Monolithic polymer composition having an absorbing material

  • US 6,194,079 B1
  • Filed: 09/18/1998
  • Issued: 02/27/2001
  • Est. Priority Date: 04/19/1995
  • Status: Expired due to Term
First Claim
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1. An article of manufacture comprising a monolithic composition formed by combining at least the following components:

  • at least about 20% by weight of a polymer having a solubility in water below about 0.1% at 25°

    C. and atmospheric pressure;

    between about 10% to about 70% by weight of a hydrophilic agent having a solubility in water above about 1% at 25°

    C. and atmospheric pressures; and

    at least about 5% by weight of an absorbing agent selected from the group consisting of activated carbon, carbon black, ketcham black and diamond powder;

    wherein at least the hydrophilic agent is heated above its melt point in combination with the polymer and absorbing agent;

    wherein the percent by weight of each component is based on the total weight of the three components;

    wherein the absorbing agent is substantially distributed within the hydrophilic agent; and

    wherein the hydrophilic agent is substantially distributed in channels within the polymer.

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