Heat-fusible-expandable mastic for automobile floor pans

Details Heat-fusible-expandable mastic for automobile floor pans Heat-fusible-expandable mastic for automobile floor pans

1984-04-16

1985-01-22

Foelak, Morton

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

428355, 428489, 521 83, 521134, 521140, B32B 326

Patent

active

044952406

ABSTRACT:
The invention relates to a relatively inexpensive, non-blocking, low density sound deadening mastic material. Essentially, the composition of the improved sound deadening mastic material of this invention includes a mineral filler, an elastomer, a polymeric modifier and a foaming (or blowing) agent. The mastic material is particularly useful in sheet form for automotive applications.

REFERENCES:
patent: 2981361 (1961-04-01), Schofield
patent: 3725315 (1973-04-01), Bauer
patent: 4010123 (1977-03-01), Blunt et al.
patent: 4456705 (1984-06-01), McCarthy

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