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Process for cleaner production of chlorinated rubber without using carbon tetrachloride and water

  • US 8,268,931 B2
  • Filed: 06/24/2008
  • Issued: 09/18/2012
  • Est. Priority Date: 05/23/2008
  • Status: Active Grant
First Claim
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1. A method for making chlorinated rubber, comprising the steps ofusing 1,1,2-trichloroethane as a solvent and iodine as a catalyst,reacting natural rubber with an excessive amount of gaseous chlorine at 60-100°

  • C. for 3-8 hours in presence of the 1,1,2-trichloroethane and iodine, anddrying a product of the reaction.

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