Bituminous composition with thermoreversible properties
US9238752B2 · kind B2 · utility
1Cited by
6References
15Claims
0Family size
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Key dates
| Filing date | Jul 19, 2013 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Feb 9, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a method of making a theremorevsible bituminous composition. The method includes transferring an additive to a bitumen to form a mixture, and stirring the mixture until its appearance is homogenous. The additive can be an organogelator with general formula R″—(COOH)z, where R″ is a linear or branched, saturated or unsaturated chain having 4 to 68 carbon atoms and z is an integer varying from 2 to 4. The bituminous composition is hard at the temperature of use without increasing its viscosity when hot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.