Sound and thermal insulating construction element

Details Sound and thermal insulating construction element Sound and thermal insulating construction element

1975-12-03

1977-06-14

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

260 23, 260 4R, 428320, 428323, B32B 500

Patent

active

040298396

ABSTRACT:
Carpet scraps are comminuted into small pieces having a maximum length of between 2 and 10 mm and are mixed with one component of a two-part synthetic-resin foam. The comminuted mixture containing the carpet scraps are then extruded in a thick band on top of a lower cover sheet and the other element of the synthetic-resin foam is sprayed over the band. Thereupon an upper cover sheet is applied to the band and the thus sandwiched band is passed between a pair of pressing belts as the components foam and harden.

REFERENCES:
patent: 2878153 (1959-03-01), Hacklander
patent: 3213071 (1965-10-01), Campbell
patent: 3401128 (1968-09-01), Terry
patent: 3616029 (1971-10-01), Lerman
patent: 3746610 (1973-07-01), Hoegger

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