Organosiloxane block copolymers
    1.
    发明授权
    Organosiloxane block copolymers 失效
    有机硅氧烷嵌段共聚物

    公开(公告)号:US4356293A

    公开(公告)日:1982-10-26

    申请号:US210920

    申请日:1980-11-28

    CPC分类号: C08G77/08 C08G77/44

    摘要: A process for preparing organosiloxane block copolymers which comprises reacting (a) an organopolysiloxane containing Si-bonded hydroxyl groups and having an average molecular weight of at least 800 g/mole, in which at least 80 mole percent of the units are siloxane units, and one valence of each silicon atom is satisfied by an SiC-bonded organic radical, while the remaining silicon valences are satisfied by siloxane oxygen atoms or hydroxyl groups, with (b) a diorganopolysiloxane having one Si-bonded hydroxyl group in each terminal unit and an average of at least 10 silicon atoms per molecule in the presence of (c) an organic solvent and (d) an alkali metal carbonate and/or an alkali metal carboxylate to form an organosiloxane block copolymer.

    摘要翻译: 一种制备有机硅氧烷嵌段共聚物的方法,其包括使(a)含有Si键合的羟基并且平均分子量为至少800g / mol的有机聚硅氧烷,其中至少80摩尔%的单元是硅氧烷单元,以及 通过SiC键合的有机基团满足每个硅原子的一价,而硅氧烷氧原子或羟基满足剩余的硅价,其中(b)在每个末端单元中具有一个与Si键合的羟基的二有机聚硅氧烷和 在(c)有机溶剂和(d)碱金属碳酸盐和/或碱金属羧酸盐存在下,每分子具有至少10个硅原子的平均值,以形成有机硅氧烷嵌段共聚物。

    Process for preparing organopolysiloxanes and copolymers thereof
    2.
    发明授权
    Process for preparing organopolysiloxanes and copolymers thereof 失效
    制备有机聚硅氧烷的方法及其共聚物

    公开(公告)号:US4413104A

    公开(公告)日:1983-11-01

    申请号:US332140

    申请日:1981-12-18

    摘要: A process for preparing organopolysiloxanes having SiC-bonded organofunctional groups, which comprises reacting an organopolysiloxane containing SiC-bonded hydroxyl and/or alkoxy groups and having an average of about 0.85 to 1.8 SiC-bonded monovalent hydrocarbon radicals or halogenated monovalent hydrocarbon radicals for each Si atom, with an organosilicon compound containing alkoxy groups and/or siloxane oxygen groups and at least one SiC-bonded organofunctional radical per molecule in the presence of an organic solvent and a basic catalyst.The resultant organopolysiloxanes having SiC-bonded organofunctional groups may, for example, be used for preparing modified polymers by copolymerizing the organopolysiloxanes with a monomer containing an aliphatic double bond, such as styrene or hydroxyethyl methacrylate, or by reacting the organopolysiloxanes with an additional polymer such as an epoxy resin. When a monomer, containing an aliphatic double bond is used in the copolymerization, the resultant modified polymers may be used to manufacture hard contact lenses.

    摘要翻译: 一种制备具有SiC键合的有机官能团的有机聚硅氧烷的方法,该方法包括使含有SiC键合的羟基和/或烷氧基的有机聚硅氧烷与每个Si平均约0.85至1.8的SiC键合的一价烃基或卤代一价烃基反应 原子与含有烷氧基和/或硅氧烷氧基的有机硅化合物和在有机溶剂和碱性催化剂存在下每分子至少一个与SiC结合的有机官能团。 具有SiC键合的有机官能团的所得有机聚硅氧烷可以例如通过使有机聚硅氧烷与含有脂族双键的单体如苯乙烯或甲基丙烯酸羟乙酯共聚而制备改性聚合物,或通过使有机聚硅氧烷与另外的聚合物 作为环氧树脂。 当在共聚中使用含有脂肪族双键的单体时,所得到的改性聚合物可用于制造硬质隐形眼镜。

    Silicone resin powder and a process for preparing the same
    3.
    发明授权
    Silicone resin powder and a process for preparing the same 失效
    硅树脂粉末及其制备方法

    公开(公告)号:US4935484A

    公开(公告)日:1990-06-19

    申请号:US194358

    申请日:1988-05-16

    摘要: Silicone resin powders are obtained by spray drying aqueous colloidal suspensions of organopolysiloxanes which are prepared by adding an alkoxysilane and/or a partial hydrolysate thereof and, if appropriate, mixed with an organo(poly)siloxane which is free of alkoxy groups and contains a maximum of 8 siloxane units per molecule, to water in the presence of an emulsifier at a maximum rate of 5 moles of organosilicon compound per hour per liter of water.

    摘要翻译: 通过喷雾干燥有机聚硅氧烷的水性胶态悬浮液获得硅氧烷树脂粉末,其通过加入烷氧基硅烷和/或其部分水解产物,并且如果合适的话,与无烷氧基的有机(多)硅氧烷混合并且含有最大 每分子8个硅氧烷单元以每小时每升水最大速率5摩尔有机硅化合物在乳化剂存在下与水反应。

    Process for preparing colloidal suspensions of organopolysiloxanes
    4.
    发明授权
    Process for preparing colloidal suspensions of organopolysiloxanes 失效
    制备有机聚硅氧烷的胶体悬浮液的方法

    公开(公告)号:US4857582A

    公开(公告)日:1989-08-15

    申请号:US195567

    申请日:1988-05-18

    IPC分类号: C08L83/04 C08G77/06 C08J3/03

    摘要: Colloidal suspensions of organopolysiloxanes are prepared by mixing an organosilicon compound selected from the group consisting of mixtures of alkoxysilanes and/or partial hydrolysates thereof and an organo(poly)siloxane which is optionally free of alkoxy groups and contains a maximum of 8 siloxane units, which is mixed with at least one alkoxysilane and/or a partial hydrolysate thereof, with water in the presence of an emulsifier, at a maximum rate of 5 moles of organosilicon compound per hour per liter of water, in which the organosilicon compound and the water is fed continuously, but separately from one another, into a reactor, in which at least one of the two substances contains an emulsifier, while the alkanol is being continuously removed by distillation from the aqueous suspension continuously emerging from the reactor. The aqueous suspension from which the alkanol has been removed by distillation is, if desired, recycled back into the reactor. A tubular reactor is preferably employed in which the water is added continuously at, or near the upper end of the tubular reactor and the organosilicon compound is added via several inlet points arranged along the longitudinal axis of the tubular reactor.

    摘要翻译: 有机聚硅氧烷的胶态悬浮液是通过混合选自烷氧基硅烷和/或其部分水解产物的混合物的有机硅化合物和任选不含烷氧基并且含有最多8个硅氧烷单元的有机(多)硅氧烷制备的, 与至少一种烷氧基硅烷和/或其部分水解产物在乳化剂存在下与水混合,其最大速率为每小时每升水5摩尔有机硅化合物,其中有机硅化合物和水为 连续地但彼此分开地进入反应器,其中两种物质中的至少一种含有乳化剂,同时通过蒸馏从连续从反应器中出来的水性悬浮液连续除去链烷醇。 通过蒸馏除去链烷醇的水性悬浮液如果需要,则循环回到反应器中。 优选使用管式反应器,其中水在管式反应器的上端处或附近连续加入,并且有机硅化合物通过沿着管式反应器的纵向轴线布置的几个入口点加入。

    Organosols of organopolysiloxanes and a process for preparing the same
    6.
    发明授权
    Organosols of organopolysiloxanes and a process for preparing the same 失效
    有机聚硅氧烷的有机溶胶及其制备方法

    公开(公告)号:US5049636A

    公开(公告)日:1991-09-17

    申请号:US330529

    申请日:1989-03-30

    摘要: Organosols of organopolysiloxanes are prepared by adding water-soluble organic solvents or mixtures thereof or water-soluble mixtures of water-soluble and water-insoluble organic solvents to aqueous, colloidal suspensions of organopolysiloxanes obtained by adding at least one alkoxysilane and/or the partial hydrolyzate thereof, and, if appropriate, mixed with an organo(poly)siloxane free of alkoxy groups and having a maximum of 8 siloxane units per molecule, to water in the presence of emulsifiers at a maximum rate of 5 moles of organosilicon compound per hour and per liter of water, and subsequently removing the water by distillation.

    摘要翻译: 通过将水溶性有机溶剂或其混合物或水溶性和水不溶性有机溶剂的水溶性混合物加入到通过加入至少一种烷氧基硅烷和/或部分水解产物得到的有机聚硅氧烷的水性胶体悬浮液中来制备有机聚硅氧烷的有机溶剂 并且如果合适,在乳化剂存在下,以每小时5摩尔有机硅化合物的最大速率将水与每分子具有最多8个硅氧烷单元的有机(聚)硅氧烷混合,并且 每升水,然后通过蒸馏除去水。

    Organooligosilsesquioxanes
    7.
    发明授权
    Organooligosilsesquioxanes 失效
    有机低聚倍半硅氧烷

    公开(公告)号:US5047492A

    公开(公告)日:1991-09-10

    申请号:US416073

    申请日:1989-10-02

    摘要: The invention relates to compounds of the formula[RSiO.sub.3/2 ].sub.z (I)in whichz is 6, 8 or 10;R represents the same or different radicals of the formulas--CH.sub.2 CH.sub.2 --X (II), --CH(CH.sub.3)--X (III) or --O--Si(R'.sub.2)--Y (IV) with the proviso that up to z-1 of the radicals can also be radicals of the formula --O--SiR'.sub.3, in which X represents a monovalent radical or one half of a divalent radical of the formulas ##STR1## R' represents the same or different C.sub.1 - to C.sub.6 -alkyl, C.sub.1 - to C.sub.6 -alkoxy or phenyl radicals;R" represents the same or different C.sub.1 - to C.sub.18 -alkyl radicals, which can be substituted by radicals of formulas (V) or (VI);R'" represents the same or different divalent C.sub.1 - to C.sub.18 -hydrocarbon radicals, preferably alkylene and/or phenylene radicals and/or radicals of the formula--(R'.sub.2 SiO).sub.n --;Z represents a halogen atom or an N-bonded amino radical, that is an NH.sub.2 radical, an N-piperidinyl, n-piperazinyl or N-morpholinyl radical or a C.sub.1 - to C.sub.6 -N-monoalkylamino or a C.sub.1 - to C.sub.6 -dialkylamino radical;Y represents a hydrogen atom, an optionally halogenated C.sub.2 - to C.sub.10 -hydrocarbon radical or a radical of the formulas (II) or (III); andn represents an integer having avalue of at least 1.

    摘要翻译: 本发明涉及式[RSiO 3/2] z(I)的化合物,其中z为6,8或10; R表示相同或不同的式-CH 2 CH 2 -X(II),-CH(CH 3)-X(III)或-O-Si(R'2)-Y(IV)的基团,条件是至多z -1的基团也可以是式-O-SiR'3的基团,其中X表示一价基团或一半式(R'2SiO)nR',(V)[(R '(2S)O] n] 1/2,(Ⅵ)SR“,(Ⅶ)[SR”s] 1/2或(ⅩⅤ)CH2Z,(Ⅷ)R'表示相同或不同的C1-至C6- 烷基,C 1至C 6 - 烷氧基或苯基; R“表示可被式(Ⅴ)或(Ⅵ)的基团取代的相同或不同的C1-至C18-烷基; R“表示相同或不同的二价C 1 -C 18烃基,优选亚烷基和/或亚苯基和/或式 - (R'2 SiO)n - 的基团; Z表示卤素原子或N-键合氨基,即NH 2基,N-哌啶基,n-哌嗪基或N-吗啉基或C 1至C 6 -N-单烷基氨基或C 1至C 6 - 二烷基氨基 激进; Y表示氢原子,任选卤代的C 2 -C 10烃基或式(II)或(III)的基团; 并且n表示具有至少1的avalue的整数。