Basf Aktiengesellschaft

Basf Se Corporation

Klaus Becker

Klaus Schoettle

Guenter Leuchtmann

Hans Schmid

Dirk Bethke

Elena Capito'

The present invention relates to process for the preparation of a compound of formula (1), wherein Rand Rare independently from each other C-Calkyl, which comprises reacting a compound of formula (2), with a formaldehyde source in presence of a palladium or platinum catalyst at a hydrogen pressure of 5×10mPa to 200×10mPa.

Process for the preparation of piperidine compounds

The generation of tape tension, based on the capacity for elastic flow of elastomeric incompressible layers, in a tape transport apparatus employing at least one capstan in contact with supply and take-up reels of tape is accomplished by producing a higher compressive force at the point of contact between the take-up reel and the resiliently deformable peripheral portion of the capstan than at the point of contact between the supply reel and the capstan. The difference in compressive forces is brought about by an additional force which is produced by means of a drivable rotating body and is transmitted to the tape reel carriers by means of a cable which is guided over this rotating body.

Process and device for generating tape tension in a tape transport

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Ludwigshafen, Germany

Klaus Becker