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US 5,691,002 AGranted
Coating method
AssigneeKansai Paint Co., Ltd.
InventorsHiroaki Oda, Masaru Mitsuji, Yasumasa Okumura, Hiroshi Inoue, Hisashi Isaka
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AssigneeKansai Paint Co., Ltd.
InventorsHiroaki Oda, Masaru Mitsuji, Yasumasa Okumura, Hiroshi Inoue, Hisashi Isaka
Estimating the term…
The coating method of the present invention comprises sequentially applying an amine-neutralized type aqueous intermediate coating composition and an amine-neutralized type aqueous top coating composition, the method being characterized in that a coating composition mainly comprising (A) an amine-neutralized base resin having a hydroxyl value of 30 to 150 KOH mg/g and an acid value of 15 to 50 KOH mg/g, (B) an amino resin and (C) an organic sulfonic acid amine salt is used as the amine-neutralized type aqueous intermediate coating composition. The method of the present invention can improve the adhesion between layers of a multi-layer coating film formed from aqueous coating compositions and chipping resistance of said coating film.
A coating method comprising sequentially applying an amine-neutralized aqueous intermediate coating composition and an amine-neutralized aqueous top coating composition, wherein a coating composition comprising (A) an amine-neutralized base resin having a hydroxyl value of 30 to 150 KOH mg/g and an acid value of 15 to 50 KOH mg/g, (B) an amino resin and (C) an organic sulfonic acid amine salt is used as the amine-neutralized aqueous intermediate coating composition.
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