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US 4,303,450 AGranted
Sprayable insulation composition
AssigneeHigh Efficiency Insulation Technologies, Inc.
InventorDennis J. Hacker
Life of this patent
Estimating the term…
Abstract
A sprayable insulation composition curable at ambient conditions consisting essentially of: (a) a dry mix of 100-120 parts by volume of expanded perlite, 20-30 parts by volume of Portland cement, 0.5-2.0 parts by volume of hydrated lime and 0.1 part by volume of diatomite admixed with (b) an aqueous solution of 0.25-2 ounces per Imperial gallon of water-soluble foaming agent, at a level of 20-26 pounds of dry mix per one Imperial gallon of solution.
Claims10
A sprayable insulating composition completely curable within 36 hours at ambient conditions consisting essentially of:
- (a) a dry mix of 100-120 parts by volume of expanded perlite, 20-30 parts by volume of Portland cement, 0.5-2.0 parts by volume of hydrated lime and 0.1-1.0 part by volume diatomite admixed with
- (b) an aqueous solution of 0.25-2 ounces per gallon of water-soluble foaming agent at a level of 20-26 pounds of dry mix per Imperial gallon of solution.
Dependencies are inferred from the claim text.