Antifreeze and de-icing agent, especially for the de-icing of surfaces
AssigneeLang & Co., Chemisch-Technische Produkte Kommanditgesellschaft
InventorGertrude Kaes
Life of this patent
Estimating the term…
Abstract
An antifreeze and de-icing system containing a freezing point lowering chlorine containing inorganic substance like NaCl, MgCl.sub.2 or CaCl.sub.2 and admixed with the substance, a mixture of potassium carbonate and water soluble alkali silicate.
Claims16
An antifreeze and deicing agent, which consists essentially of:
- (a) at least one inorganic chloride selected from the group consisting of sodium chloride, calcium chloride and magnesium chloride as a freezing point-lowering defrosting substance;
- and
- (b) an additive to said freezing point-lowering reducing substance, said additive consisting essentially of a mixture of potassium carbonate and at least one water soluble alkali silicate wherein the alkali silicate amounts to 1 to 10% by weight of the additive with the balance potassium carbonate, and wherein the additive is present in an amount of 1 to 50% by weight of the antifreeze and deicing agent.
An antifreeze and de-icing agent for wet application, which consists essentially of:
- (a) at least one inorganic chloride selected from the group consisting of sodium chloride, calcium chloride and magnesium chloride as a freezing point-lowering substance;
- and
- (b) an additive to said freezing point-lowering substance, said additive consisting essentially of an aqueous solution containing 40 to 50% by weight potassium carbonate and 3 to 10% by weight of alkali silicate, based upon the weight of the solution, and wherein the additive is present in an amount of 5 to 40% by weight of the antifreeze and de-icing agent.
An additive to an inorganic chloride freezing point lowering defrosting substance, said additive consisting essentially of a mixture of potassium carbonate and at least one water soluble alkali silicate wherein the alkali silicate amounts to 1 to 10% by weight of the additive with the balance potassium carbonate.
An additive to an inorganic chloride freezing point-lowering reducing substance, said additive consisting essentially of an aqueous solution containing 40 to 50% by weight potassium carbonate and 3 to 10% by weight of alkali silicate, based upon the weight of the solution.
A method of de-icing a surface or preventing ice formation on a surface, comprising:
- admixing with a freezing-point lowering defrosting substance in the form of at least one inorganic chloride selected from the group consisting of sodium chloride, calcium chloride and magnesium chloride, an additive consisting essentially of a mixture of potassium carbonate and at least one water soluble alkali silicate wherein the alkali silicate amounts to 1 to 10% by weight of the additive with the balance potassium carbonate;
- and
- depositing said inorganic chloride and said additive in a wet application on said surface.
A method of de-icing a surface or preventing ice formation on a surface, comprising:
- admixing with a freezing-point lowering defrosting substance in the form of at least one inorganic chloride selected from the group consisting of sodium chloride, calcium chloride and magnesium chloride, an additive consisting essentially of an aqueous solution containing 40 to 50% by weight potassium carbonate and 3 to 10% by weight of alkali silicate, based upon the weight of the solution;
- and
- depositing said inorganic chloride and said additive in a wet application on said surface.
Dependencies are inferred from the claim text.