Vibration damping composite laminate

Details Vibration damping composite laminate Vibration damping composite laminate

1985-06-26

1987-07-07

Terapane, John F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428408, 428460, 428461, B32B 516, B32B 1508, B32B 2742

Patent

active

046787070

ABSTRACT:
Disclosed is a vibration damping composite laminate of the type comprising a viscoelastic polymer composition layer interposed between two layers of metal, which is high in the damping effectiveness and can readily be spot-welded to metal structures. Essentially the polymer composition is a blend of a polyvinyl acetal resin and particulate carbon which amounts to 10-80 wt % of the composition, on condition that the ratio of the mean particle size of the particulate carbon to the thickness of the polymer composition layer is from 0.5 to 1.7. Optionally the polymer composition may further comprise a polyolefine resin and/or a plasticizer.

REFERENCES:
patent: 4062997 (1977-12-01), Hotta et al.
patent: 4210564 (1980-07-01), Pouchol
patent: 4265789 (1981-05-01), Christopherson et al.
patent: 4367113 (1983-01-01), Karim et al.
patent: 4463054 (1984-07-01), Nelson
Rosin-Rammler, "Journal of the Institute of Fuel", Oct. 1933, pp. 29-36.
Perry et al., "Perry's Chemical Engineers' Handbook", 6th Edition, pp. 8-5 through 8-9.

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