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US 11,001,043 B2Granted
Composite products
AssigneeAlsitek Limited
InventorHarun Ihsan
Life of this patent
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Abstract
A composite product comprising a metakaolin-based mineral polymer. The composite product has a number of applications including use as a fire resistant material, use as a thermally insulating material and use as an impact resistance material. Methods of preparing a composite product according to the present invention and a kit of parts for preparing the composite product are also disclosed.
Claims18
A method for making a composite product comprising two or more layers, wherein at least one layer comprises a foamed mineral polymer, and at least one layer comprises a non-foamed mineral polymer, wherein the layers are obtained by:
- a) providing at least one layer of a first mixture comprising 20 to 40% by weight of metakaolin to prepare the foamed mineral polymer layer;
- b) providing at least one layer of a second mixture comprising 15 to 40% by weight of metakaolin;
- >0 to 65% by weight of filler selected from the group consisting of wollastonite,
- molochite, cordierite, feldspar, zircon, borax, basalt powder, talc, and mullite;
- 5 to <30% by
- weight of alkali metal silicate;
- and 1 to 22% by weight of alkali metal hydroxide, to prepare the non-foamed mineral polymer layer;
- and
- c) joining the foamed mineral polymer layer to the non-foamed mineral polymer to form the
- composite product,
- and wherein the composite product is stronger than structural steel with a breaking stress of 250 MPa on a weight basis.
8 more elements
Dependencies are inferred from the claim text.