Inorganic oxide fibres and their production
AssigneeImperial Chemical Industries PLC
InventorsMichael D. Taylor, Martyn H. Stacey, Jeffrey S. Kenworthy, Stuart S. Boffey
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Abstract
A fibre product comprising fine-diameter inorganic oxide fibres, for example alumina fibres, which can be compressed to increase the volume fraction of fibres to at least 0.25 without excessive damage to the fibres. In a preferred embodiment the fibres are nominally-continuous and essentially-aligned and such a product is made by blow-spinning through a converging duct and collection on a wind-up drum. The product may be in the form of a mat or blanket, a tape or a woven material.
Claims14
A fibre product comprising a plurality of essentially aligned inorganic oxide fibres of mean diameter less than 5 microns, a proportion of which fibres do not extend the entire length of said fibre product wherein a degree of non-alignment of some of the fibres provides for limited fibre interwining conferring lateral cohesion upon the product and wherein said fibre product can be compressed to increase the volume fraction of fibres therein to greater than 0.25 without undue breakage of the fibres as denoted by a fall to below 50% in the specific tensile strength of the product.
Dependencies are inferred from the claim text.