Production method for polyacetal copolymer

Production method for polyacetal copolymer

  • CN 104,822,721 A
  • Filed: 10/25/2013
  • Published: 08/05/2015
  • Est. Priority Date: 11/27/2012
  • Status: Active Application
First Claim
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1. the manufacture method of a Copolyacetal, wherein, using trioxane as main monomer (a), when manufacturing Copolyacetal using the cyclic ether and/or cyclic formal with at least one C-C as comonomer (b), the heteropolyacid Ru shown in following general formula (1) is used to carry out copolymerization as polymerizing catalyst (c), the carbonate of alkali metal or alkali earth metal is added in reaction product, supercarbonate or carboxylate salt, or its hydrate (d) carries out melting mixing process and makes polymerizing catalyst (c) inactivation,H m[M 1x·

  • M 2yO Z

    nH 2

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    (1) In formula (1), M 1represent the central element comprising one or both elements being selected from P and Si, M 2represent more than one the coordination element being selected from W, Mo and V, x represents more than 1 and the integer of less than 10, and y represents more than 6 and the integer of less than 40, and z represents more than 10 and the integer of less than 100, and m represents the integer of more than 1, and n represents more than 0 and the integer of less than 50.

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