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Preparation method of organic zinc catalyst and poly(alkylene carbonate) resin

  • US 10,047,032 B2
  • Filed: 06/09/2015
  • Issued: 08/14/2018
  • Est. Priority Date: 06/13/2014
  • Status: Active Grant
First Claim
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1. A preparation method of an organic zinc catalyst, the preparation method comprising:

  • providing a zinc precursor surface-treated with a dispersant; and

    reacting the surface-treated zinc precursor with a dicarboxylic acid having 3 to 20 carbon atoms to form a zinc dicarboxylate-based catalyst,wherein the reaction step is performed under a condition at which the number of moles of the dicarboxylic acid present in a reaction system is larger than that of the zinc precursor throughout the entire reaction step,wherein the dispersant is an anionic surfactant.

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