Lightweight construction materials and articles made thereof

Details Lightweight construction materials and articles made thereof Lightweight construction materials and articles made thereof

1973-07-16

1976-03-02

Lesmes, George F.

Beds

Bedsteads

Element or detail

5355, 428131, 428179, 428310, 428315, A47C 2715, A47C 2722

Patent

active

039408116

ABSTRACT:
Lightweight construction materials having a low heat shrinking percentage and a high moisture permeability obtained by forming complementary concavoconvex patterns by means of press molding on both surfaces of a sheet of a foamed polyethylene type resin containing a relatively large amount of inorganic calcic filler, cushion made of said construction materials and mattress manufactured by laminating sheets of soft polyurethane foam on the lightweight construction material as core and covering the whole with cloth.

REFERENCES:
patent: 2898975 (1959-08-01), Wagner
patent: 3203921 (1965-08-01), Rosenfelder
patent: 3323152 (1967-06-01), Lerman
patent: 3525663 (1970-08-01), Hale
patent: 3553068 (1971-01-01), Coale
patent: 3645929 (1972-02-01), Normanton et al.
patent: 3711438 (1973-01-01), Susuki et al.
patent: 3834487 (1974-09-01), Hale

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