Abstract: Dental prosthetic assembly (27) comprising a dental implant (2a, 2b) and a transfixed dental prosthesis (3). A connecting device (1) comprises: a lock (5) which has at least two radial wings (6a) and is mounted rotatably and retained in translation in one of dental implant (2a, 2b) or dental prosthesis (3), a retention cavity (15), provided on its periphery with protuberances (16a) extending radially towards the centre of the retention cavity (15), which is formed in the other of dental implant (2a, 2b) or dental prosthesis (3). The radial wings (6a) and the protuberances (16a) are configured and dimensioned in such a way as to cooperate by rotation of the lock (5) in order to keep the dental prosthesis (3) transfixed on the dental implant (2a, 2b), and in such a way as to allow the lock (5) and its radial wings (6a) to penetrate into the retention cavity (15) by a simple movement of axial translation.

Abstract: Disclosed are compounds of formula (1) and (2) and/or E/E-, E/Z- or Z/Z geometrical isomer forms thereof; wherein R1-R5, R1-R11 and A are defined as in description. The compounds are used as UV absorbers for protecting household products from photolytic and oxidative degradation, as plastic additives, preferably for food and pharmaceutical packaging applications, for preventing photo-degradation of food by incorporation of the compounds of formula (1?) and/or (2?) into transparent food containers, for protection of UV-A sensitive drugs from photo-degradation by incorporation of UV absorber in transparent blister foils or transparent pharmacy containers, as additives for photographic and printing applications, as additives for electronic applications and protecting the ingredients in agriculture applications.

Abstract: The present invention relates to a composition comprising, in a cosmetically acceptable carrier, at least one UV screening system, characterized in that it comprises: (i) at least one screening agent of lipophilic hydroxybenzophenone type; and (ii) at least one silicon-comprising s-triazine of formula (III) substituted by at least two alkylaminobenzoate groups. In some embodiments, the composition also includes: (iii) a dibenzoylmethane derivative.

Abstract: Assembly comprising a component and a one-piece axial limit stop device (1) intended to be placed in a bore of said component in order to retain an element therein, comprising an annular ring (2) with symmetry of revolution about a central axis (I-I), and comprising at least one angular portion (3, 4) rigidly connected to the annular ring (2), developing in an arc between a first end (3a, 4a), joined to the distal end (2b) of the annular ring (2), and a second, free end (3b, 4b). The angular portion (3, 4) is in part movable from its first end (3a, 4a), in a transverse plane perpendicular to the central axis (I-I), between a retracted position and at least one protruding position, being elastically returned permanently to the protruding position. In the retracted position, the angular portion (3, 4) is included within the volume of a cylinder continuing the outer cylindrical surface of the annular ring (2).

Abstract: Transfixed multiple dental prosthesis (1) intended to be attached and fixed to a plurality of dental implants by means of several transfixing screws (4), each having a shank (5) with a threaded portion (6) intended to be received by screwing in a respective dental implant. Each transfixing screw (4) is held captive in a respective bore (7) formed in the transfixed multiple dental prosthesis (L) and extending along a respective axial direction (I-I). Each transfixing screw (4) is movable in rotation about the axial direction (I-I) of the respective bore (7) and is movable in translation along the axial direction (I-I) of the respective bore between a retracted position and at least one screwing position. In the retracted position, the threading (8) of the threaded portion (6) of the transfixing screw (4) does not protrude from the bore (7).

Abstract: The process for preparing 2-hydroxyphenyl alkenyl benzotriazole compounds and the process for preparing siloxane compounds containing 2-hydroxyphenyl benzotriazole function are disclosed.

Abstract: Disclosed is an infrared optical sensor for the continuous analysis of a liquid flowing in a pipe. The sensor includes, in a housing, a central section of duct through which the liquid to be analyzed flows, and a spectral analysis device using a light beam, including an infrared source which emits a signal which is received by a receiving device having passed through the liquid, an optical component which allows the light beam to pass through the liquid, and a support plate which carries the infrared source and the receiving device. The liquid to be analyzed circulates through a loop formed by walls in the form of an arch of the optical component and by a projection of the housing in the optical component. A sealing gasket is compressed between the optical component and the housing, in order to prevent any diffusion of liquid on the interior of the housing.

Abstract: The present invention relates to the use of at least one 2-methylsuccinic acid diester derivative of formula (I) below: in a composition comprising, in a cosmetically acceptable medium, at least one liquid fatty phase and at least one lipophilic active agent, for dissolving the said active agent in the said liquid fatty phase and/or for improving the solubility of the said active agent in the said solid fatty phase. The present invention relates especially to a composition comprising, in a cosmetically acceptable medium, at least one liquid fatty phase, characterized in that it contains at least one 2-methylsuccinic acid ester derivative of formula (I) and at least one lipophilic active agent.

Abstract: The present invention relates to a cosmetic composition containing a combination i) of at least one screening agent of the dibenzoylmethane derivative type and ii) of at least one particular hydrophilic or water-soluble merocyanin UV-screening agent, especially corresponding to one of the formulae (I) or (II) below: in which at least one or two of the radicals contain: either an alkylsulfonate radical in its acid or salified form or one or two hydroxyl radicals. The invention also relates to a process for the radiation-photostabilization of at least one screening agent of the dibenzoylmethane derivative type with an effective amount of at least one particular hydrophilic or water-soluble merocyanin UV-screening agent, especially corresponding to one of the formulae (I) or (II).

Abstract: A process for preparing a siloxane compound comprising a 2-hydroxyphenyl benzotriazole function which comprises at least one step in which a reaction for hydrosilylation of a compound 2-hydroxyphenyl benzotriazole comprising a substituent having a terminal double bond with a siloxane compound comprising an SiH function is carried out in the presence of a catalyst and of at least one volatile organic solvent corresponding to one of formula (VII) or (VIII). in which R4 and R5, which may be identical or different, represent a linear or branched C1-C4 alkyl radical, with the proviso that the sum of the carbons of R4 and R5 is less than or equal to 6; y is and integer between 1 and 3; R6 which may be identical or different, are linear or branched C1-C3 alkyl radicals, with the proviso that the sum of the carbons of R6 is less than or equal to 6 is disclosed.

Abstract: The present invention relates to a cosmetic composition containing a combination i) of at least one screening agent of the dibenzoylmethane derivative type and ii) of at least one particular hydrophilic or water-soluble merocyanin UV-screening agent, especially corresponding to one of the formulae (I) or (II) below: in which at least one or two of the radicals contain: either an alkylsulfonate radical in its acid or salified form, or one or two hydroxyl radicals. The invention also relates to a process for the radiation-photostabilization of at least one screening agent of the dibenzoylmethane derivative type with an effective amount of at least one particular hydrophilic or water-soluble merocyanin UV-screening agent, especially corresponding to one of the formulae (I) or (II).

Abstract: The present invention relates to a cosmetic composition comprising the combination i) of at least one screening agent of the dibenzoylmethane derivative type and ii) of at least one specific merocyanine dicyano or cyanoacetate derivative. It also relates to a method for the photostabilization, with regard to radiation, of at least one screening agent of the dibenzoylmethane derivative type by an effective amount of at least one specific merocyanine dicyano or cyanoacetate derivative.

Abstract: A dental handpiece (1) includes a head (2) suitable for driving a tool, a body (3) having a proximal section (4) extending in a longitudinal direction (I-I) and intended to be connected, by a proximal end surface (5), to a distal surface of a drive motor, an indexing device (8) suitable for rotatably positioning the body (3) of the dental handpiece (1) about the longitudinal direction (I-I) relative to the drive motor, an electric device (9) for lighting the working area of the tool, and a device (10) for supplying electric power to the electric lighting device (9). The indexing device (8) is retractable or set back from the proximal end surface (5), and the electric supply device (10) includes a retractable electrical connection device (11).

Abstract: Dental prosthetic assembly (27) comprising a dental implant (2a, 2b) and a transfixed dental prosthesis (3). A connecting device (1) comprises: a lock (5) which has at least two radial wings (6a) and is mounted rotatably and retained in translation in one of dental implant (2a, 2b) or dental prosthesis (3), a retention cavity (15), provided on its periphery with protuberances (16a) extending radially towards the centre of the retention cavity (15), which is formed in the other of dental implant (2a, 2b) or dental prosthesis (3). The radial wings (6a) and the protuberances (16a) are configured and dimensioned in such a way as to cooperate by rotation of the lock (5) in order to keep the dental prosthesis (3) transfixed on the dental implant (2a, 2b), and in such a way as to allow the lock (5) and its radial wings (6a) to penetrate into the retention cavity (15) by a simple movement of axial translation.

Abstract: UV-photoprotective, topically applicable cosmetic/dermatological compositions contain: (a) at least one silicon-containing s-triazine substituted with two aminobenzoate or aminobenzamide groups of specific formula (I), and (b) at least one non-silicon-containing lipophilic 1,3,5-triazine compound UV-screening agent, such compositions having improved photoprotective effectiveness in the UV-B range and the 1,3,5-triazine compound(s) being improvedly soluble therein.

Abstract: The present invention relates to a cosmetic composition comprising the combination i) of at least one screening agent of the dibenzoylmethane derivative type and ii) of at least one specific merocyanine dicyano or cyanoacetate derivative. It also relates to a method for the photostabilization, with regard to radiation, of at least one screening agent of the dibenzoylmethane derivative type by an effective amount of at least one specific merocyanine dicyano or cyanoacetate derivative.

Abstract: The present invention relates to a cosmetic and/or dermatological composition comprising in a physiologically acceptable medium at least one merocyanine derivative of formula (1) or (2) and/or its E,E-, E,Z- or Z,Z-geometrical isomer forms: comprising specific polar groups consisting of hydroxyl- and ether-functionalities. Another object of the present invention relates to a cosmetic process for controlling and/or improving the darkening of the skin under exposure to UV radiation and the homogeneity of the colour of the complexion which comprises the application onto the skin of a cosmetic composition as above defined. Another object of the present invention relates to a cosmetic process for protecting the keratinic materials and particularly the skin against photo-ageing which comprises the application onto the keratinic material of a cosmetic composition as above defined.

Abstract: A device for centering and guiding at least one drill bit of a dental handpiece when drilling a hole in the jaw of a patient in cooperation with a surgical guide equipped with a tubular drill bushing. A support holds a tubular guide sleeve permanently in a coaxial and sliding position with respect to the drill bit. The tubular guide sleeve is able to engage with slight play in the tubular drill bushing. The support insures the engagement of the guide sleeve in the tubular drill bushing at the latest when the drill bit starts to drill in the patient's jaw, thus insuring the centering and guiding of the drill bit.

Abstract: Disclosed is an infrared optical sensor for the continuous analysis of a liquid flowing in a pipe. The sensor includes, in a housing, a central section of duct through which the liquid to be analyzed flows, and a spectral analysis device using a light beam, including an infrared source which emits a signal which is received by a receiving device having passed through the liquid, an optical component which allows the light beam to pass through the liquid, and a support plate which carries the infrared source and the receiving device. The liquid to be analyzed circulates through a loop formed by walls in the form of an arch of the optical component and by a projection of the housing in the optical component. A sealing gasket is compressed between the optical component and the housing, in order to prevent any diffusion of liquid on the interior of the housing.

Abstract: Packaging device (1) for a dental implant (2), comprising first (10a) and second (10b) means of lateral retention of the implant (2), which means are respectively fixed to two mutually opposite first lateral parts (11a) and (11b) of the peripheral lateral wall (4). At least one of the two first lateral parts (11a, 11b) is movable between a first position, in which the first (10a) and second (10b) means of lateral retention of the implant (2) are situated at a first distance from each other, and a second position, in which the first (10a) and second (10b) means of lateral retention of the implant (2) are situated at a second distance from each other, the second distance being shorter than the first distance.