申请人:OSi Specialties, Inc.
公开号:US05354880A1
公开(公告)日:1994-10-11
This invention provides a class of cyclic silylureas and a process of preparing them, which process comprises reacting a cyclosilazane with an isocyanate containing moiety; a class of cyclosilazanes and process for making them, which process comprises heating an aminoalkylalkoxysilane in the presence of a basic catalyst at a temperature less than 100.degree. C. at subatmospheric pressure; and aminoalkylalkoxysilanes and a process for making them, which process comprises reacting a nitrile and a vinylsilane while heating in the presence of a base selected from the group consisting (a) an alkali metal, (b) alkali metal alkoxide, (c) an alkali metal amide, (d) an alkali metal hydride and (e) mixtures thereof to form a reaction product which is subsequently hydrogenated.
本发明提供了一类环状硅脲及其制备方法,所述方法包括将环状硅氮烷与含有异氰酸酯官能团的化合物反应;一类环状硅氮烷及其制备方法,所述方法包括在基催化剂存在下,在低于100℃的温度和亚大气压下加热氨基烷基烷氧基硅烷;以及一类氨基烷基烷氧基硅烷及其制备方法,所述方法包括在碱性催化剂存在下,将腈和乙烯基硅烷加热反应,所述碱性催化剂选自(a)碱金属,(b)碱金属醇盐,(c)碱金属酰胺,(d)碱金属氢化物和(e)其混合物,形成反应产物,随后对其进行氢化处理。