Patent ID: 6692678
Filing Date: 2004-02-17
Classification: C04B,Y02W

Abstract:
A method for producing a calcium silicate insulating material, including the steps of:a. molding a shape from an aqueous slurry of a mixture comprising: 12 to 40 weight percent lime, 12 to 40 weight percent siliceous component, 10 to 70 weight percent alumina silica microspheres, 0 to 60 weight percent wollastonite, and 0 to 10 weight percent organic fiber, all slurried in at least one part by weight water per part by weight of said mixture; b. curing said shape in an atmosphere of steam at sufficiently elevated pressure for sufficient time to cause the lime, siliceous component, and water to form a calcium silicate hydrate matrix. c. drying said shape to remove excess water.