摘要:
The invention relates to the novel compound 3,9-bis(1,2,2,6,6-pentamethyl-4-piperidyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5,5]undecane of formula I ##STR1## This compound can be used as stabilizer for organic material, especially as processing stabilizer for polyethylene and polypropylene.
摘要:
Compounds of formula I ##STR1## wherein n is 2-4, R.sub.1 is alkyl, cycloalkyl, phenylalkyl, phenyl or a radical of formula II ##STR2## R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, alkyl, cycloalkyl, phenylalkyl or aryl, or R.sub.3 and R.sub.4 together are alkyl, R.sub.5 and R.sub.6 are independently hydrogen, alkyl, cycloalkyl or phenylalkyl, R.sub.7 is hydrogen, alkyl or a group of the formula --(CH.sub.2).sub.k COOR.sub.8, where k is 0-2 and R.sub.8 is hydrogen or alkyl, and T is an n-valent hydrocarbon radical which may be interrupted by heteroatoms, are useful stabilizers for substrates subject to the deleterious effects of oxygen, heat and/or actinic radiation.
摘要:
Compounds of formula I ##STR1## wherein n is 2-4, R.sub.1 is alkyl, cycloalkyl, phenylalkyl, phenyl or a radical of formula II ##STR2## R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, alkyl, cycloalkyl, phenylalkyl or aryl, or R.sub.3 and R.sub.4 together are alkylene, R.sub.5 and R.sub.6 are independently hydrogen, alkyl, cycloalkyl or phenylalkyl, R.sub.7 is hydrogen, alkyl or a group of the formula --(CH.sub.2).sub.k COOR.sub.8, where k is 0-2 and R.sub.8 is hydrogen or alkyl, and T is an n-valent hydrocarbon radical which may be interrupted by heteroatoms, are useful stabilizers for substrates subject to the deleterious effects of oxygen, heat and/or actinic radiation.
摘要:
The process for reacting olefins with ozone in a carboxylic acid medium using pure oxygen or an oxygenated gas mixture for the ozone production, is improved by recycling the oxygen or the oxygenated gas mixture leaving the ozonizing stage.The oxygen containing gas leaving the ozonizing stage is:(a) washed with the carboxylic acid input of the ozonizing stage,(b) treated with an aqueous solution of an alkalinically reacting substance, and lastly,(c) dried and fed back to the ozonizer.
摘要:
A towing device, for a towing vehicle, with a coupling shaft attached to the towing vehicle, a ball head mounted on the coupling shaft so that the ball head can rotate about a vertical axis, which can be coupled to a coupling counterpart of a trailer vehicle, and with an angle-measuring device by which rotation of the ball head about the vertical axis, relative to the coupling shaft, can be determined, and a force-measuring device by which force exerted by the ball head on the coupling shaft in the direction of the vertical axis can be determined.
摘要:
A modular checking system for fluidic control devices has a display and/or operating unit which includes an inductive interface. The display and/or operating unit is adapted to be detachably connected to a fluidic control device in such a relative position to the latter that the inductive interface is coupled to a corresponding interface of the control device. Encoded signals can be transmitted via the inductive interfaces, the signals containing both information and energy from the control device to the display and/or operating unit for operating the latter.
摘要:
A method and apparatus for detecting events in an electrical network is provided. The method and apparatus measure a plurality of electrical parameters on the electrical network. A precursor event is detected. The measured parameters are captured and analyzed. The precursor event is categorized and a plurality of notifications having integrated data related to the event are electronically transmitted.
摘要:
A covering configuration has a loading space covering and is arranged behind a vehicle seat in a motor vehicle. The loading space covering extends in a transverse direction of the vehicle and is held at its longitudinal ends in corresponding receptacles on the vehicle. It is important that the receptacle on the driver side is configured such that the one longitudinal end of the loading space covering can be inserted horizontally while a receptacle on the passenger side is configured in such a manner that the other longitudinal end of the loading space covering can be pivoted counter to the direction of travel of the motor vehicle into the receptacle and can be latched therein, or vice versa. In this case, the receptacles on the driver and passenger sides are configured and arranged such that installation of the loading space covering is possible from a passenger compartment.
摘要:
The present invention relates to phosphorus compounds containing imidazole groups, to optically active ligands prepared using them, to transition metal complexes which comprise such ligands, and to catalysts which comprise such transition metal complexes. The present invention further relates to the particular processes for preparing the phosphorus compounds, the optically active ligands, the transition metal complexes and the catalysts, and also to the use of the catalysts for organic transformation reactions.
摘要:
A ball and socket joint is provided for a motor vehicle that has a joint housing (1), in the interior space of which a ball shell (2) is arranged. The ball (3) of a ball pivot (4) is accommodated in the ball shell (2). A sensor device (7), for measuring forces and loads, is arranged on a flexurally elastic printed circuit board (6). The printed circuit board is fastened in the joint housing (1) in a flexurally mobile manner. The sensor device (7) measures deflections and mechanical stresses of the sensor printed circuit board (6). A transmission device introduces forces or a bending moments into the sensor printed circuit board (6) in case of a deformation of the ball shell (2). The process makes possible the permanent determination of the state of wear of the ball and socket joint via measurement of the prestressing force of the ball shell.