Modified polyorganosiloxane containing isocyanate group and process for
preparing the same
    2.
    发明授权
    Modified polyorganosiloxane containing isocyanate group and process for preparing the same 失效
    含有异氰酸酯基团的改性聚有机硅氧烷及其制备方法

    公开(公告)号:US4822850A

    公开(公告)日:1989-04-18

    申请号:US136132

    申请日:1987-12-21

    摘要: There is here provided a modifier for a resin containing an active hydrogen capable of reacting with an isocyanate group. The modifier of the present invention can give characteristics such as low frictional properties, water repellency, oil repellency and antithrombotic properties to the resin, and when the modifier of the present invention is used, neither bleeding phenomenon nor deterioration in mechanical strength takes place.The present modifier comprises a modified polyorganosiloxane containing an isocyanate group which is represented by the general formula (A) ##STR1## wherein Me is a methyl group, Ph is a phenyl group, R is a methyl or phenyl group, R.sup.1 is H or a methyl group, each of m and n is 0 or more and a value of m+n is within the range of 0 to 600, a is 1, 2 or 3, b is 1, 2 or 3, c is a value of 1 to 300, and Q is a residue obtained by subtracting one isocyanate group from a compound having at least two isocyanate groups.A process for preparing the compound having the general formula (A) comprises reacting a compound in which the moiety of --O--CO--NH--Q in the general formula (A) is not introduced yet thereinto, i.e., the moiety is --OH, with another compound having at least 2 isocyanate groups.

    Organosiloxane and process for preparing the same
    3.
    发明授权
    Organosiloxane and process for preparing the same 失效
    有机硅氧烷及其制备方法

    公开(公告)号:US5140087A

    公开(公告)日:1992-08-18

    申请号:US605381

    申请日:1990-10-30

    IPC分类号: C08G77/08 C08G77/24

    CPC分类号: C08G77/24 C08G77/08

    摘要: The present invention relates to an organosiloxane compound suitable for the modification of silicone rubbers and synthetic resins, an organosiloxane compound useful as its intermediate, and a process for preparing them. The organosiloxane compound of the present invention can be represented by the general formula (IV) ##STR1## wherein j is an integer of 1 to 2000, R is an alkyl group having 1 to 4 carbon atoms, and R.sup.1 is a pentafluorophenyl group or a straight-chain or a branched fluoroalkyl group represented by the formula (II)C.sub.a H.sub.b F.sub.2a-b+1 (II)wherein a is an integer of 3 to 18, and b is an integer of 0 to 2a.The siloxane compounds of the present invention also include compounds having siloxane chains, at least one of the chains having a substituent with a fluorine atom containing group at the terminal thereof. Each of the molecules constituting the polysiloxane compound of the present invention has a terminal hydrosilyl group portion and a fluorine atom-containing terminal substituent portion therein. Since the reactive group of the hydrosilyl group is chemically bonded to the synthetic resins, the deterioration in characteristics with time can be hindered. The synthetic resins can be provided with the specific function of the fluoroalkyl group without impairing characteristics which the polysiloxane has.

    摘要翻译: 本发明涉及适用于硅橡胶和合成树脂的有机硅氧烷化合物,可用作其中间体的有机硅氧烷化合物及其制备方法。 本发明的有机硅氧烷化合物可以由通式(IV)表示,其中j为1〜2000的整数,R为碳原子数为1〜4的烷基,R 1为五氟苯基 基团或由式(II)表示的直链或支链氟烷基,CaHbF2a-b + 1(Ⅱ)其中a为3〜18的整数,b为0〜2a的整数。 本发明的硅氧烷化合物还包括具有硅氧烷链的化合物,至少一个具有在其末端具有含氟原子的基团的取代基的链。 构成本发明的聚硅氧烷化合物的各分子在其中具有末端氢化甲硅烷基部分和含氟原子的末端取代基部分。 由于氢化硅烷基的反应性基团与合成树脂化学键合,所以可能会妨碍特性随时间的劣化。 可以提供合成树脂具有氟烷基的特定功能,而不损害聚硅氧烷具有的特性。

    Polyorganosiloxane
    4.
    发明授权
    Polyorganosiloxane 失效
    聚硅氧烷

    公开(公告)号:US5098981A

    公开(公告)日:1992-03-24

    申请号:US652376

    申请日:1991-02-07

    CPC分类号: C08G77/20 C08G77/24

    摘要: A novel polyorganosiloxane is provided which has a fluorine atom-containing substituent at one terminal of its molecular chain and an unsaturated double bond-containing substituent at the other terminal thereof. The polyorgansiloxane of the present invention is represented by the general formula (I) ##STR1## wherein j is an integer of 1 to 2000, and R.sup.1 is an unsaturated double bond-containing group, each of R.sup.2 and R.sup.3 is an alkyl group having 1 to 4 carbon atoms, phenyl group, vinyl group, straight-chain or branched alkenyl group having 3 to 20 carbon atoms, or a siloxane chain which is similar to ##STR2## and R.sup.4 is a fluorine atom-containing substituent, ##STR3## wherein R.sup.10 is similar to R.sup.4 and is the fruorine atom-containing substituent, R.sup.11 is an alkyl group having 1 to 4 carbon atoms or phenyl group, and the oxygen atoms sited on the right side of the above formulae are combined with a siloxane chain having the unsaturated double bond-containing substituent at the terminal thereof which is similar to ##STR4##

    Organosiloxane and process for preparing the same
    6.
    发明授权
    Organosiloxane and process for preparing the same 失效
    有机硅氧烷及其制备方法

    公开(公告)号:US4992521A

    公开(公告)日:1991-02-12

    申请号:US341225

    申请日:1989-04-21

    CPC分类号: C08G77/08 C08G77/24

    摘要: The present invention relates to an organosiloxane compound suitable for the modification of silicone rubbers and synthetic resins, an organosiloxane compound useful as its intermediate, and a process for preparing them. The organosiloxane compound of the present invention can be represented by the general formula (IV) ##STR1## wherein j is an integer of 1 to 2000, R is an alkyl group having 1 to 4 carbon atoms, and R.sup.1 is a pentafluorophenyl group or a straight-chain or a branched fluoroalkyl group represented by the formula (III)C.sub.1 H.sub.b F.sub.2a-b+1 (II)wherein a is an integer of 3 to 18, and b is an integer of 0 to 2a.The siloxane compound of the present invention has a siloxane chain each having a substituent with a fluorine atom containing group at the terminal thereof. Each of molecules constituting the polysiloxane compound of the present invention has a terminal hydrosilyl group portion and a fluorine atom-containing terminal substituent portion therein. Since the reactive group of the hydrosilyl group is chemically bonded to the synthetic resins, the deterioration in characteristics with time can be hindered. The synthetic resins can be provided with the specific function of the fluoroalkyl group without impairing characteristics which the polysiloxane has.

    Polyorganosiloxane compounds with epoxy group
    7.
    发明授权
    Polyorganosiloxane compounds with epoxy group 失效
    具有环氧基团的聚有机硅氧烷化合物

    公开(公告)号:US4987203A

    公开(公告)日:1991-01-22

    申请号:US426030

    申请日:1989-10-24

    CPC分类号: C08G77/385

    摘要: A polyorganosiloxane compound contains a fluorine-containing substituent at least at its .alpha.-, .alpha.'- or .alpha."-position and a substituent having an epoxy linkage at its .omega.-position. The polyorganosiloxane compound can provide a synthetic resin with properties which cannot be provided by conventional polysiloxane compound by incorporating the polyorganosiloxane compound into the synthetic resin through a chemical linkage via the epoxy linkage thereof and a group reactive with the epoxy linkage thereof.

    摘要翻译: 聚有机硅氧烷化合物至少在其α - ,α'或α'-位上含有含氟取代基和在其ω-位上具有环氧键的取代基。 聚有机硅氧烷化合物可以提供一种合成树脂,其具有通过将聚有机硅氧烷化合物通过化学键经由其环氧键和与其环氧键反应的基团引入合成树脂而不能由常规聚硅氧烷化合物提供的性质。