Interfacial method of preparing ester-substituted diaryl carbonates
    2.
    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。

    Solventless preparation of ester-substituted diaryl carbonates
    4.
    发明授权
    Solventless preparation of ester-substituted diaryl carbonates 有权
    酯取代的碳酸二芳基酯的无溶剂制备

    公开(公告)号:US06891015B2

    公开(公告)日:2005-05-10

    申请号:US10216512

    申请日:2002-08-12

    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 ester-substituted phenols with phosgene in the presence of a phase transfer catalyst (PTC) and optionally a tertiary amine catalyst in a solvent free reaction system comprising an aqueous phase held at a pH of 8.3 or higher. The optimized conditions of the present invention use an excess of ester-substituted phenol relative to phosgene and high conversion of phosgene to ester-substituted diaryl carbonate is observed. The product ester-substituted diaryl carbonate may be conveniently isolated as a solid by filtration or as a liquid in which the excess ester-substituted phenols serves as solvent. The method represents an attractive route for the manufacture of bis methyl salicyl carbonate and ester-substituted diaryl carbonates generally. The ester-substituted diaryl carbonates are useful for the preparation and modification of polycarbonates.

    摘要翻译: 通过在相转移催化剂(PTC)和任选的叔胺催化剂存在下,在无溶剂反应体系中,酯取代的酚与光气的缩合得到高收率的酯取代的二元碳酸酯,例如碳酸双甲基水杨酸酯 包含保持在8.3或更高的pH的水相。 本发明的优化条件相对于光气使用过量的酯取代的苯酚,观察到光气转化为酯取代的碳酸二芳基酯的高转化率。 产物酯取代的碳酸二芳基酯可以通过过滤或作为其中过量的酯取代的酚用作溶剂的液体方便地分离为固体。 该方法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。 酯取代的碳酸二芳基酯可用于聚碳酸酯的制备和改性。

    Solventless preparation of ester-substituted diaryl carbonates
    5.
    发明授权
    Solventless preparation of ester-substituted diaryl carbonates 有权
    酯取代的碳酸二芳基酯的无溶剂制备

    公开(公告)号:US06469192B1

    公开(公告)日:2002-10-22

    申请号:US09911527

    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 ester-substituted phenols with phosgene in the presence of a phase transfer catalyst (PTC) and optionally a tertiary amine catalyst in a solvent free reaction system comprising an aqueous phase held at a pH of 8.3 or higher. The optimized conditions of the present invention use an excess of ester-substituted phenol relative to phosgene and high conversion of phosgene to ester-substituted diaryl carbonate is observed. The product ester-substituted diaryl carbonate may be conveniently isolated as a solid by filtration or as a liquid in which the excess ester-substituted phenols serves as solvent. The method represents an attractive route for the manufacture of bis methyl salicyl carbonate and ester-substituted diaryl carbonates generally.

    摘要翻译: 通过在相转移催化剂(PTC)和任选的叔胺催化剂存在下,在无溶剂反应体系中,酯取代的酚与光气的缩合得到高收率的酯取代的二元碳酸酯,例如碳酸双甲基水杨酸酯 包含保持在8.3或更高的pH的水相。 本发明的优化条件相对于光气使用过量的酯取代的苯酚,观察到光气转化为酯取代的碳酸二芳基酯的高转化率。 产物酯取代的碳酸二芳基酯可以通过过滤或作为其中过量的酯取代的酚用作溶剂的液体方便地分离为固体。 该方法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。

    Method for preparing polyether polymers of predetermined molecular
    7.
    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。

    Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate
    8.
    发明授权
    Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate 失效
    低温制备聚碳酸酯低聚物混合物制造聚碳酸酯的方法

    公开(公告)号:US07041775B2

    公开(公告)日:2006-05-09

    申请号:US10830163

    申请日:2004-04-21

    IPC分类号: C08G64/00

    摘要: The present invention provides a method of making polycarbonate oligomers, polycarbonate, molded articles formed from polycarbonate, and an apparatus for making polycarbonate. An oligomer mixture is first prepared by the steps of providing an equilibration system comprising a vessel, a reaction mixture contained within the vessel, and means for mixing the reaction mixture contained within the vessel wherein the reaction mixture comprises a melted activated diaryl carbonate composition, and a catalyst present in sufficient amount to initiate an oligomerization reaction between a dihydroxy composition and the activated diaryl carbonate to form polycarbonate oligomers. The method further includes the steps of introducing a melted dihydroxy composition to the reaction mixture contained within the equilibration system, maintaining the reaction mixture contained within the vessel at an oligomerization temperature, said oligomerization temperature being below the melting point the dihydroxy composition, and sufficiently high to allow formation of a homogeneous melt within the vessel, and continuously drawing off a product stream from the equilibration system, wherein the product stream comprises a polycarbonate oligomer mixture. This polycarbonate oligomer mixture is suitably used as a feed stock for producing polycarbonate in a polycondensation system. The polycarbonate is suitably used for the preparation of molded articles.

    摘要翻译: 本发明提供一种制备聚碳酸酯低聚物,聚碳酸酯,由聚碳酸酯形成的模制品的方法和用于制备聚碳酸酯的装置。 首先通过以下步骤制备低聚物混合物,所述步骤包括提供包含容器,容器内的反应混合物的平衡系统和用于混合包含在容器内的反应混合物的装置,其中反应混合物包含熔融的活化碳酸二芳基酯组合物和 存在足够量的催化剂以引发二羟基组合物和活化的碳酸二芳基酯之间的低聚反应以形成聚碳酸酯低聚物。 该方法还包括以下步骤:将熔融的二羟基组合物引入平衡系统中包含的反应混合物中,将容器内的反应混合物保持在低聚温度,所述低聚温度低于二羟基组合物的熔点,并且足够高 以允许在容器内形成均匀的熔体,并且从平衡系统连续地抽出产物流,其中产物流包含聚碳酸酯低聚物混合物。 该聚碳酸酯低聚物混合物适合用作在缩聚体系中制造聚碳酸酯的原料。 聚碳酸酯适合用于制备模塑制品。

    Tin free silyl-terminated polymers
    10.
    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。