会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 85. 发明授权
    • Sandwich structures
    • 三明治结构
    • US2806509A
    • 1957-09-17
    • US59061556
    • 1956-06-11
    • GOODYEAR AIRCRAFT CORP
    • BOZZACCO FRANCIS ASHEATSLEY RAYMOND W
    • B29C70/02B29C70/66B32B27/00B64C1/00C08J9/32C08L61/10E04C2/20E04C2/284F16L59/08
    • B64C1/06B29C70/02B29C70/025B29C70/66B29K2105/04B29K2105/16B29K2105/165B29K2705/00B32B27/00B64C2001/0081C08J9/32E04C2/205E04C2/284F16L59/08Y02T50/433Y10S264/06Y10S264/07Y10T428/249974Y10T442/3463Y10T442/3553
    • Thin walled hollow heads are coated with a powdered metal and a thermosetting resin. The beads may be of silica gel, clay, aluminium oxide, sodium silicate, perlite, glass, ceramics or natural or synthetic resins, e.g. polystyrene, and may be in a proportion of 10 to 50%, preferably 15-50% by weight, of the resin. The metal may be aluminium, iron, zinc, tin, magnesium, copper, tungsten, lead, antimony, cadmium, bismuth, gold, silver or an alloy e.g. steel, bronze or brass and may be in a proportion of 3 to 50% by weight of the resin. The thermosetting resin may be a silicone resin, an expoxy resin, which may be compounded with a urea-, phenol-, or melamineformaldehyde resin, or may be esterified, a phenolaldehyde resin, a thermosetting polyester resin, or alkyd, a polyurethane, or a natural thermosetting resin, examples are given. The resin may be dissolved in a solvent, e.g. benzene toluene, gasoline, kerosine, methyl, ethyl, propyl, isopropyl or butyl alcohol, diethyl or diphenyl ether, methyl ethyl ketone or acetone, added to a mixture of the beads and powdered metal, and the solvent evaporated off. The resin may include a foaming ingredient.ALSO:Thin walled hollow beads are coated with a powdered metal and a thermosetting resin. The beads may be of silica gel, clay, aluminium oxide, sodium silicate, perlite, glass, ceramics or natural or synthetic resins, e.g. polystyrene, and may be in a proportion of 10 to 50%, preferably 15-50% by weight, of the resin. The metal may be aluminium, iron, zinc, tin, magnesium, copper, tungsten, lead, antimony, cadmium, bismuth, gold, silver or an alloy e.g. steel, bronze or brass and may be in a proportion of 3 to 50% by weight of the resin. The thermosetting resin may be a silicone resin, an epoxy resin, which may be compounded with a urea-, phenol-, or melamine-formaldehyde resin, or may be esterified, a phenol-aldehyde resin, a thermosetting polyester resin, or alkyd, a polyurethane, or a natural thermosetting resin; examples are given. The resin may be dissolved in a solvent e.g. benzene toluene, gasoline, kerosine, methyl, ethyl, propyl, isopropyl or butyl alcohol, diethyl or diphenyl ether, methyl ethyl ketone or acetone, added to a mixture of the beads and powdered metal, and the solvent evaporated off. The resin may include a foaming ingredient.