Polysilane precursors containing olefinic groups for silicon carbide
    2.
    发明授权
    Polysilane precursors containing olefinic groups for silicon carbide 失效
    含有碳化硅烯烃基的聚硅烷前体

    公开(公告)号:US4783516A

    公开(公告)日:1988-11-08

    申请号:US554291

    申请日:1983-11-22

    CPC分类号: C08G77/60 C04B35/571

    摘要: This invention is concerned with novel polysilanes containing olefinic groups which are prepared by reactions of halogen-containing organosilane monomers or mixtures thereof with sodium metal in an appropriate solvent or mixture of solvents. Such polysilane polymers are soluble and thermoplastic, and can be directly converted to silicon carbide compositions by pyrolysis at atmospheric pressure.

    摘要翻译: 本发明涉及通过含卤素的有机硅烷单体或其混合物在合适的溶剂或溶剂混合物中与金属钠的反应制备的含有烯烃基团的新型聚硅烷。 这种聚硅烷聚合物是可溶的和热塑性的,并且可以通过在大气压下热解直接转化成碳化硅组合物。

    Method for preparing methacryloxy and acryloxy containing organosilanes
and organosilicones
    3.
    发明授权
    Method for preparing methacryloxy and acryloxy containing organosilanes and organosilicones 失效
    制备含甲基丙烯酰氧基和丙烯酰氧基的有机硅烷和有机硅氧烷的方法

    公开(公告)号:US4709067A

    公开(公告)日:1987-11-24

    申请号:US865009

    申请日:1986-05-20

    CPC分类号: C08G77/38 C07F7/1876

    摘要: This invention relates to an improved process for preparing, purifying and/or storing methacryloxy or acryloxy containing organosilicon compounds without the undesirable polymerization normally associated with the methacrylate bonds. In an alternative embodiment, the process is even further improved with the addition of certain stabilizers, and in particular diketone or ketoester stabilizers.

    摘要翻译: 本发明涉及一种改进的制备,纯化和/或储存含有甲基丙烯酰氧基或丙烯酰氧基的有机硅化合物的方法,而没有通常与甲基丙烯酸酯键相关的不期望的聚合。 在替代实施方案中,通过加入某些稳定剂,特别是二酮或酮酯稳定剂,该方法甚至进一步改善。

    Method for making polysilazanes
    4.
    发明授权
    Method for making polysilazanes 失效
    聚硅氮烷的制备方法

    公开(公告)号:US4675424A

    公开(公告)日:1987-06-23

    申请号:US841545

    申请日:1986-03-19

    CPC分类号: C08G77/62 C04B35/589 C07F7/10

    摘要: 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.

    摘要翻译: 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。

    High resilience foam
    7.
    发明授权
    High resilience foam 失效
    高弹性泡沫

    公开(公告)号:US4039490A

    公开(公告)日:1977-08-02

    申请号:US644805

    申请日:1975-12-29

    申请人: Bernard Kanner

    发明人: Bernard Kanner

    IPC分类号: C08J9/00

    摘要: A process for producing high resilience polyether urethane foam using tertiary alcohol modified siloxane surfactants.

    摘要翻译: 使用叔醇改性的硅氧烷表面活性剂生产高弹性聚醚聚氨酯泡沫的方法。

    Organosilicone polymers and polyester urethane foam produced therewith
    8.
    发明授权
    Organosilicone polymers and polyester urethane foam produced therewith 失效
    有机硅聚合物和聚酯聚氨酯泡沫

    公开(公告)号:US4031042A

    公开(公告)日:1977-06-21

    申请号:US608222

    申请日:1975-08-27

    摘要: Organosilicone polymers are provided containing monofunctional units (R).sub.3 SiO.sub.1/2 and reoccurring difunctional units (R)(Q)SiO.sub.2/2 and (R)(E)SiO.sub.2/2, as essentially the sole types of units or in combination with reoccurring difunctional dialkylsiloxy units, R.sub.2 SiO.sub.2/2, where R of said units is alkyl, Q is --O--R.degree.--CN or --R.degree.--CN, R.degree. being bivalent alkylene, and E is a polyoxyalkylene block, at least 75 weight percent of the oxyalkylene content of the polymers being constituted of oxyethylene and the mole ratio of the (R).sub.3 SiO.sub.1/2 :(R).sub.2 SiO.sub.2/2 :(R)(Q)SiO.sub.2/2 :(R)(E)SiO.sub.2/2 units being about 2:0-20:2-20:2-30, provided the combined weight of said units is constituted, on the average, of from about 50 to about 85 weight percent of said polyoxyalkylene blocks (E). The polymers of the invention are effective stabilizers of flexible polyester polyol-based polyurethane foams and offer particular advantage in the formation of flame-retarded foams. Also described is a particular class of cyano-substituted polyalkylsiloxane hydrides which are useful in the preparation of the aforesaid polymers.

    摘要翻译: 提供的有机硅聚合物含有单官能单元(R)3SiO1 / 2和复发的双官能单元(R)(Q)SiO 2/2和(R)(E)SiO 2/2,作为基本上单一类型的单元或与重复发生的双官能团 二烷基甲硅烷氧基单元,R2SiO2 / 2,其中所述单元的R是烷基,Q是-OR-CN或-R-CN,R DEG是二价亚烷基,E是聚氧化烯嵌段,至少75重量%的氧化烯 聚合物的含量由氧乙烯构成,(R)3 SiO 1/2/2(R)(Q)SiO 2 / 2:(R)(E)SiO 2/2单元的摩尔比约为 2:0-20:2-20:2-30,条件是所述单元的组合重量平均为约50至约85重量%的所述聚氧化烯嵌段(E)。 本发明的聚合物是柔性聚酯多元醇基聚氨酯泡沫的有效稳定剂,并且在形成阻燃泡沫体方面具有特别的优点。 还描述了可用于制备上述聚合物的特定类别的氰基取代的聚烷基硅氧烷氢化物。

    Novel direct process
    9.
    发明申请
    Novel direct process 失效
    新的直接过程

    公开(公告)号:US20070249855A1

    公开(公告)日:2007-10-25

    申请号:US11649193

    申请日:2007-01-03

    申请人: Bernard Kanner

    发明人: Bernard Kanner

    IPC分类号: C07F7/00

    摘要: The invention relates to continuous processes for making cyclic dimethylsiloxane oligomers by reacting in situ methyl bromide, dimethyl ether and activated silicon particles in a direct process reaction zone to produce methylsiloxanes, wherein the proportion of dimethylsiloxane produced in said reaction zone is greater than 75 mole % of the methylsiloxanes produced and recovering the dimethylsiloxane from the reactions zone. The invention favors making cyclic dimethylsiloxane oligomers by this in situ direct reaction.

    摘要翻译: 本发明涉及通过在直接工艺反应区中原位甲基溴,二甲醚和活性硅颗粒反应生成甲基硅氧烷来制备环状二甲基硅氧烷低聚物的连续方法,其中在所述反应区产生的二甲基硅氧烷的比例大于75摩尔% 的甲基硅氧烷产生并从反应区回收二甲基硅氧烷。 本发明有利于通过原位直接反应制备环状二甲基硅氧烷低聚物。