Polymer polyols from partially reacted polyamines
    32.
    发明授权
    Polymer polyols from partially reacted polyamines 失效
    来自部分反应的多胺的聚合物多元醇

    公开(公告)号:US4523025A

    公开(公告)日:1985-06-11

    申请号:US544200

    申请日:1983-10-21

    摘要: A polymer polyol made by the reaction of a partially reacted polyamine with an organic polyisocyanate in a polyether polyol solvent of about 3,000 to 8,000 molecular weight is disclosed. Preferably, the polyisocyanate is reacted with a partially alkoxylated polyoxyalkylenediamine. This polymer polyol may be used in the manufacture of flexible polyurethane foams with improved properties. The polymer polyols are more stable than those made by other procedures.

    摘要翻译: 公开了通过部分反应的多胺与有机多异氰酸酯在约3,000至8,000分子量的聚醚多元醇溶剂中反应制备的聚合物多元醇。 优选地,多异氰酸酯与部分烷氧基化的聚氧化烯二胺反应。 该聚合物多元醇可用于制造具有改进性能的柔性聚氨酯泡沫体。 聚合物多元醇比通过其它方法制备的多元醇更稳定。

    Polyurethanes derived from novel novolak polyols
    33.
    发明授权
    Polyurethanes derived from novel novolak polyols 失效
    衍生自新型酚醛清漆多元醇的聚氨酯

    公开(公告)号:US4102828A

    公开(公告)日:1978-07-25

    申请号:US681005

    申请日:1976-04-28

    申请人: Howard P. Klein

    发明人: Howard P. Klein

    CPC分类号: C08G18/64 C08G18/546

    摘要: Covers a method of producing polyurethanes formed as the reaction product of polyisocyanates and an alkoxylated novolak. Said novolak is the condensation product of a monohydric phenol and a 1,3-dioxane falling within the following structural formula: ##STR1## where R is selected from the group consisting of phenyl, substituted phenyl and gem dialkyl, and R.sub.1 is selected from the group consisting of hydrogen, alkyl, phenyl, and substituted phenyl. Also covers polyurethanes derived therefrom, and particularly rigid polyurethane foams.

    摘要翻译: 包括生产作为多异氰酸酯和烷氧基化酚醛清漆的反应产物形成的聚氨酯的方法。 所述酚醛清漆是一元酚和1,3-二恶烷的缩合产物,其结构式如下:其中R选自苯基,取代的苯基和二烷基,R1选自 由氢,烷基,苯基和取代的苯基组成的基团。 还包括由其衍生的聚氨酯,特别是硬质聚氨酯泡沫。

    Procedure for the partial alkoxylation of polyoxyalkyleneamines
    40.
    发明授权
    Procedure for the partial alkoxylation of polyoxyalkyleneamines 失效
    聚氧亚烷基胺的部分烷氧基化方法

    公开(公告)号:US4465858A

    公开(公告)日:1984-08-14

    申请号:US515405

    申请日:1983-07-20

    摘要: A non-catalytic procedure for reacting polyoxyalkyleneamines with alkylene oxides in the presence of 5 to 15 wt. % water is described. With this inventive procedure the addition of the oxides may be done quickly and at the surprisingly low temperature of between 75.degree. and 85.degree. C. The proportion of tertiary amine in the resulting product is less than 90%, indicating partial alkoxylation. This technique is particularly suitable for propoxylation which is difficult to achieve by conventional means.

    摘要翻译: 一种用于使聚氧亚烷基胺与环氧烷反应的非催化方法,在5至15wt。 描述了%的水。 通过本发明方法,可以快速进行氧化物的添加,并且在75至85℃之间的惊人的低温下。所得产物中叔胺的比例小于90%,表明部分烷氧基化。 该技术特别适用于通过常规方法难以达到的丙氧基化。