Automotive clearcoats with improved acid etch resistance are being formulated using a combination of a dialkyl malonate blocked polyisocyanate, a melamine crosslinker, and an acrylic polyol. These coatings contain lower levels of melamine crosslinker compared to conventional acrylic/ HMMM systems and show excellent acid etch resistance. We explored the reaction mechanism of this complex crosslinking system and found explanations for the good chemical resistance properties.
Crosslinking with malonate blocked isocyanates and with melamine resins
Journal of Coatings Technology - jct ; 71 , 889 ; 85-90
1999
6 Seiten, 26 Quellen
Article (Journal)
English
The Use of Blocked Isocyanates in Automotive OEM Clearcoats
SAE Technical Papers | 1995
|The use of blocked isocyanates in automotive OEM clearcoats
Automotive engineering | 1995
|The Use of Blocked Isocyanates in Automotive OEM Clearcoats
British Library Conference Proceedings | 1995
|Catalyzed crosslinking of highly functional biobased epoxy resins
British Library Online Contents | 2013
|