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Multilayer article of microporous and porous materials
fibres are aligned substantially in the axis of the longitudinal direction of the bladder. Multilayer article of microporous and porous materials Leatherman, D.D., Rechlicz, T. and Schwarz, R.A. (PPG Industries, Inc, Pittsburgh, PA, USA) US Pat 4 877 679 (31 October 1989) A multilayer article comprises at least one layer of porous material bonded to at least one layer of microporous material which consists of a linear stretch-induced, molecularly orientated, ultrahigh molecular weight polyolefin matrix and a finely divided, particulate, substantially water insoluble filler. The filler is at least 50% by weight silaceous and constitutes between 50 and 90 wt% of the microporous material. The network of pores in the microporous material constitutes more than 80 vol% of this material Reinforcing rope made of at least two different materials Weidenhaupt, W., Wepner, G., Dismon, P. and Remijn, M.G. (Akzo BV, Arnhem, The Netherlands) US Pat 4 878 343 (7 November 1989) A reinforcing rope consists of steel wires and filaments of aromatic polyamides. The filaments form the core of the structure and the steel wires are coiled around the core. Composite panel structure Green, P.H. (Willowdale, Ontario, Canada) US Pat 4 879152 (7 November 1989) A composite panel has a polypropylene core layer of thin wall, open cell, honeycomb structure bonded on each face to a layer of cured polyester resin with a woven fibreglass fabric embedded in the resin layer. A means is supplied to prevent the resin from penetrating the core material. In addition, on one face there is an outer layer of cured polyester resin. Edge stabilised wood composite panel Knudson, R.M. and Ehrenfellner, H. (MacMillan Bloedel Limited, Canada) US Pat 4 879160 (7 November 1989) A composite wood panel is formed from adhesive-coated wood particles that are consolidated under elevated temperature and pressure conditions. Two opposing edges incorporate two side portions separate from the central region of the panel between these two portions. There is a stability-enhancing additive incorporated substantially throughout the volume of these side portions and they comprise a substantial portion of the thickness of the edges of the panel. Lightweight armour Smith, W.N. (Philadelphia, PA, USA) US Pat 4 879165 (7 November 1989) A laminated armour structure is described with at least one layer consisting of an ionomer resin incorporating aramid and/or linearly crystallized polyethylene fibres arranged to give lateral transfer of impact forces. The layers are arranged in order of decreasing Young's modulus and increasing elongation characteristics. Pneumatic bolster for sealing damaged walls of containers and pipes Vetter, M. (Burg Langendorf, Zfipich, FRG) US Pat 4 880 035 (14 November 1989) A sealing pad of reinforced rubber is joined
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by vulcanization in a press under heat. Attachments are provided for applying tension that encompasses the containers or pipes. The reinforcing elements in the pad surface placed against the leak lie obliquely to the right-angled sides of the sealing pad whilst those in pad surface that faces away from the leak run parallel to the right-angled sides. Hose for refrigerating systems Kitami, T. and Mito, J. (The Yokohame Rubber Co, Ltd, Tokyo, Japan) US Pat 4 880 036 (14 November 1989) A hose for transporting refridgerants comprises an inner tube surrounded by a peripheral wall, the inner surface of which consists of a polymeric composition of 40-80 wt% nylon-6 or nylon 6/66, 5-30 wt% of nylon-ll and 10-40 wt% polyolefin. The outer surface of this peripheral wall is rubbery and has a reinforcing layer laminated around it; an outer cover is laminated over the reinforcing layer. Synthetic resin moulding for automotive vehicles Shimizu, S. (Katayama Kogyo Co, Ltd, Okayama and Shoei Jushi Co, Ltd, Tokyo, Japan) US Pat 4 880 674 (14 November 1989) A synthetic resin moulding has glass fibre yarns embedded in an extruded synthetic resin. The fibres run parallel to the longer side of the moulding and the whole is to be mounted on the body, window frame or bumper of a car. EMI shielded plastic composites Bonazza, B.R. (Phillips Petroleum Company, Bartlesville, OK, USA) US Pat 4 880 679 (14 November 1989) An article consists of two parts, each comprising electrically conductive fibres embedded in a continuous plastic matrix. The two parts are joined together along a fusion line. An electrically conductive insert embedded in the parts along this line ensures that electrical contact is made between the electrically conductive fibres in the two parts. Low heat output composite Price, J.O., Stewart, A.J. and Hasselbrack, S.A. (Heath Tecna Aerospace, Co, Kent, WA, USA) US Pat 4 880 681 (14 November 1989) A composite exhibits a total heat release of less than about 65 kW min m -2 when subjected to combustion conditions including a radiant heat source. The composite consists of a phenolic-based resin matrix containing a small amount of a phosphorus-containing polymer and reinforcing fibres. Damage resistant decorative laminate Park, J.J., White, P.W. and Richardson, C. (Formica Corporation, Wayne, N J, USA) US Pat 4 880 689 (14 November 1989) A decorative laminate consists of a thermoset resin chosen from the group comprising melamine-formaldehyde, modified melamine-formaldehyde and polyester; substantially fully hydrolysed polyvinyl alcohol; fumed amorphous silica; and an abrasive particulate with a hardness higher than that of silica. The proportions of the components are such that the material exhibits an abrasion resistance of greater than 3000 cycles by the NEMA test LD 3-3.01.
Stick of composite materials and process for preparation thereof Kohno, Y. and Hara, A. (Sumitomo Electric Industries Ltd, Osaka, Japan) US Pat 4 880 707 (14 November 1989) A stick of composite materials has a hotpressed, super-hard, head member 0.3-2 mm long and an elongated supporting member with a sectional diameter of less than 3 mm, that is at least 10 mm long after the stick has been hot pressed. The head member contains greater than 50vo1% diamond powder and/or a high pressure boron nitride powder. The whole is bonded together during hot pressing. Compositions convertible to reinforced conductive components and articles incorporatIng same Iwaskow, R.S. and Crum, S.M. (American Cyanamid Company, Stamford, CT, USA) US Pat 4 882 089 (21 November 1989) An article is described that consists of a polymeric material with little or no conductivity and composite fibres, the majority of which have an electrically conductive nonmetallic or semi-metallic core and at least one thin layer of at least one metal electrodeposited around the core. The fibres are present either as a fabric, sheet or mat or in comminuted form and in sufficient quantity to render the whole electrically conductive. Electronic packaging of components incorporating a ceramic-glass-metal composite Singh Deo, N.N., Mahulikar, D. and Butt, S.H. (Olin Corporation, New Haven, CT, USA) US Pat 4 882 212 (21 November 1989) A semi-conductor casing comprises a composite base and lid components. The composite consists of about 25 vol% ductile metal particles, 15-50 vol% glass and a balance of ceramic particles with a particle diameter > 1 Ixm. The metal and ceramic have melting points greater than the melting temperature of the glass. A metallic lead frame is embedded into one component and the two components are bonded together with a sealing glass. Articles of filled synthetic polymeric materials and glass bead filler therefore Laroche, P. (Glaverbel, Brussels, Belgium) US Pat 4 882 367 (21 November 1989) A synthetic polymer matrix selected from the group consisting of polyamides, polystyrene, epoxy resins and polyester resins contains a glass bead filler with at least one coating. The coating comprises at least one siliconfunctional silane selected from the group consisting of alkyl silanes and aryl silanes and is present in an amount between 0.02 and 1 wt% based on the weight of the uncoated beads. This coating limits adhesion between the glass beads and the matrix and confers an increased impact resistance on the article compared with one made with uncoated beads. Composite structures Healy, C.L. and Rankin, K. (Monicr Limited, Australia) US Pat 4 882 889 (28 November 1989) In support members, a pair of flanges joined by an imperforate, connecting web member are arranged to form a decking member within a concrete slab. At least one flange is located above the web and includes a lip portion with a number of apertures in it
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COMPOSITES. MAY 1991
by vulcanization in a press under heat. Attachments are provided for applying tension that encompasses the containers or pipes. The reinforcing elements in the pad surface placed against the leak lie obliquely to the right-angled sides of the sealing pad whilst those in pad surface that faces away from the leak run parallel to the right-angled sides. Hose for refrigerating systems Kitami, T. and Mito, J. (The Yokohame Rubber Co, Ltd, Tokyo, Japan) US Pat 4 880 036 (14 November 1989) A hose for transporting refridgerants comprises an inner tube surrounded by a peripheral wall, the inner surface of which consists of a polymeric composition of 40-80 wt% nylon-6 or nylon 6/66, 5-30 wt% of nylon-ll and 10-40 wt% polyolefin. The outer surface of this peripheral wall is rubbery and has a reinforcing layer laminated around it; an outer cover is laminated over the reinforcing layer. Synthetic resin moulding for automotive vehicles Shimizu, S. (Katayama Kogyo Co, Ltd, Okayama and Shoei Jushi Co, Ltd, Tokyo, Japan) US Pat 4 880 674 (14 November 1989) A synthetic resin moulding has glass fibre yarns embedded in an extruded synthetic resin. The fibres run parallel to the longer side of the moulding and the whole is to be mounted on the body, window frame or bumper of a car. EMI shielded plastic composites Bonazza, B.R. (Phillips Petroleum Company, Bartlesville, OK, USA) US Pat 4 880 679 (14 November 1989) An article consists of two parts, each comprising electrically conductive fibres embedded in a continuous plastic matrix. The two parts are joined together along a fusion line. An electrically conductive insert embedded in the parts along this line ensures that electrical contact is made between the electrically conductive fibres in the two parts. Low heat output composite Price, J.O., Stewart, A.J. and Hasselbrack, S.A. (Heath Tecna Aerospace, Co, Kent, WA, USA) US Pat 4 880 681 (14 November 1989) A composite exhibits a total heat release of less than about 65 kW min m -2 when subjected to combustion conditions including a radiant heat source. The composite consists of a phenolic-based resin matrix containing a small amount of a phosphorus-containing polymer and reinforcing fibres. Damage resistant decorative laminate Park, J.J., White, P.W. and Richardson, C. (Formica Corporation, Wayne, N J, USA) US Pat 4 880 689 (14 November 1989) A decorative laminate consists of a thermoset resin chosen from the group comprising melamine-formaldehyde, modified melamine-formaldehyde and polyester; substantially fully hydrolysed polyvinyl alcohol; fumed amorphous silica; and an abrasive particulate with a hardness higher than that of silica. The proportions of the components are such that the material exhibits an abrasion resistance of greater than 3000 cycles by the NEMA test LD 3-3.01.
Stick of composite materials and process for preparation thereof Kohno, Y. and Hara, A. (Sumitomo Electric Industries Ltd, Osaka, Japan) US Pat 4 880 707 (14 November 1989) A stick of composite materials has a hotpressed, super-hard, head member 0.3-2 mm long and an elongated supporting member with a sectional diameter of less than 3 mm, that is at least 10 mm long after the stick has been hot pressed. The head member contains greater than 50vo1% diamond powder and/or a high pressure boron nitride powder. The whole is bonded together during hot pressing. Compositions convertible to reinforced conductive components and articles incorporatIng same Iwaskow, R.S. and Crum, S.M. (American Cyanamid Company, Stamford, CT, USA) US Pat 4 882 089 (21 November 1989) An article is described that consists of a polymeric material with little or no conductivity and composite fibres, the majority of which have an electrically conductive nonmetallic or semi-metallic core and at least one thin layer of at least one metal electrodeposited around the core. The fibres are present either as a fabric, sheet or mat or in comminuted form and in sufficient quantity to render the whole electrically conductive. Electronic packaging of components incorporating a ceramic-glass-metal composite Singh Deo, N.N., Mahulikar, D. and Butt, S.H. (Olin Corporation, New Haven, CT, USA) US Pat 4 882 212 (21 November 1989) A semi-conductor casing comprises a composite base and lid components. The composite consists of about 25 vol% ductile metal particles, 15-50 vol% glass and a balance of ceramic particles with a particle diameter > 1 Ixm. The metal and ceramic have melting points greater than the melting temperature of the glass. A metallic lead frame is embedded into one component and the two components are bonded together with a sealing glass. Articles of filled synthetic polymeric materials and glass bead filler therefore Laroche, P. (Glaverbel, Brussels, Belgium) US Pat 4 882 367 (21 November 1989) A synthetic polymer matrix selected from the group consisting of polyamides, polystyrene, epoxy resins and polyester resins contains a glass bead filler with at least one coating. The coating comprises at least one siliconfunctional silane selected from the group consisting of alkyl silanes and aryl silanes and is present in an amount between 0.02 and 1 wt% based on the weight of the uncoated beads. This coating limits adhesion between the glass beads and the matrix and confers an increased impact resistance on the article compared with one made with uncoated beads. Composite structures Healy, C.L. and Rankin, K. (Monicr Limited, Australia) US Pat 4 882 889 (28 November 1989) In support members, a pair of flanges joined by an imperforate, connecting web member are arranged to form a decking member within a concrete slab. At least one flange is located above the web and includes a lip portion with a number of apertures in it