发明申请
WO2022260841A1 SULFUR CONTAINING POLYISOCYANATE POLYADDITION (PIPA) POLYOL WITH IMPROVED FLAME RETARDANT PROPERTIES AND FOAMS CONTAINING THEM
审中-公开
基本信息:
- 专利标题： SULFUR CONTAINING POLYISOCYANATE POLYADDITION (PIPA) POLYOL WITH IMPROVED FLAME RETARDANT PROPERTIES AND FOAMS CONTAINING THEM
- 申请号：PCT/US2022/029991 申请日：2022-05-19
- 公开(公告)号：WO2022260841A1 公开(公告)日：2022-12-15
- 发明人： AHMADLOO, Hamideh , COOKSON, Paul A. , HOOSHYAR, Nasim , JELIC, Nebojsa
- 申请人： DOW GLOBAL TECHNOLOGIES LLC
- 申请人地址： 2211 H.H. Dow Way
- 专利权人： DOW GLOBAL TECHNOLOGIES LLC
- 当前专利权人： DOW GLOBAL TECHNOLOGIES LLC
- 当前专利权人地址： 2211 H.H. Dow Way
- 代理机构： THEKDI, Amy
- 优先权： US63/197,570 2021-06-07
- 主分类号： C08G18/18
- IPC分类号： C08G18/18 ; C08G18/20 ; C08G18/24 ; C08G18/30 ; C08G18/32 ; C08G18/48 ; C08G18/50 ; C08G18/66 ; C08G18/76
摘要：
The present invention provides a sulfur containing poiyisocyanate polyaddition (PIPA) polyether polyol dispersion at a readily processible viscosity for use in making flexible polyurethane foams having inherent flame retardant properties that comprises a polyether polyol carrier and from 10 to 25 wt.%, based on the total weight of the dispersion, of particles of a sulfur containing poiyisocyanate polyaddition (PIPA) polyether polyol having a particle size diameter (PSD), as determined by laser light scattering, of 90%, by volume, of the particles in the dispersion having a maximum PSD of from 0.2 to 4.5 μm and that, further, contain two or more aromatic carbamate groups. The dispersion may further comprise water or a blowing agent, g) one or more catalysts; and f) one or more polyisocyanates in a foam forming mixture. In addition, the present invention provides methods for making the sulfur containing PIPA polyether polyol dispersion comprising mixing polyol reactants under shear and delaying the addition of the sulfur containing polyol or extender reactant.
IPC结构图谱:
| C | 化学；冶金 |
| --C08 | 有机高分子化合物；其制备或化学加工；以其为基料的组合物 |
| ----C08G | 用碳—碳不饱和键以外的反应得到的高分子化合物 |
| ------C08G18/00 | 异氰酸酯类或异硫氰酸酯类的聚合产物 |
| --------C08G18/06 | .与具有活性氢的化合物 |
| ----------C08G18/08 | ..工艺过程 |
| ------------C08G18/10 | ...涉及第一反应步骤中异氰酸酯或异硫氰酸酯与含有活性氢的化合物反应的预聚物工艺过程 |
| --------------C08G18/18 | ....含有仲胺或叔胺或它们的盐 |