US3859227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable slow-setting cationic bituminous emulsions and their preparation
Assignee: Chevron USA Inc
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Filing: 1972-08-24
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Granted: 1975-01-07
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Expires: 1992-08-24
Abstract
Abstract Cationic slow-setting bituminous emulsions with water as the continuous phase having at an acid pH, in combination, as emulsifiers, a cationic emulsifier which is an ethylene or propylene diamine substituted with an aliphatic hydrocarbon group of from 12 to 30 carbon atoms, an alkylphenylpolyoxyalkylenealkanol nonionic emulsifier, and a lignosulfonate salt.
Inventors
- 👤 Donald J Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:56
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005; C08K; C08K5/00; C08K5/16; C08K5/17; C08L71/00; C08L71/02; C08L97/00; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/05
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
134 words
A CATIONIC SLOW-SETTING BITUMINOUS EMULSION HAVING WATER AS THE CONTINUOUS PHASE COMPRISING FROM ABOUT 50 TO LESS THAN 80 WEIGHT PER CENT OF A BITUMINOUS MATERIAL HAVING A PENETRATION IN THE RANGE OF ABOUT 40 TO 300, AT LEAST ABOUT 0.05 WEIGHT PER CENT OF THE TOTAL EMULSION OF A CATIONIC EMULSIFIER WHICH IS AN ETHYLENE OR PROPYLENE DIAMINE SUBSTITUTED WITH AN ALIPHATIC HYDROCARBON GROUP OF FROM 12 TO 30 CARBON ATOMS, FROM ABOUT 0.2 TO 1 WEIGHT PERCENT OF AN ALKYPHENYLPOLYOXYALKYLENEALKANOL NONIONIC EMULSIFIER HAVING AT LEAST 75 WEIGHT PER CENT ALKYLENEOXY ALKANOL, AND WHEREIN SAID ALKYL GROUP IS OF FROM ABOUT 6 TO 20 CARBON ATOMS, FROM ABOUT 0.1 TO 3 WEIGHT PER CENT OF A LIGNOSULFONATE SALT AND THE REMAINDER WATER, WHEREIN THE PH IS IN THE RANGE OF 1 TO 5.5.
Claim 2
Dependent Claim
134 words
A CATIONIC SLOW-SETTING BITUMINOUS EMULSION HAVING WATER AS THE CONTINUOUS PHASE COMPRISING FROM ABOUT 50 TO LESS THAN 80 WEIGHT PER CENT OF A BITUMINOUS MATERIAL HAVING A PENETRATION IN THE RANGE OF ABOUT 40 TO 300, AT LEAST ABOUT 0.05 WEIGHT PER CENT OF THE TOTAL EMULSION OF A CATIONIC EMULSIFIER WHICH IS AN ETHYLENE OR PROPYLENE DIAMINE SUBSTITUTED WITH AN ALIPHATIC HYDROCARBON GROUP OF FROM 12 TO 30 CARBON ATOMS, FROM ABOUT 0.2 TO 1 WEIGHT PERCENT OF AN ALKYPHENYLPOLYOXYALKYLENEALKANOL NONIONIC EMULSIFIER HAVING AT LEAST 75 WEIGHT PER CENT ALKYLENEOXY ALKANOL, AND WHEREIN SAID ALKYL GROUP IS OF FROM ABOUT 6 TO 20 CARBON ATOMS, FROM ABOUT 0.1 TO 3 WEIGHT PER CENT OF A LIGNOSULFONATE SALT AND THE REMAINDER WATER, WHEREIN THE PH IS IN THE RANGE OF 1 TO 5.5.
Claim 3
Dependent Claim
60 words
A composition to claim 1, wherein said cationic emulsifier is present in an amount of from about 0.1 to 1 weight per cent, said nonionic emulsifier is present in an amount of from 0.25 to 0.75 weight per cent and said lignosulfonate salt is present in an amount of from about 0.5 to 2 weight per cent of said emulsion.
Claim 4
Dependent Claim
33 words
A composition according to claim 2, wherein said cationic emulsifier is an N-alkyl alkylene diamine, wherein said alkyl group is from 12 to 30 carbon atoms, and said alkylene is ethylene or propylene.
Claim 5
Dependent Claim
23 words
A composition to claim 1, wherein said lignosulfonate salt is a salt of an alkali metal, alkaline earth metal, iron, chromium or ammonium.
Claim 6
Dependent Claim
18 words
A composition according to claim 4, wherein said lignosulfonate salt is a salt of an alkaline earth metal.
Claim 7
Dependent Claim
36 words
A composition according to claim 1, wherein said catIonic emulsifier is an N-alkyl alkylene diamine, wherein said alkyl group is from 14 to 20 carbon atoms and said lignosulfonate salt is an alkaline earth metal salt.
Claim 8
Dependent Claim
13 words
A composition according to claim 6, wherein said alkaline earth metal is calcium.
Claim 9
Dependent Claim
13 words
A composition according to claim 6, wherein said alkaline earth metal is magnesium.
Claim 10
Dependent Claim
153 words
A sand-mixing grade cationic bituminous emulsion having water as the continuous phase comprising from about 50 to 70 weight per cent of a bituminous material having a penetration in the range of about 40 to 300, from 3 to 20 weight per cent based on bituminous material of a hydrocarbon solvent boiling in the range of about 100* to 600*F. at least about 0.05 weight per cent of the total emulsion of a cationic emulsifier which is ethylene or propylene diamine substituted with an aliphatic hydrocarbon of from 12 to 30 carbon atoms, from about 0.2 to 1 weight per cent of alkylphenylpolyoxyalkylenealkanol nonionic emulsifier having at least 75 weight per cent alkyleneoxy alkanol, wherein said alkyl group is from about 6 to 20 carbon atoms, from about 0.1 to 3 weight per cent of a lignosulfonate salt and the remainder water, wherein the pH is in the range of 1 to 5.5.
Claim 11
Dependent Claim
153 words
A sand-mixing grade cationic bituminous emulsion having water as the continuous phase comprising from about 50 to 70 weight per cent of a bituminous material having a penetration in the range of about 40 to 300, from 3 to 20 weight per cent based on bituminous material of a hydrocarbon solvent boiling in the range of about 100* to 600*F. at least about 0.05 weight per cent of the total emulsion of a cationic emulsifier which is ethylene or propylene diamine substituted with an aliphatic hydrocarbon of from 12 to 30 carbon atoms, from about 0.2 to 1 weight per cent of alkylphenylpolyoxyalkylenealkanol nonionic emulsifier having at least 75 weight per cent alkyleneoxy alkanol, wherein said alkyl group is from about 6 to 20 carbon atoms, from about 0.1 to 3 weight per cent of a lignosulfonate salt and the remainder water, wherein the pH is in the range of 1 to 5.5.
Claim 12
Independent Claim
138 words
A method of preparing slow-setting cationic bituminous emulsions having water as the continuous phase which comprises preparing a rapid-setting bituminous cationic emulsion having from about 50 to less than 80 weight per cent of a bitumen of a penetration in the range of about 40 to 300, at least about 0.05 weight per cent of a cationic emulsifier which is ethylene or propylene diamine substituted with an aliphatic hydrocarbon of from 12 to 30 carbon atoms and a pH in the range of about 1 to 5.5, adding an alkylphenylpolyoxyalkylenealkanol nonionic emulsifier having at least about 85 weight per cent of alkyleneoxy alkanol, wherein said alkyl group is from about 6 to 20 carbon atoms, and in the presence of said nonionic emulsifier form 0.1 to 3 weight per cent of the total emulsion of a lignosulfonate salt.
Claim 13
Independent Claim
138 words
A method of preparing slow-setting cationic bituminous emulsions having water as the continuous phase which comprises preparing a rapid-setting bituminous cationic emulsion having from about 50 to less than 80 weight per cent of a bitumen of a penetration in the range of about 40 to 300, at least about 0.05 weight per cent of a cationic emulsifier which is ethylene or propylene diamine substituted with an aliphatic hydrocarbon of from 12 to 30 carbon atoms and a pH in the range of about 1 to 5.5, adding an alkylphenylpolyoxyalkylenealkanol nonionic emulsifier having at least about 85 weight per cent of alkyleneoxy alkanol, wherein said alkyl group is from about 6 to 20 carbon atoms, and in the presence of said nonionic emulsifier form 0.1 to 3 weight per cent of the total emulsion of a lignosulfonate salt.
Claim 14
Dependent Claim
25 words
A method according to claim 10, wherein the nonionic emulsifier is added during the preparation of the rapid-setting cationic emulsion forming a semi-stable cationic emulsion.
Claim 15
Dependent Claim
20 words
A cationic slow-setting bituminous emulsion according to claim 1, wherein the pH is in the range of 1 to 4.
Claim 16
Dependent Claim
17 words
A composition according to claim 5 wherein the pH is in the range of 1 to 4.
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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |