Polyethers and polysiloxane copolymers manufactured with double metal cyanide catalysts
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United States of America Patent
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Mar 2, 1999
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N/A
app pub date -
Oct 13, 1998
filing date -
Jul 30, 1996
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Abstract
The invention discloses a new class of silicone surfactants and their use for the preparation of flexible urethane foam. The surfactants incorporate high molecular weight polyethers prepared with narrower molecular weight distributions than conventional polyethers. These polyethers are prepared using a double metal cyanide (DMC) catalyst. These surfactants are better foam stabilizers than the analogous surfactants prepared from conventional polyethers.
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