×

Additive combination for hydraulic cement compositions

  • US 4,375,987 A
  • Filed: 11/23/1981
  • Issued: 03/08/1983
  • Est. Priority Date: 11/23/1981
  • Status: Expired due to Term
First Claim
Patent Images

1. An improved additive for hydraulic cement compositions which additive is readily dispersible in water and comprises an oil-in-water emulsion in which the solids portion is comprised of a major proportion of a water-insoluble, water-repelling acid component to impart water-repelling properties to said cement, from about 3 to about 30 percent by weight of a set-retarding component for said cement, emulsifier, and a stabilizing component comprising a low molecular weight non-ionic, water soluble organic compound, the amount of said stabilizing component being at least sufficient to maintain said emulsion stable when exposed to low temperature.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×