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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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Application filed by Sumitomo Chemical Co LtdfiledCriticalSumitomo Chemical Co Ltd
Priority to JP13482480ApriorityCriticalpatent/JPS5759906A/ja
Publication of JPS5759906ApublicationCriticalpatent/JPS5759906A/ja
Publication of JPH0153283B2publicationCriticalpatent/JPH0153283B2/ja
Gas phase polymerisation of olefins in which growing polymer particles are recycled under gravity from a first zone through a second zone and back to the first zone