| 摘要 |
A graft polyol includes a natural oil including at least 50% by weight of a natural oil polyol. Particles are dispersed in the natural oil and comprise the reaction product of a macromer polyol, a polymerizable monomer, a chain transfer agent, and a free radical initiator. The macromer polyol and the polymerizable monomer react in the presence of the natural oil. The graft polyol is formed by providing the natural oil and providing the macromer polyol, the chain transfer agent, the free radical initiator, and the polymerizable monomer. The natural oil, the polymerizable monomer, the macromer polyol, the chain transfer agent, and the free radical initiator are combined, and the polymerizable monomer, the macromer polyol, the chain transfer agent, and the free radical initiator react to form particles dispersed in the natural oil. |
| 主权项 |
1. A graft polyol comprising:
A) a natural oil comprising at least 50% by weight of a natural oil polyol represented by formula (I);and
B) particles dispersed in said natural oil A) and comprising the reaction product of;
i) a reactor charge comprising a macromer polyol and a portion of said natural oil,ii) a polymerizable monomer,iii) a chain transfer agent, andiv) a free radical initiator, andv) optionally, a macromer charge different from said reactor charge and also comprising said macromer polyol; wherein said macromer polyol and said polymerizable monomer react in the presence of said natural oil. |
