NOVEL SILICIC ACID ESTER AND DEFOAMER THEREOF

Silicates of the general formula are used as foam inhibitors in foaming systems. In the above formula, X and Y are the group -OR or a methyl group, R is a polypropylene hydrglycol ether group and, if appropriate, a polyethylene glycol ether group which can be substituted by hydroxyalkyl, aminoalkyl,...

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Bibliographische Detailangaben
Hauptverfasser:	HANSU URURITSUHI HENPERU, ADORUFU ASUBEKU, HAINTSU MIYURAA, MARUGAREETE GURIYUUNERUTO, HORUGAA TESUMAN
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	Silicates of the general formula are used as foam inhibitors in foaming systems. In the above formula, X and Y are the group -OR or a methyl group, R is a polypropylene hydrglycol ether group and, if appropriate, a polyethylene glycol ether group which can be substituted by hydroxyalkyl, aminoalkyl, acyl, acylamino, dihydroxyalkyl and hydroxyaminoalkyl groups having 4 to 24 C atoms. The total number of the glycol ether groups is 1 to 100, the number of the polypropylene glycol ether groups being at least equal to or greater than the number of the ethylene glycol ether groups.