Method of manufacturing high strength fiber reinforced thermoplastic parts Long, R. A. (Teledyne Ryan Aeronautical a Division of Teledyne Industries, Inc) US Pat 3 926 708 (16 Dec 1975) A method of forming high strength fibre reinforced thermoplastic parts in which the material is heated to a temperature at which it is readily formable; following this, it is formed to the required final configuration by drawing it onto a mould. The material is left to cool and harden, and an elongated fibre reinforcement i s applied to selective locations on at least one of the surfaces of the material by placing tapes of elongated high strength, and high modulus fibres in a matrix of thermoplastic material onto the surface of the formed thermoplastic part. These tapes are bonded at the selective locations by heating the thermoplastic matrix material in the tapes.
Composite bearing materials Albertson, C. E. and Krueger, R. H. (Borg-Warner Corporation) US Pat 3 926 818 {16 Dec 1975) A pre-form composite, that can be used for making bearing structures, consisting of a core or centre made of a fibreglass-filled resin and at least one outer surface of milled fibreglass and solid lubricant-filled resin. This latter is taken from the group graphite, polytetrafluoroethylene, molybdenum disulphide, and mixtures of these.
Method of fabrication of furan resin bonded fiber reinforced articles by spray-up technique Bozer, K. B. and Brown, L. H. (The Quaker Oats Company) US Pat 3 927 139 (16 Dec 1975) A method of making a catalysed furan binder mixture suitable for spray-up applications.
High temperature resistant products and methods for making the same Vasterling, P. F. (HITCO) US Pat 3 927 157 (16 Dec 1975) A method for producing carbon fibres suitable for moulding compositions by leaching Larix occidentalis fibres to remove soluble carbohydrates and form small porous ceUular fibrous structures of substantially non-uniform
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size and shape. The fibres are carbonised at temperatures reaching between about 982 ° and 1314°C and then stabilised at temperatures between about 2093 ° and 3038°C in a nonoxidising atmosphere.
Impregnating compound for fiber glass mats Lindner, H. J. (Siemens Aktiengesellschaft) US Pat 3 927 234 [16 Dec 1975) The compound consists of repurified epoxy resin (based on bis-phenol A having a maximum chlorine content of 0.1 percent by weight) and at least one hardenable hydrocarbon polymer comprising a polybutadiene base having at least 60 percent of the 1,2 adduct. The weight ratio of the epoxy resin to polymer is between 6 to 4 and 9 to 1.
Process of making a composite structure of isocyanate coated elastomeric hydrocarbon and metal Baird, R. L. and De1, W. (E. I. Du Pont de Nemours and Company) US Pat 3 928 111 (23 Dec 1975) A process for manufacturing a composite structure of a metal bonded to a cured elastomeric hydrocarbon copolymer containing ethylene units and propylene units, in which the surface of the cured elastomeric hydrocarbon copolymer is coated with an organic aromatic polyisocyanate. An epoxy-based or chlorinated rubber phenolic-based adhesive primer is applied to the surface of the metal to be bonded, and an adhesive layer is put between the polyisocyanate-coated elastomeric surface and the metal-primed surface. Pressure is then applied to the metal and elastomer to bond them together, so forming the composite structure.
Alkali-resistant mineral fibers useful for the reinforcement of various moulded articles Otouma, T., Oaki, S., Minaki, T., Shibata, K. and Mori, K. (Japan Asbestos Co Ltd) US Pat 3 928 049 (23 Dec 1975) An alkali-resistant glassy fibre that can be used as a reinforcing material in calcium silicate-containing moulded articles and cement- or gypsum- containing moulded articles, which consists of 38 to 50% by weight of silica; 10 to 35% by weight of iron oxide and manganese oxide; and 15 to 19% by weight of zirconium oxide.
Uniformly pigmented unsaturated polyester resin molded articles Takayama, Y., Ichimura, Y., Aoyagi, T. and Kishino, T. (Mitsubishi Rayon Co Ltd) US Pat 3 928 254 (23 Dec 1975) A filler- and fibre-reinforced, uniformly pigmented, unsaturated polyester resin moulded article having low profile, which consists of a structure in which unconnected hollow spheres (having a diameter of 5 to 300/am with a wall of a styrene polymer) are dispered in a cured a/3-ethylenically unsaturated polyester-styrene matrix.
Hydrous magnesium containing silicate minerals with reduced absorbencies Ferrigno, T. H. US Pat 3 928 059 (23 Dec 1975) A material suited for use as a f'dler or extender in paints, plastics or the like consisting of a calcined agglomerate comprising hydrous magnesium-containing silicate mineral; feldspar mineral; boric acid, boric oxide, borax, colemanite, sodium polyphosphates, low melting glasses, flits, lead oxide, barium oxide, soda-lime glasses and eutectic combinations of inorganic oxides (as flux); inorganic colourant: and a temporary binder material selected from the group consisting of expanding lattice montmorillonites, soluble silicates, starch, polyglycols, lignin, lignin sulphonates and esters, casein and cellulose derivatives.
Glass fiber-containing aromatic polyester composition Inata, H., Kawase, S. and Shima, T. (Teijin Limited) US Pat 3 928 279 (23 Dec 19 75) An aromatic polyester composition containing glass fibres, with 100 parts by weight of an aromatic polyester resin selected from the group consisting of poly (alkylene terephthalate) resins containing at least 80% by weight of alkylene terephthalate units and poly (alkylene naphthalate) resins containing at least 80% by weight of alkylene naphthalate units; 3 to 70 parts by weight of glass fibres and a stabiliser to protect against heat deterioration consisting of 0.01 to 5 parts by weight (per 100 parts by weight of the aromatic polyester resin) of a thiodipropionic acid diester.
COMPOSITES . JULY
1976