POLYURETHANES, DISPERSIONS THEREOF, THEIR PREPARATION AND USE

The present invention relates to polyurethanes (A) being obtainable by reaction of (a)15% to 70% by weight of di-or polyisocyanate comprising on average from 1 to 10 allophanate groups and on average from 1 to 10 C-C double bonds per molecule, and optionally (b) 0% to 60% by weight of further di-or...

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Bibliographische Detailangaben
Hauptverfasser:	BERGER, SEBASTIAN, KACZUN, JÜRGEN, TRANTER, K. SHAUN, THÜRY, PETER, HICKL, MARKUS, BEK, MARTIN KAARUP, ZIJLSTRA, STEVEN
Format:	Patent
Sprache:	eng ; fre
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:	The present invention relates to polyurethanes (A) being obtainable by reaction of (a)15% to 70% by weight of di-or polyisocyanate comprising on average from 1 to 10 allophanate groups and on average from 1 to 10 C-C double bonds per molecule, and optionally (b) 0% to 60% by weight of further di-or polyisocyanate, with (c) 5% to 50% by weight of compounds having at least two isocyanate-reactive groups, comprising at least one polycarbonate diol with a molecular weight from 500 to 3000g/mol weight %ages being based on total polyurethane (A), with the proviso that the total is 100%. La présente invention concerne des polyuréthannes (A) pouvant être obtenus par la réaction de (a) entre 15 % et 70 % en poids de diisocyanate ou polyisocyanate comportant en moyenne entre 1 et 10 groupes allophanates et en moyenne entre 1 et 10 liaisons doubles C-C par molécule, et éventuellement (b) entre 0 % et 60 % en poids davantage de diisocyanate ou polyisocyanate, avec (c) entre 5 % et 50 % en poids de composés comprenant au moins deux groupes réactifs à l'isocyanate, comportant au moins un diol de polycarbonate avec un poids moléculaire compris entre 500 et 3000 g/mol, les pourcentages pondéraux étant basés sur le polyuréthanne total (A), à condition que le total soit 100 %.