Process for the in situ production of urea group-containing isocyanates
in polyols, dispersions or solutions resulting therefrom and use thereof
    13.
    发明授权
    Process for the in situ production of urea group-containing isocyanates in polyols, dispersions or solutions resulting therefrom and use thereof 失效
    用于在其中得到的多元醇,分散体或溶液中的含脲基的异氰酸酯的原位生产方法及其用途

    公开(公告)号:US4766239A

    公开(公告)日:1988-08-23

    申请号:US860938

    申请日:1986-05-08

    CPC分类号: C08G18/7825 C08G18/8045

    摘要: The invention relates to a process for the in situ production of dispersions or solutions of urea group-containing aromatic isocyanates by the low temperature reaction of aromatic diisocyanates and/or polyisocyanates (the NCO groups of which preferably exhibit different reactivities) with from 0.15 to 0.4 mols of water per NCO equivalent in relatively high molecular weight polyols and in the presence of catalysts accelerating the NCO/water reaction. Such catalysts are preferably selected from peralkylaminoalkyl ethers, peralkylamino-polyalkylene ethers and/or peralkyl-polyalkylene-polyamines. The present invention also relates to the resulting metastable solutions or dispersions and to the use thereof, optionally with the further addition of relatively high and low molecular weight compounds having hydroxyl, amino or hydrazide groups and with the optional addition of other polyisocyanates in polyurethane-forming ratios for the production of polyurethanes.

    摘要翻译: 本发明涉及通过芳族二异氰酸酯和/或多异氰酸酯(其优选表现出不同的反应性的NCO基团)的低温反应原位制备含脲基的芳族异氰酸酯的分散体或溶液的方法,其中0.15至0.4 在相对高分子量的多元醇中和在加速NCO /水反应的催化剂存在下,每NCO当量的水摩尔数。 这样的催化剂优选选自全烷基氨基烷基醚,全烷基氨基 - 聚亚烷基醚和/或全烷基 - 聚亚烷基 - 多胺。 本发明还涉及得到的亚稳溶液或分散体及其用途,任选地还可加入具有羟基,氨基或酰肼基团的相对高分子量和低分子量的化合物,并且任选地在聚氨酯形成中加入其它多异氰酸酯 生产聚氨酯的比例。

    Process for the preparation of stabilized polyamines, stabilized
polyamines with retarded reactivity and their use for polyurethane
production
    15.
    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。

    Storage stable compositions based on polyvinyl chloride plastisols and
stabilized isocyanates
    16.
    发明授权
    Storage stable compositions based on polyvinyl chloride plastisols and stabilized isocyanates 失效
    基于聚氯乙烯增塑溶胶和稳定的异氰酸酯的储存稳定组合物

    公开(公告)号:US4623686A

    公开(公告)日:1986-11-18

    申请号:US694562

    申请日:1985-01-24

    摘要: The invention relates to novel compositions for coating purposes comprising(A) polyvinyl plastisols,(B) surface modified, finely divided, stabilized polyisocyanates with retarded reactivity, in which 0.1 to 25 equivalents-% of the isocyanate groups of the unstabilized polyisocyanate have been deactivated on the surface, preferably by a reaction with polyamines, hydrazine, alkylhydrazines, polyhydrazide compounds and/or selected amidine and/or guanidine compounds; and(C) plasticizers and/or lightly branched, relatively high molecular weight polyhydroxyl compounds having melting points below 60.degree. C. and compatible with PVC plastisol.The invention also relates to the use of these storage stable but heat curable mixtures as primers for PVC coatings on plastics, foils, textile sheet products or filaments and as primer coats for flocking.

    摘要翻译: 本发明涉及用于涂覆目的的新型组合物,其包含(A)聚乙烯基增塑溶胶,(B)具有延迟反应性的表面改性,细碎,稳定的多异氰酸酯,其中未稳定的多异氰酸酯的异氰酸酯基团的0.1至25当量已被去活化 表面上优选通过与多胺,肼,烷基肼,聚酰肼化合物和/或选择的脒和/或胍化合物的反应; 和(C)具有熔点低于60℃并与PVC增塑溶胶相容的增塑剂和/或轻支化的相对高分子量的多羟基化合物。 本发明还涉及这些储存稳定但可热固化的混合物作为塑料,箔,纺织品产品或长丝上的PVC涂料的底漆以及用于植绒的底漆涂层的用途。

    Process for the preparation of polyurethane elastomers
    17.
    发明授权
    Process for the preparation of polyurethane elastomers 失效
    制备聚氨酯弹性体的方法

    公开(公告)号:US4587275A

    公开(公告)日:1986-05-06

    申请号:US429707

    申请日:1982-09-30

    CPC分类号: C08G18/3861 C08G18/10

    摘要: Polyurethane urea elastomers are produced by reacting polyisocyanates with compounds containing at least two isocyanate reactive hydrogen atoms having a molecular weight of 400 to 10,000 and mononuclear or dinuclear aromatic diamines. The aromatic diamines must have at least one sulfonamide group as a substituent on at least one of their aromatic rings. Known chain lengthening agents, activators, blowing agents, auxiliary agents and additives may also be included in the reaction mixture.Polyurethane elastomers produced by this process have excellent mechanical properties. In particular, such elastomers are soft yet have high tear propagation resistance.

    摘要翻译: 聚氨酯脲弹性体是通过使多异氰酸酯与分子量为400至10,000的至少两个异氰酸酯反应性氢原子和单核或双核芳族二胺的化合物反应来制备的。 芳族二胺必须在至少一个它们的芳环上具有至少一个磺酰胺基作为取代基。 已知的增链剂,活化剂,发泡剂,辅助剂和添加剂也可以包括在反应混合物中。 通过该方法生产的聚氨酯弹性体具有优异的机械性能。 特别地,这种弹性体是柔软的但具有高的抗撕裂传播性。

    Heat curable, one-component polyurethane reactive compositions
    18.
    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
    19.
    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。