DEFOAMING AGENT COMPOSITION

PROBLEM TO BE SOLVED: To obtain the subject composition excellent in the initial defoaming effect and its sustainability, uniformly dispersible and less deteriorative in its quality with time, by including a sucrose-based polyether and/or an alkylamine- based polyether as the essential component(s)....

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Bibliographische Detailangaben
1. Verfasser:	IZUMI YOSHIHIDE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DERIVATIVES THEREOF MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY NUCLEIC ACIDS NUCLEOSIDES NUCLEOTIDES ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SUGARS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain the subject composition excellent in the initial defoaming effect and its sustainability, uniformly dispersible and less deteriorative in its quality with time, by including a sucrose-based polyether and/or an alkylamine- based polyether as the essential component(s). SOLUTION: This composition comprises, as the essential component(s), (A) a compound obtained by addition polymerization of a 3-4C alkylene oxide to sucrose (preferably, minutely powdered purified crystal sugar or granulated sugar) in the molar ratio of (29-46):1 and/or (B) a compound obtained by addition polymerization of a 2-3C alkylene oxide to an alkylamine having an average carbon atom number of 12-18 in the molar ratio of (4-8):1. It is preferable that the component A is obtained by subjecting sucrose, propylene oxide and 1,2- butylene oxide to addition polymerization in the molar ratio of 1:(26-46):(0-3). The compounding weight ratio of the component A to the component B is preferably (100:0)-(30:70). Thus, defoaming agent having excellent characteristics is provided.