Process for heating thin surface layers

Details Process for heating thin surface layers Process for heating thin surface layers

1979-11-02

1981-09-15

Camby, John J.

Heating

Processes of heating or heater operation

Continous strip, strand or web passed longitudinally through...

F27B 928

Patent

active

042894808

ABSTRACT:
In the lamination of thermoplastic polymer layers to substrates a thin surface layer of the substrate can be heated to improve adhesion without substantially heating the mass of the substrate by advancing the exposed surface of the thin layer in surface-conforming contact with a heated surface for 0.1 to one second at an interface pressure of 0.1 to 5 kilograms per centimeter of substrate width, the heated surface having an initial temperature of 35.degree.-350.degree. C.

REFERENCES:
patent: 2352444 (1944-06-01), Miller
patent: 2910351 (1959-10-01), Szpak et al.
patent: 2919179 (1959-12-01), Van Wagner
patent: 3106479 (1963-10-01), Evans
patent: 3591276 (1971-07-01), Byrne
patent: 3865540 (1975-02-01), Loeffler

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