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    • 3. 发明授权
    • Cyclosiloxanes containing mesogenic side groups
    • 含有介晶侧基的环硅氧烷
    • US5304667A
    • 1994-04-19
    • US38312
    • 1993-03-29
    • Norman HaeberleWolfgang HaasFranz-Heinrich Kreuzer
    • Norman HaeberleWolfgang HaasFranz-Heinrich Kreuzer
    • C07F7/21C09K19/40G02F1/13C07F7/04C07F7/08
    • C09K19/408C07F7/21
    • The present invention relates to cyclic siloxanes which have at least one group of formula (1) bonded to a silicon atom--(CH.sub.2).sub.x --R"--[--L--A--].sub.y --(L).sub.z --T (1),in which x is an integer having a value of at least 2, preferably having a value of from 2 to 10, R" is a chemical bond or a divalent radical of the formula --COO--, --OOC--, --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C--, --N.dbd.N--, --N.dbd.N, --N.dbd.CH--, --CH.dbd.N or --Si(R).sub.2 --, where the radical R is identical or different and is an optionally substituted hydrocarbon radical having from 1 to 18 carbon atoms, L which is the same or different represents the 1,4-phenylene or 1,4-cyclohexylene radicals which are optionally 2-, 3-, 5- and/or 6-substituted by at least one radical Q, Q is the same or different radical selected from hydrogen, fluorine or chlorine atoms or cyano, methyl or trifluoromethyl groups, A is the same or different and represents divalent radicals R" is a chemical bond or a divalent radical of the formula --CH.sub.2 --O--, --O--CH.sub.2 --, y is an integer having a value of from 0 to 10, preferably from 0 to 2, z is an integer having a value of from 0 to 10, preferably from 0 to 2, with the proviso that the sum y+z is at least 1, and T is a cholesteryl radical or a substituted or unsubstituted hydrocarbon radical having from 1 to 18 carbon atoms, in which the substituents are preferably selected from the group consisting of halogen atoms, cyano groups, nitro groups, hydrocarbonoxy groups having from 1 to 10 carbon atoms and mixtures thereof.
    • 本发明涉及具有至少一个结合到硅原子 - (CH 2)x R“ - ( - LA-)y - (L)zT(1)的式(1)的基团的环状硅氧烷,其中x是 整数,其值至少为2,优选为2至10,R“为化学键或式-COO - , - OOC - , - CH 2 -CH 2 - , - CH = CH - , - C(三键)C - , - N = N - , - N = N,-N = CH-,-CH = N或-Si(R)2 - ,其中基团R相同或不同, 是具有1至18个碳原子的任选取代的烃基,相同或不同的L代表任选为2-,3-,5-和/或6的1,4-亚苯基或1,4-亚环己基 被至少一个基团Q取代,Q是选自氢,氟或氯原子的相同或不同的基团或氰基,甲基或三氟甲基,A相同或不同,表示二价基团R“是化学键或 式-CH 2 -O - , - O-CH 2 - 的二价基团,y是具有va的整数 0至10,优选0至2,z为0至10,优选0至2的整数,条件是和y + z至少为1,T为 胆固醇基或具有1至18个碳原子的取代或未取代的烃基,其中取代基优选选自卤素原子,氰基,硝基,具有1至10个碳原子的烃氧基及其混合物 。
    • 7. 发明授权
    • Silanes and compositions prepared therefrom
    • 硅烷和由其制备的组合物
    • US4552942A
    • 1985-11-12
    • US650603
    • 1984-09-14
    • Franz-Heinrich KreuzerGisela GlaubermanErhard Bosch
    • Franz-Heinrich KreuzerGisela GlaubermanErhard Bosch
    • C08L83/00C07F7/04C07F7/18C08K5/5415C08K5/5419C08K5/544C08L83/04C08G77/04
    • C07F7/1828C07F7/045C08K5/54C08G77/16C08G77/18Y10S528/901
    • This invention relates to silanes of the general formulaR.sub.n Si(OCR.sub.2.sup.1 COZR).sub.4-nwhere R represents the same or different monovalent hydrocarbon radicals or substituted monovalent hydrocarbon radicals, R.sup.1 is hydrogen or the same as R, Z is oxygen or the group ##STR1## where R.sup.1 is the same as above, n is 0 or 1 and oligomers thereof. These silanes are prepared by reacting silanes of the general formulaR.sub.n SiX.sub.4-nwhere R and n are the same as above and X represents the same or different hydrolyzable atoms or condensable groups other than RCOCR.sub.2.sup.1 CO groups, with alpha-hydroxycarboxylic acid esters or amides. The silanes, which have at least three condensable groups per molecule, may be mixed with a diorganopolysiloxane containing terminal condensable groups and at least one additional substance to prepare compositions which are storage-stable under anhydrous conditions, but crosslink when exposed to moisture at room temperature to form elastomers.
    • 本发明涉及通式RnSi(OCR21COZR)4-n的硅烷,其中R表示相同或不同的一价烃基或取代的一价烃基,R 1为氢或与R相同,Z为氧或基团 其中R 1与上述相同,n为0或1,及其低聚物。 这些硅烷通过使通式为RnSiX4-n的硅烷与其中R和n与上述相同并且X代表与RCOCR21CO基以外的相同或不同的可水解原子或可缩合基团与α-羟基羧酸酯或酰胺反应来制备。 每分子具有至少三个可缩合基团的硅烷可以与含有末端可缩合基团的二有机聚硅氧烷和至少一种另外的物质混合以制备在无水条件下储存稳定但在室温下暴露于水分时交联的组合物 形成弹性体。