发明名称 |
LOW VISCOSITY POLYMER POLYOLS CHARACTERIZED BY A HIGH HYDROXYL NUMBER |
摘要 |
The present invention relates to novel polymer polyols which have low viscosities and high hydroxyl numbers, and to a process for the preparation of these novel polymer polyols. These polymer polyols have hydroxyl numbers of >= 20, solids contents of about 30 to about 65% by weight and a viscosity that is less than or equal to: be [2.7]. These comprise the reaction product of a base polyol, a preformed stabilizer and at least one ethylenically unsaturated monomer, in the presence of a free-radical polymerization initiator and at least one polymer control agent. The base polyol has a hydroxyl number of 60 to 1900, a functionality of 1 to 10, and an equivalent weight of 30 to 900. |
申请公布号 |
CA2559292(C) |
申请公布日期 |
2014.07.15 |
申请号 |
CA20062559292 |
申请日期 |
2006.09.06 |
申请人 |
BAYER MATERIALSCIENCE LLC |
发明人 |
ADKINS, RICK L.;CHAUK, SHRINIWAS S. |
分类号 |
C08G59/34;C08F2/38;C08F4/04;C08F4/32 |
主分类号 |
C08G59/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|