Thermal insulating material
AssigneeStonecote, Inc.
InventorPatricia J. Billings
Life of this patent
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Abstract
A thermal insulating material which includes silicone coated perlite providing thermal insulation, powdered perlite to fill in the gaps between the silicone coated perlite particle, and a specially formulated binder for the perlite. The binder has a powder portion comprising a mixture of gypsum and cement for strength and a liquid portion comprising polyvinyl acetate, a colloid and water. After these materials are mixed in proper proportions, water is added to provide the fluidity necessary for application, such as by spraying or molding into prefabricated panels.
Claims10
A thermal insulating material adapted to be mixed with water for application in a fluid state prior to setting, said material comprising an expanded ore in aggregate form with the aggregate particles coated with a moisture resistant substance, an expanded ore in powdered form, and a binder for the expanded ores, said binder comprising gypsum, cement, polyvinyl acetate and a colloid for inhibiting frothing of the polyvinyl acetate.
A composition which upon mixing with water and subsequent setting provides a thermal insulating material, comprising:
- (a) silicone coated perlite;
- (b) powdered perlite;
- and
- (c) a binder for the perlite, said binder having a powder portion comprising a mixture of gypsum and cement and a liquid portion comprising polyvinyl acetate, water and a colloid for inhibiting frothing of the polyvinyl acetate.
A thermal insulation material adapted to be applied in a liquid state and to subsequently set to a solid state, said material comprising silicone coated perlite present in a volume percentage of approximately 66%, powdered perlite present in a volume percentage of approximately 7%, a mixture of gypsum and cement forming a powder binder for the perlite present in a volume percentage of approximately 13%, a liquid binder for the perlite present in a volume percentage of approximately 7%, and water present in a volume percentage of approximately 7%.
Dependencies are inferred from the claim text.