Method and means for reducing heat transmission through a window

Details Method and means for reducing heat transmission through a window Method and means for reducing heat transmission through a window

1979-03-07

1981-03-17

Van Balen, William J.

Stock material or miscellaneous articles

Composite

Of fluorinated addition polymer from unsaturated monomers

52171, 52789, 160238, 156 71, 156109, 350 17, 428 34, 428918, 428920, B32B 1710, B32B 2730

Patent

active

042568080

ABSTRACT:
A method of reducing heat transmission through a window in a heated building, in a direction from the interior of the building to the building surroundings, while simultaneously maintaining complete visibility through the window both in, as well as against said direction, characterized in that a plastics film is applied to a window pane, said film being substantially fully transparent for visible light and which has substantially reduced transparency for a wavelength range corresponding to the heat radiation from the interior of the building. The film may comprise or consist of a polyethylene terephthalate film. Possibly a transparent polyvinyl fluoride film is also arranged in the window. Alternatively, a compound film comprising a polyethylene terephthalate film and a polyvinyl fluoride film is applied to the pane. Preferably the polyethylene terephthalate film is applied nearer to the interior of the building than the polyvinyl fluoride film. A means for carrying the method into effect comprises a compound film consisting of a polyethylene-terephthalate film and a polyvinyl fluoride film, said compound film being made with dimensions corresponding to the dimensions of a window pane and arranged for attaching thereto.

REFERENCES:
patent: 4095013 (1978-06-01), Burger
patent: 4158718 (1979-06-01), Kehl et al.

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