发明名称 |
PIPA Polyol Based Conventional Flexible Foam |
摘要 |
A process for forming a conventional flexible polyurethane foam includes providing a polyol component including a PIPA polyol that is a dispersion having a solids content from 10% to 75 wt %, based on a total weight of the PIPA polyol, providing an isocyanate component that includes at least one polyisocyanate, providing an additive component that includes a catalyst, and forming a reaction mixture including the polyol component, the isocyanate component, and the additive component to form a flexible polyurethane foam with a resiliency value below 45%. The reaction mixture has an isocyanate index from 90 to 150. The PIPA polyol is a reaction product of a mixture including at least a low equivalent weight polyol having a number average hydroxyl equivalent weight of less than 80, a polyisocyanate compound having a number average isocyanate equivalent weight that is less than 225, and a liquid base poly ether polyol having a number average hydroxyl equivalent weight from 200 to 1500 and at least 80% of secondary hydroxyl groups based on a total amount of hydroxyl groups in the liquid base polyether polyol. |
申请公布号 |
US2016208040(A1) |
申请公布日期 |
2016.07.21 |
申请号 |
US201414917000 |
申请日期 |
2014.09.11 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
Cookson Paul A.;Amici-Kroutilova Irena;Lora Lamia Alberto;Casati Francois |
分类号 |
C08G18/48;C08G18/08;C08G18/62;C08G18/16;C08G18/76 |
主分类号 |
C08G18/48 |
代理机构 |
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代理人 |
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主权项 |
1. A process for forming a conventional flexible polyurethane foam, the process comprising:
providing a polyol component including a PIPA polyol that is a dispersion having a solids content from 15% to 75 wt %, based on a total weight of the PIPA polyol, the PIPA polyol being prepared in the absence of a tin catalyst from a reaction product of a mixture including at least a low equivalent weight polyol having a number average hydroxyl equivalent weight of less than 80, a polyisocyanate compound having a number average isocyanate equivalent weight that is less than 225, and a liquid base polyether polyol having a number average hydroxyl equivalent weight from 200 to 1500 and at least 80% of secondary hydroxyl groups based on a total amount of hydroxyl groups in the liquid base polyether polyol; providing an isocyanate component that includes at least one polyisocyanate; providing an additive component that includes a catalyst; and forming a reaction mixture including the polyol component, the isocyanate component, and the additive component to form a flexible polyurethane foam with a resiliency value below 45%, the reaction mixture having an isocyanate index from 90 to 150. |
地址 |
Midland MI US |