POLYURETHANE PREPOLYMER AND AQUEOUS POLYURETHANE DISPERSION
摘要
The invention relates to a polyurethane prepolymer prepared by reacting a mixture comprising a short-chain renewable diisocyanate and a long-chain renewable diisocyanate and one or more diols. The short-chain renewable diisocyanate has at most 10 atoms and at most two ether group between the two isocyanate groups, and has at most 16 carbon atoms in the molecule. The long-chain renewable diisocyanate has either more than 12 atoms or more than ether group between the two isocyanate groups, or has more than 20 carbon atoms in the molecule. The invention also relates to an aqueous dispersion comprising the polyurethane prepolymer and a coating obtainable from the prepolymer.
申请公布号
WO2011098272(A3)
申请公布日期
2011.11.24
申请号
WO2011EP00621
申请日期
2011.02.10
申请人
STICHTING DUTCH POLYMER INSTITUTE;BENTHEM VAN, RUDOLFUS, ANTONIUS, THEODOR;HAVEREN VAN, JACCO;KONING, CORNELIS EME;LI, YINGYUAN
发明人
BENTHEM VAN, RUDOLFUS, ANTONIUS, THEODOR;HAVEREN VAN, JACCO;KONING, CORNELIS EME;LI, YINGYUAN