Process for preparing poly(urea-urethane)
    1.
    发明授权
    Process for preparing poly(urea-urethane) 有权
    制备聚(尿素 - 氨基甲酸酯)

    公开(公告)号:US06841646B2

    公开(公告)日:2005-01-11

    申请号:US10453649

    申请日:2003-06-04

    IPC分类号: C08G18/10 C08G18/61 C08G18/32

    摘要: A poly(urea-ureathane) based on polydimethyl siloxane is prepared by reacting an amino-terminated polydimethyl siloxane with polyisocyanate to form a prepolymer of poly(urea-urethane), and reacting the prepolymer and a chain extender in the presence of a catalyst. The resulting poly(urea-urethane) contains about 5-65 wt % of hard segments, and has a surface resistance of about 10-150 MΩ at high relative humidity, so that it can be used in anti-static electricity and electrostatic discharge shielding.

    摘要翻译: 通过使氨基封端的聚二甲基硅氧烷与多异氰酸酯反应以形成聚(脲 - 氨基甲酸酯)的预聚物,并在催化剂存在下使预聚物和扩链剂反应,制备基于聚二甲基硅氧烷的聚(脲 - 脲)。 所得的聚(尿素 - 氨基甲酸酯)含有约5-65重量%的硬链段,并且在高相对湿度下具有约10-150摩尔%的表面电阻,因此可用于抗静电和静电放电屏蔽 。

    Method for preparing a novolac phenolic resin/silica hybrid organic-inorganic nanocomposite
    2.
    发明授权
    Method for preparing a novolac phenolic resin/silica hybrid organic-inorganic nanocomposite 有权
    酚醛树脂/二氧化硅杂化有机 - 无机纳米复合材料的制备方法

    公开(公告)号:US07365135B2

    公开(公告)日:2008-04-29

    申请号:US10865825

    申请日:2004-06-14

    IPC分类号: C08G8/28

    摘要: The method of the present invention includes grafting a glycidyl alkylene trialkoxy silane to a novolac phenolic resin in an organic solvent to form a modified novolac phenolic resin; mixing a tetralkoxy silane, an acid and water with the resulting organic solution containing the modified novolac phenolic resin, wherein hydrolysis and condensation reactions are carried out to form a —Si—O—Si— bonding; adding a curing agent for novolac phenolic resin to the resulting reaction mixture; evaporating the organic solvent and acid from the resulting mixture and heating the resulting mixture to form a novolac phenolic resin/silica hybrid organic-inorganic nanocomposite.

    摘要翻译: 本发明的方法包括将缩水甘油基亚烷基三烷氧基硅烷接枝到有机溶剂中的酚醛清漆酚醛树脂上以形成改性的酚醛清漆酚醛树脂; 将四环烷基硅烷,酸和水与得到的含有改性酚醛清漆酚醛树脂的有机溶液混合,其中进行水解和缩合反应以形成-Si-O-Si键合; 向所得反应混合物中加入酚醛清漆酚醛树脂的固化剂; 从所得混合物中蒸发有机溶剂和酸,并加热所得混合物以形成酚醛清漆酚醛树脂/二氧化硅杂化有机 - 无机纳米复合材料。

    Method for preparing a novolac phenolic resin/silica hybrid organic-inorganic nanocomposite
    5.
    发明申请
    Method for preparing a novolac phenolic resin/silica hybrid organic-inorganic nanocomposite 有权
    酚醛树脂/二氧化硅杂化有机 - 无机纳米复合材料的制备方法

    公开(公告)号:US20050284087A1

    公开(公告)日:2005-12-29

    申请号:US10865825

    申请日:2004-06-14

    IPC分类号: E04B1/00

    摘要: The method of the present invention includes grafting a glycidyl alkylene trialkoxy silane to a novolac phenolic resin in an organic solvent to form a modified novolac phenolic resin; mixing a tetralkoxy silane, an acid and water with the resulting organic solution containing the modified novolac phenolic resin, wherein hydrolysis and condensation reactions are carried out to form a —Si—O—Si— bonding; adding a curing agent for novolac phenolic resin to the resulting reaction mixture; evaporating the organic solvent and acid from the resulting mixture and heating the resulting mixture to form a novolac phenolic resin/silica hybrid organic-inorganic nanocomposite.

    摘要翻译: 本发明的方法包括将缩水甘油基亚烷基三烷氧基硅烷接枝到有机溶剂中的酚醛清漆酚醛树脂上以形成改性的酚醛清漆酚醛树脂; 将四环烷基硅烷,酸和水与得到的含有改性酚醛清漆酚醛树脂的有机溶液混合,其中进行水解和缩合反应以形成-Si-O-Si键合; 向所得反应混合物中加入酚醛清漆酚醛树脂的固化剂; 从所得混合物中蒸发有机溶剂和酸,并加热所得混合物以形成酚醛清漆酚醛树脂/二氧化硅杂化有机 - 无机纳米复合材料。

    Method of preparing a hybrid of polyvinylimidazole and silica
    6.
    发明授权
    Method of preparing a hybrid of polyvinylimidazole and silica 有权
    制备聚乙烯基咪唑和二氧化硅杂化物的方法

    公开(公告)号:US06566456B1

    公开(公告)日:2003-05-20

    申请号:US09706067

    申请日:2000-11-03

    IPC分类号: C08F22600

    摘要: In the present invention, vinylimidazole and [3-(methacryloxy)propyl]trimethoxysilane are copolymerized to form a modified polyvinylimidazole, which then undergoes hydrolysis and condensation reactions with water and tetramethoxysilane to prepare a hybrid of polyvinylimidazole and silica. Experimental analyses show that covalent bondings exist between the modified polyvinylimidazole and silica in the hybrid.

    摘要翻译: 在本发明中,将乙烯基咪唑和[3-(甲基丙烯酰氧基)丙基]三甲氧基硅烷共聚以形成改性的聚乙烯基咪唑,然后与水和四甲氧基硅烷进行水解和缩合反应以制备聚乙烯基咪唑和二氧化硅的杂化物。 实验分析表明,混合物中改性聚乙烯咪唑和二氧化硅之间存在共价键。