Abstract: The invention relates to a bitumen/polymer composition containing at least one elastomer of the heat-crosslinkable S-B-S type, where S is a styrene or other vinylaromatic polymer block, and B is a polybutadiene block, the composition comprising an adjuvant of the olefin polymer type and having improved mechanical properties. The invention also relates to the use of the compositions in the fields of road applications such as hot mixes; warm mixes; cold mixes, for example cold-cast mixes or emulsion gravel; or surface dressings, for example fluxed bitumen or emulsions; and in the fields of industrial applications, for example in the production of inside and outside coatings.

Abstract: A bitumen/polymer composition containing at least one elastomer of the heat-crosslinkable S-B-S type, where S is a styrene or other vinylaromatic polymer block, and B is a polybutadiene block, the composition including an adjuvant of the olefin polymer type and having improved mechanical properties. Also, the use of the compositions in the fields of road applications such as hot mixes; warm mixes; cold mixes, for example cold-cast mixes or emulsion gravel; or surface dressings, for example fluxed bitumen or emulsions; and in the fields of industrial applications, for example in the production of inside and outside coatings.

Abstract: Thermally crosslinkable bitumen/polymer composition based on at least one elastomer of S-B1-B2 type, with S a styrene polymer or other vinylaromatic polymer, B1 and B2 polybutadienes, the composition including an adjuvant of olefinic polymer type, the composition having improved mechanical properties. Use of these compositions in the fields of road applications such as hot bituminous mixes; warm bituminous mixes; cold bituminous mixes, for example cold-poured bituminous mixes or emulsion gravels; or surface dressings, for example fluxed bitumens or emulsions; and in the fields of industrial applications, for example in the manufacture of internal and external coatings.

Abstract: The invention relates to a bitumen/polymer composition and to its process of manufacture. The bitumen/polymer composition includes first bitumen base having an intrinsic stability S of greater than 2.5 and/or a degree of peptization Sa of greater than 0.60, and a second bitumen base having an intrinsic stability S of less than or equal to 2.50 and/or a degree of peptization Sa of less than or equal to 0.60, an elastomer and an olefinic polymer adjuvant functionalized by at least glycidyl functional groups. The values of intrinsic stability S and of the degree of peptization Sa are measured according to the standard ASTM D 7157-12. The bitumen/polymer composition exhibits improved low-temperature mechanical properties.

Abstract: Thermally crosslinkable bitumen/polymer composition based on at least one elastomer of S-B1-B2 type, with S a styrene polymer or other vinylaromatic polymer, B1 and B2 polybutadienes, the composition including an adjuvant of olefinic polymer type, the composition having improved mechanical properties. Use of these compositions in the fields of road applications such as hot bituminous mixes; warm bituminous mixes; cold bituminous mixes, for example cold-poured bituminous mixes or emulsion gravels; or surface dressings, for example fluxed bitumens or emulsions; and in the fields of industrial applications, for example in the manufacture of internal and external coatings.

Abstract: The invention relates to a bitumen/polymer composition and to its process of manufacture. The bitumen/polymer composition includes first bitumen base having an intrinsic stability S of greater than 2.5 and/or a degree of peptization Sa of greater than 0.60, and a second bitumen base having an intrinsic stability S of less than or equal to 2.50 and/or a degree of peptization Sa of less than or equal to 0.60, an elastomer and an olefinic polymer adjuvant functionalized by at least glycidyl functional groups. The values of intrinsic stability S and of the degree of peptization Sa are measured according to the standard ASTM D 7157-12. The bitumen/polymer composition exhibits improved low-temperature mechanical properties.

Abstract: A thermoreversibly cross-linked graft polymer, which may be used in bituminous asphalt, includes: 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, the 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 linear or branched, saturated or unsaturated hydrocarbon grouping having from 2 to 40 carbon atoms, optionally including one or more heteroatoms, the graft G? being connected to the main polymer chain P via each sulfur atom of formula (4).