| 摘要 |
<p>Organosilicone compositions are provided which comprise polysiloxane-polyoxyalkylene copolymers containing monofunctional siloxy units (Mo) and difunctional siloxy units (Do), an average of between about 2 and about 100 silicon-bonded morpholino-bearing groups (Q) for every two moles of Mo and an average of between 2 and about 30 silicon-bonded, organic-capped polyoxyalkylene blocks (E) for every two moles of Mo, the monofunctional units encompassed by Mo having at least two alkyls bonded to the respective silicon atoms thereof and the difunctional units encompassed by Do having at least one alkyl bonded to the respective silicon atoms thereof, the remaining organic group bonded to silicon of said monofunctional and difunctional siloxy units being alkyl, Q or E. The polymers of the invention find particular application in the manufacture of cellular urethane products including flame-retarded urethane foam.</p> |
