Abstract: A process for preparing ethylene homopolymers and copolymers in a tubular reactor having two or more polymerization zones at temperatures of between 150° C. and 350° C. and pressures in the range from 500 to 5000 bar, using oxygen as initiator, which comprises using, as molar mass regulator, one or more aliphatic ketones of the formula I, where the variable R1 is a C1-C6-alkyl or C3-C12-cycloalkyl, ethylene homopolymers and copolymers obtainable therefrom and their user for producing injection-molded products in the cosmetics, medical and food sectors are described.

Abstract: A connecting arrangement includes at least first and second housings in which at least one conductor of a first cable can be electrically connected to at least one conductor of a second cable fed via a cable receiver. At least one piercing element is electrically connected to the second cable and configured to be inserted transversely into the conductor of the first cable. The cable receiver is constructed as an integral unit with the second housing and the piercing element. A sealing element configured to seal a piercing point of the piercing element is arranged on an inner side of the second housing and the cable receiver is disposed on an outer side of the second housing. The sealing element and the cable receiver are formed in one piece through the second housing.

Abstract: A connecting arrangement comprises at least first and second housings in which at least one conductor of a first cable can be electrically connected to at least one conductor of a second cable fed via a cable receiver. At least one piercing element is electrically connected to the second cable and configured to be inserted transversely into the conductor of the first cable. The cable receiver is constructed as an integral unit with the second housing and the piercing element. A sealing element configured to seal a piercing point of the piercing element is arranged on an inner side of the second housing and the cable receiver is disposed on an outer side of the second housing. The sealing element and the cable receiver are formed in one piece through the second housing.

Abstract: The invention relates to a method for producing ethylene homopolymers and copolymers in a tubular reactor having at least two polymerisation zones, at temperatures of between 150° C. and 350° C. and pressures of between 500 and 5000 bar, using oxygen as an initiator. Said method is characterised in that at least one aliphatic ketone of general formula (I) is used as a molar mass regulator. The variable R1 in formula (I) represents a C1-C6 alkyl or a C3-C12-cycloalkyl. The invention also relates to ethylene homopolymers and copolymers that can be obtained using the inventive method and the use of the same for producing injection-moulded products in the fields of cosmetics, medicine and food.