Process for the continuous gas-phase (co-) polymerisation of olefins in a fluidized bed reactor
AssigneeBP Chemicals Limited
InventorsMarc Herzog, Jean-Pierre Isnard, Claudine Viviane Lalanne-Magne, Myung Je Shin
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Abstract
A process for the continuous gas-phase (co-)polymerisation of olefins in a fluidised bed reactor using a Ziegler-Nata type catalyst wherein the polymerisation is performed in the presence of a process aid additive selected from at least one of (1) a polysulphone copolymer; (2) a polymeric polyamine or (3) an oil-soluble sulphonic acid.
Claims26
A process for the continuous gas-phase (co-)polymerisation of olefins comprising (co-)polymerising one or more olefins in a polymerisation zone of a fluidised bed reactor using a Ziegler-Natta type catalyst in the presence of a process aid additive, wherein the additive comprises at least one of the components selected from the group consisting of (1) a polysulphone copolymer, (2) a polymeric polyamine, and (3) an oil-soluble sulphonic acid and wherein the process aid additive represents from about 0.00001 to about 35 parts by weight per million parts by weight of olefin introduced into the reactor.
A process for the continuous gas-phase (co-)polymerisation of olefins comprising (co-)polymerising ethylene and one or more comonomers selected from but-1-ene, hex-1-ene or methylpent-1-ene in a polymerisation zone of a fluidised bed reactor using a Ziegler-Natta type catalyst in the presence of a process aid additive, wherein the additive comprises at least one of the components selected from the group consisting of
- (1) a polysulphone copolymer,
- (2) a polymeric polyamine, and
- (3) an oil-soluble sulphonic acid.
Dependencies are inferred from the claim text.