Thermal insulation layer

Details Thermal insulation layer Thermal insulation layer

1984-03-12

1985-06-25

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428138, 428166, 428172, 428178, 428285, 4283166, 4283191, 428913, B32B 310, B32B 312, B32B 532, B32B 1500

Patent

active

045254060

ABSTRACT:
A thermal insulation layer, suitable for use in a duvet, comprises a convection inhibiting structure and at least one surface with a low thermal emissivity. The structure may be a flexible cellular foam sheet or a web of fibrous material, while the low emissivity surface may be a coating on the sheet or on a thin flexible thermally insulating film. Perforations are provided through the foam sheet or the film to permit diffusion of water vapour through the layer, and the layer may include an additional web of fibrous material or feathers adjacent to the low emissivity surface.

REFERENCES:
patent: 1345046 (1920-06-01), Wedlock
patent: 4136222 (1979-01-01), Jonnes
patent: 4420521 (1983-12-01), Carr

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