Patent ID: 11873406
Assignee: TOTAL MARKETING SERVICES
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  D  E | IPC C  D  E

Claim 11:
12. The process according to claim 11, which comprises the following steps:
a) the introduction of the bitumen base in a reactor equipped with mixing means and its heating at a temperature ranging from 70° C. to 220° C.,
b) the simultaneous or successive additions of 2′,3-bis[(3-[3,5-di(tert-butyl)-4-hydroxyphenyl]propionyl)]propionohydrazide and N,N′-ethylenedi(stearamide) of formula C17H35—CONH—CH2—CH2—NHCO—C17H35, and
c) the mixture of the bituminous composition at a temperature ranging from 70° C. to 220° C., until obtaining a homogenous composition.