Polyolefin Composition for Medium/High/Extra High Voltage Cables with Improved Electrical Breakdown Strength

摘要

The present invention is a polyolefin (A), the structural unit comprising the formula according to (I), preferably relates to a polyolefin composition comprising an aromatic compound (B), consist of: Formula Ⅰ] Formula Ⅱ] Wherein Residues R1, R2, R3, R4, R5, R6, R7, or can also be one of the more C- atoms in the phenyl ring to which R8 is attached is a heteroatom such as N, and if the same, R1, R2, R3 , R4, R5, R6, R7, or R8 is not present; X is a phenyl ring are the two directly bonded atoms, or may not, = C (R11) -, -C (R11) 2 -, -C (= Z) -, = N- or -N (R12) - days number and, Y is a phenyl ring are the two directly bonded atoms, or may not, -C (R13) -, -C (R13) 2 -, -C (= Z) -, = N- or -N (R14 ) - it may be and, Z is a divalent atom such as O, R1, R2, R3, R4, R5, R6, R7, R8 and, if present, R11, R12 R13 and R14 is hydrogen or a hetero atom independently which may include hydrocarbyl group; Or wherein R1, R2, R3, R4, R5, R6, R7, if R8 or present, R11, R12 R13 or the R1 with the ring atoms of the ring system of the formula (I) where R14 is attached, R2, R3, R4 , R5, R6, R7, if R8 or present, R11, R12 R13 or at least two of R14 has the formula (I) more aromatic or non-fused to the ring system of - forming the aromatic ring, and wherein at least where one ring system of formula (I) having a fused additional ring is from 1 to 8 substituents (R1 'to R8', each of which is independently selected from R1 to the same group such as R8), but can have a more; However, (i) at least one hydro, which may include a heteroatom hydrocarbyl group among the R1, R2, R3, R4, R5, R6, R7, or at least one of R8, or if the R1 'to R8' presence ego; And (ⅱ) wherein R1, R2, R3, R4, R5, R6, R7, or R8, or if present, said R1 'to R8', R11, R12 R13 or at least one of R14 may contain a hetero atom, at least having six non--H hydrocarbyl group; (Ⅲ) wherein R1, R2, R3, R4, R5, R6, R7, or if any, and the presence of R8, said R1 'to R8', any one of R11, R12 R13 or R14 is to include a hetero atom It can be a hydrocarbyl group, and which, if attached to the aromatic ring of the compound according to formula (I), said hydrocarbyl group must be alpha-atom is in position and no H-; And / or having a structural unit according to the above formula (Ⅱ), preferably which is configured aromatic compound is: wherein residues R1, R2, R3, R4, R5, R6, R7, or naphthyl which R8 is attached one or more C- atoms of the ring may be a trivalent heteroatom, this same case, the residues R1, R2, R3, R4, R5, R6, R7, or R8 is absent; Or wherein R1, R2, R3, R4, R5, R6, R7 or with the ring atoms of the ring system of formula (Ⅱ) which R8 is attached to R1, R2, R3, R4, R5, R6, R7, or at least one of R8 2 dogs add of formula (ⅱ) an aromatic or non-fused ring system of the - ring system adds one to eight substituents of the above with at least one fused ring to form an aromatic ring, wherein the general formula (ⅱ) It has a (R1 'to R8'); And R1, R2, R3, R4, R5, R6, R7 and R8, if, and present, it is as described in said R1 'to R8' is the general formula (I) independently. ;