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Polysaccharides, methods for preparing such polysaccharides and fluids utilizing such polysaccharides

  • US 4,579,942 A
  • Filed: 09/26/1984
  • Issued: 04/01/1986
  • Est. Priority Date: 09/26/1984
  • Status: Expired due to Term
First Claim
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1. A water-soluble cellulose ether containing pendent vic dihydroxy structure having or capable of assuming a cis geometry and having a shear-thermal stability characteristic of at least about 30 at 250°

  • F. for a 0.6 percent by weight aqueous solution of said cellulose ether crosslinked by a polyvalent metal ion.

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