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Raw alveolar has links carbodiimides and isocyanurates modified by the polymers of the type poly (furfuryl alcohol)
Raw alveolar has links carbodiimides and isocyanurates modified by the polymers of the type poly (furfuryl alcohol)
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机译:未加工的肺泡具有经聚(糠醇)类型的聚合物改性的碳二亚胺和异氰脲酸酯
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摘要
Rigid cellular foams are prepared by catalytically condensing an organic polyisocyanate in the presence of (a) a carbodiimide-promoting catalyst, (b) a trimerization catalyst, and (c) a polyfurfuryl alcohol polymer. The resulting foam compositions are characterized by carbodiimide and isocyanurate linkages and exhibit improved friability and flame retardancy.
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