| 摘要 |
<p>1,160,575. Nets. UNION CARBIDE CORP. 31 Aug., 1966, No. 38810/66. Heading D1R. A self-supporting network is formed by looping a plurality of strands 26, 27 alternately onto advancing support members 32 and 34, e.g. upstanding pins mounted on chain 33, to form a criss-cross network 33, supplying a plurality of extra adhesive strands 64, 65, 66 into contact with the non-adhesive strands and between the crossing points thereof and bonding the strands together. The extra adhesive strands 64, 65, 66 can be (a) supplied longitudinally on at least one face of the network, as shown, (b) in a common plane between the sets of parallel strands, see Figs. 2 and 8, not shown or (c) longitudinally on each side of the network but with the adhesive strands being laterally offset from each other see Figs: 7, 9 and 10 not shown. The adhesive strands can be coated or impregnated with a latex, emulsion solution or melt of polyester, epoxy resin, phenolic resin, silicone, acrylic resin, melamine resin, polymer or copolymer of vinyl chloride, e.g. copolymer with vinyl acetate or vinylidene chloride, polystyrene polyamide, polycarbonate, styrene-acrylonitrile copolymer or chloro- or fluoro-carbon or rubbery resins. The criss-crossed strands 26, 27 can be cotton, nylon or fibreglass. The strands can be pressed prior to setting the adhesive e.g. with rollers (29, 62, 143) see Figs. 63 and 5, not shown. The adhesive strands can be aligned by a grooved roller (76), see Fig. 1, or a comb or reed. The net can be spread as described in Specification 1112561. The mesh size of the network can 'be reduced; in the embodiment shown this is achieved by releasing the looped strands from the pins 34 and resecuring it using two sets of gripping discs and 'bands onto drum 93 with gripping bands 94, 95, 98 and 99 which pinch the network with the looped edges bent at right angles. The drum 93 can also be heated.</p> |
