| 摘要 |
<p>Silicone polyether copolymer surfactants are disclosed which are useful as cell stabilizers in polyurethane flexible molded foams having the formula Me3Si(OSiMe2)x(OSiMeG)yOSiMe3 wherein G is a group having the formula -D(OR'')mA where D is a divalent organic linking radical, R'' is an alkylene group, x has an average value from 1 to 4.5 and y has an average value from 0.75 to 7.5, the value of x/y is from 0.25 to 5 and the value of x+y is from greater than 5 to 9, m has an average value from 1 to 5, and A denotes an -OR''' or an -OOCR''' group, where R''' is selected from methyl, ethyl or a combination of methyl and ethyl.</p> |
