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    • 4. 发明授权
    • Cycloaliphatic polyester polyols from thermoplastic polyesters
    • 来自热塑性聚酯的脂环族聚酯多元醇
    • US09522976B2
    • 2016-12-20
    • US15083491
    • 2016-03-29
    • RESINATE MATERIALS GROUP, INC.
    • Rick TaborEric David VrabelMatthew Beatty
    • C08G18/42C08G63/91C09D175/06
    • C08G63/916C08G18/242C08G18/246C08G18/34C08G18/4202C08G18/423C08G18/4233C08G18/4238C08G18/722C08G18/73C08G18/755C09D175/06
    • Cycloaliphatic polyester polyols and processes for making them from thermoplastic polyesters are disclosed. One process comprises heating a thermoplastic polyester with a glycol to give a digested intermediate and hydrogenating aromatic rings in the digested intermediate to produce the cycloaliphatic polyester polyol. Optionally, the digested intermediate is reacted with a hydrophobe to give a modified polyol prior to hydrogenation, and the modified polyol is hydrogenated to give the cycloaliphatic polyester polyol. The high-recycle-content cycloaliphatic polyester polyols have desirable attributes for formulating polyurethane dispersions, two-component polyurethane coatings, mono- or poly(meth)acrylates, polyisocyanurates, flexible and rigid foams, coatings, adhesives, sealants, and elastomers, and they provide a sustainable alternative to petrochemical-based polyols.
    • 公开了环脂族聚酯多元醇及其由热塑性聚酯制备它们的方法。 一种方法包括用二醇加热热塑性聚酯以在消化的中间体中产生消化的中间体和氢化芳环以制备脂环族聚酯多元醇。 任选地,将消化的中间体与疏水物反应以在氢化之前得到改性的多元醇,并将改性的多元醇氢化得到环脂族聚酯多元醇。 高回收含量的脂环族聚酯多元醇具有用于配制聚氨酯分散体,双组分聚氨酯涂料,单或多(甲基)丙烯酸酯,聚异氰脲酸酯,柔性和刚性泡沫,涂料,粘合剂,密封剂和弹性体的所需属性,并且它们 为石化多元醇提供可持续的替代方案。