METHOD FOR FORMATION OF BILAYER COATING FILM

PROBLEM TO BE SOLVED: To provide a method for formation of a bilayer coating film which is excellent in adhesion to a base material and cold-resistant thermal load property.SOLUTION: A bilayer coating film formation method for forming a coating film of two or more layers on a base material comprises...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	NAKAHARA SHUICHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for formation of a bilayer coating film which is excellent in adhesion to a base material and cold-resistant thermal load property.SOLUTION: A bilayer coating film formation method for forming a coating film of two or more layers on a base material comprises: a process in which a primer composition (A) containing a polyol (a1) having a bisphenol skeleton is coated onto a base material thereby forming a coating film of an undermost layer; and a process in which a top coat paint composition (B) containing a hydroxy group-containing acrylic resin (b1) having a glass transformation temperature (Tg) of -20°C or more and less than 50°C and a polyisocyanate compound (b2) is coated thereby forming a coating film of a top layer.SELECTED DRAWING: None 【課題】基材との密着性及び耐冷熱負荷性に優れた複層塗膜形成方法を提供すること。【解決手段】基材上に２層以上の塗膜を形成する複層塗膜形成方法であって、基材上にビスフェノール骨格を有するポリオール（ａ１）を含有する下塗り塗料組成物（Ａ）を塗装して最下層の塗膜を形成する工程、ならびにガラス転移温度（Ｔｇ）が−２０℃以上５０℃未満の水酸基含有アクリル樹脂（ｂ１）及びポリイソシアネート化合物（ｂ２）を含有する上塗り塗料組成物（Ｂ）を塗装して最上層の塗膜を形成する工程、を含む複層塗膜形成方法。【選択図】なし