Reference

Corrosion prevention

Corrosion prevention. (Otsuka Furniture Industry Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59222276 A2 13 Dec 1984 Showa, 5 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: B05D007-14. ICS: C23F011-00. APPLICATION: JP 83-93832 26 May 1983. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) Section cross-reference(s): 55 Metal surfaces, such as furniture fittings, are prevented from corrosion under severe conditions by treating with a rust preventive-contg. compn. and then a UV absorber-contg. compn. (or in the reverse order). Thus, a brass plate was dip-coated in a soln. of benzotriazole [95-14-7] in a lacquer thinner (30 g/m2), dried, and then coated with a melamine resin compn. contg. 3,4-dihydroxybenzophenone [10425-11-3] (50 g/m2). No discoloration occurred on the plate even after 30 days in 5% NaCl, in an acidic vapor, or in 98% relative humidity whereas a plate without the first treatment began to discolor after 1, 2, and 8 days, resp.