US4038102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt compositions having improved adhesion to aggregate
Assignee: Mo och Domsjo AB
•
Filing: 1975-06-13
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Granted: 1977-07-26
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Expires: 1995-06-13
Abstract
Abstract Asphalt compositions are provided having improved adhesion to aggregate, comprising an alkyl oxyalkylene amine and, optionally, an alkanolamine.
Inventors
- 👤 Martin Edvin Hellsten
- 👤 Anders William Klingberg
- 👤 Stig Erick Svennberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
209 words
An additive for improving the adhesion of asphalt to aggregate comprising an ether amine having the general formula: ##STR6## wherein: R 1 is a hydrocarbon group having from about six to about sixteen carbon atoms, selected from the group consisting of alkyl and alkenyl; R 2 , r 3 , r 4 and R 5 are selected from the group consisting of hydrogen and alkyl radicals having from one to about two carbon atoms; n 1 and n 2 are numbers within the range from one to about four; x 1 and x 2 are numbers within the range from zero to about five, the sum of x 1 and x 2 being from one to five; the total number of carbon atoms in each ##STR7## unit being from one to about four; and an alkanolamine having the formula: ##STR8## wherein: R 6 and R 7 are selected from the group consisting of hydrogen and alkyl groups having from one to about two carbon atoms; n 3 is a number within the range from two to about four; x 3 is a number within the range from one to about three; the total number of carbon atoms in each ##STR9## unit being with the range from two to four.
Claim 2
Dependent Claim
209 words
An additive for improving the adhesion of asphalt to aggregate comprising an ether amine having the general formula: ##STR6## wherein: R 1 is a hydrocarbon group having from about six to about sixteen carbon atoms, selected from the group consisting of alkyl and alkenyl; R 2 , r 3 , r 4 and R 5 are selected from the group consisting of hydrogen and alkyl radicals having from one to about two carbon atoms; n 1 and n 2 are numbers within the range from one to about four; x 1 and x 2 are numbers within the range from zero to about five, the sum of x 1 and x 2 being from one to five; the total number of carbon atoms in each ##STR7## unit being from one to about four; and an alkanolamine having the formula: ##STR8## wherein: R 6 and R 7 are selected from the group consisting of hydrogen and alkyl groups having from one to about two carbon atoms; n 3 is a number within the range from two to about four; x 3 is a number within the range from one to about three; the total number of carbon atoms in each ##STR9## unit being with the range from two to four.
Claim 3
Dependent Claim
47 words
An additive according to claim 1, in which the ether amine R 1 is an alkyl group having from eight to about fourteen carbon atoms, the number of carbon atoms in each ##STR10## unit is two or three, x 1 is one, and x 2 is zero.
Claim 4
Dependent Claim
13 words
An additive according to claim 1 in which the alkanolamine is an ethanolamine.
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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) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |