Process for preparing olivine sand cores and molds
AssigneeInternational Minerals & Chemical Corp.
InventorsCharles E. Seeney, John F. Kraemer, Janis Ingebrigtsen
Life of this patent
Estimating the term…
Abstract
An inorganic cement binder for a foundry aggregate comprising, in combination, potassium olivine phosphate and as a hardener therefor, water, aqueous sodium silicate, or aqueous phosphoric acid.
Claims9
An inorganic cement binder for a foundry aggregate comprising, in combination, potassium olivine phosphate, from 2 to 10% based on the weight of the aggregate, and as a hardener therefor from 2 to 10%, based on the weight of the aggregate, of water, aqueous sodium silicate, or aqueous phosphoric acid.
An inorganic cement binder for a foundry aggregate comprising, in combination, a metal silico-phosphate, from 2 to 10% based on the weight of the aggregate, and as a hardener therefor, from 2 to 10% based on the weight of the aggregate, of water, aqueous sodium silicate, or aqueous phosphoric acid.
Dependencies are inferred from the claim text.