Mass loaded coating and method for reducing the resonant frequen

Details Mass loaded coating and method for reducing the resonant frequen Mass loaded coating and method for reducing the resonant frequen

1993-09-27

1999-10-26

Niland, Patrick D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

29594, 296091, 4273722, 427384, 427386, 4273936, 4284231, 4284259, 524439, 524589, 524590, 524779, 524780, 524783, C08J 300, C08K 320, C08L 7500, H04R 3100

Patent

active

059730510

ABSTRACT:
A mass-loaded coating includes a predetermined mass of powdered lead which s mixed preferably in a ratio of 3:1 with a liquid polyurethane primer. When painted onto the surface of a disc or plate, the coating mass-loads the disc and lowers the resonant frequency of the disc without significantly increasing the physical dimensions of the disc. Thicker consistency adhesives, such as spreadable paste adhesives or thick putty-like adhesives may be substituted for mass-loading objects having irregular surface textures or complex shapes.

REFERENCES:
patent: 4079162 (1978-03-01), Metzger
patent: 5278219 (1994-01-01), Lilley et al.

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