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    • 6. 发明授权
    • Polyisocyanates containing isocyanurate groups and prepared by
trimerizing alkyl-substituted cycloaliphatic diisocyanates
    • 含有异氰脲酸酯基并通过三烷基取代的环脂族二异氰酸酯制备的多异氰酸酯
    • US5837796A
    • 1998-11-17
    • US883477
    • 1997-06-25
    • Hans-Joachim SchollBernhard JansenRolf-Volker Meyer
    • Hans-Joachim SchollBernhard JansenRolf-Volker Meyer
    • C07D251/34C08G18/02C08G18/18C08G18/70C08G18/79C08G18/82
    • C07D251/34C08G18/706C08G18/792
    • The present invention relates to a process for preparing polyisocyanates containing isocyanurate groups by trimerizing a portion of the isocyanate groups of an organic polyisocyanate component containing a) one or more diisocyanates corresponding to formula (1) ##STR1## wherein R represents a saturated, straight-chain, aliphatic hydrocarbon group having 8 to 15 carbon atoms and optionally b) up to 95 NCO equivalent-%, based on the total equivalents a) and b), of one or more organic polyisocyanates other than a), in the presence of trimerization catalysts and terminating the trimerization reaction at any desired degree of trimerization. The invention also relates to the polyisocyanates containing isocyanurate groups obtained by this process and to their use, optionally in excess starting polyisocyanates and optionally blocked with blocking agents for isocyanate groups, as an isocyanate component for preparing polyisocyanate addition products.
    • 本发明涉及通过将有机多异氰酸酯组分的一部分异氰酸酯基团三聚而制备含有异氰脲酸酯基的多异氰酸酯的方法,该有机多异氰酸酯组分含有a)一种或多种对应于式(1)的二异氰酸酯,其中R表示饱和 ,具有8至15个碳原子的直链脂族烃基和任选的b)基于a)和b)的总当量a)和b)至多95NCO当量,一种或多种除a)之外的有机多异氰酸酯,在 存在三聚催化剂并以任何所需的三聚程度终止三聚反应。 本发明还涉及通过该方法获得的含有异氰脲酸酯基团的多异氰酸酯基团,以及它们的用途,任选地过量起始多异氰酸酯,并任选地用异氰酸酯基团的封端剂封端,作为用于制备多异氰酸酯加成产物的异氰酸酯组分。
    • 10. 发明授权
    • 1,5-Diaminoheptanol-1,6,
    • 1,5-二氨基庚醇-1,6,
    • US4918235A
    • 1990-04-17
    • US227224
    • 1988-08-02
    • Hans-Joachim SchollJosef Pedain
    • Hans-Joachim SchollJosef Pedain
    • C07C213/02C07B61/00C07C67/00C07C213/00C07C215/18C08G18/10C08G18/65
    • C08G18/10
    • The present invention is directed to a new chemical compound, 1,5-diaminoheptanol-6, which corresponds to the formula ##STR1## The present invention is additionally directed to a process for the preparation of 1,5-diaminoheptanol-6 by reacting L-lysine in its free form and/or in the form of its HCl salt, with acetic acid anhydride in the presence of a tertiary organic amino base and with the addition of a 4-aminopyridine derivative, hydrogenating the resulting 1,5-bisacetaminohepthanone-6 to 1,5-bisacetaminoheptanol-6, forming a salt of 1,5-diaminoheptanol-6 by treating 1,5-bisacetaminoheptanone-6 with a mineral acid and isolating the free amine by treating the 1,5-diaminoheptanol-6 salt of a mineral acid with a strong base.Finally, the present invention is directed to the use of 1,5-diaminoheptanol-6 as at least a portion of the chain lengthening agent for the preparation of polyurethane plastics by the isocyanate polyaddition process.
    • 本发明涉及对应于式(I)的新化合物1,5-二氨基庚醇-6本发明另外涉及一种制备1,5-二氨基庚醇-6 通过使其游离形式的L-赖氨酸和/或其盐酸盐的形式与乙酸酐在叔有机氨基的存在下反应,并加入4-氨基吡啶衍生物,将所得的1,5 - 双乙酰氨基庚酮-6至1,5-双乙酰氨基庚醇-6,通过用无机酸处理1,5-双氨基庚酮-6,形成1,5-二氨基庚醇-6的盐,并通过处理1,5-二氨基庚醇 -6盐的无机酸与强碱。 最后,本发明涉及1,5-二氨基庚醇-6作为链增长剂的至少一部分用于通过异氰酸酯加聚方法制备聚氨酯塑料的用途。