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Improvements in or relating to reinforced polymer compositions
vapour streams towards the substrate which is simultaneously heated and moved in a controlled cycle so coatings are built up in different time portions of the cycle. Each coating has groups of layers each <0.005 in
thick per face per cycle. Composite insulating material (Societe Generale Des Produits Refractaires) UK Pat 1 296 681 (15 Nov 1972) Two or more layers of different mineral based fibres are felted and hence bonded to the succeeding layer. Layers are arranged in order of increasing heat resistance. A method of impregnating fibres in sheet form with a resin Heywood, D. H. (Secretary of State for Defence) UK Pat 1 296 740 (15 Nov 1972) Sheet form fibres impregnated with resin are interposed between a pair of carrier laminae, one surface of which is coated with resin. The sandwich so formed is passed round a heated roller section, the carrier laminae being held in tension, forcing the sandwich against the roller and subsequently removing at least one carrier laminae from the impregnated fibre sheet. Method and apparatus for impregnating fabrics more particularly glass clothes with plastics, (Sud-Aviation Societe Nationale Construction Aeronautique) UK Pat 1 297 125 (22 Nov 1972) Rolls of fabric are treated with a bond improver and are subjected to vacuum before impregnation with fluid plastic while being rolled up. The plastic is evenly distributed and the rolls are then packed for storage. Oxymethylene polymer compositions containing glass reinforcing agents (Celanese Corp) UK Pat 1 297 4,58 (22 Nov 1972) These high impact resistant composites consist of polyoxymethylene, 0.1-5.0% by weight, of an isocyanate and 5-50% by weight of glass fibre treated with urethane size. Process for the continuous graphitization of carbon filaments, carbon fibres, carbon fibre strips and carbon yarn Weisbeck, R. and Pampus, G. (Bayer AG) UK Pat 1 298 043 (29 Nov 1972) This continuous process involves passage through a region of plasma having
COMPOSITES. JULY 1973
symmetrical properties along the line of the fibre being passed. The plasma is produced from one or more gases and has a temperature >1 000°C.
Fibre filled urethane elastomer composition (Atlantic Richfield Co) UK Pat 1298 134 (29 Nov 1972) 0.1 50%by weight of glass fibre is incorporated into urethane prepared by reacting di-isocyanate with a polyhydroxy intermediate with an average 1.8 largely primary terminal allylic hydroxyl groups per average molecule and being an addition polymer of given structure and viscosity. Composite properties include good puncture and abrasion resistance and dimensional stability. Improvements in or relating to the production of fibre-reinforced plastic bodies Loebler, P. and Brining, R. (Dynamit Nobel AG) UK Pat 1 298 164 (29 Nov 1972) Fibre layers are coated on one side with substantially plasticiser-free homo or copolymers of vinyl chloride or chlorinated vinyl chloride. These layers are stacked, the top and bottom layers are polymeric; this is subjected to pressure and a temperature > softening point of the polymer. Such composites avoid the need for fibre adhesion promstors as shown by the high impact strength.
Manufacture of fibre reinforced plastic pipe Carter, J, W. (Ciba-Geigy AG) UK Pat 1 299 873 (13 Dec 1972) Conveyor tube, the inside of which is non-adhesive, is fed onto a mandrel: the outside of the tube coated with a separable adhesive. The tube is advanced, the fibre reinforcement applied and the resin polymerised. The tube adhesive is removed by a separating agent to yield a reinforced pipe. A composite tube and a filament winding process to produce the same (Kubota lron and Machinery Works Ltd) UK Pat 1 299 923 (13 Dec 1972) Resin impregnated fibres are wound onto a mandrel surface; onto the layers of threads at least one layer of sheet material coated or impreganted with thermo-setting resin and filler is wound, followed by winding on a further layer of resin impregnated fibre.
Fibrous glass reinforced elastomers and composites Vanderbilt, B. M. and Clayton, R. E. (Esso Research and Eng Co) UK Pat 1 299 941 (13Dec 1972) This composite consists of organo/ amino/silane treated glass immersed in a sulphur curable elastomer coating contfiining >0.05 phr zinc oxide and )'0.5 phr free fatty acid. A method and apparatus for manufactur-
Improvements in or relating to reinforced polymer compositions (Sumitomo Chemical Co Ltd) UKPat 1 298 786 (6 Dec 1972) Polypropylene or copolymers with ethylene contain 5--60% by weight of a glass fibre/adhesive mixture, the latter being an epoxy resin at 0.1-5.0% by weight of the fibre. 0.5 10% of tire polymer is polypropylene modified with a specific anhydride. These composites have excellent mechanical properties and heat resistance. Reinforced composites Garmish, E. W. and Hayes, B. J. (Ciba-Geigy (UK) Ltd) UK Pat 1 299 177(6 Dec 1972) A composite is formed from solid continuous filaments of thermosetting resin and uni-directional strands of glass, boron or carbon where the resin encases the fibre strand to form a coherent structure.
ing reinforced plastics cylinders Gadelius, G. S. (Cadelius Inter SA) UK Pat 1 300 112 (20Dec 1972) A plastic composition is applied inside a rotating moulding cylinder and dispersed evenly over the interior surface by centrifugal force. Reinforcement is introduced and impressed by the former force and by a roller. Carbon composites Bryan, J. G. H. (Dunlop Holdings Ltd) UK Pat 1 300 393 (20Dec 1972) These consist of a polymer or resin and a stress carbonized material in the form of fibres containing pyrolytic carbon attached to its surface. Production of carbon fibres (Kanegafuchi Boseki Kabushiki Kaisha) UK Pat 1 300 610 (20 Eec 1972) A pitch and synthetic polymer in the ratio 1 : 1 to 10:1 are spun simul-
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thick per face per cycle. Composite insulating material (Societe Generale Des Produits Refractaires) UK Pat 1 296 681 (15 Nov 1972) Two or more layers of different mineral based fibres are felted and hence bonded to the succeeding layer. Layers are arranged in order of increasing heat resistance. A method of impregnating fibres in sheet form with a resin Heywood, D. H. (Secretary of State for Defence) UK Pat 1 296 740 (15 Nov 1972) Sheet form fibres impregnated with resin are interposed between a pair of carrier laminae, one surface of which is coated with resin. The sandwich so formed is passed round a heated roller section, the carrier laminae being held in tension, forcing the sandwich against the roller and subsequently removing at least one carrier laminae from the impregnated fibre sheet. Method and apparatus for impregnating fabrics more particularly glass clothes with plastics, (Sud-Aviation Societe Nationale Construction Aeronautique) UK Pat 1 297 125 (22 Nov 1972) Rolls of fabric are treated with a bond improver and are subjected to vacuum before impregnation with fluid plastic while being rolled up. The plastic is evenly distributed and the rolls are then packed for storage. Oxymethylene polymer compositions containing glass reinforcing agents (Celanese Corp) UK Pat 1 297 4,58 (22 Nov 1972) These high impact resistant composites consist of polyoxymethylene, 0.1-5.0% by weight, of an isocyanate and 5-50% by weight of glass fibre treated with urethane size. Process for the continuous graphitization of carbon filaments, carbon fibres, carbon fibre strips and carbon yarn Weisbeck, R. and Pampus, G. (Bayer AG) UK Pat 1 298 043 (29 Nov 1972) This continuous process involves passage through a region of plasma having
COMPOSITES. JULY 1973
symmetrical properties along the line of the fibre being passed. The plasma is produced from one or more gases and has a temperature >1 000°C.
Fibre filled urethane elastomer composition (Atlantic Richfield Co) UK Pat 1298 134 (29 Nov 1972) 0.1 50%by weight of glass fibre is incorporated into urethane prepared by reacting di-isocyanate with a polyhydroxy intermediate with an average 1.8 largely primary terminal allylic hydroxyl groups per average molecule and being an addition polymer of given structure and viscosity. Composite properties include good puncture and abrasion resistance and dimensional stability. Improvements in or relating to the production of fibre-reinforced plastic bodies Loebler, P. and Brining, R. (Dynamit Nobel AG) UK Pat 1 298 164 (29 Nov 1972) Fibre layers are coated on one side with substantially plasticiser-free homo or copolymers of vinyl chloride or chlorinated vinyl chloride. These layers are stacked, the top and bottom layers are polymeric; this is subjected to pressure and a temperature > softening point of the polymer. Such composites avoid the need for fibre adhesion promstors as shown by the high impact strength.
Manufacture of fibre reinforced plastic pipe Carter, J, W. (Ciba-Geigy AG) UK Pat 1 299 873 (13 Dec 1972) Conveyor tube, the inside of which is non-adhesive, is fed onto a mandrel: the outside of the tube coated with a separable adhesive. The tube is advanced, the fibre reinforcement applied and the resin polymerised. The tube adhesive is removed by a separating agent to yield a reinforced pipe. A composite tube and a filament winding process to produce the same (Kubota lron and Machinery Works Ltd) UK Pat 1 299 923 (13 Dec 1972) Resin impregnated fibres are wound onto a mandrel surface; onto the layers of threads at least one layer of sheet material coated or impreganted with thermo-setting resin and filler is wound, followed by winding on a further layer of resin impregnated fibre.
Fibrous glass reinforced elastomers and composites Vanderbilt, B. M. and Clayton, R. E. (Esso Research and Eng Co) UK Pat 1 299 941 (13Dec 1972) This composite consists of organo/ amino/silane treated glass immersed in a sulphur curable elastomer coating contfiining >0.05 phr zinc oxide and )'0.5 phr free fatty acid. A method and apparatus for manufactur-
Improvements in or relating to reinforced polymer compositions (Sumitomo Chemical Co Ltd) UKPat 1 298 786 (6 Dec 1972) Polypropylene or copolymers with ethylene contain 5--60% by weight of a glass fibre/adhesive mixture, the latter being an epoxy resin at 0.1-5.0% by weight of the fibre. 0.5 10% of tire polymer is polypropylene modified with a specific anhydride. These composites have excellent mechanical properties and heat resistance. Reinforced composites Garmish, E. W. and Hayes, B. J. (Ciba-Geigy (UK) Ltd) UK Pat 1 299 177(6 Dec 1972) A composite is formed from solid continuous filaments of thermosetting resin and uni-directional strands of glass, boron or carbon where the resin encases the fibre strand to form a coherent structure.
ing reinforced plastics cylinders Gadelius, G. S. (Cadelius Inter SA) UK Pat 1 300 112 (20Dec 1972) A plastic composition is applied inside a rotating moulding cylinder and dispersed evenly over the interior surface by centrifugal force. Reinforcement is introduced and impressed by the former force and by a roller. Carbon composites Bryan, J. G. H. (Dunlop Holdings Ltd) UK Pat 1 300 393 (20Dec 1972) These consist of a polymer or resin and a stress carbonized material in the form of fibres containing pyrolytic carbon attached to its surface. Production of carbon fibres (Kanegafuchi Boseki Kabushiki Kaisha) UK Pat 1 300 610 (20 Eec 1972) A pitch and synthetic polymer in the ratio 1 : 1 to 10:1 are spun simul-
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