Unsaturated polyetherester resins, and processes for making them, are described which are useful for making curable thermoset resin compositions, intermediates for curable thermoset resin compositions, fiber-reinforced polymer composites, intermediates for making skin laminates for gel coated fiber-reinforced composites and gel coated polymer laminates. The unsaturated polyetherester resin is obtainable by reacting at least one acid-terminated unsaturated polyetherester resin with at least one aromatic polyol having at least one nonprimary hydroxy group to produce an unsaturated polyetherester resin at least partially end-capped with an aromatic polyol. The described processes, compositions, methods and uses improve the chemical and/or water resistance of resin compositions, particularly composite materials having a gel coat. That improvement has special significance in outdoor and marine applications, bathtubs and shower stalls and environments exposed to chemicals such as industrial and commercial applications.
描述了不饱和聚醚酯
树脂及其制造工艺,它们可用于制造可固化热固性
树脂组合物、可固化热固性
树脂组合物的中间体、纤维增强聚合物复合材料、用于制造凝胶涂层纤维增强复合材料的表皮层压板和凝胶涂层聚合物层压板的中间体。不饱和
聚醚醚酮树脂可通过将至少一种酸端不饱和
聚醚醚酮树脂与至少一种具有至少一个非主羟基的芳香族多元醇反应,生成至少部分以芳香族多元醇封端的不饱和
聚醚醚酮树脂而获得。所述工艺、组合物、方法和用途可提高
树脂组合物的耐
化学性和/或耐
水性,尤其是具有胶衣的复合材料。这种改进对于户外和海洋应用、浴缸和淋浴间以及接触
化学品的环境(如工业和商业应用)具有特殊意义。