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US 5,476,625 AGranted
Method of manufacturing liquid-repellant covering layer
AssigneePharo Limited
InventorJohn L. Clatworthy
Life of this patent
Estimating the term…
Abstract
Liquid-repellant covering layer, characterized in that it consists of at least a compact layer (2) which is formed by a mass of fibers (3) and a clay product (4).
Claims18
A method for the manufacture of a liquid-repellant covering layer, which method comprises forming a mass of fibers;
- processing a clay product into the mass of fibers;
- and compressing the processed mass of fibers to a compact layer:
- wherein the clay product is processed into the mass of fibers by stretching an existing layer of fibers to an open structure and applying the clay product in the openings between the fibers.
A method for the manufacture of a liquid-repellant covering layer, which method comprises forming a mass of fibers;
- processing a clay product into the mass of fibers;
- and compressing the processed mass of fibers to a compact layer;
- wherein the coveting layer comprises a plurality of compact layers formed from fiber masses and a clay product, wherein the plurality of compact layers are applied crosswise over each other.
Dependencies are inferred from the claim text.