Composite foamed material

Details Composite foamed material Composite foamed material

1981-01-26

1981-12-22

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264109, 264122, 264DIG7, 521 59, 521137, 521139, C08J 922

Patent

active

043072003

ABSTRACT:
A composite foamed material and a process for the production thereof are disclosed herein, the process comprising premixing expandable or expanded polystyrene beads, a binder and fragments of resilient, open-celled neoprene. The materials are combined in the proportions of about 4-15% polystyrene beads, about 6-25% binder and about 60-90% open-celled neoprene. The combined materials are preferably compressed to a density of about 5-30 lbs. per cubic foot, more preferably 5-17 lbs. per cubic foot, and steam is applied to the compressed materials to cure the binder, and in certain embodiments to expand the polystyrene beads, thereby producing the desired composite foamed material.

REFERENCES:
patent: 4240998 (1980-12-01), Lichter et al.
patent: 4241190 (1980-12-01), Lichter et al.

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