Catalyst system and process for olefin polymerization

Details Catalyst system and process for olefin polymerization Catalyst system and process for olefin polymerization

2011-07-26

2011-07-26

Lu, Caixia (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S133000, C526S134000, C526S135000, C526S348000, C526S943000

Reexamination Certificate

active

07985816

ABSTRACT:
The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R1R2R3AH]+[Y]−, wherein [Y]−is a non-coordinating anion (NCA), A is nitrogen or phosphorus, R1and R2are hydrocarbyl groups or heteroatom-containing hydrocarbyl groups and together form a first, 3- to 10-membered non-aromatic ring with A, wherein any number of adjacent ring members may optionally be members of at least one second, aromatic or aliphatic ring or aliphatic and/or aromatic ring system of two or more rings, wherein said at least one second ring or ring system is fused to said first ring, and wherein any atom of the first and/or at least one second ring or ring system is a carbon atom or a heteroatom and may be substituted independently by one or more substituents selected from the group consisting of a hydrogen atom, halogen atom, C1to C10alkyl, C5to C15aryl, C6to C25arylalkyl, and C6to C25alkylaryl, and R3is a hydrogen atom or C1to C10alkyl, or R3is a C1to C10alkylene group that connects to said first ring and/or to said at least one second ring or ring system. The present application also relates to a process for the polymerization of olefins, preferably propylene, using this and other catalyst systems, as well as to polymers made by said process.

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