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US 4,663,224 AGranted
Vibration-suppressing sound-shielding board
AssigneeBridgestone Corporation
InventorsKeiichirou Tabata, Nobufumi Matsudaira, Shozo Sugiki
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AssigneeBridgestone Corporation
InventorsKeiichirou Tabata, Nobufumi Matsudaira, Shozo Sugiki
Estimating the term…
A composite board having an excellent vibration-suppressing sound-shielding performance can be obtained by joining a plurality of board materials with each other by the intermediary of a tacky adhesive. This tacky adhesive contains, as its principal components, one or more kinds of polymers selected from the group consisting of natural rubber, synthetic rubbers, various resins (acrylic resin, silicone resin, etc.). A sheet-like base material such as a paper sheet can be used in association with the tacky adhesive layer in the composite board, and such type of composite boards have an excellent vibration-suppressing sound-shielding performance as compared to the composite boards in which the tacky adhesive layer is not associated with a sheet-like material.
A vibration-suppressing sound-shielding board comprising a plurality of the same kind or of different kinds of boards selected from the group consisting of gypsum plaster boards, asbestos cement boards, calcium silicate boards, plywood boards and glued wood chip boards and a layer or layers of a tacky adhesive intervening between said board materials, said tacky adhesive consisting essentially of one or more kinds of polymers selected from the group consisting of natural rubber, synthetic rubber and various resins, the properties of said tacky adhesive being represented by a pealing tack force of about 200-5000 gf/20 mm and a tensile tack force of about 1-15 kgf/cm.sup.2.
A vibration-suppressing sound-shielding board comprising a plurality of board materials and at least one tacky adhesive layer associated with a sheet-like base material and intervening between said board materials.
A composite vibration-suppressing, sound-shielding construction board comprising:
Dependencies are inferred from the claim text.