Preparation of biuret polyisocyanates
    1.
    发明授权
    Preparation of biuret polyisocyanates 失效
    缩二脲多异氰酸酯的制备

    公开(公告)号:US4051165A

    公开(公告)日:1977-09-27

    申请号:US47134

    申请日:1970-06-17

    摘要: A method of preparing biuret polyisocyanates by reacting diisocyanates with up to about 0.4 mol per mol of diisocyanate of a monohydric tertiary alcohol in the presence of from about 0.001 to about 0.1 mol per mol of tertiary alcohol of a catalyst consisting of salts and salt mixtures of nitrogen containing bases and organic or inorganic acids at a temperature of between about 60.degree. and about 210.degree. C. The volume/time yield of biuret polyisocyanate according to this process is from 3 to 5 times greater than volume/time yields obtained with comparative known methods.

    摘要翻译: 一种制备缩二脲多异氰酸酯的方法,通过使二异氰酸酯与高达约0.4mol / mol的一元叔醇的二异氰酸酯在约0.001至约0.1mol / mol叔醇的催化剂的存在下反应,所述催化剂由盐和盐混合物 含氮碱和有机或无机酸的温度为约60℃至约210℃。根据该方法的缩二脲多异氰酸酯的体积/时间产率是通过比较已知的获得的体积/时间产率的3至5倍 方法。

    Substantially colorless organic polyisocyanates, processes for their
production and their use in the production of polyurethane plastics
    3.
    发明授权
    Substantially colorless organic polyisocyanates, processes for their production and their use in the production of polyurethane plastics 失效
    基本无色有机多异氰酸酯,其生产工艺及其在聚氨酯塑料生产中的应用

    公开(公告)号:US4639502A

    公开(公告)日:1987-01-27

    申请号:US730134

    申请日:1985-05-03

    摘要: The present invention relates to substantially colorless organic polyisocyanates, optionally in solution in an inert solvent, having a Hazen color index according to DIN 53 409 of at most 60 and a yellow value according to DIN 6167 of at most 3.0, characterized by a content of about 0.01 to 1 ppm (by weight), based on polyisocyanate, of an organic dye soluble in the polyisocyanate and having an absorption maximum of about 560 to 590 nm or a mixture of such dyes.The present invention also relates to two processes for preparing the substantially colorless organic polyisocyanates. In the first process, the organic dye is added to the prepared polyisocyanate while in the second process the organic dye is added to the starting materials used to prepare the polyisocyanate. Finally, the present invention is directed to the production of polyisocyanate polyaddition products from the substantially colorless organic polyisocyanates and isocyanate-reactive compounds.

    摘要翻译: 本发明涉及基本上无色的有机多异氰酸酯,任选在惰性溶剂中的溶液中,根据DIN 53 409的Hazen颜色指数最多为60,根据DIN 6167的黄色值至多为3.0,其特征在于含量 约0.01至1ppm(重量),基于多异氰酸酯,可溶于多异氰酸酯的有机染料并且具有约560至590nm的吸收最大值或这些染料的混合物。 本发明还涉及制备基本上无色的有机多异氰酸酯的两种方法。 在第一种方法中,将有机染料加入到制备的多异氰酸酯中,而在第二种方法中,将有机染料加入到用于制备多异氰酸酯的原料中。 最后,本发明涉及从基本上无色的有机多异氰酸酯和异氰酸酯反应性化合物制备多异氰酸酯加聚产物。

    Dialkoxy-phosphonyl-N-alkyl-formic acid amides
    4.
    发明授权
    Dialkoxy-phosphonyl-N-alkyl-formic acid amides 失效
    二烷氧基 - 膦酰基-N-烷基 - 甲酸酰胺

    公开(公告)号:US4400331A

    公开(公告)日:1983-08-23

    申请号:US342544

    申请日:1982-01-25

    摘要: The present invention relates to a process for the preparation of polyurethane foams capable of being flame laminated and high frequency welded, comprising reacting:(a) polyisocyanate,(b) a compound having a molecular weight of from 400 to 10,000 containing at least two isocyanate-reactive hydrogen atoms and(c) a dialkoxy-phosphonyl-N-alkyl-formic acid amide of the formula: ##STR1## wherein m represents an integer of from 1 to 3,n represents an integer of from 0 to 8,X represents halogen, hydrogen, C.sub.1 to C.sub.6 alkyl, -OR, or ##STR2## R represents C.sub.1 to C.sub.6 alkyl, R.sub.1 represents hydrogen, C.sub.1 to C.sub.10 alkyl, C.sub.1 to C.sub.10 alkylene, C.sub.6 to C.sub.10 aryl or C.sub.6 to C.sub.10 arylene, andR.sub.2 and R.sub.3, which may be the same or different, represent C.sub.1 to C.sub.10 alkyl in the presence of water and/or blowing agent.The present invention also relates to dialkoxy-phosphonyl-N-formic acid amides.

    摘要翻译: 本发明涉及一种制备能够进行火焰层压和高频焊接的聚氨酯泡沫体的方法,包括使(a)多异氰酸酯,(b)分子量为400至10,000的含有至少两种异氰酸酯的化合物 - 反应性氢原子和(c)下式的二烷氧基膦酰基-N-烷基 - 甲酸酰胺其中m表示1至3的整数,n表示0至8的整数,X表示 卤素,氢,C1至C6烷基,-OR或R表示C1至C6烷基,R1表示氢,C1至C10烷基,C1至C10亚烷基,C6至C10芳基或C6至C10亚芳基,R2和 R 3可以相同或不同,在水和/或发泡剂的存在下表示C1至C10烷基。 本发明还涉及二烷氧基 - 膦酰基-N-甲酸酰胺。

    Agrochemical agents and their use
    9.
    发明授权
    Agrochemical agents and their use 失效
    农药代理及其用途

    公开(公告)号:US4334905A

    公开(公告)日:1982-06-15

    申请号:US189261

    申请日:1980-09-22

    摘要: Azulmic acids, stabilized by condensation with carbonyl compounds, containing from 0.5 to 55 percent by weight of ionic groups of the formula ##STR1## in which R represents hydrogen, ammonium, one equivalent of a protonated or quaternized organic nitrogen base or of a sulphonium cation or one equivalent of a metal cation,and containing from 0.5 to 15 percent by weight of groups formed by decarboxylation reaction of the formula ##STR2## and acid addition salts and complex compounds of these stabilized azulmic acids, and also mixed products of these stablized azulmic acids with additives can be used as agrochemicals. The products are particularly useful as fertilizers and as soil improving agents.

    摘要翻译: 通过与羰基化合物缩合而稳定的唾液酸,其含有0.5至55重量%的下式的离子基团(F1),其中R表示氢,铵,1当量的质子化或季铵化的有机氮基,或 锍阳离子或一当量的金属阳离子,并且含有0.5至15重量%的由式(F2)的脱羧反应形成的基团和这些稳定的薁酸的酸加成盐和络合物,以及 这些稳定的唾液酸与添加剂的混合产物可用作农业化学品。 该产品特别适用于肥料和土壤改良剂。