Process for the preparation of stabilized polyamines, stabilized
polyamines with retarded reactivity and their use for polyurethane
production
    2.
    发明授权
    Process for the preparation of stabilized polyamines, stabilized polyamines with retarded reactivity and their use for polyurethane production 失效
    用于制备稳定的多胺,具有延迟反应性的稳定的多胺及其用于聚氨酯生产的方法

    公开(公告)号:US4663415A

    公开(公告)日:1987-05-05

    申请号:US759818

    申请日:1985-07-29

    摘要: This invention relates to a process for the production of solid polyamines stabilized by a polyadduct covering and showing retarded reactivity comprising reacting(1) one or more solid organic polyamines in particulate form, said polyamines containing at least two primary and/or secondary amino groups and having melting points above 50.degree. C., and(2) from 0.1 to 25 equivalent % of isocyanate per amine equivalent of a water insoluble, difunctional and/or higher functional polyisocyanate,said reaction being conducted at a temperature below the melting point of said solid polyamine, and being conducted in the presence of(3) a liquid medium selected from the group consisting of(a) organic compounds containing two or more hydroxy groups and having molecular weights of from 62 to 10,000,(b) plasticizers,(c) water, and(d) mixtures thereofto form a suspension of polyadduct-covered stabilized polyamines in the liquid medium.

    摘要翻译: 本发明涉及用于生产由多加成分稳定的固体多胺的方法,其覆盖并显示延迟反应性,包括使(1)一种或多种颗粒形式的固体有机多胺,所述多胺含有至少两个伯和/或仲氨基和 具有高于50℃的熔点,和(2)0.1至25当量异氰酸酯/胺当量的水不溶性,双官能和/或更高官能的多异氰酸酯,所述反应在低于所述 固体多胺,并且在(3)选自(a)含有两个或多个羟基并且分子量为62至10,000的有机化合物的组分的存在下进行,(b)增塑剂,(c )水,和(d)它们的混合物以在液体介质中形成多加合物覆盖的稳定化多胺的悬浮液。

    Process for the production of polyurea-elastomers and corresponding
elastomers having an idealized segment structure
    5.
    发明授权
    Process for the production of polyurea-elastomers and corresponding elastomers having an idealized segment structure 失效
    制备具有理想化段段结构的聚脲弹性体和相应的弹性体的方法

    公开(公告)号:US4569982A

    公开(公告)日:1986-02-11

    申请号:US694572

    申请日:1985-01-24

    摘要: According to the present invention, relatively high molecular weight aliphatic and/or aromatic polyamines having molecular weights of from 400 to 8,000 (preferably from 600 to 4,000) are mixed with substantially equivalent quantities of low molecular weight, solid, finely-divided diisocyanates having a melting point of >40.degree. C., (preferably >80.degree. C.), such as phenylene diisocyanate, naphth lene-1,5-diisocyanate, dimeric toluylene-2,4-diisocyanate or the urea diisocyanate of toluylene-2,4-diisocyanate. This mixture, having a pot life of at least several minutes, is subsequently heated to a relatively high temperature, such as from 80.degree. to 200.degree. C.The products obtained have excellent elastic properties over a broad temperature range. They have an exceptionally flat modulus of elasticity curve (G') in the torsional vibration test. The hard and soft segments are markedly segregated and are thus not substantially disturbed by reciprocal interaction causing "softening".

    摘要翻译: 根据本发明,分子量为400至8,000(优选600至4,000)的相对高分子量的脂族和/或芳族多胺与基本上等量的低分子量固体,细分二异氰酸酯混合,其具有 熔点> 40℃(优选> 80℃),如亚苯基二异氰酸酯,萘-1,5-二异氰酸酯,二聚甲苯-2,4-二异氰酸酯或甲苯-2,4 二异氰酸酯。 随后将具有至少几分钟的适用期的混合物加热到相对较高的温度,例如80℃至200℃。所得产物在宽的温度范围内具有优异的弹性。 在扭转振动试验中,它们具有非常平坦的弹性模量曲线(G')。 硬段和软段显着分离,因此基本上不会受到引起“软化”的相互作用的相互干扰。

    Heat curable, one-component polyurethane reactive compositions
    8.
    发明授权
    Heat curable, one-component polyurethane reactive compositions 失效
    可热固化的单组分聚氨酯反应组合物

    公开(公告)号:US5574123A

    公开(公告)日:1996-11-12

    申请号:US396182

    申请日:1995-02-24

    摘要: The present invention relates to a heat curable, one-component polyurethane reactive compositions containingA) surface-modified, finely divided polyisocyanates in which 0.1 to 25 equivalent percent, based on the total number of NCO groups, of the NCO groups are deactivated andB) a mixture of relatively high molecular weight compounds having isocyanate-reactive groups containing1) 5 to 40 wt. %, based on the weight of component B), of one or more aliphatic polyether polyamines and2) 60 to 95 wt. %, based on the weight of component B), of a polyol mixture containingi) 10 to 60 wt. %, based on the weight of component B2), of at least one polyester polyol andii) 40 to 90 wt. %, based on the weight of component B2), of at least one polyether polyol with predominantly primary hydroxyl groups.The present invention also relates to use of the heat curable, one-component polyurethane reactive compositions to prepare coatings, adhesives, anti-drumming products and sealants, especially seam sealants.

    摘要翻译: 本发明涉及一种可热固化的单组分聚氨酯反应性组合物,其包含A)表面改性的细碎多异氰酸酯,其中NCO基团的NCO基团的总数为0.1至25当量百分数为失活,B为 )具有异氰酸酯反应性基团的相对高分子量化合物的混合物,其含有1〜5重量% 基于组分B)的重量),一种或多种脂族聚醚多胺,和2)60至95重量% 基于组分B)的重量,多元醇混合物含有i)10至60wt。 %,基于组分B2的重量),至少一种聚酯多元醇,和ii)40至90重量% 至少一种主要为伯羟基的聚醚多元醇,基于组分B2的重量%)。 本发明还涉及可热固化的单组分聚氨酯反应性组合物用于制备涂料,粘合剂,抗打击产品和密封剂,特别是缝隙密封剂的用途。

    Process for the preparation of highly elastic plastics
    9.
    发明授权
    Process for the preparation of highly elastic plastics 失效
    制备高弹性塑料的方法

    公开(公告)号:US5159046A

    公开(公告)日:1992-10-27

    申请号:US543649

    申请日:1990-06-26

    摘要: The present invention relates to a process for the preparation of a modified 1,5-naphthylene diisocyanate containing urea and biuret groups comprising reacting(a) 1,5-naphthylene diisocyanate in molten form with(b) a mixture comprising about 0.02 to about 0.5 mole of water per mole of 1,5-naphthylene diisocyanate and about 1 to about 10 parts for each part of water of an organic solvent.The present invention further relates to a process for the preparation of elastomeric moldings comprising reacting by the one-shot or prepolymer process at an isocyanate index of 70 to 130 a modified 1,5-naphthylene diisocyanate containing urea and biuret groups with compounds containing at least two isocyanate-reactive groups and having a molecular weight in the range from about 500 to about 10,000 and, optionally, organic compounds containing isocyanate-reactive groups and having a molecular weight in the range from 60 to 499.

    摘要翻译: 本发明涉及一种制备含脲和缩二脲基团的改性的1,5-亚萘基二异氰酸酯的方法,包括使(a)熔融形式的1,5-亚萘基二异氰酸酯与(b)约0.02至约0.5的混合物 摩尔水/摩尔1,5-亚萘基二异氰酸酯和约1至约10份的每份有机溶剂的水。 本发明还涉及一种制备弹性体模制品的方法,其包括通过一步或预聚物方法在异氰酸酯指数为70至130的情况下使含有脲和缩二脲基团的改性的1,5-亚萘基二异氰酸酯与至少含有化合物 两个异氰酸酯反应性基团,分子量在约500至约10,000的范围内,以及任选的含有异氰酸酯反应性基团并且分子量在60至499范围内的有机化合物。