Polyisocyanurate composition

聚异氰脲酸酯组合物

Abstract

Polyisocyanurate foam composition, articles comprising the composition and a method of making the composition are described. The polyisocyanurate foam composition comprises the reaction product of a polyisocyanate compound; and a first polyester polyol comprising the residue of orthophthalic acid; a second polyester polyol comprising the residue of terephthalic acid; at least one polyether polyol having a functionality of at least 3 and a hydroxyl number greater than 200; and a physical blowing agent, wherein the isocyanate index is greater than 250.
本发明描述了聚异氰脲酸酯泡沫体组合物,包含该组合物的制品以及制备该组合物的方法。聚异氰脲酸酯泡沫体组合物包含以下物质的反应产物:多异氰酸酯化合物;包含邻苯二甲酸的剩余物的第一聚酯多元醇;包含对苯二甲酸的剩余物的第二聚酯多元醇;官能度为至少3和羟值大于200的至少一种聚醚多元醇;和物理发泡剂,其中异氰酸酯指数大于250。

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