| 摘要 |
PURPOSE:To provide vibration damping characteristics excellent in wide frequency range and at the same time reduce temperature dependence by a structure wherein at least one layer of pressure-sensitive adhesive layers is used for inter- layer adhesives laminating the double layer part of a double layer structure mainly consisting of honey-comb cores. CONSTITUTION:At least one layer of pressure-sensitive adhesive layers is provided between honey-comb cores 2 and 2 or between a honey-comb core 2 and a flat plate. Rubber base pressure-sensitive adhesive such as natural rubber, polyisobutylene rubber, styrene-butadiene rubber and the like, sticking component such as acrylic acid alkyl ester having the number of carbon atoms of 4-12 or the like, and flocculating component such as acryl acid alkyl ester having the number of carbon atoms of 1-4 or the like are employed in pressure-sensitive adhesive layer. Paper, plastic, fiber reinforced plastic or the like is preferably employed as material for the honey-comb 2. Furthermore, paper, rubber sheet, fiber reinforced plastic sheet or the like is preferably employed as material for the flat plate. By the way, numeral 1 in the attached figure represents a vibrating body. |
