Weatherstrip and methods for making same

Details Weatherstrip and methods for making same Weatherstrip and methods for making same

E - Fixed Constructions

06

B

108/57

E06B 7/22 (2006.01) D04H 11/00 (2006.01)

Patent

CA 1143222

ABSTRACT OF THE DISCLOSURE Weatherstrip is composed of a substrate having a pile strip upstanding from one surface thereof and con- taining a barrier strip within the pile strip. In one embodiment the substrate is made of two different materials, one of which is a thermoplastic material that is heat seal- ed, by being passed over a heated bar, to prevent the edges of the weatherstrip from fraying. The other material maintains the structural integrity of the substrate during heat sealing. The substrate also has a region or strip adjacent the pile to which a flexible, impervious, barrier strip can be heat sealed, this region being of the same material as the barrier strip and of a different material than the thermoplastic material. In another embodiment the substrate may be composed entirely or partly of the thermoplastic material, and the same thermoplastic material is extruded onto the back of the substrate.

368721

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