FOAM STABILIZING COMPOSITION INCLUDING A SILOXANE CATIONIC SURFACTANT AND COLLOIDAL SILICA
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United States of America Patent
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Issued Date -
Aug 22, 2024
app pub date -
Jun 21, 2022
filing date -
Jul 7, 2021
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Abstract
A foam stabilizing composition includes a) colloidal silica and b) a siloxane cationic surfactant. The siloxane cationic surfactant includes a cationic moiety having the formula Z1-D1-N(Y)a(R)2-a, where Z1 is a siloxane moiety, D1 is a divalent linking group, R is H or an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, subscript a is 1 or 2, and each Y has formula -D-NR13+, where D is a divalent linking group and each R1 is independently an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms. A firefighting includes the foam stabilizing composition and water. Methods of making and using the same are also provided.
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