Process for firmly bonding a thermoplastic covering sheet on a h

Details Process for firmly bonding a thermoplastic covering sheet on a h Process for firmly bonding a thermoplastic covering sheet on a h

1982-02-22

1984-01-31

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 86, 156 87, 156285, 156286, B32B 3120

Patent

active

044287895

ABSTRACT:
A process for firmly bonding a thermoplastic covering sheet on a hard article, for example, a steel pipe or cable, comprising wrapping a heat-shrinkable covering sheet having an adhesive layer around a portion of the peripheral surface of a hard article to be protected and heating the covering sheet so as to shrink it, which process is characterized by placing a pressing band on the covering sheet and by creating a pressure in the pressing band, so as to press the covering sheet against the hard article, thereby removing air bubbles formed between the covering sheet and the hard article.

REFERENCES:
patent: 2411438 (1947-04-01), Watts
patent: 3235289 (1966-02-01), Jones
patent: 3276929 (1966-10-01), Ferch
patent: 3610291 (1971-10-01), Heslop et al.
patent: 4101353 (1978-07-01), Watson
patent: 4209352 (1980-06-01), Diaz et al.

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