Rapid and medium setting high float bituminous emulsions
US4676927A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1985 |
| Grant date | Jun 30, 1987 |
| Priority date | — |
| Expiry date | Oct 3, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/09
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Alkaline solutions of combinations of tall oil fatty acids or tallow fatty acids and their reaction products with acrylic acid, fumaric acid and maleic anhydride with and without catalytical amounts of iodine at a dosage of 0.4-0.6% based on the weight of asphalt emulsions are disclosed to be efficient emulsifiers for rapid set high float emulsions. Blends of fatty acids with fumarized or maleinized rosin are also excellent emulsifiers. If dosage levels of above 0.6 to 3.0% are used, medium set high float emulsions are obtained. Combinations of tall oil fatty acid and sulfonated tall oil fatty acid also give medium set high float emulsions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.