Laminates, panels and methods for making them

摘要: Sandwich panels and methods of making them, i.e., laminates which comprise two metal sheets with a filled resin core between bonded sheets, are useful for structural other uses wherein the utilize combinations skins, surface preparation, resins, fillers, reinforcement together in sandwich structure to provide laminate having flexural modulus at least 1.7 million psi, rigidity index about 2,000 unique properties enable be particularly thin wall trailer body construction, as well non-structural uses. A property structures falling ball impact test disclosed used characterize laminates. plywood or reconstituted wood product core, such hardboard, particleboard flakeboard, prepared surfaces also has suitable