EP 1116243 B1 20060322 - ELECTRICAL WIRE INSULATION
Title (en)
ELECTRICAL WIRE INSULATION
Title (de)
ISOLIERUNG VON ELEKTRISCHEN LEITUNGEN
Title (fr)
ISOLANT POUR FIL ELECTRIQUE
Publication
Application
Priority
- GB 9903116 W 19990917
- GB 9820214 A 19980917
Abstract (en)
[origin: WO0017889A1] An electrical wire or cable having insulation comprising (i) at least a first layer of a polyolefin-based formulation, of which at least 20 %, preferably at least 40 %, more preferably at least 60 % or very preferably at least 80 % of the weight of the polymeric portion of the said formulation consists of a carbonyl-containing polymer (homopolymer or copolymer or terpolymer), of which polymer the or at least one constituent monomer is a carboxylic acid ester, preferably an acrylate or acetate, especially an alkyl acrylate (preferably methyl acrylate, ethyl acrylate, propyl acrylate or butyl acrylate), the said monomer itself constituting at least 5 %, preferably at least 9 %, more preferably at least 15 % by weight of the said co-, or ter- polymer when used, and the remainder or the majority of the remainder of the said co-, or ter- polymer preferably being derived from olefinic monomer, preferably ethylene; in contact with (ii) at least a second layer of another material formulation, containing at least 10 %, more preferably at least 50 %, very preferably at least 90 %, especially 100 %, by weight of the second layer, of polyvinylidine fluoride (PVDF), or especially preferably a copolymer based on VDF with a partially or fully fluorinated co-monomer, most preferably a copolymer of VDF and hexafluoropropylene (HFP); wherein the said layers (i) and (ii) whilst in contact with each other have been subjected to cross-linking reaction, preferably by radiation, more preferably ionising radiation, sufficient to prevent delamination of the two layers during a 1 hour acetone immersion test at 23 DEG C, or to increase the peel bond strength between the said layers to at least 5N according to the ASTM B1876-95 method described below preferably increasing the bond strength by at least 50 %, more preferably by at least 100 %, especially by at least 500 % or 1000 %, compared to that between the uncrosslinked layers.
IPC 8 full level
B32B 1/08 (2006.01); B29C 48/15 (2019.01); H01B 3/44 (2006.01); B29C 48/16 (2019.01); B32B 15/082 (2006.01); B32B 15/085 (2006.01); B32B 27/32 (2006.01); H01B 7/02 (2006.01); B29K 27/12 (2006.01); B29K 33/00 (2006.01); B29K 105/22 (2006.01); B29L 31/34 (2006.01)
CPC (source: EP KR)
H01B 3/42 (2013.01 - KR); H01B 3/441 (2013.01 - EP); H01B 3/445 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0017889 A1 20000330; AT E321345 T1 20060415; AU 6101999 A 20000410; AU 766430 B2 20031016; BR 9913843 A 20010814; CA 2340386 A1 20000330; CA 2340386 C 20090414; CN 1318200 A 20011017; CN 1331160 C 20070808; CZ 2001482 A3 20010711; CZ 299046 B6 20080409; DE 69930532 D1 20060511; DE 69930532 T2 20070308; EP 1116243 A1 20010718; EP 1116243 B1 20060322; ES 2260937 T3 20061101; GB 9820214 D0 19981111; HU 226699 B1 20090728; HU P0103585 A2 20020128; HU P0103585 A3 20020429; ID 29877 A 20011018; IL 141338 A0 20020310; IL 141338 A 20061231; JP 2002525819 A 20020813; KR 100638181 B1 20061026; KR 20010079751 A 20010822; NO 20011307 D0 20010315; NO 20011307 L 20010315; NO 324458 B1 20071022; PL 192515 B1 20061031; PL 346214 A1 20020128; RO 121928 B1 20080730; RU 2231147 C2 20040620; TR 200100761 T2 20010921; ZA 200101181 B 20020513
DOCDB simple family (application)
GB 9903116 W 19990917; AT 99947633 T 19990917; AU 6101999 A 19990917; BR 9913843 A 19990917; CA 2340386 A 19990917; CN 99811030 A 19990917; CZ 2001482 A 19990917; DE 69930532 T 19990917; EP 99947633 A 19990917; ES 99947633 T 19990917; GB 9820214 A 19980917; HU P0103585 A 19990917; ID 20010554 A 19990917; IL 14133801 A 20010208; IL 14133899 A 19990917; JP 2000571464 A 19990917; KR 20017002898 A 20010306; NO 20011307 A 20010315; PL 34621499 A 19990917; RO 200100291 A 19990917; RU 2001107973 A 19990917; TR 200100761 T 19990917; ZA 200101181 A 20010212