Abstract: Highly cohesive composite materials, formed of at least one polymer and at least one compound selected from among the mineral oxides, silicoaluminates and activated carbon, have: a number median particle size of at least 150 ?m; a pore volume (Vd1), constituted of pores of diameter ranging from 3.6 to 1000 nm, of at least 0.4 cm3/g; and a cohesion index CIN, equal to the ratio (number median particle size after an air pressure stress of 4 bar)/(number median particle size without air pressure stress (0 bar)), greater than 0.40. Such composite materials are useful, e.g., as liquid supports, catalyst supports, additives or for liquid or gas filtration, in particular in cigarette filters.

Abstract: The invention relates to a method for reducing the CO2 content of a gas by contacting the gaseous effluent to be treated with an absorbent that contains a CO2 trapping agent in the impregnated state on a substrate made of a solid composite material (M) containing a polymer (P) and a compound (C) selected from mineral oxides, silico-aluminates, and activated carbon, wherein said material (M) has an average particle size (D50) higher than or equal to 100 ?m, and a pore space (Vd1) defined by pores having a diameter of between 3.6 and 1000 nm and which is at least 0.2 cm3/g. The invention also relates to specific absorbents used in said method.

Abstract: The invention relates to a method for reducing the CO2 content of a gas by contacting the gaseous effluent to be treated with an absorbent that contains a CO2 trapping agent in the impregnated state on a substrate made of a solid composite material (M) containing a polymer (P) and a compound (C) selected from mineral oxides, silico-aluminates, and activated carbon, wherein said material (M) has an average particle size (D50) higher than or equal to 100 ?m, and a pore space (Vd1) defined by pores having a diameter of between 3.6 and 1000 nm and which is at least 0.2 cm3/g. The invention also relates to specific absorbents used in said method.

Abstract: Highly cohesive composite materials, formed of at least one polymer and at least one compound selected from among the mineral oxides, silicoaluminates and activated carbon, have: a number median particle size of at least 150 ?m; a pore volume (Vd1), constituted of pores of diameter ranging from 3.6 to 1000 nm, of at least 0.4 cm3/g; and a cohesion index CIN, equal to the ratio (number median particle size after an air pressure stress of 4 bar)/(number median particle size without air pressure stress (0 bar)), greater than 0.40. Such composite materials are useful, e.g., as liquid supports, catalyst supports, additives or for liquid or gas filtration, in particular in cigarette filters.

Abstract: The invention concerns a conditioned composition comprising at least a liquid absorbed on a support containing a precipitated silica, said silica being in the form of substantially spherical beads and having: a mean pellet size greater than 150 ?m; a filling density in compact state(DRT) greater than 0.29; an oversize rate for a grid with mesh aperture size of 75 ?m of at least 92% by weight. The invention also concerns the use of such a silica as a support for liquid.

Abstract: A device and method are provided for correcting a requested volume of liquid to aspirate/dispense by a liquid-handling pipette based on the requested volume and/or a physical condition at the pipene. The pipette includes a piston drive mechanism configured to contact a piston assembly and move a piston rod of the piston assembly within a tip holder thereby causing regulation of an amount of liquid in the tip holder. The method includes selecting a requested volume at a pipette, the requested volume representing the amount of liquid to regulate, calculating a correction volume using a volume characterization, wherein the volume characterization characterizes a difference in the amount of the liquid regulated in the tip holder as a function of the requested volume, and displaying the correction volume to a user of the pipette thereby regulating the requested volume of liquid in the tip holder. The volume characterization is determined using a calibration process.

Abstract: The hand-held pipette comprises at least one track having increments, at least one brush, and a register area arranged to come into contact with each brush after it has traveled a predetermined number of increments.

Abstract: The sampling pipette includes an ejector arm for separating from the pipette a cone that is fixed to the pipette. The pipette includes adjustment means enabling the length of the arm to be varied continuously over a range of values.

Abstract: The hand-held pipette comprises at least one track having increments, at least one brush, and a register area arranged to come into contact with each brush after it has traveled a predetermined number of increments.

Abstract: The invention concerns a conditioned composition comprising at least a liquid absorbed on a support containing a precipitated silica, said silica being in the form of substantially spherical pellets and having: an average pellet size greater than 150 ?m; a filling density in compacted state (DRT) less than 0.29; an oversize rate for a sieve with aperture size of 75 ?m of at least 88% wt. %; a porous volume (Vd1), consisting of pores with diameter less than 1 ?m, greater than 2.0 cm3/g. The invention also concerns the use of said silica as a support for liquid.

Abstract: The sampling pipette comprises a body and an arm movable relative to the body to eject a cone fixed to the pipette, ejection taking place in a longitudinal direction of the pipette, the arm having both a first portion suitable for coming into contact with the cone, and a second portion. The two portions are engaged one in the other and, starting from an operating position, they enable the first portion to be separated from the body by means of an initial movement in a direction that is essentially perpendicular to the longitudinal direction.

Abstract: The sampling pipette comprises a body; an arm movable relative to the body parallel to a longitudinal direction of the pipette in order to eject a cone fixed to the body; and a button for controlling movement of the arm. The pipette is arranged in such a manner that the button applies sliding thrust on the arm while the arm is moving relative to the body.

Abstract: The sampling pipette includes means for adjusting the volume of liquid to be taken. It includes a locking element that is movable between an inactive position in which it makes the adjustment means unsuitable for performing adjustment and an active position in which it makes the adjustment means suitable for performing adjustment.

Abstract: The sampling pipette comprises a body (2) and an arm movable relative to the body to eject a cone (9) fixed to the pipette, ejection taking place in a longitudinal direction (10) of the pipette, the arm having both a first portion (16, 18, 20) suitable for coming into contact with the cone, and a second portion (14). The two portions are engaged one in the other and, starting from an operating position, they enable the first portion to be separated from the body (2) by means of an initial movement in a direction that is essentially perpendicular to the longitudinal direction (10).

Abstract: The invention concerns a conditioned composition comprising at least a liquid absorbed on a support containing a precipitated silica, said silica being in the form of substantially spherical beads and having: a mean pellet size greater than 150 ?m; a filling density in compact state(DRT) greater than 0.29; an oversize rate for a grid with mesh aperture size of 75 ?m of at least 92% by weight. The invention also concerns the use of such a silica as a support for liquid.

Abstract: The invention concerns a pipette comprising a body, an arm mobile relative to the body along a longitudinal direction to eject a tip fixed to the body and a push button controlling the movement of the arm. The pipette is designed such that the push button is mobile relative to the body in a plane perpendicular to the longitudinal direction by being able to take up any one particular position in a continuous range of positions in said plane and enabling to control the movement of the arm in said any particular position.

Abstract: The sampling pipette includes means (6, 12, 38, 5) for adjusting the volume of liquid to be taken. It includes a locking element (8) that is movable between an inactive position in which it makes the adjustment means unsuitable for performing adjustment and an active position in which it makes the adjustment means suitable for performing adjustment.

Abstract: The sampling pipette includes an ejector arm (14, 20) for separating from the pipette a cone that is fixed to the pipette. The pipette includes adjustment means (16, 18) enabling the length of the arm to be varied continuously over a range of values.

Abstract: The invention concerns a conditioned composition comprising at least a liquid absorbed on a support containing a precipitated silica, said silica being in the form of substantially spherical beads and having: a mean pellet size greater than 150 &mgr;m; a filling density in compact state (DRT) greater than 0.29; an oversize rate for a grid with mesh aperture size of 75 &mgr;m of at least 92% by weight. The invention also concerns the use of such a silica as a support for liquid.

Abstract: The invention concerns a pipette comprising a body, an arm (20) mobile relative to the body along a longitudinal direction (10) to eject a tip fixed to the body and a push button (14) controlling the movement of the arm. The pipette is designed such that the push button (14) is mobile relative to the body (2) in a plane perpendicular to the longitudinal direction (10) by being able to take up any one particular position in a continuous range of positions in said plane and enabling to control the movement of the arm in said any particular position.