SCHIMPFF, David,DUNHAM, Bruce,FRISZ, William,ZHANG, Jun Q.
申请号：
EP20130715559
公开号：
EP2830784(B1)
申请日:
2013.03.27
申请国别(地区):
欧洲专利局
年份:
2017
代理人:
摘要：
Embodiments of a method of pretreating a metal substrate prior to painting comprise applying a first coating solution onto the metal substrate wherein the first coating solution comprises polyaniline particles at a pH less than 7 to yield a first coating on the metal substrate, rinsing the metal substrate to remove unreacted polyaniline particles, and applying a second coating solution post-rinse which comprises at least one acid and a silane composition at a pH less than 7 to yield a second coating on the metal substrate.
