Preparation of cellular polyurethanes
    3.
    发明授权
    Preparation of cellular polyurethanes 失效
    细胞聚氨酯的制备

    公开(公告)号:US5578653A

    公开(公告)日:1996-11-26

    申请号:US542249

    申请日:1995-10-12

    IPC分类号: C08J9/14 C08G18/00

    CPC分类号: C08J9/142 C08J2375/04

    摘要: A process for the production of cellular polyurethanes by reactinga) at least one organic and/or modified organic polyisocyanate,b) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, if desiredc) low-molecular-weight chain extenders and/or crosslinking agents,in the presence ofd) blowing agents,e) catalysts, and, if desired,f) auxiliaries and/or additives,wherein the blowing agent d) is at least one acetal.

    摘要翻译: 通过使a)至少一种有机和/或改性的有机多异氰酸酯,b)至少一种含有至少两个反应性氢原子的相对高分子量的化合物,如果需要的话,生产细胞聚氨酯的方法,c)低分子量 重量增链剂和/或交联剂,在d)发泡剂,e)催化剂的存在下,以及如果需要,f)助剂和/或添加剂,其中发泡剂d)为至少一种缩醛。

    Preparation of a homogeneous, demixing-stable polyol component
    5.
    发明授权
    Preparation of a homogeneous, demixing-stable polyol component 失效
    制备均匀的,分层稳定的多元醇组分

    公开(公告)号:US6093342A

    公开(公告)日:2000-07-25

    申请号:US24786

    申请日:1998-02-17

    IPC分类号: C08G18/40 C08G18/48 C09K3/00

    摘要: A homogeneous, demixing-stable polyol component comprising at least two relatively high molecular weight compounds containing at least two reactive hydrogen atoms and, if desired, low molecular weight chain extenders and/or crosslinkers and also, if desired, blowing agents, catalysts and further auxiliaries and/or additives is prepared by adding at least one amine and at least one organic and/or modified organic isocyanate to this component.This polyol component is useful for producing polyurethanes, in particular compact and foamed polyurethanes.

    摘要翻译: 均匀的分层稳定的多元醇组分,其包含至少两种含有至少两个反应性氢原子的相对高分子量的化合物,如果需要的话,低分子量增链剂和/或交联剂,以及如果需要,发泡剂,催化剂和其它 通过向该组分中加入至少一种胺和至少一种有机和/或改性的有机异氰酸酯来制备助剂和/或添加剂。 该多元醇组分可用于生产聚氨酯,特别是紧凑和发泡的聚氨酯。

    Preparation of a homogeneous polyol component which is stable to
separation
    8.
    发明授权
    Preparation of a homogeneous polyol component which is stable to separation 失效
    制备分离稳定的均相多元醇组分

    公开(公告)号:US6063308A

    公开(公告)日:2000-05-16

    申请号:US24787

    申请日:1998-02-17

    IPC分类号: C08G18/66 C09K3/00

    CPC分类号: C08G18/66 C08G2130/00

    摘要: A process for preparing a homogeneous polyol component which is stable to separation and consists of at least one compound of relatively high molecular weight having at least two reactive hydrogen atoms and low-molecular-weight chain extenders and/or crosslinkers and, if desired, of blowing agents, catalysts and other auxiliaries and/or additives comprises the addition to this component of at least one amine and at least one organic and/or modified organic isocyanate; the invention also provides the corresponding polyol component which is stable to separation.The use of this polyol component for preparing PUR, in particular compact or foamed PUR, is also described.

    摘要翻译: 制备均匀多元醇组分的方法,其对分离稳定并由至少一种具有至少两个反应性氢原子的低分子量增链剂和/或交联剂的相对高分子量的化合物组成,并且如果需要, 发泡剂,催化剂和其它助剂和/或添加剂包括向该组分加入至少一种胺和至少一种有机和/或改性的有机异氰酸酯; 本发明还提供了对分离稳定的相应的多元醇组分。 还描述了这种多元醇组分用于制备PUR,特别是致密或泡沫PUR的用途。