Method for preparing polyether polymers of predetermined molecular
    1.
    发明授权
    Method for preparing polyether polymers of predetermined molecular 有权
    制备预定分子的聚醚聚合物的方法

    公开(公告)号:US06265521B1

    公开(公告)日:2001-07-24

    申请号:US09632675

    申请日:2000-08-07

    IPC分类号: C08G7310

    CPC分类号: C08G73/12

    摘要: Polyether polymers such as polyetherimides are prepared by a two-step reaction. The first step is the reaction between an alkali metal salt of a dihydroxy-substituted aromatic hydrocarbon, such as bisphenol A disodium salt, and a substituted aromatic compound such as 1,3-bis[N-(4-chlorophthalimido)]benzene, the alkali metal salt being employed in an amount less than stoichiometric. The intermediate low molecular weight polymer thus produced then undergoes reaction with additional alkali metal salt. By this method, a polyether polymer of closely controlled molecular weight can be conveniently prepared.

    摘要翻译: 聚醚聚合物如聚醚酰亚胺通过两步反应制备。 第一步是二羟基取代的芳族烃如双酚A二钠盐的碱金属盐与1,3-双[N-(4-氯苯二酰亚氨基)]苯等取代的芳香族化合物的反应, 碱金属盐的用量小于化学计量。 由此制备的中间体低分子量聚合物随后与另外的碱金属盐反应。 通过这种方法,可以方便地制备密度受控分子量的聚醚聚合物。

    Slurry preparation of bis (halophthalimides) and of polyether polymers
    3.
    发明授权
    Slurry preparation of bis (halophthalimides) and of polyether polymers 失效
    双(卤代邻苯二酰亚胺)和聚醚聚合物的浆料制备

    公开(公告)号:US06235866B1

    公开(公告)日:2001-05-22

    申请号:US09413376

    申请日:1999-10-06

    IPC分类号: C08G802

    摘要: Bis(halophthalimides) such as, 3-bis[N-(4-chlorophthalimido)]benzene are prepared in slurry in an organic liquid such as o-dichlorobenzene or anisole, by a reaction at a temperature of at least 150° C. between at least one diamino compound, preferably an aromatic diamine such as m- or p-phenylenediamine, and at least one halophthalic anhydride such as 4-chlorophthalic anhydride, in the presence of an imidization catalyst such as sodium phenylphosphinate. The solids content of the reaction mixture is at least about 5% and preferably at least about 12% by weight. The product slurry may be employed directly in the preparation of polyetherimides, and similar slurries may be employed to prepare other polyether polymers.

    摘要翻译: 通过在至少150℃的温度下,在有机液体如邻二氯苯或苯甲醚中的浆料中制备双(卤代邻苯二酰亚胺)如3-双[N-(4-氯邻苯二甲酰亚氨基) 至少一种二氨基化合物,优选芳族二胺如间苯二胺或对苯二胺,以及至少一种卤代邻苯二甲酸酐如4-氯邻苯二甲酸酐在酰亚胺化催化剂如苯基次膦酸钠存在下进行。 反应混合物的固体含量为至少约5%,优选至少约12%重量。 产物浆料可以直接用于制备聚醚酰亚胺,并且可以使用类似的浆料来制备其它聚醚聚合物。

    Interfacial method of preparing ester-substituted diaryl carbonates
    5.
    发明授权
    Interfacial method of preparing ester-substituted diaryl carbonates 有权
    制备酯取代的碳酸二芳基酯的界面方法

    公开(公告)号:US06420588B1

    公开(公告)日:2002-07-16

    申请号:US09911440

    申请日:2001-07-24

    IPC分类号: C07C6996

    CPC分类号: C07C68/02 C07C69/96

    摘要: High yields of ester-substituted diary carbonates such as bis-methyl salicyl carbonate were obtained by the condensation of methyl salicylate with phosgene in the presence of a phase transfer catalyst (PTC) in an interfacial reaction system in which the pH of the aqueous phase was greater than 9.3. Using the method of the present invention conversions of greater than 99% were obtained whereas under standard conditions using triethylamine as the catalyst conversions were limited to 70-75% of the methyl salicylate starting material even with a 20 mole % excess of added phosgene. The optimized conditions of the of the present invention use only a slight excess of phosgene and represent an attractive route for the manufacture of bis methyl salicyl carbonate and ester-substituted diaryl carbonates generally.

    摘要翻译: 通过在界面反应体系中存在相转移催化剂(PTC)的情况下,通过水杨酸甲酯与光气的缩合得到高产率的酯取代的二元碳酸酯,其中水相的pH为 大于9.3。 使用本发明的方法获得大于99%的转化率,而在使用三乙胺的标准条件下,即使使用20摩尔%过量的加入的光气,催化剂转化率也限于水杨酸甲酯起始原料的70-75%。 本发明的优化条件仅使用轻微过量的光气,并且代表通常用于制造碳酸双甲基水杨酸酯和酯取代的二芳基碳酸酯的有吸引力的途径。

    Tin free silyl-terminated polymers
    7.
    发明授权
    Tin free silyl-terminated polymers 有权
    无锡甲硅烷基封端的聚合物

    公开(公告)号:US08877885B2

    公开(公告)日:2014-11-04

    申请号:US13704162

    申请日:2011-06-29

    IPC分类号: C08G18/20

    摘要: Embodiments of the invention provide for methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule. The method comprises providing a polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, adding to the polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction to form a composition comprising hydrosilylated polyoxyalkylene polymers, reacting the hydrosilylated polyoxyalkylene polymers with at least one isocyanate in the presence of a first tin-free catalyst to form an isocyanate reacted hydrosilylated polymer, and optionally reacting the isocyanate reacted hydrosilylated polymer with a polyol having a nominal functionality of at least 2 to form a polyol reacted crosslinkable silane-terminated polymer.

    摘要翻译: 本发明的实施方案提供了制备包含在每个分子中具有至少一个可交联甲硅烷基的可交联的硅烷端基聚合物的组合物的方法。 该方法包括在每个分子中提供具有至少一个不饱和基团和至少一个醇羟基的聚合物,向该聚合物中加入每个分子中具有氢 - 硅键和交联性甲硅烷基的化合物和氢化硅烷化催化剂从而携带 进行氢化硅烷化反应以形成包含氢化硅烷化聚氧化烯聚合物的组合物,在第一无锡催化剂存在下使氢化硅烷化聚氧化烯聚合物与至少一种异氰酸酯反应,以形成异氰酸酯反应的氢化硅烷化聚合物,以及任选地使异氰酸酯反应的硅烷化聚合物与 具有至少2的标称官能度的多元醇以形成多元醇反应的可交联的硅烷封端的聚合物。