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    Process for two-stage melt polymerization for the production of polybenzimidazole
    3.
    发明专利
    Process for two-stage melt polymerization for the production of polybenzimidazole 审中-公开
    用于生产聚苯并咪唑的两阶段熔融聚合方法

    公开(公告)号：JP2012031418A

    公开(公告)日：2012-02-16

    申请号：JP2011193864

    申请日：2011-09-06

    Applicant: Pbi Performance Products Inc ,  ピービーアイ・パフォーマンス・プロダクツ・インコーポレーテッド

    Inventor： DAWKINS BOBBY G ,  BAKER J DEAN ,  JOINER RITA H ,  HUDSON KARIN M

    IPC: C08G73/18

    CPC classification number: C08G73/18

    Abstract: PROBLEM TO BE SOLVED: To provide a process for two-stage melt polymerization for the production of high molecular weight polybenzimidazole.SOLUTION: The process comprises the steps of: heating reactants under agitation in an oxygen-free atmosphere until the agitator torque is from about 1.5 to about 6 times the torque before a rise in viscosity begins; terminating the agitation while continuing to heat the reaction mixture to a temperature of from 230 to 350°C while allowing the reaction mass to foam; cooling the reaction mass to a friable foamed mass; pulverizing the foamed mass to obtain a prepolymer; reheating the pulverized prepolymer to a temperature of from 230 to 350°C for a period of time between 15 minutes and 240 minutes then removing the pulverized prepolymer; pressure-washing the reaction vessel to obtain a wash mixture; separating excess water from the wash mixture to obtain a pulverized prepolymer; transferring the pulverized prepolymer and the wet prepolymer to a second reaction vessel; and heating the pulverized prepolymer and the wet pulverized prepolymer under a temperature between 315 to 400°C at atmospheric pressure for a time between 90 minutes and 400 minutes.

    Abstract translation: 要解决的问题：提供用于生产高分子量聚苯并咪唑的两阶段熔融聚合方法。 解决方案：该方法包括以下步骤：在无氧气氛中搅拌下加热反应物直到搅拌器扭矩在粘度上升开始之前约为扭矩的约1.5倍至约6倍; 在继续将反应混合物加热至230-350℃的温度同时使反应物质发泡的同时停止搅拌; 将反应物料冷却至脆性发泡体; 粉碎发泡体以获得预聚物; 将粉碎预聚物再加热至230-350℃的温度15分钟至240分钟之间的时间，然后除去粉碎的预聚物; 对反应容器进行加压洗涤以获得洗涤混合物; 从洗涤混合物中分离出多余的水以得到粉碎的预聚物; 将粉碎的预聚物和湿预聚物转移到第二反应容器中; 并在315〜400℃的温度下，在大气压下加热粉碎的预聚物和湿式粉碎预聚物，时间为90分钟至400分钟。 版权所有（C）2012，JPO＆INPIT

    PROCESS FOR THE PRODUCTION OF POLYBENZIMIDAZOLE FROM A TETRAMINOBIPHENYL AND AN ISOPHTHALIC ACID
    4.
    发明申请
    PROCESS FOR THE PRODUCTION OF POLYBENZIMIDAZOLE FROM A TETRAMINOBIPHENYL AND AN ISOPHTHALIC ACID 审中-公开
    由四氨基苯酚和邻苯二甲酸生产聚苯并咪唑的方法

    公开(公告)号：WO2008103604A2

    公开(公告)日：2008-08-28

    申请号：PCT/US2008054075

    申请日：2008-02-15

    Applicant: PBI PERFORMANCE PRODUCTS INC

    Inventor： DAWKINS BOBBY G ,  BAKER J DEAN

    IPC: C08G69/28

    CPC classification number: C08G73/18

    Abstract: A single-stage melt polymerization process is demonstrated for production of a polybenzimidazole which comprises the following steps. First, a high intensity reactor having a means for controlling agitation and rate of, atmosphere, and temperature is provided. Second, the high intensity reactor is degassed and filled with nitrogen. Third, a tetraminobiphenyl (TAB), compound A and an isophthalic acid (IPA), compound B are provided. Fourth, the high intensity reactor is charged with compounds A and B. Fifth, compound A and compound B are reacted under high intensity agitation in an absence of catalyst, to temperature of between 340°C to 430 °C to produce a polybenzimidazole having an IV of at least 0.45 and a plugging value of greater than or equal to 1.0 g/cm 2 .

    Abstract translation: 为了生产聚苯并咪唑，证明了一步熔融聚合方法，其包括以下步骤。 首先，提供具有用于控制搅拌和大气和温度的速率的装置的高强度反应器。 其次，将高强度反应器脱气并充入氮气。 第三，提供了四氨基联苯（TAB），化合物A和间苯二甲酸（IPA）化合物B. 第四，在高强度反应器中加入化合物A和B.第五，化合物A和化合物B在不存在催化剂的情况下在高强度搅拌下反应至340℃至430℃的温度以产生具有（甲基）丙烯酸的聚苯并咪唑 IV至少为0.45，并且堵塞值大于或等于1.0g / cm 2。

    A PROCESS FOR A CONTINUOUS POLYMERIZATION FOR THE PRODUCTION OF HIGH MOLECULAR WEIGHT POLYBENZIMIDAZOLE
    5.
    发明申请
    A PROCESS FOR A CONTINUOUS POLYMERIZATION FOR THE PRODUCTION OF HIGH MOLECULAR WEIGHT POLYBENZIMIDAZOLE 审中-公开
    连续聚合生产高分子量聚苯并咪唑的方法

    公开(公告)号：WO2006014213A3

    公开(公告)日：2006-11-23

    申请号：PCT/US2005020295

    申请日：2005-06-09

    Applicant: PBI PERFORMANCE PRODUCTS INC

    Inventor： DAWKINS BOBBY G ,  BAKER DEAN J ,  JOINER RITA H

    IPC: C08G69/42 ,  C08G69/26 ,  C08G75/00 ,  C08G79/02

    CPC classification number: C08G73/18

    Abstract: A process for a single-stage melt polymerization for the production of a high molecular weight polybenzimidazole which comprises the steps of: providing a reaction vessel having a means for agitation and a means for vacuum; charging the reaction vessel with reactants selected from: (A) a tetraaminiobiphenyl (TAB), and (B) a diphenyl isophthalate (DPIP); reacting the reactants under constant agitation and under a vacuum with an inert gas sweep; maintaining a reactant temperature which does not exceed 290°C under constant agitation allowing pressure in the vessel to increase, with an inert gas sweep until a phase change is achieved, when the temperature reaches 250°C pressure is increased to a slight positive pressure; and increase the reactant temperature and pressure within said reaction vessel while maintaining constant agitation and inert gas sweep, while maintaining a slight positive pressure. Preferably the vessel used in the instant invention is a high intensity reaction vessel.

    Abstract translation: 一种用于生产高分子量聚苯并咪唑的单级熔体聚合方法，包括以下步骤：提供具有搅拌装置和真空装置的反应容器; （A）四氨基联苯（TAB）和（B）间苯二甲酸二苯酯（DPIP）的反应物加入反应容器中; 使反应物在恒定搅拌和真空下与惰性气体吹扫反应; 在恒定搅拌下保持反应物温度不超过290℃，允许容器中的压力增加，用惰性气体吹扫直至达到相变，当温度达到250℃时，压力增加至轻微的正压; 并在保持恒定的搅拌和惰性气体吹扫的同时增加所述反应容器内的反应物温度和压力，同时保持轻微的正压。 优选地，用于本发明的容器是高强度反应容器。

    A PROCESS FOR A TWO STAGE MELT POLYMERIZATION FOR THE PRODUCTION OF POLYBENZIMIDAZOLE
    8.
    发明专利
    A PROCESS FOR A TWO STAGE MELT POLYMERIZATION FOR THE PRODUCTION OF POLYBENZIMIDAZOLE 未知

    公开(公告)号：CA2612722C

    公开(公告)日：2010-11-30

    申请号：CA2612722

    申请日：2006-06-13

    Applicant: PBI PERFORMANCE PRODUCTS INC

    Inventor： DAWKINS BOBBY G ,  BAKER J DEAN ,  JOINER RITA H ,  HUDSON KARIN M

    IPC: C08G73/18

    Abstract: The invention is a two-step process for the production of high molecular weight polybenzimidazole. Step one comprising: combining at least one aromatic hydrocarbon tetraamine and a dicarboxylic component; heating the reactants under agitation; terminating agitation while continuing heating to a step one temperature of about 230°C and allowing the reaction mass to foam; cooling the reaction mass to a friable foamed mass; crushing said mass to obtain a first pulverized prepolymer. Step two comprising: transferring said first prepolymer into a second reaction vessel; pressure washing of the first reaction vessel to obtain a second pulverized prepolymer; transferring the second ground prepolymer to the second reaction vessel; heating the first and second pulverized prepolymers under agitation to a temperature that is higher than step one temperature until the desired degree of polymerization is achieved.

    A PROCESS FOR A TWO STAGE MELT POLYMERIZATION FOR THE PRODUCTION OF POLYBENZIMIDAZOLE
    9.
    发明专利
    A PROCESS FOR A TWO STAGE MELT POLYMERIZATION FOR THE PRODUCTION OF POLYBENZIMIDAZOLE 未知

    公开(公告)号：CA2612722A1

    公开(公告)日：2007-01-18

    申请号：CA2612722

    申请日：2006-06-13

    Applicant: PBI PERFORMANCE PRODUCTS INC

    Inventor： DAWKINS BOBBY G ,  BAKER J DEAN ,  HUDSON KARIN M ,  JOINER RITA H

    IPC: C08G69/00

    Abstract: The invention is a two-step process for the production of high molecular weight polybenzimidazole. Step one comprising: combining at least one aromat ic hydrocarbon tetraamine and a dicarboxylic component; heating the reactants under agitation; terminating agitation while continuing heating to a step on e temperature of about 230 ~C and allowing the reaction mass to foam; cooling the reaction mass to a friable foamed mass; crushing said mass to obtain a first pulverized prepolymer. Step two comprising: transferring said first prepolymer into a second reaction vessel; pressure washing of the first reaction vessel to obtain a second pulverized prepolymer; transferring the second ground prepolymer to the second reaction vessel; heating the first an d second pulverized prepolymers under agitation to a temperature that is highe r than step one temperature until the desired degree of polymerization is achieved.

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