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US5218008A Polyethers stabilized with 6-chromanol derivatives 失效
聚六氟乙烯稳定剂与6-氯丙醇衍生物

Polyethers stabilized with 6-chromanol derivatives
摘要:
6-chromanol derivatives are used as antioxidants in polyethers. These, particularly in conjunction with other antioxidants, provide excellent protection against oxidation at very low levels of use. They are particularly useful in polyethers for preparing polyurethane slabstock foam.
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