Water resistant ANFO compositions

  • US 4,933,029 A
  • Filed: 07/26/1989
  • Issued: 06/12/1990
  • Est. Priority Date: 07/26/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. A water-resistant granular coated explosive comprising an inorganic oxidizing salt from 80-94%, a carbonaceous fuel upto 6% and a coating of a hydrophilic cold-water swellable thickener from about 11/2-6% with a hydrophobic water-repelling compound from about 0.1-6% on said salt.

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