BLOCKED ALIPHATIC DIISOCYANATE OR DIISOCYANATE ADDUCT

Blocked aliphatic di-isocyanates or di-isocyanate adducts(I), obtained by reacting (A) aliphatic di-isocyanates (A1) of formula OCN-R-NCO (in which R = 4-12C alkylene, optionally with 1-3 methyl or ethyl groups or with a cyclohexane residue instead of 4 CH2 groups) and/or isocyanurate, biuret or ure...

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Bibliographische Detailangaben
Hauptverfasser:	ERUMAARU UORUFU, RAINAA GURAASU
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 HETEROCYCLIC COMPOUNDS INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY 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:	Blocked aliphatic di-isocyanates or di-isocyanate adducts(I), obtained by reacting (A) aliphatic di-isocyanates (A1) of formula OCN-R-NCO (in which R = 4-12C alkylene, optionally with 1-3 methyl or ethyl groups or with a cyclohexane residue instead of 4 CH2 groups) and/or isocyanurate, biuret or urethane group- containing adducts thereof (A2) with (B) sec. amines with a b.pt. of 160 degrees C or above and with the formula (II), in which R , R = H, alkyl, cycloalkyl or aralkyl, or two R , two R or (R + R ) may form a ring (optionally substituted with 1-4 alkyl groups or containing O or NH instead of a CH2 group), in amounts corresponding to 0.5-1 mole amine (B) per mole NCO groups. Also claimed are heat-curable polyurethane (PU) coating powders with good storage stability, containing 100 pts. wt. poly:ol, 10-90 pts. wt. (I), 0-160 pts. wt. pigment, 0-200 pts. wt. fillers, 0-5 pts. wt. catalyst and 0.5-5 pts. wt. flow improver.