Hexahydropyrimidines as asphalt emulsifiers and emulsions containing hexadropyrimidines
US4579593A · kind A · utility
2Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 6, 1984 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Jan 6, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3462
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A rapid-set asphalt emulsion which comprises at least 60% residue, 30% water, 0.1% acid, and 0.15% of an emulsifier, the emulsifier comprising a hexahydropyrimidine of the general formula: ##STR1## wherein R.sub.1 is an alkyl group having from 8 to 18 carbon atoms, and R.sub.2 and R.sub.3 may be the same or different, and are selected from the group including H-- or --(CH.sub.2).sub.x CH.sub.3, wherein x is an integer between 0 and 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.