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SALT WATER SWELLABLE COMPOSITIONS AND ARTICLES

  • US 20110045726A1
  • Filed: 08/19/2009
  • Published: 02/24/2011
  • Est. Priority Date: 08/19/2009
  • Status: Active Grant
First Claim
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1. A composition capable of swelling in salt water comprising:

  • a) about 30 wt. % to about 60 wt. % of a smectite clay;

    b) about 5 wt. % to about 25 wt. % of a partially cross-linked acrylamide/partially neutralized acrylic acid copolymer;

    c) about 3 wt. % to about 15 wt. % of at least one elastomeric resin;

    d) about 5 wt. % to about 30 wt. % of a cationic flocculant; and

    e) about 0.5 wt. % to about 25 wt. % of at least one primary plasticizing agent for the elastomeric resin.

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