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    • 2. 发明授权
    • Aromatic diamines
    • 芳香二胺
    • US4007239A
    • 1977-02-08
    • US620088
    • 1975-10-06
    • Johannes BlahakErwin MullerHelmut Kleimann
    • Johannes BlahakErwin MullerHelmut Kleimann
    • C08G18/10C08G18/32C08G18/38C07C153/07
    • C08G18/3868C08G18/10C08G18/3243C08G18/3855
    • Novel aromatic diamines having the general formula ##STR1## WHEREIN N IS AN INTEGER OF FROM 2 TO 8, X is sulfur or oxygen, and R is an n-valent hydrocarbon radical which may be interrupted by O or S atoms and which is obtained by removing OH or SH groups from a polyol or polythiol having a molecular weight of less than 600, are prepared by reacting a compound having the formula (HX).sub.n R where X, n and R are as defined above with about n-equivalents of an isatoic acid anhydride in the presence of a strong base. The aromatic diamines of the invention are particularly useful as the active hydrogen containing component for reaction with polyisocyanates in the preparation of synthetic resins by the isocyanate-polyaddition process.
    • 具有通式为:其中N为2至8的整数的新型芳族二胺,X为硫或氧,R为可被O或S原子间隔的n价烃基,其由 通过使具有式(HX)nR的化合物,其中X,n和R如上所定义的化合物与大约n当量的等离子体的化合物反应,从分子量小于600的多元醇或多硫醇中除去OH或SH基团 酸酐在强碱存在下进行。 本发明的芳族二胺在通过异氰酸酯加聚方法制备合成树脂时,特别适用于与多异氰酸酯反应的含活性氢成分。
    • 4. 发明授权
    • Process for the production of foams
    • 生产泡沫的过程
    • US4070310A
    • 1978-01-24
    • US691057
    • 1976-05-28
    • Heinz-Georg SchneiderHelmut KleimannBruno Luckas
    • Heinz-Georg SchneiderHelmut KleimannBruno Luckas
    • C08G18/00C08G18/16C08J9/08C08J9/34C08G18/14
    • C08J9/34C08J9/08C08J2375/04Y10S521/902
    • This invention relates to a process for the production of polyurethane foams in closed molds using mixtures of organic polyisocyanates with certain compounds which liberate carbon dioxide under the catalytic influence of basic compounds. In this process a mixture of polyisocyanates and compounds which liberate carbon dioxide under the catalytic influence of basic compounds is reacted with organic compounds containing hydrogen atoms which are reactive with isocyanate groups, which organic compounds are mixed with basic compounds and/or have basic compounds chemically built into them. The process is suitable for the production of any polyurethane foams in a closed mold, but is preferably applied to the production of semi-hard and particularly of hard polyurethane foams having a dense outer skin.
    • 本发明涉及一种在封闭模具中使用有机多异氰酸酯与某些在碱性化合物的催化作用下释放二氧化碳的化合物的混合物生产聚氨酯泡沫体的方法。 在该方法中,在碱性化合物的催化作用下,释放二氧化碳的多异氰酸酯和化合物的混合物与含有与异氰酸酯基团反应的氢原子的有机化合物反应,该有机化合物与碱性化合物混合和/或化学上具有碱性化合物 内置于其中 该方法适用于在封闭模具中生产任何聚氨酯泡沫塑料,但优选用于生产具有致密外皮的硬硬聚氨酯泡沫塑料。