Formed structures based on synthetic fibers and having soundproo

Details Formed structures based on synthetic fibers and having soundproo Formed structures based on synthetic fibers and having soundproo

1979-03-30

1982-04-13

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428296, 428340, 428378, 428394, 428396, 428407, 428903, 181294, 252 62, B32B 2712, D04H 158

Patent

active

043248314

ABSTRACT:
Formed structures comprising synthetic thermoplastic fibrils or fibrids having a surface area (specific surface) higher than 1 m.sup.2 /g and useful for soundproofing purposes are provided. Methods for making the structures are also disclosed.

REFERENCES:
patent: 2574849 (1951-11-01), Talalay
patent: 3005795 (1961-10-01), Busse et al.
patent: 3853608 (1974-12-01), Hammer et al.
patent: 3914497 (1975-10-01), Kanehira et al.
patent: 3935046 (1976-01-01), Kiernan et al.

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