POLYOLEFIN-BASED COATING COMPOSITION

This invention provides a paint formulation that is used as a primer of a polypropylene substrate for automotive exterior parts etc., that has better chemical resistance and high-pressure car washing resistance than in the past, and that has good storage stability of the paint. Specifically, provide...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KASHIHARA, Kenji, YAMASAKI, Hokuto
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	This invention provides a paint formulation that is used as a primer of a polypropylene substrate for automotive exterior parts etc., that has better chemical resistance and high-pressure car washing resistance than in the past, and that has good storage stability of the paint. Specifically, provided is a paint formulation comprising a modified polyolefin (A) having a glass transition temperature of -30°C or more and a (meth)acrylic resin (B) having a glass transition temperature of 0°C or more, and having a hydroxy value of 5 to 100 mgKOH/g or an acid value of 0 to 30 mgKOH/g, wherein a (meth)acrylic acid ester monomer constituting the (meth)acrylic resin comprises at least one member selected from methyl (meth)acrylate, ethyl (meth)acrylate, cyclohexyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, and an OH group-containing (meth)acrylate.