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Water insoluble alpha-(1,3-glucan) composition

  • US 10,731,297 B2
  • Filed: 10/24/2016
  • Issued: 08/04/2020
  • Est. Priority Date: 10/26/2015
  • Status: Active Grant
First Claim
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1. A substrate, wherein at least a portion of the substrate is coated with a layer of a coating composition, the coating composition comprising:

  • i) water insoluble α

    -(1,3→

    glucan) polymer having 90% or greater a-1,3-glycosidic linkages, less than 1% of α

    -1,3,6-glycosidic branch points and a number average degree of polymerization in the range of 55 to 10,000; and

    ii) at least one pigment, at least one binder, or a combination thereof wherein the layer of coating composition comprises an average pore volume in the range of 0.1 to 0.50 milliliters/gram as measured by mercury porosimetry.

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