Abstract: In a wear-resistant laminated article (e.g. a bearing, or a compressor rotor blade) made by heating an assembly of superimposed layers of fabric impregnated with a phenolic or other thermosetting resin, the fabric is made of non-asbestos yarn comprising a core of glass fibre with a surface of aramid fibre and a relatively porous fibre such as viscose fibre, the aramid fibre forming not more than 40% by weight of the yarn. The laminate may further incorporate carbon fibres.

Abstract: In composite material comprising a water-insoluble aluminous cement matrix to which are bonded superimposed layers of glass fibre fabric enclosed within it as reinforcement, said fabric is a mechanically bonded chopped strand glass mat of mass/unit area not greater than 850 g/m.sup.2.The composite material is useful as an electrical insulant, particularly at high temperatures eg 850.degree. C.

Abstract: Flexible sheet material suitable for use in the manufacture of wear-resistant laminated articles such as bearings and rotor blades comprises particles of graphite and heat-resistant web-forming fibres, preferably of poly (aromatic amide), bound together with an organic binder, the proportions of the ingredients being:______________________________________ graphite 20-95% heat-resistant web-forming fibres 3-78% organic binder 2-15% ______________________________________To make wear-resistant articles, sheets of the material are impregnated with resin, superimposed one upon another, and subjected to high pressure and elevated temperature.