Process for sealing a plurality of polybutylene sheets

Details Process for sealing a plurality of polybutylene sheets Process for sealing a plurality of polybutylene sheets

1978-05-22

1981-01-06

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156497, 156498, 156499, B29C 2500, B32B 3124

Patent

active

042434491

ABSTRACT:
A linear seal joining a plurality of polybutylene sheets is produced by (1) clamping the sheets between a pair of heat conducting members with free edges of the sheets protruding to form a relaxed skirt, (2) concentrating fusing heat on the skirt to form a tacky weld joining the free edges, and (3) subjecting the weld to an aqueous surfactant fluid by which unwanted tackiness of the weld is eliminated. Apparatus is disclosed for performing the foregoing process. A polybutylene product of the foregoing process is disclosed.

REFERENCES:
patent: 2488212 (1949-11-01), Lloyd
patent: 2606850 (1952-08-01), Piazze
patent: 2691474 (1954-10-01), Olson
patent: 2979113 (1961-04-01), Stageberg
patent: 3066064 (1962-11-01), Pommer
patent: 3413175 (1968-11-01), Rochla
patent: 3736219 (1973-05-01), McTaggart

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