Manufacture of thermally-insulating, refractory articles
OwnerDenis Arthur John Patterson, Thomas Albert Williamsinventors
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Abstract
A composition for use in the manufacture of thermally insulating, refractory articles, containing particulate refractory material and from 1 to 20 percent by weight of fibrous organic material, for example paper fibers and/or cardboard fibers, is made with a plastic consistency. For example, the composition is made with a consistency or apparent viscosity of at least 200,000 centipoises at 25.degree. C. Methods of making the composition and for making articles from the composition are also described.
Claims33
A molding composition for the manufacture of thermally insulating refractory articles, comprising a liquid, about 1 to 20 percent by weight on a dry basis of organic fibrous material and about 60 to 95 percent by weight on a dry basis of particulate refractory material, the liquid being present in an amount such that the composition is of plastic consistency and has a minimum apparent viscosity of about 200,000 centipoises at a temperature of 25.degree. C.
A method of making thermally insulating refractory articles, comprising forming a composition which includes a liquid, about 1 to 20 percent by weight on a dry basis of organic fibrous material and about 60 to 95 percent by weight on a dry basis of particulate refractory material, the liquid being used in an amount such that the composition is of plastic consistency and has a minimum apparent viscosity of about 200,000 centipoises at a temperature of 25.degree. C;
- and shaping the composition to a predetermined configuration.
A method according to claim 25, in which the liquid includes water.
Dependencies are inferred from the claim text.