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    • 8. 发明授权
    • Process for the preparation of optionally cellular polyurethane polyurea
molded parts
    • 制备任选细胞聚氨酯聚脲模制件的方法
    • US4595705A
    • 1986-06-17
    • US700758
    • 1985-02-13
    • Frank WernerMatthias MarxPeter HornHans U. Schmidt
    • Frank WernerMatthias MarxPeter HornHans U. Schmidt
    • C08G18/32C08G18/40C08G18/65C08G18/14C08G18/30
    • C08G18/6529C08G18/3221C08G18/4009C08G18/4018C08G2101/0033C08G2120/00Y10T428/249989
    • The invention relates to a one-shot process for the preparation of cellular or noncellular polyurethane polyurea parts having a modulus of flexural elasticity greater than 600 N/mm.sup.2 and densities of from 0.8 to 1.2 g/cm.sup.3 using the reaction injection molding technique, by reacting organic polyisocyanates, a polyol component, aromatic diamines, additional chain extenders and/or cross-linking agents in the presence of catalysts and optionally blowing agents, auxiliaries and/or additives, wherein the polyol component is a mixture containing(i) from 95 to 60 percent by weight of at least one compound selected from the group consisting of polyols, polyether polyamines, polyesteramides, and their mixtures having functionalities of from 2 to 6 and a molecular weight of from 1000 to 8000 and(ii) from 5 to 40 percent by weight of a least one aromatic and/or aromatic-aliphatic polyester polyol having a functionality of from 2 to 3 and a molecular weight of from 254 to 700, wherein the percents by weight are based on the total weight of the polyol component.
    • 本发明涉及使用反应注射成型技术制备具有大于600N / mm2的弯曲弹性模量和0.8至1.2g / cm 3的密度的细胞或非细胞聚氨酯聚脲部件的一步法,通过使 有机多异氰酸酯,多元醇组分,芳族二胺,另外的增链剂和/或交联剂,在催化剂和任选的发泡剂,助剂和/或添加剂的存在下,其中多元醇组分是含有(i)95至 60重量%的至少一种选自多元醇,聚醚多胺,聚酯酰胺及其混合物的至少一种化合物,其官能度为2至6,分子量为1000至8000,(ii)5至40% 的至少一种官能度为2至3且分子量为254至700的至少一种芳族和/或芳族 - 脂族聚酯多元醇,其中百分比 基于多元醇组分的总重量。