Solvent systems for low dielectric constant polymeric materials
    3.
    发明授权
    Solvent systems for low dielectric constant polymeric materials 失效
    低介电常数聚合物材料的溶剂体系

    公开(公告)号:US06291628B1

    公开(公告)日:2001-09-18

    申请号:US09235141

    申请日:1999-01-21

    IPC分类号: C08G7902

    摘要: A polymeric low dielectric constant solution includes a low dielectric constant polymer dissolved in an aromatic aliphatic ether solvent. The polymer preferably is a poly(arylene ether) and the solvent preferably is anisole, methylanisole, phenetole or mixtures thereof. A process for forming a dielectric film on a substrate by spin-coating the polymeric solution is also provided.

    摘要翻译: 聚合物低介电常数溶液包括溶解在芳族脂族醚溶剂中的低介电常数聚合物。 聚合物优选为聚(亚芳基醚),溶剂优选为苯甲醚,甲基苯甲醚,苯乙醚或其混合物。 还提供了通过旋涂聚合物溶液在基底上形成电介质膜的方法。

    Method for making ethynylated aromatic compounds
    4.
    发明授权
    Method for making ethynylated aromatic compounds 失效
    制备乙炔化芳族化合物的方法

    公开(公告)号:US4782184A

    公开(公告)日:1988-11-01

    申请号:US683951

    申请日:1984-12-19

    摘要: A method is disclosed for making amino-substituted ethynlated biphenyl compounds, which includes selectively nitrating symmetrically substituted biphenyl compounds, reacting the resulting nitro-substituted aromatic compound with a copper acetylide to replace the iodo substituents with ethynyl groups, and then reacting the ethynylated, nitro-substituted aromatic compound with hydrogen in the gas phase to reduce the nitro groups to amino groups. The preferred nitrating agent is nitronium trifluoromethanesulfonate, made by reaction of anhydrous nitric acid with trifluoromethanesulfonic anhydride in an anhydrous solvent.

    摘要翻译: 公开了制备氨基取代的乙炔化联苯化合物的方法,其包括选择性硝化对称取代的联苯化合物,使得到的硝基取代的芳族化合物与乙炔化铜反应,以乙炔基代替碘取代基,然后使乙炔化的硝基 - 取代的芳族化合物与氢气在气相中以将硝基还原成氨基。 优选的硝化剂是硝酸三氟甲磺酸盐,由无水硝酸与三氟甲磺酸酐在无水溶剂中反应制得。

    Diethynylated diphenyl hexafluoropropanes
    5.
    发明授权
    Diethynylated diphenyl hexafluoropropanes 失效
    二乙氧基二苯基六氟丙烷

    公开(公告)号:US4814472A

    公开(公告)日:1989-03-21

    申请号:US466271

    申请日:1985-02-14

    摘要: There are disclosed diethynylated diphenyl hexafluoropropane compounds, which are suitable for forming copolymers and carbon-carbon composites. These compounds are prepared in high yields by first providing a dihalogenated diphenyl hexafluoropropane compound, coupling the dihalogenated compound with ethynyltrimethylsilane in the presence of an organometallic catalyst to form a silylated ethynyl terminated diphenyl substituted compound and subsequently desilylating the compound to form the desired diethynylated diphenyl hexafluoropropane compound.

    摘要翻译: 公开了二异戊基化二苯基六氟丙烷化合物,其适于形成共聚物和碳 - 碳复合材料。 通过首先提供二卤代二苯基六氟丙烷化合物,在有机金属催化剂的存在下将二卤代化合物与乙炔基三甲基硅烷偶联以形成甲硅烷基化的乙炔基封端的二苯基取代的化合物,随后使该化合物脱甲硅烷化以形成所需的二异丙基二苯基六氟丙烷 复合。

    Method for making ethynylated aromatic compounds and a method for making
nitronium trifluoromethanesulfonate
    8.
    发明授权
    Method for making ethynylated aromatic compounds and a method for making nitronium trifluoromethanesulfonate 失效
    制备乙炔化芳族化合物的方法和制备硝基三氟甲磺酸盐的方法

    公开(公告)号:US4615842A

    公开(公告)日:1986-10-07

    申请号:US779604

    申请日:1985-09-23

    CPC分类号: C07C303/32

    摘要: A method is disclosed for making amino-substituted ethynylated biphenyl compounds, which includes selectively nitrating symmetrically substituted biphenyl compounds, reacting the resulting nitro-substituted aromatic compound with a copper acetylide to replace the iodo substituents with ethynyl groups, and then reacting the ethynylated, nitro-substituted aromatic compound with hydrogen in the gas phase to reduce the nitro groups to amino groups. The preferred nitrating agent is nitronium trifluoromethanesulfonate, made by reaction of anhydrous nitric acid with trifluoromethanesulfonic anhydride in an anhydrous solvent.

    摘要翻译: 公开了制备氨基取代的乙炔化联苯化合物的方法,其包括选择性硝化对称取代的联苯化合物,使得到的硝基取代的芳族化合物与乙炔化铜反应,以乙炔基代替碘取代基,然后使乙炔化的硝基 - 取代的芳族化合物与氢气在气相中以将硝基还原成氨基。 优选的硝化剂是硝酸三氟甲磺酸盐,由无水硝酸与三氟甲磺酸酐在无水溶剂中反应制得。

    Substituted aromatic silane compounds and method for preparation of same
    10.
    发明授权
    Substituted aromatic silane compounds and method for preparation of same 失效
    取代的芳族硅烷化合物及其制备方法

    公开(公告)号:US4916038A

    公开(公告)日:1990-04-10

    申请号:US237816

    申请日:1988-08-29

    摘要: A new group of silane compounds in which silicon atoms are linked together by a hydrocarbon chain and which comprise phenyl groups substituted with an epoxy group or an ethenyl group. The compounds of the present invention have the formula ##STR1## where R.sub.1 is selected from the group consisting of: (a) an aliphatic hydrocarbon group containing 2 to 10 carbon atoms, and(b) a group having the formula ##STR2## where n=1 to 3m=0 to 5;R.sub.2 and R.sub.2 ' are each selected from the group consisting of an alkyl group containing 1 to 4 carbon atoms, an unsubstituted aryl group, and a substituted aryl group; and R.sub.3 is selected from the group consisting of: ##STR3## where R.sub.4, R.sub.5, and R.sub.6 ae each selected from the group consisting of H, an alkyl group containing 1 to 4 carbon atoms, and an aryl group; and n=0 to 10.

    摘要翻译: 一组新的硅烷化合物,其中硅原子通过烃链连接在一起并且包含被环氧基或乙烯基取代的苯基。 本发明的化合物具有式(IMAGE),其中R 1选自:(a)含有2至10个碳原子的脂族烃基,和(b)具有下式的基团:其中n = 1〜3m = 0〜5; R2和R2'各自选自含有1至4个碳原子的烷基,未取代的芳基和取代的芳基; 并且R 3选自:其中R 4,R 5和R 6各自选自H,含有1至4个碳原子的烷基和芳基组成的组。 n = 0〜10。