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    • 2. 发明授权
    • Method for making polysilazanes
    • 聚硅氮烷的制备方法
    • US4675424A
    • 1987-06-23
    • US841545
    • 1986-03-19
    • Roswell E. King, IIIBernard KannerSteven P. HopperCurtis L. Schilling, Jr.
    • Roswell E. King, IIIBernard KannerSteven P. HopperCurtis L. Schilling, Jr.
    • C04B35/589C07F7/10C08G77/48C08G77/62
    • C08G77/62C04B35/589C07F7/10
    • A method of preparing silazane polymers, with 3 or more repeating units, of the general formula--((CH.sub.3).sub.2 N).sub.e Si(R).sub.a (R'HN).sub.f H.sub.c (NR').sub.g --and a (CH.sub.3).sub.2 NH byproduct group where R is hydrogen, an alkyl group having 1-6 carbon atoms or an aryl group having 6-12 carbon atoms, a=0, or 1, b=2-4, C=0-2, d=0 or 1, e=0-2, f=0-2, g=1-3 and a+c+e+f+g=4 for the polymer units; and R' is hydrogen or methyl, whereby the silazane polymer is substantially free of halide impurities, and wherein this method comprises:transaminating an aminosilane of the general formula (R).sub.a ((CH.sub.3).sub.2 N).sub.b H.sub.c S; where R is defined as above and a+b+c=4 with an amine of the general formula (CH.sub.3).sub.d NH.sub.3-d whereby d is defined as above and the amine has a molecular weight lower than 45 all in the presence of an acid catalyst or the ammonium salt of the acid and thereafter condensing to form the polymer.
    • 制备具有3个以上重复单元的具有通式 - ((CH 3)2 N)e Si(R)a(R'HN)fHc(NR')g - 和(CH 3)2 NH副产物基团)的硅氮烷聚合物的方法 其中R是氢,具有1-6个碳原子的烷基或具有6-12个碳原子的芳基,a = 0或1,b = 2-4,C = 0-2,d = 0或1, 对于聚合物单元,e = 0-2,f = 0-2,g = 1-3和a + c + e + f + g = 4; 并且R'是氢或甲基,由此硅氮烷聚合物基本上不含卤化物杂质,并且其中该方法包括:将通式(R)a((CH 3)2 N)b H c S的氨基硅烷转氨酸; 其中R如上所定义,a + b + c = 4与通式(CH3)dNH3-d的胺反应,其中d如上定义,胺在酸存在下全部分子量低于45 催化剂或酸的铵盐,然后冷凝形成聚合物。
    • 4. 发明授权
    • Process for the preparation of alkoxyhydridosilanes
    • 制备烷氧基硅烷的方法
    • US4395564A
    • 1983-07-26
    • US397815
    • 1982-07-13
    • Bernard KannerSteven P. Hopper
    • Bernard KannerSteven P. Hopper
    • C07F7/02C07F7/04C07F7/18C07F7/08C07F7/10
    • C07F7/188C07F7/025C07F7/045
    • A process whereby silanes of the general formula:HSi(NRR').sub.x (R").sub.3-xwherein R, R' and R" are independently an aliphatic or aromatic, substituted or unsubstituted, saturated or unsaturated hydrocarbon radical having from one to eight carbon atoms, inclusive and R and R' may also be hydrogen and where R" may also be alkoxy and where x has a value from one to three are reacted in the presence of a catalyst with alcohols in the stoichiometry of approximately one equivalent of alcohol per mole of silicon-nitrogen bond to give unexpectedly high yields of alkoxyhydridosilanes. In the reaction the silyl amine groups have been replaced by alkoxide groups without significant loss of the silicon-hydrogen group. Similar reactions in the absence of a catalyst give undesirably low yields of the corresponding alkoxy silanes and, in most cases, substantial loss of silyl hydrogen groups.
    • 一种方法,其中通式为:HSi(NRR')x(R“)3-x的硅烷,其中R,R'和R”独立地是脂族或芳族取代或未取代的饱和或不饱和烃基, 1至8个碳原子,包括R 1和R 2',R和R'也可以是氢,并且其中R“也可以是烷氧基,并且其中x具有1至3的值在催化剂存在下与大约化学计量的醇反应 每摩尔硅 - 氮键相当于1当量醇,从而产生了意想不到的高产率的烷氧基硅烷。 在反应中,甲硅烷基胺基已被烷氧基组所取代,硅氢基团没有明显的损失。 在不存在催化剂的情况下,类似的反应给出了相应的烷氧基硅烷的不合需要的低产率,并且在大多数情况下甲硅烷基氢基团显着损失。