EP 1025568 A1 20000809 - COMPOSITION FOR ELECTRIC CABLES
Title (en)
COMPOSITION FOR ELECTRIC CABLES
Title (de)
ZUSAMMENSETZUNG FÜR ELEKTRISCHE KABEL
Title (fr)
COMPOSITION DESTINEE A DES CABLES ELECTRIQUES
Publication
Application
Priority
- SE 9801894 W 19981021
- SE 9703844 A 19971022
Abstract (en)
[origin: WO9921194A1] A peroxide-cross-linkable ethylene polymer composition for an insulating layer of an electric cable is described. The composition is characterised in that the additives of the composition comprise an N-substituted 2,2,6,6-tetramethylpiperidine compound as an antioxidant and light stabilising agent; and that the composition after 21 days at 135 DEG C has a retained ultimate tensile strength of at least 75 % and a retained ultimate elongation of at least 75 % when tested in accordance with IEC 811. This additive acts as a combined light and thermo-oxidative stabilising agent and inhibits the generation of moisture thereby reducing the risk of water tree formation. Preferably, the composition contains no conventional antioxidants, such as phenolic antioxidants, organic phosphite oxidants and sulphur containing anti-oxidants.
IPC 1-7
IPC 8 full level
C08K 5/00 (2006.01); C08K 5/3435 (2006.01); C08K 5/3492 (2006.01); C08L 23/04 (2006.01); H01B 3/44 (2006.01)
CPC (source: EP KR)
C08K 5/34926 (2013.01 - EP); H01B 3/44 (2013.01 - KR); H01B 3/441 (2013.01 - EP)
Citation (search report)
See references of WO 9921194A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
WO 9921194 A1 19990429; WO 9921194 A8 19990624; AU 726326 B2 20001102; AU 9769098 A 19990510; BR 9812937 A 20001121; CA 2306125 A1 19990429; CN 1114928 C 20030716; CN 1276907 A 20001213; EP 1025568 A1 20000809; JP 2001521264 A 20011106; KR 20010052091 A 20010625; NO 20001913 D0 20000412; NO 20001913 L 20000412; PL 340078 A1 20010115; RU 2191439 C2 20021020; SE 9703844 D0 19971022; TW 589645 B 20040601
DOCDB simple family (application)
SE 9801894 W 19981021; AU 9769098 A 19981021; BR 9812937 A 19981021; CA 2306125 A 19981021; CN 98810461 A 19981021; EP 98951849 A 19981021; JP 2000517423 A 19981021; KR 20007004182 A 20000419; NO 20001913 A 20000412; PL 34007898 A 19981021; RU 2000112527 A 19981021; SE 9703844 A 19971022; TW 87117406 A 19981021