发明申请
US20220033567A1 POLYURETHANE CAST ELASTOMERS BASED ON POLY(BUTYLENE OXIDE) POLYOLS AND METHOD FOR MAKING POLYURETHANE CAST ELASTOMERS
有权
基本信息:
- 专利标题： POLYURETHANE CAST ELASTOMERS BASED ON POLY(BUTYLENE OXIDE) POLYOLS AND METHOD FOR MAKING POLYURETHANE CAST ELASTOMERS
- 申请号：US17277187 申请日：2019-09-17
- 公开(公告)号：US20220033567A1 公开(公告)日：2022-02-03
- 发明人： Kshitish A. Patankar , Arjun Raghuraman , Thomas P. Willumstad , Mark F. Sonnenschein , Jody Henning , Heather A. Spinney , David R. Wilson , Sukrit Mukhopadhyay
- 申请人： Dow Global Technologies LLC
- 申请人地址： US MI Midland
- 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： US MI Midland
- 国际申请： PCT/US2019/051572 WO 20190917
- 主分类号： C08G18/79
- IPC分类号： C08G18/79 ; C08G18/48 ; C08G18/32 ; C08G18/66 ; C08G65/26
摘要：
Hydroxyl-containing copolymers of butylene oxide and ethylene oxide having a hydroxyl equivalent weight of at least 150, an average of 1.8 to 6 hydroxyl groups per molecule of which hydroxyl groups at least 70% are primary hydroxyl groups and an oxyethylene content of no greater than 10% by weight based on the weight of the copolymer, are useful for making polyurethanes. These polyols are characterized by high reactivity and fast curing times. Polyurethanes made using these polyols have excellent mechanical properties and are highly hydrophobic.
公开/授权文献:
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 |
| ------------C08G18/72 | ...多异氰酸酯或多异硫氰酸酯 |
| --------------C08G18/74 | ....环的 |
| ----------------C08G18/78 | .....氮 |
| ------------------C08G18/79 | ......以使用的多异氰酸酯为特征，这些多异氰酸酯具有由异氰酸酯或异硫氰酸酯齐聚而形成的基团 |