Low-foaming alkoxy-bis(trialkoxysiloxy)-silane surfactants

C - Chemistry – Metallurgy – 07 – F

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Details

260/445.1

C07F 7/04 (2006.01) C07F 7/02 (2006.01) C07F 7/18 (2006.01) C11D 1/82 (2006.01)

Patent

CA 1160244

C-7561 LOW-FOAMING ALKOXY-BIS(TRIALKOXYSILOXY)-SILANE SURFACTANTS ABSTRACT Novel surface active agents are disclosed having the formula: Image wherein R is hydrogen, an alkyl, alkenyl, aryl or aralkyl group; each R' is independently selected from the same group as R with the proviso that at least a majority of R' radicals attached to each Si atom are sterically hindered alkyl groups having at least 3 carbon atoms; each R"' independently is selected from hydrogen or methyl; and n is an integer of from about 10 to about 75.

350380

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