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126 条记录 (耗时 0.019 秒)

    Process for the production of polyurethane elastomers and foams
    5.
    发明授权
    Process for the production of polyurethane elastomers and foams 失效
    生产聚氨酯弹性体和泡沫的方法

    公开(公告)号：US4133943A

    公开(公告)日：1979-01-09

    申请号：US899431

    申请日：1978-04-24

    申请人： Johannes Blahak ,  Kuno Wagner ,  Jan Mazanek ,  Peter Haas

    发明人： Johannes Blahak ,  Kuno Wagner ,  Jan Mazanek ,  Peter Haas

    IPC分类号： C08G18/08 ,  C08G18/10 ,  C08G18/38 ,  C08G18/14 ,  C08G18/32

    CPC分类号： C08G18/3855 ,  C08G18/0819 ,  C08G18/10 ,  C08G18/3821 ,  C08G2101/0008 ,  C08G2101/0083

    摘要： The instant invention relates to an improved process for the production of cellular or non-cellular polyurethane urea elastomers, in which diamines which contain ester groups are used as chain lengthening agents. A characteristic feature of the process according to the invention is the use of salts of aromatic diaminocarboxylic or sulphonic acids as a portion of the chain lengthening component. Elastomers produced by this process are distinguished by their improved mechanical properties, in particular their increased tensile strength and tear propagation resistance as well as their reduced permanent elongation.

    摘要翻译： 本发明涉及用于生产细胞或非细胞聚氨酯脲弹性体的改进方法，其中含有酯基团的二胺用作链延长剂。 根据本发明的方法的特征在于使用芳族二氨基羧酸或磺酸的盐作为链增长组分的一部分。 通过该方法生产的弹性体的特征在于它们改进的机械性能，特别是它们增加的拉伸强度和抗撕裂蔓延性以及它们降低的永久伸长率。

    The production of polyurethane resins and laminates
    9.
    发明授权
    The production of polyurethane resins and laminates 失效
    生产聚氨酯树脂和层压板

    公开(公告)号：US4248930A

    公开(公告)日：1981-02-03

    申请号：US107310

    申请日：1979-12-26

    申请人： Peter Haas ,  Johannes Blahak ,  Werner Mormann ,  Manfred Kapps

    发明人： Peter Haas ,  Johannes Blahak ,  Werner Mormann ,  Manfred Kapps

    IPC分类号： C08G18/00 ,  C08G18/18 ,  C08G18/28 ,  C08G18/32 ,  C08G18/14 ,  B32B27/40 ,  C08K5/20

    CPC分类号： C08G18/1808 ,  C08G18/1825 ,  C08G18/2865 ,  C08G18/3228 ,  Y10T428/249992 ,  Y10T428/3158

    摘要： A process is disclosed for producing polyurethane resins using novel catalysts selected from the group consisting of a process for the production of cellular or non-cellular polyurethane resins comprising reacting:(a) polyisocyanates; with(b) compounds having at least 2 isocyanate reactive hydrogen atoms; in the presence of(c) tertiary amines as catalysts; optionally with the addition of(d) blowing agents, stabilizers and other known additives; characterized in that the substances used as component (c) comprise compounds selected from the group consisting of ##STR1## and mixtures thereof in which formulae: the symbols R may be the same or different and represent straight or branched-chain alkyl groups having from 1 to 4 carbon atoms;the symbols n may be the same or different and represent 2 or 3;the symbols m may be the same or different and represent 2 or 3; andk represents an integer of from 1 to 5.The process may also be carried out in the presence of other tertiary amine catalysts, particularly compounds containing one tertiary nitrogen atom and at least one amide group.The novel catalysts of the invention function as age-resistors and light-protective agents.

    摘要翻译： 公开了一种使用选自由生产细胞或非细胞聚氨酯树脂的方法组成的组的新型催化剂制备聚氨酯树脂的方法，其包括：（a）多异氰酸酯; 与（b）具有至少2个异氰酸酯反应性氢原子的化合物; 在（c）叔胺作为催化剂的存在下; 任选地加入（d）发泡剂，稳定剂和其它已知的添加剂; 其特征在于用作组分（c）的物质包括选自以下的化合物：其中式：（1） 符号R可以相同或不同，表示具有1至4个碳原子的直链或支链烷基; 符号n可以相同或不同，表示2或3; 符号m可以相同或不同，表示2或3; 并且k表示1至5的整数。该方法也可以在其它叔胺催化剂，特别是含有一个叔氮原子和至少一个酰胺基团的化合物的存在下进行。 本发明的新型催化剂用作耐老化剂和光保护剂。