Thermally insulating duct liner

Details Thermally insulating duct liner Thermally insulating duct liner

1976-03-12

1978-07-18

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

138DIG2, 428138, 428285, 428286, 428323, 428426, 428920, B32B 310

Patent

active

041017005

ABSTRACT:
Disclosed herein is a flexible thermally insulating duct liner comprising a fibrous thermal insulation layer having an organic fibrous layer having an open structure bonded to its working face, the working face being thereafter coated with a flame retardant vinyl polymer containing coating. The duct liner of the present invention has an extremely smooth surface which reduces air friction to a minimum. Still the product is very flexible, easy to work with, and resistant to delamination or working surface failure.

REFERENCES:
patent: 1503337 (1924-07-01), Seigle
patent: 2720109 (1955-10-01), Ehrlich
patent: 3092529 (1963-06-01), Pearson
patent: 3149019 (1964-09-01), Skotnecki et al.
patent: 3374142 (1968-03-01), Kreckl
patent: 3513065 (1970-05-01), Pearson
patent: 3547162 (1970-12-01), Schaerer
patent: 3712846 (1973-01-01), Daniels et al.
patent: 3926894 (1975-12-01), Clark

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