DISPERSION STABILIZER BASED ON AT LEAST TWO TYPES OF POLYOLS AND PREPARATION METHOD THEREFOR

Disclosed are a dispersion stabilizer of a polymer polyol and a preparation method therefor, the dispersion stabilizer being prepared by a reaction of: a first polyol having a hydroxyl value of 5-50 mgKOH/g and an ethylene oxide content of less than 20 wt%; a second polyol having a hydroxyl value of...

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Bibliographische Detailangaben
Hauptverfasser: KIM, Gi Jung, KIM, Seul Gi, SONG, Jae Yeong, PARK, Jin Woo
Format: Patent
Sprache:eng ; fre ; kor
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Zusammenfassung:Disclosed are a dispersion stabilizer of a polymer polyol and a preparation method therefor, the dispersion stabilizer being prepared by a reaction of: a first polyol having a hydroxyl value of 5-50 mgKOH/g and an ethylene oxide content of less than 20 wt%; a second polyol having a hydroxyl value of 50-100 mgKOH/g and an ethylene oxide content of 20 wt% or more; and a reactive unsaturated compound having at least one carbon-carbon double bond and at least two carbon-oxygen double bonds. L'invention concerne un stabilisant de dispersion d'un polyol polymère et son procédé de préparation, le stabilisant de dispersion étant préparé au moyen d'une réaction de : un premier polyol ayant une valeur hydroxyle de 5-50 mgKOH/g et une teneur en oxyde d'éthylène inférieure à 20 % en poids ; un second polyol ayant une valeur hydroxyle de 50-100 mgKOH/g et une teneur en oxyde d'éthylène supérieure ou égale à 20 % en poids ; et un composé insaturé réactif ayant au moins une double liaison carbone-carbone et au moins deux doubles liaisons carbone-oxygène. 수산기가가 5~50 mgKOH/g이고 산화에틸렌 함량이 20중량% 미만인 제1 폴리올; 수산기가가 50~100 mgKOH/g이고 산화에틸렌 함량이 20중량% 이상인 제2 폴리올; 및 하나 이상의 탄소-탄소 이중 결합과 둘 이상의 탄소-산소 이중 결합을 가지는 반응성 불포화 화합물;이 반응하여 제조된, 폴리머 폴리올 분산 안정제와 그 제조 방법이 개시된다.