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Title:
GRAFT POLYMER, AND THERMOREVERSIBLY CROSS-LINKED BITUMEN/POLYMER COMPOSITION CONTAINING SUCH A GRAFT POLYMER
Document Type and Number:
WIPO Patent Application WO/2013/092809
Kind Code:
A3
Abstract:
The invention relates to a thermoreversibly cross-linked graft polymer, to the method for preparing same, and to the use of such a graft polymer in preparing a thermoreversibly cross-linked bitumen/polymer composition. The present invention also relates to a thermoreversibly cross-linked bitumen/polymer composition comprising such a graft polymer, to the method for preparing same, and to bituminous asphalt including such a composition. The polymer comprises: a main polymer chain P consisting of conjugated diene units; at least one side graft G having the following general formula (1): R-(OCH2CH2)m-S---, where R is a straight or branched saturated hydrocarbon chain having at least 18 carbon atoms, and m is an integer varying from 0 to 20, said graft G being connected to the main polymer chain P via the sulfur atom of formula (1); and at least one graft G' having the following general formula (4): ---S-R'-S---, where R' is a straight or branched, saturated or unsaturated hydrocarbon grouping having 2 to 40 carbon atoms, optionally including one or more heteroatoms, said graft G' being connected to the main polymer chain P via each sulfur atom of formula (4).

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Inventors:
RUOT CAROLE (FR)
ILIOPOULOS ILIAS (FR)
LEIBLER LUDWIK (FR)
ZOVI ORNELLA ANNABELLE (FR)
Application Number:
PCT/EP2012/076295
Publication Date:
September 19, 2013
Filing Date:
December 20, 2012
Export Citation:
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Assignee:
TOTAL MARKETING SERVICES (FR)
CENTRE NAT RECH SCIENT (FR)
International Classes:
C08C19/20; C08C19/30; C08J3/00; C08L15/00; C08L95/00; C10C3/02
Foreign References:
FR2919298A12009-01-30
US20110098385A12011-04-28
US20100081770A12010-04-01
FR2078633A51971-11-05
Attorney, Agent or Firm:
HIRSCH & ASSOCIES (GROUPEMENT 161) (Paris, Paris, FR)
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