.beta.-diketo functional organosilicon compounds
    11.
    发明授权
    .beta.-diketo functional organosilicon compounds 失效
    β-二酮功能性有机硅化合物

    公开(公告)号:US6121404A

    公开(公告)日:2000-09-19

    申请号:US110281

    申请日:1998-07-06

    摘要: A method of making .beta.-diketo functional silanes and siloxanes in which the acetoacetic ester moiety, i.e., .beta.-diketo CH.sub.3 COCH.sub.2 CO--, is attached to the oxygen or nitrogen atoms of C--OH or C--NH.sub.2 containing functional silanes or siloxanes, by reacting the organosilicon nucleophile with diketene, as illustrated below for the C--OH containing functional silane. ##STR1## The products can be formed into curable compositions, or used as additives in durable textile treatments, polyurethane foams, and hair care applications.

    摘要翻译: 制备β-二酮功能性硅烷和硅氧烷的方法,其中乙酰乙酸酯部分,即β-二酮基CH 3 COCH 2 CO-,通过使C-OH或含C-NH 2的官能硅烷或硅氧烷的氧或氮原子连接,通过 有机硅亲核试剂与双烯酮,如下所述,含有C-OH的官能硅烷。 产品可以形成可固化组合物,或用作耐用纺织品处理中的添加剂,聚氨酯泡沫和护发应用。

    Storage-stable water-repellent composition for masonry materials
    20.
    发明授权
    Storage-stable water-repellent composition for masonry materials 失效
    储存稳定的砌体材料防水组合物

    公开(公告)号:US5919296A

    公开(公告)日:1999-07-06

    申请号:US50389

    申请日:1998-03-30

    摘要: A storage-stable composition adapted for imparting water-repellent properties to masonry materials comprises an aqueous emulsion which defines a continuous aqueous phase and a discontinuous organosilicon phase. The emulsion is formulated from components comprising: (A) a water-insoluble alkoxysilane of the average general formula R.sub.n --Si--R'.sub.(4-n) wherein n is a number from 1 to 2, R is a C.sub.5 -C.sub.20 monovalent hydrocarbon radical and R' is a C.sub.1 -C.sub.4 alkoxy group; (B) a hydrogen-functional polysiloxane having at least two silicon-bonded hydrogen atoms per molecule, at least five siloxy units per molecule and a kinematic viscosity between about 0.5.times.10.sup.-6 and 1,000.times.10.sup.-6 m.sup.2 /sec at 25.degree. C.; (C) an emulsifier; and (D) water. The discontinuous organosilicon phase comprises components (A) and (B) and the continuous aqueous phase comprising said water. Components (A) and (B) being present in the organosilicon phase in a weight ratio of (A):(B) such that said emulsion is physically and chemically stable after storage for six months at room temperature or for six weeks at 50.degree. C.

    摘要翻译: 适用于赋予砖石材料防水性能的储存稳定组合物包含限定连续水相和不连续有机硅相的水性乳液。 该乳液由以下组分配制:(A)平均通式为Rn-Si-R'(4-n)的水不溶性烷氧基硅烷,其中n为1至2的数,R为C 5 -C 20单价烃 基团和R'是C 1 -C 4烷氧基; (B)每分子具有至少两个硅键合氢原子的氢官能聚硅氧烷,每分子至少五个甲硅烷氧基单元,25℃下的运动粘度约为0.5×10 -6至1,000×10 -6 m 2 /秒。 ; (C)乳化剂; 和(D)水。 不连续的有机硅相包含组分(A)和(B),并且包含所述水的连续水相。 组分(A)和(B)以(A):(B)的重量比存在于有机硅相中,使得所述乳液在室温下储存六个月后或在50℃保存六周后物理和化学稳定 C。