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US 8,273,819 B2Granted
Non-gellable and pumpable concentrated binder for bitumen/polymer
AssigneeTotal Raffinage Marketing
InventorsGilles Gauthier, Guillaume Dulac
Life of this patent
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Abstract
The present disclosure relates to a concentrated binder having a very high polymer content comprising a soft aromatic petroleum base, optionally a bituminous base and at least one polymer characterized in that the polymer content in the concentrated binder is greater than or equal to 20% by weight, preferably greater than or equal to 25% by weight, and the use thereof in the preparation of a dilute bitumen/polymer binder for the fields of road applications, in particular in the manufacture of road binders, and in the fields of industrial applications.
Claims17
A polymer-concentrated binder comprising:
- at least 70% by weight of a soft aromatic petroleum base comprising at least one aromatic petroleum cut, taken alone or as a mixture, from de-aromatization of petroleum cuts originating from the refining of crude oil;
- at least one polymer consisting of one or several copolymers based on conjugated diene units and aromatic monovinyl hydrocarbon units;
- and
- optionally a bituminous base,
- wherein the polymer-concentrated binder has a polymer content greater than or equal to 20% by weight.
2 more elements
Dependencies are inferred from the claim text.