Weatherstrip with substrate of two different materials

Stock material or miscellaneous articles – Pile or nap type surface or component – Particular shape or structure of pile

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49475, 49489, 156 72, 428 95, 428 97, 428259, D04H 1100

Patent

active

042884829

ABSTRACT:
Weatherstrip is composed of a substrate having a pile strip upstanding from one surface thereof and containing 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 sealed, 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.

REFERENCES:
patent: 3175256 (1965-03-01), Horton
patent: 3266190 (1966-08-01), Jackson
patent: 3404487 (1968-10-01), Johnson

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