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butyl rubber

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butyl rubber Basic information
Safety Information
  • Risk Statements 10
  • Safety Statements 16
butyl rubber Usage And Synthesis
  • DescriptionA synthetic copolymer containing from 0.5 to 2.0 molar percent of isoprene, the remainder, respectively, consisting of isobutylene. It is prepared by copolymerization of isobutylene and isoprene in methyl chloride solution, using aluminum chloride as the catalyst. After completion of polymerization, the rubber particles aretreated with hot water containing a suitable food-grade deagglomerating agent, such as stearic acid. Finally, the coagulum is dried to remove residual volatiles.
  • Chemical PropertiesViscosity controlling agent.
  • UsesFood additive.
  • Industrial usesButyl rubbers have outstanding impermeabilityto gases and excellent oxidation andozone resistance. The chemical inertness is furtherreflected in lack of molecular-weightbreakdown during processing, thus permittingthe use of hot-mixing techniques for betterpolymer/filler interaction.
butyl rubber Preparation Products And Raw materials
butyl rubber(9010-85-9)Related Product Information
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