Method For Decolorizing Plastic Polyolefin Material

  • Published: Apr 20, 2017
  • Earliest Priority: Oct 16 2015
  • Family: 2
  • Cited Works: 0
  • Cited by: 0
  • Cites: 9
  • Additional Info: Full text
Abstract

A method for decolorizing a polyolefin plastic material comprising the steps of: a) providing said plastic polyolefin material in solid form comprising at least one pigment or at least one filler or a mixture thereof infused into said material, said at least one pigment or filler or mixture thereof imparting color to said polyolefin plastic material; b) dissolving said polyolefin plastic material in an isoparaffinic solvent, c) adding one or more additives selected from bleaching agents and d) submitting the solution obtained in step c) to a hot liquid-solid separation step.


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Document History
  • Publication: Apr 20, 2017
  • Application: Oct 14, 2016
    WO EP 2016074790 W
  • Priority: Oct 16, 2015
    EP EP 15190216 A

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