HIGH WEATHERABILITY REGIN COMPOSITIONS FOR ELECTRODEPOSITION COATING

Provided are high weatherability resin composition for an electrodeposition paint which is high in weather resistance, a method for preparing a polyepoxide-polyoxyalkylene diamine resin, and an electrodeposition paint composition containing the resin composition. The high weatherability resin compos...

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Bibliographische Detailangaben
Hauptverfasser:	SHON, DUK SU, JUNG, MAN YONG, HONG, SUK CHAN, LEE, NAM JU, YANG, HAN JU
Format:	Patent
Sprache:	eng
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:	Provided are high weatherability resin composition for an electrodeposition paint which is high in weather resistance, a method for preparing a polyepoxide-polyoxyalkylene diamine resin, and an electrodeposition paint composition containing the resin composition. The high weatherability resin composition comprises 25-35 parts by weight of a main resin comprising an aliphatic polyol and a polyepoxide; 12-16 parts by weight of a curing agent comprising a trivalent or more valent alcohol and an aliphatic or alicyclic isocyanate blocked with a primary or secondary alcohol; and 1-13 parts by weight of a anti-cratering agent containing a hydroxyl group at the both terminals of polyepoxide-polyoxyalkylene diamine molecule. Preferably the anti-cratering agent is a polymer represented by the formula(2), wherein R is represented by the formula(2-a); and n is 0-3.