Title: Mass polymerization of isopentadiene under acting of rare earth catalyst
Application Number: 85102250 Application Date: 1985.04.01
Publication Number: 1007159 Publication Date: 1987.01.17
Approval Pub. Date: Granted Pub. Date: 1987.11.25
International Classifi-cation: C08F2/02,C08F4/52,C08F136/08
Applicant(s) Name: Changchun Inst., of Applied Chemistry, Chinese Aca Address:
Inventor(s) Name: Wang Fusong, Yang Caiyun
Attorney & Agent: WANG ZHIHUA SONG TIANPING
Abstract:
     The polymerization proceeds at a wide range of temp. of -78~100 deg.C. The catalyst system may be neodymium compound (or praseodymium-neodymium enrichments)-chlorides-aluminium alkyls (or aluminium alkyl hyarides); and Nd-trichloride (or Nd-Pr-enrichments)-alcohol-trialkyl. In comparison with the prior arts of solvent polymerization, the bulk polymerization can save energy, reduce the amount of catalyst and improve properties of the isoprene rubber.
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