the fibre to lOOO”-1500°C and ex- . posing the heated fibre to a nitrogen atmosphere having a moisture concentration of l-5 mol percent for a period of up to 28s. Method for producing tubes of reinforced setting plastiqmaterial Gilbu, A. (Vera Fabrikker AS) US Pat 3 770 541 (6 Nov 1973) A tube is made by supporting a web of fibres on a series of juxtaposed strands which impregnated in a setting plastic material, are wound on to a mandrel to form the tube and its reinforcement. Composite laminate with a thin, perforated outer layer and cavitated bonded backing member Elder, i;. B. and Lewis, A. F. (American Cynamid Co) US Pat 3 770 560 (6 Nov I9 73) Laminates comprising a thin, perforated outer layer and a thicker cavitated backing member bonded thereto. are disclosed. Coated glass fibers and glass fiber reinforced elastomers Marzocchi, A. (Owens-Corning Fiberglas Corporation) US Pat 3 773 546 (20 Nov 1973) The improvement in the bonding relationship between glass fibres and elastomeric materials in the manufacture of glass fibre reinforced elasomerit products wherein the individual glass fibres are sized and/or bundles of previously sized glass tibres impregnated with a composition containing a resinous material formed by the reaction of an aldehyde with phenolic compound having a mercapto or thio substituent in the meta or para positions. Glass fiber reinforced elastomers Marzocchi (Owens Corning Fiberglas Corp) US Pat 3 773 607 (20 Nov 1973) This invention describes the improvement in the bonding relationship of glass fibres with elastomeric materials in the manufacture of glass fibre reinforced elasomeric products where in glass fibres are individually coated, or bundles of glass fibres are impregnated, with a composition continaing an improved anchoring agent in the form of a silyl amid!. Normally chloride modified enhanced
crystalline vinylidene polymer latex and fiber cement compsotions having elastic modulus
COMPOSITES.
NOVEMBER
1974
Eash, R. D. and Lamoria, L. F. (The Dow Chemical Company) US Pat 3 773 700 (20 Nov 1973) Normally crystalline vinylidene chloride polymer latex-modified portland cement compsotions having exceptionally high elastic modulus bv the incorporation therein of from about 1.5 to about 3 percent of composition volume of a fibrous mixture consisting of (a) a nylon fibre and (b) a steel fibre wherein the fibrous materials are present in the mixture in amounts representing a ratio of (a) to (b) of about 1:2 to 2: 1 based on mixture volume, which compositions are particularly suited for use in construction in preparing or repairing structures such as pavement and the like requiring high energy adsorption properties. Method of fabricating a berylliumtitanium composjte Goodwin, V. L. (Brush Wellman Inc) US Pat 3 774 290 (27 Nov 1973) There is provided a process for forming a beryllium/titanium composite of improved strength and ductility from powdered beryllium and powdered titanium material characterized by blending the powder and extruding a canister containing the billet at a temperature of from 746” to 829”C( 1 375” to 1 515°F) to a reduction ratio of from 6: 1 to 100: 1 or greater to form a solid beryllium composite. Method of forming a composite metal strip Singer, A. R. E. (Vandervell Products Ltd) US Pat 3 775 156 (27 Nov 1973) The specification discloses a method of forming a composite metal strip comprising abacking layer and a layer of two metals which, in liquid form, are immiscible or partially immiscible and having different densities. Method for improving the bond between glass fibers and elastomeric materials Marzocchi, A. (Owens-Corning Fiberglas Corporation) US Pat 3 775163(27Nov 1973) Glass-fibre-elastomeric products wherein the glass fibre component is treated, prior to combination with elastomeric material, with a composition containing a resorcinol formaldehyde resin and one or more elastomeric materials in which the resorcinol formaldehyde
resin has been subjected to air oxidation by bubbling air therethrough, prior to application onto the glass fibre surfaces. Composite material, tubing made from the material, and methods for making the material and tubing Dromsky, J. A. (Texas Instruments Inc) US Pat 3 775 I94 (27Nov 1973) A strip of composite metal laminate material embodying a thin inner layer of stainless steel sandwiched between and metallurgically bonded to two relatively thicker outer layers of low carbon steel is subjected to a brief, high temperature heat treatment followed by a relatively much longer heat treatment at much lower temperature. This is done to substantially eliminate the yield point in the laminate and to maximise the formability of the laminate while permitting some reduction in the corrosion resistance properties of the stainless steel layer of the laminate. Composite-tape placement head Karlson, H. E. and Hardesty, E. E. (Goldsworth Engineering Inc) USPat 775219(27Nov1973) An integrally complete compositetape placement head for direct attachment to a host gantry type of machine, which tape placement head is designed to apply with precision preimpregnated fibre reinforced tape to a work piece. Composite linear elements Leary, D. E. (Owens-Corning Fiberglas Corporation) US Pat 3 775 228 (27 Nov 1973) A composite linear element including an impregnated central body of closely grouped filaments and groups of coated dispersed surface filaments that extend laterally from the outer surface of the impregnated central body. The filaments may be glass. A fabric may be made using the composite linear element. Structural composite material Lyman, J. W. US Pat 3 775 238 (27 Nov 1973) A reinforced composite structure consisting of a pair of matching halves is disclosed herein, wherein each half includes reinforcing members arranged in a predetermined geometry, consistency and quality forming a structural matrix. The composite material is designed to meet analytical requirements and to satisfy the
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