ADDITIVE MASTERBATCH WITH A C3-C5 ALPHA-OLEFIN HOMO- OR COPOLYMER IN THE CARRIER

摘要

The present invention relates to a polyethylene composition comprising: a) a polyethylene having cross-linkable silicon-containing groups (A); and b) a masterbatch comprising - one or more additives; and - a carrier comprising a C3-C5 alpha-olefin homo or copolymer (B). The present invention further relates to a cross-linked polyethylene composition obtainable by treating the composition according to any one of the preceding claims under cross-linking conditions. The present invention also relates to the following uses: Use of a masterbatch comprising - an additive; and - a carrier comprising a C3-C5 alpha-olefin homo- or copolymer (B) for adding an additive to a polyethylene with cross-linkable silicon- containing groups. Use of C3-C5 alpha-olefin homo- or copolymer (B)as carrier for additive(s) to improve the performance of a silanol condensation catalyst when cross- linking a polyethylene composition further comprising a polyethylene with cross-linkable silicon-containing groups.