Abstract: The present invention relates to a process for preparing a zeolite ZSM-5 presenting a Si/Al molar ratio comprised between 2 and 8, preferably between 3 and 8, comprising the following steps: a) mixing at least one silicon source, at least one aluminum source, at least one organic template and at least one aqueous solvent, in order to obtain a synthesis mixture in solution or gel form; b) ageing the mixture obtained in step a) at a temperature of between 20° C. and 200° C. during at least 30 minutes; and d) crystallizing the resulting mixture during at least 24 hours, wherein a step c) of adding wood lignin or oxidized wood lignin to the mixture is performed after step a) or after step b). It also relates to a zeolite which is obtainable by such a process, and to its use.

Abstract: A cantilever (30) for an ultrasound acoustic microscopy device is provided comprising a transmission tip (31) to contact a sample (11) to therewith transmit an ultrasound acoustic signal as an ultrasound acoustic wave into the sample. The cantilever further comprises a reception tip (32) separate from the transmission tip (31) to contact the sample to receive an acoustic signal resulting from reflections of the ultrasound wave from within the sample.

Abstract: A device having a scattering which can be varied by liquid crystals includes a first electrode, an electroactive layer and a second electrode. It includes, between the first electrode and the electroactive layer, a first transparent polymeric barrier layer with a thickness of T1 and optionally, between the second electrode and the electroactive layer, a second transparent polymeric barrier layer with a thickness of T2, T1 being nonzero and at least 1 ?m, and T1+T2 being at most 40 ?m. The first polymeric barrier layer carries the first electrode or the first electrode is on a first dielectric substrate. The second optional polymeric barrier layer carries the second electrode or the second electrode is on a second dielectric substrate.

Abstract: An article includes a substrate that is transparent, the substrate being covered on at least one of its faces, totally or partly, with a protective layer based on zirconium and aluminum mixed oxide.

Abstract: A device having a scattering which can be varied by liquid crystals includes a first electrode, an electroactive layer and a second electrode, It includes, between the first electrode and the electroactive layer, a first transparent polymeric barrier layer with a thickness of T1 and optionally, between the second electrode and the electroactive layer, a second transparent polymeric barrier layer with a thickness of T2, T1 being nonzero and at least 1 ?m, and T1+T2 being at most 40 ?m. The first polymeric barrier layer carries the first electrode or the first electrode is on a first dielectric substrate. The second optional polymeric barrier layer carries the second electrode or the second electrode is on a second dielectric substrate.

Abstract: An article includes a substrate that is transparent, the substrate being covered on at least one of its faces, totally or partly, with a protective layer based on zirconium and aluminum mixed oxide.

Abstract: Composition including a first component, including furfuryl alcohol and humins and a second component including an acidic polymerization initiator. The composition can be oligomerized to a resin, which has a viscosity in the range of 0.1 to 10,000 Pa·s at 25° C., determined according to ISO3219. The resin, or a blend of furfuryl alcohol and humins as a component A and an acidic polymerization initiator as a component B, separated from each other, may form a kit for an adhesive or impregnation agent.

Abstract: Composition including a first component, including furfuryl alcohol and humins and a second component including an acidic polymerization initiator. The composition can be oligomerized to a resin, which has a viscosity in the range of 0.1 to 10,000 Pa·s at 25° C., determined according to ISO3219. The resin, or a blend of furfuryl alcohol and humins as a component A and an acidic polymerization initiator as a component B, separated from each other, may form a kit for an adhesive or impregnation agent.

Abstract: A process for the preparation of dimethyl ether by catalytic dehydration of methanol, in which there is used a catalyst based on a zeolite immobilized on a silicon carbide support, for example a zeolite of type ZSM-5 supported on silicon carbide extrudates or on a silicon carbide cellular foam.

Abstract: A process for the preparation of dimethyl ether by catalytic dehydration of methanol, in which there is used a catalyst based on a zeolite immobilized on a silicon carbide support, for example a zeolite of type ZSM-5 supported on silicon carbide extrudates or on a silicon carbide cellular foam.