JPS645627B

A polyurethene powder enamel comprising a mixture of (a) an adduct of a uretidinedione dimer of isophorone diisocyanate and a diol having the following formula: +TR wherein: R = n>/=1, and R'=a divalent aliphatic, cycloaliphatic, araliphatic, or aromatic hydrocarbon radical, which is the res...

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Bibliographische Detailangaben
Hauptverfasser:	RAINERU GURAASU, YOOZEFU DEISUTERUDORUFU, HORUSUTO SHUNUURUBUTSUSHU
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A polyurethene powder enamel comprising a mixture of (a) an adduct of a uretidinedione dimer of isophorone diisocyanate and a diol having the following formula: +TR wherein: R = n>/=1, and R'=a divalent aliphatic, cycloaliphatic, araliphatic, or aromatic hydrocarbon radical, which is the residue of the diol, wherein the ratio of NCO to OH groups in the formation of said condensation product is from 1:0.5 to 1;0.9, the mole ratio of uretidinedione to diol is from 2:1 to 6:5, the content of free isocyanate groups in said adduct is not greater than 8% by weight, and said adduct has a molecular weight between 500 and 4000 and a melting point between 70 DEG C. and 130 DEG C., and (b) a polyol having an OH-functionality of 2.2 to 3.5, an average molecular weight of 2000 to 4500, a hydroxyl number of 30 to 100 mg KOH/g, a viscosity of