Silicone surfactants containing cyclic siloxane pendants
AssigneeUnion Carbide Corporation
InventorsRichard A. Budnik, Gerald J. Murphy
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Abstract
Novel siloxane-polyether polymers are provided containing cyclic siloxanes which are useful in silicone surfactants for foam polyurethane foam applications. The novel polymers are prepared by reacting a polyhydridosiloxane polymer with a cyclic polysiloxane containing a vinyl group and with an allyl started polyoxyalkylene polymer in the presence of a platinum catalyst. The resulting polymeric products are highly potent and impart flat breathability profiles to foams when used as surfactants in their preparation.
Claims8
A siloxane-polyether surfactant comprising a siloxane backbone to which is attached both polyether groups and cyclic siloxane groups said cyclic siloxane groups being free of reactive groups and which are attached to the siloxane backbone through Si--CH.sub.2 --CH.sub.2 --Si linkages.
Dependencies are inferred from the claim text.