Abstract: Bitumen that is solid at ambient temperature in the form of granules that include a core made of a first bituminous material and a coating made of a second bituminous material, the second bituminous material having a total content of asphaltenes, extracted using n-alkane, of 30% to 50% by weight in relation to the total weight of the bitumen in the coating.

Abstract: Bitumen that is solid at ambient temperature in the form of granules that include a core made of a first bituminous material and a coating made of a second bituminous material, the second bituminous material having a total content of asphaltenes, extracted using n-alkane, of 30% to 50% by weight in relation to the total weight of the bitumen in the coating.

Abstract: The present invention relates to a submicrometric material consisting of a silica shell encasing a core of superparamagnetic wax, to the process for producing same and to the uses thereof, in particular for the magnetically stimulated delivery of substances of interest.

Abstract: A method for preparing a solid bitumen material at ambient temperature, said method comprising at least the steps of: a) preparing an emulsion of bitumen drops in a water phase; b) preparing a silica sol or silica gel from a silicon oxide precursor that has a pH of 4 to 8; c) bringing the emulsion of bitumen drops from step a) into contact with the silica sol or silica gel from step b); d) subjecting the bitumen suspension from step c) to an atomization treatment.

Abstract: A method for preparing a solid bitumen material at ambient temperature, the method comprising at least the steps of: a) preparing a stabilized emulsion of bitumen drops in a water phase that has a pH of 2 to 4; b) preparing a silica sol or silica gel from a first silicon oxide precursor that has a pH of 2 to 4; c) mineralizing the emulsion of bitumen drops from step a) with the silica sol or gel from step b); d) mineralizing the emulsion of bitumen drops from step c) having a maximum pH of 1 with a second silicon oxide precursor; e) separating the material from the water phase.

Abstract: A process is provided for preparing an inorganic material in the form of an alveolar monolith of a silica matrix where the monolith includes interconnected macropores. The process includes at least one step of mineralizing an oil-in-water emulsion formed from droplets of an oily phase dispersed in a continuous aqueous phase and in which colloidal solid particles are present at the interface formed between the continuous aqueous phase and the dispersed droplets of oily phase. Such materials obtained according to this process may be used, especially for separative chemistry and filtration, for performing chemical reactions catalyzed in heterogeneous phase, as thermal or phonic insulators, or as templates for manufacturing controlled-porosity carbon skeletons.

Abstract: A material in the form of solid particles with a diameter varying from 10 ?m to 1 cm is provided, composed of a continuous solid shell having at least one silicon oxide, said shell imprisoning an aqueous phase The aqueous phase includes at least one hydrophilic substance of interest SH and at least one droplet of a fatty phase predominantly having a crystallizable oil in the solid state at the storage temperature of said material The crystallizable oil has a melting point (TM) of less than 100° C. and including at least one lipophilic substance of interest SL.

Abstract: The present invention relates to a material in the form of solid particles with a diameter varying from 1 ?m to 1 cm which are composed of a continuous shell EExt comprising at least one silicon oxide, said shell EExt imprisoning at least one fatty phase, said material being characterized in that said fatty phase is solid at the storage temperature of said material and predominantly comprises a crystallizable oil having a melting point (TM) of less than 100° C. and in that said fatty phase includes at least one lipophilic substance of interest SL and at least one inclusion comprising a continuous shell EInt comprising at least one silicon oxide, said shell EInt imprisoning an aqueous phase comprising at least one hydrophilic substance of interest SH. The invention also relates to a process for the preparation of said material, to its use for the thermostimulated delivery of active substances, and also to the compositions including it.

Abstract: The present invention relates to a material in the form of solid particles with a diameter varying from 1 ?m to 1 cm which are composed of a continuous shell EExt comprising at least one silicon oxide, said shell EExt imprisoning at least one fatty phase, said material being characterized in that said fatty phase is solid at the storage temperature of said material and predominantly comprises a crystallizable oil having a melting point (TM) of less than 100° C. and in that said fatty phase includes at least one lipophilic substance of interest SL and at least one inclusion comprising a continuous shell EInt comprising at least one silicon oxide, said shell EInt imprisoning an aqueous phase comprising at least one hydrophilic substance of interest SH. The invention also relates to a process for the preparation of said material, to its use for the thermostimulated delivery of active substances, and also to the compositions including it.

Abstract: A subject-matter of the present invention is a material in the form of solid particles with a diameter varying from 1 ?m to 1 cm which are composed of a continuous shell comprising at least one silicon oxide, said shell imprisoning an aqueous phase, said material being characterized in that said aqueous phase includes at least one hydrophilic substance of interest SH and at least one droplet of a fatty phase predominantly comprising a crystallizable oil in the solid state at the storage temperature of said material, said crystallizable oil having a melting point (TM) of less than 100° C. and including at least one lipophilic substance of interest SL. The invention also relates to a process for the preparation of said material, to its use for the thermostimulated delivery of active substances, and also to the compositions including it.

Abstract: The present invention relates to a material in the form of solid particles consisting of a continuous shell including at least one silicon oxide, said shell confining at least one oil phase, said material being characterized in that said oil phase is solid at the storage temperature of said material and predominately contains a crystallizable oil that has a melting temperature (TM) of less than 100° C. and at least one substance of interest, and in that the diameter of the particles varies from 1 ?m to 1 cm. The invention also relates to a method for preparing said material, to the use thereof for the thermostimulated generation of active substances, as well as to compositions containing same.

Abstract: A process is provided for preparing an inorganic material in the form of an alveolar monolith of a silica matrix where the monolith includes interconnected macropores. The process includes at least one step of mineralizing an oil-in-water emulsion formed from droplets of an oily phase dispersed in a continuous aqueous phase and in which colloidal solid particles are present at the interface formed between the continuous aqueous phase and the dispersed droplets of oily phase. Such materials obtained according to this process may be used, especially for separative chemistry and filtration, for performing chemical reactions catalysed in heterogeneous phase, as thermal or phonic insulators, or as templates for manufacturing controlled-porosity carbon skeletons.