公开(公告)号：AT172320T

公开(公告)日：1998-10-15

申请号：AT92106900

申请日：1992-04-23

Applicant: BASF AG

Inventor： VOGT HEINZ DR ,  HENNIG INGOLF DR ,  SCHLAG JOHANNES DR ,  MUEHLENBERND THOMAS DR ,  CHOME - -

IPC: C08K5/09 ,  H01B3/44

Abstract: Carboxylic acids of the general formula I where the indices and the variables have the following meanings: R , R and R : independently of one another, a hydrogen atom and a hydroxyl, carboxyl and C1- to C6-alkyl group, x, y and z: independently of one another, 0 or an integer from 1 to 6, and/or their anhydrides are capable of permanently suppressing the formation of water trees in electrical medium- and high-voltage cables containing electrically insulating and/or electrically semiconducting layers based on ethylene homopolymers and/or copolymers. This is even the case if the layers concerned contain water-soluble, basic salts. Accordingly, polymeric mixtures based on ethylene homopolymers and/or copolymers containing the abovementioned carboxylic acids and/or their anhydrides are eminently suitable for manufacturing the electrically insulating and electrically semiconducting layers such as those used in electrical medium- and high-voltage cables.

公开(公告)号：AT145652T

公开(公告)日：1996-12-15

申请号：AT92115460

申请日：1992-09-10

Applicant: BASF AG

Inventor： MUEHLENBERND THOMAS DR ,  CHOME - - ,  KLIMESCH ROGER DR ,  KOEHLER GERNOT DR ,  FISCHER ERNST DR

IPC: C08F2/00 ,  C08F2/34 ,  C08F4/32 ,  C08F8/00 ,  C08F10/02

Abstract: Novel homopolymers and copolymers of ethylene which are suitable for the production of films and sheeting and have a density of from 925 to 940 kg/m , a melt flow index (MFI) at 190 DEG C and a weight of 2.16 kp of