Patent · US Active

Bitumen which is solid at ambient temperature

US11021397B2 · kind B2 · utility

0Cited by

7References

17Claims

0Family size

Assignee

TOTAL MARKETING SERVICES · FR

Inventors

Mouhamad MOUAZEN · Nanterre, FR
Laurence Lapalu · Villeurbanne, FR

Key dates

Filing date	May 22, 2017
Grant date	Jun 1, 2021
Priority date	—
Expiry date	Jul 27, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/0075
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Bitumen which is solid at ambient temperature, in the form of granules including a core made of a first bituminous material and a coating layer made of a second bituminous material, in which: the first bituminous material includes at least one bitumen base and the second bituminous material includes: at least one bitumen base and at least one chemical additive chosen from: an organic compound, a viscosifying compound, a paraffin, a polyphosphoric acid and mixtures thereof; or at least one pitch having a ring-and-ball softening point (RBSP) greater than or equal to 80° C., it being understood that the RBSP is measured according to the EN 1427 standard; or a mixture of these materials.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.