Isocyanato-acylurethanes, a process for their preparation and their use
    5.
    发明授权
    Isocyanato-acylurethanes, a process for their preparation and their use 失效
    异氰酸酯 - 氨基甲酸酯,其制备方法及其用途

    公开(公告)号:US4921996A

    公开(公告)日:1990-05-01

    申请号:US227980

    申请日:1988-08-02

    摘要: The present invention relates to isocyanto-acylurethanes corresponding to Formula I ##STR1## wherein R has a valency of m+n and is a hydrocarbon group,R' is a hydrocarbon group andm and n may be identical or different, and each have a value of 1 or 2.The present invention also relates to a process for preparation of these isocyanato-acylurethanes which comprises reacting isocyanato-carboxylic acid chlorides with carbamic acid esters. Finally, the present invention is directed to the use of these isocyanato-acylurethanes as intermediate products for the production of thermally cross-linkable synthetic resins or synthetic resin precursors and also as intermediate products for the preparation of cross-linking agents for synthetic resins.

    摘要翻译: 本发明涉及对应于式I的异氰酸基 - 酰基氨基甲酸酯(I)其中R具有m + n的化合价并且是烃基,R'是烃基,m和n可以相同或不同,以及 各自具有1或2的值。本发明还涉及这些异氰酸酯基 - 氨基甲酸酯的制备方法,其包括使异氰酸根合羧酸氯化物与氨基甲酸酯反应。 最后,本发明涉及这些异氰酸酯基 - 氨基甲酸酯作为生产可热交联的合成树脂或合成树脂前体的中间产物以及用作制备用于合成树脂的交联剂的中间产品的用途。

    Laminated polarizers
    9.
    发明授权
    Laminated polarizers 失效
    层压偏振器

    公开(公告)号:US5049427A

    公开(公告)日:1991-09-17

    申请号:US446943

    申请日:1989-12-06

    摘要: Laminated polarizers are described comprising a polarizing core layer and adhesive layers on one or both sides, each of which can accept a transparent outer layer, the polarizer being a polymer product containing polyacetylene, whose matrix is a polymer having polar groups, and as adhesive layers, in addition to conventional adhesives, such as epoxy resins or acrylic polymers, thermoplastic polyurethane-polyureas are used in particular, having a predominantly linear molecular structure with urethane segments and urea segments bonded exclusively aliphatically or cycloaliphatically.

    摘要翻译: 描述了层压偏振器,其包括一个或两侧上的偏振芯层和粘合剂层,每个可以接受透明外层,偏振器是含有聚乙炔的聚合物产物,其聚合物具有极性基团,并且作为粘合剂层 除了常规粘合剂如环氧树脂或丙烯酸聚合物之外,特别使用热塑性聚氨酯 - 聚脲,其主要具有线性分子结构,其中氨基甲酸酯链段和尿素链段仅脂肪或烯烃键合。