Armstrong, Nikaido, Marmelstein, Kubovcik & Murray
Aluminum heat exchanger provided with fins having hydrophilic coating
 The fins of an aluminum heat exchanger are treated with a coating composition comprising an alkali silicate, an inorganic hardening agent and a water-soluble organic high-molecular-weight compound, whereby a hydrophilic coating is formed over the surfaces of the fins. 
Showa Aluminum Corporation
C C C C
C04B C23C C04B C04B
additional inventional additional inventional
Masaaki Eizo Susumu Tatsuo
Mizoguchi Isoyama Inoue Otsuka