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    Process for the production of microcellular elastomeric moldings and the resultant products
    1.
    发明授权
    Process for the production of microcellular elastomeric moldings and the resultant products 失效
    用于生产微孔弹性体模制品和所得产品的方法

    公开(公告)号：US4288564A

    公开(公告)日：1981-09-08

    申请号：US52877

    申请日：1979-06-28

    申请人： Steven M. Conover ,  Robert M. Loring ,  William A. Ludwico ,  John W. Arnold ,  George Ferber

    发明人： Steven M. Conover ,  Robert M. Loring ,  William A. Ludwico ,  John W. Arnold ,  George Ferber

    IPC分类号： B29C44/34 ,  B29C67/24 ,  C08G18/08 ,  C08G18/65 ,  C08K3/00 ,  B29D27/00

    CPC分类号： B29C44/348 ,  B29C67/246 ,  C08G18/08 ,  C08G18/6529 ,  C08K3/0008 ,  B29K2075/00 ,  B29K2105/16 ,  C08G2101/0066 ,  C08G2120/00 ,  Y10S264/05 ,  Y10S264/13 ,  Y10S264/83

    摘要： The instant invention is directed to a process for the production of microcellular elastomeric moldings comprising:(A) introducing a reaction mixture into a closed mold, said reaction mixture comprising:(i) an organic polyisocyanate,(ii) a hydroxyl group containing compound having a molecular weight of from 1800 to 12,000,(iii) a catalyst for the reaction between hydroxyl groups and isocyanate groups,(iv) an active aromatic diamine having at least one alkyl substituent in the orthoposition to a first amino group and two alkyl substituents in ortho-position to a second group, and(v) air and/or nitrogen dissolved under pressure in any one or more of Components (i), (ii), (iii) or (iv),(B) allowing said reaction mixture to react in said mold and(C) removing the resultant product from said mold, the improvement wherein in any of Components (i), (ii), (iii) or (iv) which does contain said air and/or nitrogen dissolved therein there is included an inorganic, finely divided, nitrogen adsorbing agent in an amount sufficient to accelerate the transition of the air and/or nitrogen from the dissolved state to the dispersed state upon release of the pressure (i.e., as the liquid reacting mixture flows into the mold). It is this dispersed state which allows for adequate blowing during the process.

    摘要翻译： 本发明涉及一种用于生产微孔弹性体模制品的方法，其包括：（A）将反应混合物引入封闭的模具中，所述反应混合物包含：（i）有机多异氰酸酯，（ii）含羟基的化合物，其具有 分子量为1800至12,000，（iii）用于羟基和异氰酸酯基团之间的反应的催化剂，（iv）活性芳族二胺，其在至少一个与第一个氨基取代的烷基取代基和两个烷基取代基 （v）在组分（i），（ii），（iii）或（iv），（B）中的任何一种或多种中压力溶解的空气和/或氮气，允许所述反应混合物 在所述模具中反应和（C）从所述模具中除去所得产物的改进，其中在其中含有溶解有所述空气和/或氮的组分（i），（ii），（iii）或（iv） 包括无机，细分的氮气 吸附剂的量足以在释放压力（即，当液体反应混合物流入模具中）时将空气和/或氮从溶解状态转变为分散状态。 这是分散状态，允许在该过程中充分吹制。