Cationic asphalt emulsions
US4997868A · kind A · utility
8Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1988 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Apr 18, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The setting time of cationic emulsions of asphalt, bitumen, coal tar or a mixture thereof may be shortened by incorporating into such emulsion at least 0.001 parts by weight per 100 parts by dry weight of said emulsion of a polycarboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.