发明名称 |
CURABLE COMPOSITIONS CONTAINING SILYLATED POLYETHER BLOCK POLYMER-BASED POLYURETHANES |
摘要 |
The invention relates to a silylated polyurethane which is produced by reaction of at least one polyether compound having an OH number between 3 and 20 mg KOH/g (DIN 53783) and consisting of at least two polyoxyalkylene blocks A and B, wherein the number of carbon atoms in the alkylene units of blocks A and B differs by at least 1, with one or more isocyanate silanes of formula (I): OCN-R-Si-(R1)m(-OR2)3-m wherein m is 0, 1 or 2, every R2 represents an alkyl group with 1 to 4 carbon atoms, every R1 represents an alkyl group with 1 to 4 carbon atoms and R represents a difunctional organic group, to cap the hydroxyl groups of the prepolymer with the isocyanate silane, thereby producing a silylated polyurethane which has alkoxysilyl groups as the reactive end groups. The described silylated polyurethanes are suitable for producing adhesive, sealing or coating agent preparations that have good mechanical properties. |
申请公布号 |
WO2009130297(A3) |
申请公布日期 |
2011.01.06 |
申请号 |
WO2009EP54940 |
申请日期 |
2009.04.24 |
申请人 |
HENKEL AG & CO. KGAA;BACHON, THOMAS;ZANDER, LARS;GONZALEZ, SARA;KUNZE, CHRISTIANE;KLEIN, JOHANN;BRAUN, DANIELA |
发明人 |
BACHON, THOMAS;ZANDER, LARS;GONZALEZ, SARA;KUNZE, CHRISTIANE;KLEIN, JOHANN;BRAUN, DANIELA |
分类号 |
C08G18/48;C08G18/71;C09J175/04 |
主分类号 |
C08G18/48 |
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