Plastic double-cell covering for architectural openings

摘要

A cellular covering for an architectural opening includes a plurality of elongated, longitudinally connected and transversely collapsible cellular units composed of inner and outer cells where the outer cell is a woven, knit, or non-woven product and the inner cell is an air-impermeable film which may be treated to be a low-modulus film with acceptable surface tension so that the panel formed from the cellular units has improved insulative properties and has a relatively long life.

主权项

1. A cellular covering for an architectural opening, said cellular covering comprising:
a plurality of interconnected elongated tubular transversely collapsible outer cells forming an expandable and collapsible panel movable between extended and retracted positions, wherein: each said outer cell includes a tubular transversely collapsible inner cell secured within said outer cell by at least one adhesive line and expandable and collapsible with expanding and collapsing of said panel; said inner cell comprises a transparent or translucent orientated polypropylene film and includes a polyvinylidene chloride coating overlying at least a portion of said orientated polypropylene film and positioned between said orientated polypropylene film and said outer cell; said at least one adhesive line is positioned between said polyvinylidene chloride coating and said outer cell; and wherein said outer cells are air permeable.