Co-continuous interconnecting channel morphology composition

  • US 6,486,231 B1
  • Filed: 02/14/2000
  • Issued: 11/26/2002
  • Est. Priority Date: 04/19/1995
  • Status: Expired due to Term
First Claim
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1. A composition having a co-continuous interconnecting channel morphology comprising at least three components,(a) wherein component A is selected from the group of thermoplastics that are semicrystalline polymers and amorphous polymers, wherein the amorphous polymers, have a shear modulus greater than about 8 MPa;

  • (b) wherein component B is a polymer of a hydrophobic agent;

    (c) wherein components A and B are immiscible within each other and, if components A and B react after mixing, components A and B are immiscible prior to reaction;

    (d) wherein component C is a particle of a desiccating composition;

    (e) wherein the volume, fraction of component A represents at least about 50% by volume of the total volume of components A, B and C;

    (f) wherein the preferential affinity between component B and component C is greater than between component A and component C;

    (g) wherein at least two phases are formed, one phase is composed of a majority of component A, and the second phase is composed of a majority of component B and a majority of component C; and

    (h) wherein the two phases form the co-continuous interconnecting channel morphology.

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