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

1981-12-31

1984-06-26

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

428355, 521 92, 521134, 521140, 521 98, C08J 900

Patent

active

044567057

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.

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