Abstract: The present invention relates to a process for preparing a polyester carbonate on the basis of cycloaliphatic diacids and at least one 1,4:3,6-dianhydrohexitol and at least one further aliphatic dihydroxy compound, to a polyester carbonate and to a molding compound and a molded product containing the polyester carbonate. The polyester carbonates according to the invention are characterized by good mechanical properties and molecular weights.

Abstract: The present invention relates to a process for preparing a polyester carbonate on the basis of diacids and at least one 1,4:3,6-dianhydrohexitol and at least one additional cycloaliphatic dihydroxy compound, to a polyester carbonate and to a molding compound and a molding body containing the polyester carbonate. The polyester carbonates according to the invention are characterized by a high proportion of bio-based structural motifs and good mechanical properties and molecular weights.

Abstract: The present invention relates to a process for preparing a polyester carbonate on the basis of aliphatic diacids and aliphatic diols and to the polyester carbonate prepared according to the process and to a moulding mass and moulding body containing the polyester carbonate. The process according to the invention is a direct synthesis in which all structural elements forming the subsequent polyester carbonate are already present as monomers in the first process step and in which two catalysts are used.

Abstract: The present disclosure relates to a process for producing polysiloxane-polycarbonate block co-condensates using specially terminated polysiloxanes, to polysiloxane-polycarbonate block co-condensates having at least one Si—O—C bond and fine siloxane domains, to a moulding compound including the polysiloxane-polycarbonate block co-condensate, to a moulded part containing the polysiloxane-polycarbonate block co-condensate, to the use of a special bisphenol as a terminating group of a polysiloxane to increase the reactivity of the polysiloxane and to the use of a specially terminated polysiloxane in the production of a polysiloxane-polycarbonate block co-condensate to increase the proportion of covalent bonds between the siloxane blocks and the polycarbonate blocks.

Abstract: A sensor system comprises a LiDAR unit, a camera for visible light and a cover through which light arrives at the LiDAR unit and the camera. The cover comprises a layer containing dyes. The light transmission of the cover in the range from 380 nm to 780 nm is 3% to 25% and in the range from 380 nm to 1100 nm is 40% or more. The attenuation of the LiDAR signal by the cover is such that at least 65% of the original signal intensity reaches the LiDAR detector. The layer containing dyes contains a composition comprising i) at least 70% by weight of a transparent thermoplastic polymer, ii) at least one green and/or red dye and iii) at least one red and/or violet dye. The product of the sum of the weight % fractions of dyes ii) and iii) and the thickness of the layer containing dyes is 0.041 to 0.12 wt % mm. Finally, the composition contains 0% to 0.0005% by weight of IR absorbers.

Abstract: The present invention relates to a method for producing composite components with improved interlaminar bonding, the components comprising a carrier, comprising polycarbonate and at least one polyurethane layer that is in direct contact with this carrier. The invention also relates to composite components with improved interlaminar bonding, and to the use of a polycarbonate with defined OH content as a carrier material in the production of composite components with improved interlaminar bonding.

Abstract: A dosing system for transferring an aseptic fluid in dosages into a container, comprising a peristaltic pump configured such that the filling accuracy for fill volumes of the aseptic fluid<100 ?L is ±3 ?L.

Abstract: A method for commissioning a pneumatic actuator device, which includes a pneumatic drive cylinder and a pneumatic control module mounted on the pneumatic drive cylinder, wherein a plurality of commissioning steps to be carried out for commissioning are displayed by means of a graphical display device separate from the control module, the graphical display device in particular being a tablet computer or a mobile telephone, and wherein a control module state is being transmitted from the control module to the display device via a communication link between the control module and the display device, and the commissioning steps are being displayed taking into account the transmitted control module state.

Abstract: The present invention relates to a method for preparing a polyester carbonate starting from cycloaliphatic diacids and aliphatic diols and to the polyester carbonate prepared by the method. The method according to the invention is a direct synthesis in which all the structural elements that form the subsequent polyester carbonate are already present as monomers in the first step of the method.

Abstract: A multi-stage process for continuous production of a polysiloxane-polycarbonate block copolymer by polycondensation is disclosed where in a first stage an oligocarbonate and a hydroxyaryl-terminated polysiloxane are provided and in a second stage at least one special condensation reactor is used. A certain amount of a particular co-catalyst is added and this co-catalyst is added upstream of the first special condensation reactor. The polysiloxane-polycarbonate block copolymer produced by the process according to the invention has a high proportion of small polysiloxane domains and features good mechanical properties, in particular tough fracture behaviour in the notched impact test according to ISO 7391/ISO 180A, good processability, for example in injection moulding or in extrusion, and good flowability.

Abstract: A continuous process for producing a polysiloxane-polycarbonate block copolymer by polycondensation, comprising use of at least one thin-film evaporator, where this at least one thin-film evaporator includes at the circumference at least two wiper blade elements which rotate in the at least one thin-film evaporator. An oligocarbonate is reacted with a hydroxyaryl-terminated polysiloxane to afford a polysiloxane-polycarbonate block copolymer. In the reaction of the oligocarbonate with the hydroxyaryl-terminated polysiloxane using at least one thin-film evaporator, certain process parameters are observed. The polysiloxane-polycarbonate block copolymer produced has a small volume fraction of large polysiloxane domains at simultaneously narrow size distribution of the polysiloxane domains and exhibits good mechanical properties, in particular tough fracture behaviour, good processability, and good flowability.

Abstract: The invention relates to a sensor system (200, 300, 400) for a motor vehicle, comprising a sensor housing and an active or passive sensor (102) arranged therein and held on a movable sensor holder (201, 401), having a sensor technology based on radiation detection and a measurement apparatus assigned to the sensor (102) and a control apparatus, coupled to said measurement apparatus, for the sensor holder (201, 401), wherein the sensor housing has a cover (106, 301) that is signal-transmissive for the sensor (102) on its side located in the detection direction of the sensor (102), and wherein the detection range (108, 109) of the sensor (102) in the region of the signal-transmissive cover (106, 301) has a lower extent than the signal-transmissive cover (106, 301), wherein the sensor system (200, 300, 400) is characterized in that the measurement apparatus is designed such that it is suitable for checking, in the detection range of the sensor (102), whether and in which section the signal-transmissive cover (10

Abstract: The invention relates to opaque colored multilayer articles having a substrate layer based on polycarbonate or polymethylmethacrylate. The compositions of the substrate layer contain a titanium dioxide having particular properties as white pigment. Compared to the Kronos® 2230 white pigment which is conventionally used as white pigment for corresponding compositions and has more particularly been specially matched to polycarbonate, it is possible to achieve considerably higher weathering stability of the colored shaped bodies provided that a UV absorber-containing coating has been applied to the substrate layer. Color stability and gloss are maintained even after weathering, and brilliant colors can thus be assured.

Abstract: The invention relates to a sensor system (200, 300) for a vehicle, in particular a motor vehicle, comprising a sensor housing and an active or passive sensor (102) arranged therein, having a sensor technology based on radiation detection and a measurement apparatus assigned to the sensor (102), wherein the sensor housing has a cover (106) that is signal-transmissive for the sensor (102) on its side located in the detection direction of the sensor (102), and wherein the detection range of the sensor (102) in the region of the signal-transmissive cover (106) has a lower extent than the signal-transmissive cover (106), wherein the sensor system (200, 300) is characterized in that the sensor (102) is assigned a movable deflection apparatus (201), coupled to a control apparatus, for deflecting the radiation of the sensor (102), wherein the measurement apparatus is designed such that it is suitable for checking, in the detection range of the sensor (102), whether and in which section the signal-transmissive cover (

Abstract: The present disclosure relates to a mixture including oligoesters as described herein. The present disclosure relates to polyester carbonates including an ester block as described herein, and the present disclosure also relates to a process for preparing polyester carbonates having an ester block by melt transesterification as described herein.

Abstract: The present invention relates to a method for preparing a polysiloxane-polycarbonate block co-condensate, wherein a siloxane component containing both aliphatic and aromatic groups is used as a mediator. The invention also relates to a polycarbonate composition and also to the use of the special siloxane component for reducing the particle size distribution of the siloxane domains in a polysiloxane-polycarbonate block co-condensate.

Abstract: -- The present invention relates to a process for preparing a polyestercarbonate proceeding from cycloaliphatic diacids and at least one 1,4:3,6-dianhydrohexitol and at least one further aliphatic dihydroxy compound, to the polyestercarbonate prepared by the process and also to a molding compound and a molded article including the polyestercarbonate. The process according to the invention is a direct synthesis in which all the structural elements that form the subsequent polyestercarbonate are already present as monomers in the first process step.

Abstract: The invention relates to a composition obtainable by mixing polycarbonate, unsized talc and a specific anhydride-modified alpha-olefin polymer, wherein the amounts of the talc and the specific anhydride-modified alpha-olefin polymer are matched to one another such that, for every 10 parts by weight of the talc, 0.10 to 1.4 parts by weight of the anhydride-modified alpha-olefin polymer are used. It has been shown that in situ sizing of talc with the wax can minimize the degradation of the polycarbonate only in the course of mixing with the polycarbonate and, at the same time, properties such as multiaxial impact resistance and flowability can be improved.

Abstract: The invention relates to a vehicle utilizing a LiDAR sensor system for driver assistance systems. A composition consisting of a thermoplastic material based on polycarbonate is used here for forming the substrate layer of a cover for the sensor with respect to the surroundings. The cover has a polysiloxane-based topcoat layer comprising a combination of organically modified silane with a silica sol, the silicon dioxide having a d90 particle size of less than 0.50 micron, in order to achieve high abrasion resistance and weathering stability.

Abstract: The present invention relates to a process for preparing a polyester carbonate on the basis of diacids and at least one 1,4:3,6-dianhydrohexitol and at least one additional cycloaliphatic dihydroxy compound, to a polyester carbonate and to a molding compound and a molding body containing the polyester carbonate. The polyester carbonates according to the invention are characterized by a high proportion of bio-based structural motifs and good mechanical properties and molecular weights.