Method for forming coating film on internal surface of...

Details Method for forming coating film on internal surface of... Method for forming coating film on internal surface of...

2005-05-17

2005-05-17

Beck, Shrive P. (Department: 1762)

Coating processes

Interior of hollow article coating

Vacuum or pressure utilized

C427S077000, C427S372200, C427S375000

Reexamination Certificate

active

06893677

ABSTRACT:
A method for forming a coating film on an internal surface of an elongated tube, includes longitudinally holding the elongated tube, applying a coating solution to the internal surface of the elongated tube; and drying the coating solution while carrying out a heat process for sequentially heating the elongated tube by using a heat source. The heat process includes adjusting the descending rate of the heat source so that a through-hole in the elongated tube is clogged with the coating solution whose viscosity is reduced by heating of the heat source, and sucking the through-hole in the elongated tube from the lower side thereof so that a portion of the through-hole that is clogged with the coating solution moves downwards along the elongated tube.

REFERENCES:
patent: 6018859 (2000-02-01), Borzym et al.
patent: 6399145 (2002-06-01), Jerebic et al.
patent: 61-103187 (1986-05-01), None
patent: 11-162358 (1999-06-01), None

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