×

PROCESS FOR THE PREPARATION OF A BRANCHED POLYOLEFIN

  • US 20170355786A1
  • Filed: 12/23/2015
  • Published: 12/14/2017
  • Est. Priority Date: 12/23/2014
  • Status: Active Grant
First Claim
Patent Images

1. A process for the preparation of a branched polyolefin, said process comprising the step of:

  • A) a polymerization step comprising copolymerizing at least one first type of olefin monomer and at least one second type of olefin monomer containing a main group metal hydrocarbyl chain transfer agent functionality according to Formula 1a;


    R100(n-2)R101Mn+R102



    (Formula 1a)using a catalyst system to obtain a polyolefin having one or multiple main group metal end-functionalized branches;

    wherein said catalyst system comprises;

    i) a metal catalyst or catalyst precursor comprising a metal from Group 3-10 of the IUPAC Periodic Table of elements, andii) optionally a co-catalyst;

    iii) optionally an additional chain transfer and/or chain shuttling agent;

    whereinM is a main group metal;

    n is the oxidation state of M; and

    R100, R101 and R102 of Formula 1a are each independently selected from the group consisting of a hydride, a C1-C18 hydrocarbyl group, or a hydrocarbyl group Q with the proviso that at least one of R100, R101 and R102 is a hydrocarbyl group Q, wherein hydrocarbyl group Q is according to Formula 1b;

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×