Weatherstripping including method and apparatus for the manufact

Stock material or miscellaneous articles – Pile or nap type surface or component

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156 72, 156228, 156285, 156435, 428 89, 428 92, 428 95, 428 96, 428 97, B32B 3300

Patent

active

046998187

ABSTRACT:
A method of manufacturing weatherstripping comprises forming a row of pile fiber on a substrate, compressing the row widthwise between a pair of dies, heating the row while so compressed, and cooling the heated row. In this way the sides of the row can be heat set for appearance, or formed into a continuous film, or the whole row converted into a barrier fin in the form of a film, depending upon the degree of compression and the temperature. Preferably the row is formed by tufting and the dies disposed immediately downstream of the tufting station. Pile fiber of conjugate polyethylene and polypropylene is advantageous in forming such films which are integrally attached to the substrate by pile fiber roots extending from the base of the film into the substrate.

REFERENCES:
patent: 3175256 (1965-03-01), Horton
patent: 3404487 (1968-10-01), Johnson
patent: 3616137 (1971-10-01), Horton
patent: 3745053 (1973-07-01), Johnson et al.
patent: 4164599 (1979-08-01), Kessler
patent: 4352845 (1982-10-01), Miska

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