Bitumen/polymer composition having improved mechanical properties
US11560479B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2019 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Jul 3, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2555/84
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a bitumen/polymer composition containing at least one elastomer of the heat-crosslinkable S-B-S type, where S is a styrene or other vinylaromatic polymer block, and B is a polybutadiene block, the composition comprising an adjuvant of the olefin polymer type and having improved mechanical properties. The invention also relates to the use of the compositions in the fields of road applications such as hot mixes; warm mixes; cold mixes, for example cold-cast mixes or emulsion gravel; or surface dressings, for example fluxed bitumen or emulsions; and in the fields of industrial applications, for example in the production of inside and outside coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.