Process for production of polyamideimide resin microparticles, and polyamideimide resin microparticles

Process for production of polyamideimide resin microparticles, and polyamideimide resin microparticles

  • CN 102,597,070 A
  • Filed: 10/06/2010
  • Published: 07/18/2012
  • Est. Priority Date: 11/19/2009
  • Status: Active Application
First Claim
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1. the preparation method of polyamide-imide resin particulate is characterized in that, comprises following dissolution process and separates out operation:

  • [dissolution process]Be selected from following (a1) and operation (b1);

    (a1) polyamide-imide resin is dissolved in the organic solvent, processes the operation that polyamide-imide resin concentration is lower than the polyamide-imide resin lysate A1 of 5 quality %,(b1) polyamide-imide resin is dissolved in the organic solvent, processes the operation that polyamide-imide resin concentration is lower than the polyamide-imide resin lysate B1 of 10 quality %;

    [separating out operation](a2) with polyamide-imide resin lysate A1 add to do not contain tensio-active agent in fact make in the solvent that the polyamide-imide resin particulate separates out the operation that the polyamide-imide resin particulate is separated out;

    (b2) polyamide-imide resin lysate B1 is carried out the flash distillation partial crystallization, the operation that the polyamide-imide resin particulate is separated out.

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