PRIMER COATING COMPOSITION

The present invention relates to a primer coating composition that includes, (a) a (meth)acrylic polymer that includes hydroxyl groups, and which has a Tg of at least 30°C. The primer coating composition further includes, (b) a polyester that includes hydroxyl groups, and which has a weight average...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KIBLER, Kimberly S, DENG, Jun, SCHUMACHER, Steven D, THOMAS, Stephen J, MARTZ, Jonathan T
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:	The present invention relates to a primer coating composition that includes, (a) a (meth)acrylic polymer that includes hydroxyl groups, and which has a Tg of at least 30°C. The primer coating composition further includes, (b) a polyester that includes hydroxyl groups, and which has a weight average molecular weight of less than 3000, and a hydroxyl value of at least 100. The primer coating composition also includes, (c) a crosslinking agent having at least two isocyanate groups. The present invention also relates to a coated article that includes a repaired area that includes a primer coating formed from the primer coating composition of the present invention. The primer coating compositions, in accordance with some embodiments, provide reduced or minimal ringing defects.