Method for the transportation and/or storage of road bitumen
US10683421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2015 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Jul 29, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C7/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the transportation and/or storage of road bitumen under cold conditions, including at least one chemical additive chosen from: a general formula compound (I): R1—(COOH)z wherein R1 is a linear or branched, saturated or unsaturated hydrocarbon-based chain including 4 to 68 carbon atoms, and z is an integer ranging from 1 to 4, and a general formula compound (II): R—(NH)nCONH—(X)m—NHCO(NH)n—R′ wherein: R and R′, which are identical or different, contain a saturated or unsaturated, linear or branched, cyclic or acyclic hydrocarbon-based chain having 1 to 22 carbon atoms and optionally including heteroatoms and/or rings having 3 to 12 atoms and/or heterocycles having 3 to 12 atoms; X contains a saturated or unsaturated, linear or branched, cyclic or acyclic hydrocarbon-based chain having 1 to 22 carbon atoms and optionally including one or more heteroatoms and/or rings having 3 to 12 atoms and/or heterocycles having 3 to 12 atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.