SILICONE SURFACTANTS FOR THE PRODUCTION OF OPEN CELL POLYURETHANE FLEXIBLE FOAMS

摘要

The present invention provides a polyurethane flexible foam comprising reacting an organic polyisocyanate with a polyol in the presence of a urethane catalyst, water as a blowing agent, a continuous cell opener as an optional component, and a polydimethylsiloxane bubble stabilizer composition. In the manufacturing method, the composition comprises at least 90% by weight of a polydimethylsiloxane molecule represented by the formula Me ₃ Si (OSiMe ₂ ) _n OSiMe ₃ , wherein n = 5 ~ 7, wherein n is 5, Provided are methods for producing a polyurethane flexible foam in which at least 15% by weight of three molecules of 6 and 7 are each present.