Nonwoven insulating webs

Details Nonwoven insulating webs Nonwoven insulating webs

1990-03-26

1991-11-19

Kendell, Lorraine T.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428361, 428375, 428379, 428389, 428285, 428286, 428289, B32B 700, D02G 300

Patent

active

050665383

ABSTRACT:
High performance, metallic coated staple fibers and nonwoven insulating webs made up of such fibers are produced. The process includes providing a nonwoven substantially two-dimensional web of fibers wherein at least a portion of 50 percent of the fibers are exposed to one or the other side of the web. This web is metallized with a low emissivity metal(s) and/or alloy(s) to produce a coated web wherein at least 50 percent of the surface area of the web fibers are coated with metal and or alloy. The coated web is shredded into individual, staple fibers which are thereafter united to produce a nonwoven, lofty three-dimensional insulating web having a density of between about 0.02 to 2 pounds per cubic foot.

REFERENCES:
patent: 2699415 (1955-01-01), Nachtman
patent: 2720076 (1955-10-01), Sachara
patent: 2731046 (1956-01-01), Bachner
patent: 2797469 (1957-07-01), Kahn
patent: 2862783 (1958-12-01), Drummond
patent: 4042737 (1977-08-01), Forsgren et al.
patent: 4312913 (1982-01-01), Rheaume

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