Hydrophilic surface treating aqueous solution, hydrophilic surfa

Details Hydrophilic surface treating aqueous solution, hydrophilic surfa Hydrophilic surface treating aqueous solution, hydrophilic surfa

1995-03-28

1996-02-27

Szekely, Peter A.

Coating processes

With pretreatment of the base

Metal base

4273884, B05D 300

Patent

active

054947057

ABSTRACT:
It is the object of the present invention to provide a hydrophilic surface treating aqueous solution, hydrophilic surface treating method, and hydrophilic surface treating film with lasting hydrophilicity and ensuring a film having a good processability. The hydrophilic treating aqueous solution contains as main components a hydrophilic polymer having a specific molecular weight and containing a polyoxyalkylene chain of 10 wt % or more in terms of solid content, and a specific aqueous resin. This enables the formation of film with good processability and good hydrophilicity and persistency of hydrophilicity on the surface of aluminum or aluminum alloy for use in aluminum fins of a heat exchanger, as well as suppressing the generation of unpleasant odor.

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