Rigid thermal insulation

Details Rigid thermal insulation Rigid thermal insulation

1996-10-07

1998-07-21

Watkins, III, William P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

4283122, 4283124, 4285377, 428703, 428920, 428921, 252 62, 423551, 423553, 423556, B32B 326

Patent

active

057832803

ABSTRACT:
An insulation material comprising the double salt of aluminum potassium sulphate and method of producing such. Aluminum sulphate materials and potassium sulphate materials are combined to form aluminum potassium sulphate which is then dehydrated to remove the water of hydration. Porous forms are made by mixing the hydrated aluminum potassium sulphate with a binder before dehydration. The resultant dehydrated sulphate expands greatly to provide an insulative material which is of lightweight and inorganic.

REFERENCES:
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patent: 4839222 (1989-06-01), Jain
patent: 5008299 (1991-04-01), Tucker et al.
patent: 5055428 (1991-10-01), Porter
patent: 5084320 (1992-01-01), Barito et al.
patent: 5169877 (1992-12-01), Tucker et al.
patent: 5171346 (1992-12-01), Hallett
patent: 5589023 (1996-12-01), Rendall et al.

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