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.


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    Title :

    Crosslinking with malonate blocked isocyanates and with melamine resins


    Contributors:
    He, A.Z. (author) / Blank, W.J. (author)

    Published in:

    Publication date :

    1999


    Size :

    6 Seiten, 26 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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