Aqueous bitumen emulsion
US7662225B2 · kind B2 · utility
10Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2005 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Aug 10, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to an aqueous bitumen emulsion, comprising bitumen and a surfactant agent, made from esters or amides of glycine betaine, produced by reaction of glycine betaine with a sulphonic acid and an alcohol or amine with a fatty chain derived from vegetable oils. Said bitumen emulsion may be used in the production of road surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.