Patent ID: 9133320
Filing Date: 2015-09-15
Classification: C08K,H01B

Abstract:
1. A polyolefin composition comprising a. a polyolefin (A), b. a benzil derivative voltage stabilizer (B) comprising the structural unit according to the following formula (I): wherein R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 independently are hydrogen, or a hydrocarbyl group which optionally contain heteroatoms selected from the group consisting of Si, N, Po, O, and S; or at least two of said R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 together with the ring atoms of the ring system of formula (I) they are attached to, form a further aromatic or non-aromatic ring fused to the ring system of formula (I), and wherein the ring system of formula (I) with said at least one fused further ring optionally further bear one to eight substituents, R1′ to R8′, each of which are independently selected from said same groups as R1 to R10; and n=2 to 9; with the proviso that (i) at least one of said R1, R2, R3, R4, R5, R6, R7, R8, R9 or R10, or at least one of said R1′ to R8′, is selected from the group consisting of —N(R11)(R12) —Ar—N(R11)(R12), —O(R13), and —Ar—O(R13), wherein R11 and R12 are independently hydrocarbyl groups which optionally contain heteroatoms, Ar is an aryl group which optionally contain heteroatoms, and R13 is H or a hydrocarbyl group which optionally contain heteroatoms.