of solvent.
Claim 6
Dependent Claim
38 words
from about 0.25 to about 3.0 parts of an adhesion promoter selected from the class consisting of tall oil, crude tall oil, tall oil heads, and tall oil pitch in from 0 to about 30 parts of solvent.
Claim 7
Dependent Claim
9 words
claim 1 wherein said adhesion promoter is tall oil.
Claim 8
Dependent Claim
55 words
from about 0.25 to about 3.0 parts of an adhesion promoter selected from the class consisting of tall oil, crude tall oil, tall oil heads, and tall oil pitch in from 0 to about 30 parts of solvent with B. from 94 to 90 parts of a mixed aggregate containing both calcareous and siliceous material.
Claim 9
Dependent Claim
55 words
from about 0.25 to about 3.0 parts of an adhesion promoter selected from the class consisting of tall oil, crude tall oil, tall oil heads, and tall oil pitch in from 0 to about 30 parts of solvent with B. from 94 to 90 parts of a mixed aggregate containing both calcareous and siliceous material.
Claim 10
Dependent Claim
8 words
claim 2 wherein said acid is acetic acid.
Claim 11
Dependent Claim
19 words
claim 3 wherein said bitumen is asphalt present in an amount of from 55 to 70 parts by weight.
Claim 12
Dependent Claim
18 words
claim 4 wherein said solvent is present in an amount of from 10 to 20 parts by weight.
Claim 13
Dependent Claim
19 words
claim 5 wherein said tall oil is present in an amount of from 0.5 to 2 parts by weight.
Claim 14
Dependent Claim
18 words
claim 6 wherein said tall oil contains from about 10 to about 30 percent by weight rosin acid.
Claim 15
Dependent Claim
36 words
claim 6 wherein said tall oil is reconstituted crude tall oil having an acid number of 80, a rosin acid content of 24% by weight, 25% by weight of unsaponifiables, and a saponification number of 122.
Claim 16
Dependent Claim
9 words
claim 8 wherein said cationic emulsifier has the formula
Claim 17
Dependent Claim
31 words
claim 7 wherein said acetic acid is present in an amount of about 0.004 part by weight and said base emulsion has a pH of from about 6 to about 7.
Claim 18
Independent Claim
26 words
A method of preparing a bitumen bonded mixed aggregate surface comprising mixing A. from 6 to 10 parts by weight of a modified emulsion comprised of
Claim 19
Independent Claim
26 words
A method of preparing a bitumen bonded mixed aggregate surface comprising mixing A. from 6 to 10 parts by weight of a modified emulsion comprised of
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |