Abstract: A catalyst cell includes a main body having a sidewall extending around a cavity sized to receive catalyst material. An inlet and an outlet are located at the sidewall, with both being in communication with the cavity, and the outlet being spaced from the inlet. A compaction plate is positionable within the cavity adjacent the catalyst material, with the compaction plate and the main body collectively defining a volume of the cavity. The compaction plate is moveable relative to the main body to facilitate variation in the volume of the cavity. A spring is operatively connected to the compaction plate and is configured to impart a force on the compaction plate to facilitate adjustment of the volume of the cavity in response to breakdown of catalyst material within the cavity.

Abstract: A composition comprises one or more trimesic acid derivatives of Formula (I) in which R1, R2, and R3 are independently selected from the group consisting of alkyl groups. A polymer composition comprises a composition as described above and a polyolefin polymer. The polymer compositions containing a trimesic acid derivative of Formula (I) exhibit very low haze levels and minimal extraction of the trimesic acid derivative.

Abstract: A trisamide compound has the structure of Formula (I) in which R1, R2, and R3 are independently selected from the group consisting of alkyl groups. A polymer composition comprises a trisamide compound of Formula (I) and a polyolefin polymer. The polymer compositions containing a trisamide compound of Formula (I) exhibit very low haze levels and minimal extraction of the trisamide compound.

Abstract: A trisamide compound has the structure of Formula (I) in which R1, R2, and R3 are independently selected from the group consisting of alkyl groups. A polymer composition comprises a trisamide compound of Formula (I) and a polyolefin polymer. The polymer compositions containing a trisamide compound of Formula (I) exhibit very low haze levels and minimal extraction of the trisamide compound.

Abstract: A composition comprises one or more trimesic acid derivatives of Formula (I) in which R1, R2, and R3 are independently selected from the group consisting of alkyl groups. A polymer composition comprises a composition as described above and a polyolefin polymer. The polymer compositions containing a trimesic acid derivative of Formula (I) exhibit very low haze levels and minimal extraction of the trimesic acid derivative.

Abstract: A trisamide compound has the structure of Formula (I) in which R1, R2, and R3 are independently selected from the group consisting of alkyl groups. A polymer composition comprises a trisamide compound of Formula (I) and a polyolefin polymer. The polymer compositions containing a trisamide compound of Formula (I) exhibit very low haze levels and minimal extraction of the trisamide compound.

Abstract: A trisamide compound has the structure of Formula (I) in which R1, R2, and R3 are independently selected from the group consisting of alkyl groups. A polymer composition comprises a trisamide compound of Formula (I) and a polyolefin polymer. The polymer compositions containing a trisamide compound of Formula (I) exhibit very low haze levels and minimal extraction of the trisamide compound.

Abstract: A composition comprises one or more trimesic acid derivatives of Formula (I) in which R1, R2, and R3 are independently selected from the group consisting of alkyl groups. A polymer composition comprises a composition as described above and a polyolefin polymer. The polymer compositions containing a trimesic acid derivative of Formula (I) exhibit very low haze levels and minimal extraction of the trimesic acid derivative.

Abstract: A trisamide compound has the structure of Formula (I) in which R1, R2, and R3 are independently selected from the group consisting of alkyl groups. A polymer composition comprises a trisamide compound of Formula (I) and a polyolefin polymer. The polymer compositions containing a trisamide compound of Formula (I) exhibit very low haze levels and minimal extraction of the trisamide compound.

Abstract: A trisamide compound has the structure of Formula (I) in which R1, R2, and R3 are independently selected from the group consisting of alkyl groups. A polymer composition comprises a trisamide compound of Formula (I) and a polyolefin polymer. The polymer compositions containing a trisamide compound of Formula (I) exhibit very low haze levels and minimal extraction of the trisamide compound.

Abstract: Provided are trisamide compounds and compositions containing the same. In an embodiment, the trisamides are represented by the following formula: wherein R1 represents a univalent group other than hydrogen, and X1 and X2 represent independently selected univalent groups.

Abstract: Provided are trisamide compounds and compositions containing the same. In an embodiment, the trisamides are represented by the following formula: wherein R1 represents a univalent group other than hydrogen, and X1 and X2 represent independently selected univalent groups.

Abstract: The invention relates to an ultrasonic percussion device, of the type including:an ultrasonic wave generator, terminated by an unit (6) transmitting the vibration generated;a wire (8), the near end of which is carried by said unit and the far end of which is set into percussive movement; andlinking means (7) for immobilizing the near end of said wire in said generator unit.According to the invention, said unit (6) is produced from an elastically deformable material and said linking means (7) are formed on said unit in such a way as to form an integral part of the latter, said linking means being capable of occupying a spontaneously close-together position, for which the near end (8A) of said wire (8) is clamped by said unit, and a position deliberately spaced apart by actuation means (14) for which the near end (8A) of said wire can be freed from said unit or engaged in said unit.

Abstract: An ultrasonic percussion device uses an ultrasonic generator attached to one end of a wire by a linking assembly which includes a radially elastically deformable sleeve (7) receiving the end of the wire and provided with a conical flared section (7B); a hole (8) provided in a member (9) integral with the generator and into which the sleeve is able to be introduced, the conical section (7B) of the sleeve (7) coming into contact with a complementary conical wall (8B) provided in the hole, and a clamping element (10) able to cooperate by screwing with the member (9) and to act against the sleeve (7); the device is particularly useful for destroying atheromata in clogged arteries.