Patent · US Active

Process for preparing graft polymers without initiator and without solvent and bitumen/polymer compositions comprising said graft polymers

US8883930B2 · kind B2 · utility

1Cited by

5References

14Claims

0Family size

Assignees

TOTAL MARKETING SERVICES · FR
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR

Inventors

Sylvia Harders · Kürten, DE
Romuald Botel · Feyzin, FR
Ilias Iliopoulos · Paris, FR
Ludwik Leibler · Paris, FR
Ornella ZOVI · Niort, FR

Key dates

Filing date	Jul 8, 2011
Grant date	Nov 11, 2014
Priority date	—
Expiry date	Aug 18, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2555/84
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for preparing graft polymers from a polymer is based on conjugated diene units and a graft which is a thiol derivative. The process has an absence of solvent and any radical initiator. The graft polymer can be advantageously be used as additive for a bitumen/polymer composition and in particular permits thermoreversible cross-linking.

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