Road bitumen pellets
US10683422B2 · 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
Bitumen pellets including at least one chemical additive chosen from: a compound of general formula (I): R1-(COOH)z in which R1 is a linear or branched, saturated or unsaturated hydrocarbon-based chain including from 4-68 carbon atoms, and z is an integer ranging from a compound of general formula (II): R—(NH)nCONH—(X)m-NHCO(NH)n-R′ in which: R and R′ are identical or different, contain a saturated or unsaturated, linear or branched, cyclic or acyclic hydrocarbon-based chain having from 1-22 carbon atoms and optionally including heteroatoms and/or rings having from 3-12 atoms and/or heterocycles having from 3-12 atoms; X contains a saturated or unsaturated, linear or branched, cyclic or acyclic hydrocarbon-based chain having from 1-22 carbon atoms and optionally including one or more heteroatoms and/or rings having from 3-12 atoms and/or heterocycles having from 3-12 atoms; n and m are integers having, independently of one another, a value of 0 or of 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.