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1.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
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
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公开(公告)号：WO2012102923A3
公开(公告)日：2012-11-29
申请号：PCT/US2012021691
申请日：2012-01-18
Applicant: PBI PERFORMANCE PRODUCTS INC
Inventor： HOPKINS JOHN B JR , HUDSON KARIN M , COPELAND GREGORY S , GRUENDER MICHAEL
CPC classification number: C08J9/00 , C08J3/096 , C08J3/097 , C08J3/11 , C08J9/28 , C08J2201/0542 , C08J2205/04 , C08J2379/04 , Y10T428/2982
Abstract: A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution.
Abstract translation: 公开了一种多孔聚苯并咪唑（PBI）颗粒树脂。 这种树脂很容易在环境温度和压力下溶解。 该树脂通过以下方法制备：将原始PBI树脂溶解在高极性溶剂中; 将溶解的PBI沉淀在浴中; 并干燥沉淀的PBI，干燥的沉淀的PBI是多孔的。 多孔PBI树脂可通过以下方式溶解：在环境温度和压力下将多孔PBI树脂与高度极性溶剂混合以形成溶液。
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Patent Agency Ranking
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.
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公开(公告)号：DK1904555T3
公开(公告)日：2016-11-21
申请号：DK06773051
申请日：2006-06-13
Applicant: PBI PERFORMANCE PRODUCTS INC
Inventor： DAWKINS BOBBY G , BAKER J DEAN , JOINER RITA H , HUDSON KARIN M
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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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公开(公告)号：WO2012102923A8
公开(公告)日：2012-09-07
申请号：PCT/US2012021691
申请日：2012-01-18
Applicant: PBI PERFORMANCE PRODUCTS INC
Inventor： HOPKINS JOHN B JR , HUDSON KARIN M , COPELAND GREGORY S , GRUENDER MICHAEL
CPC classification number: C08J9/00 , C08J3/096 , C08J3/097 , C08J3/11 , C08J9/28 , C08J2201/0542 , C08J2205/04 , C08J2379/04 , Y10T428/2982
Abstract: A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution.
Abstract translation: 公开了一种多孔聚苯并咪唑（PBI）颗粒树脂。 该树脂在环境温度和压力下容易溶解。 树脂通过以下方法制备：将未处理的PBI树脂溶解在高极性溶剂中; 将溶解的PBI沉淀在浴中; 并干燥沉淀的PBI，干燥的沉淀PBI是多孔的。 可以通过在环境温度和压力下将多孔PBI树脂与高极性溶剂混合以形成溶液来溶解多孔PBI树脂。
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7.发明公开
公开(公告)号：EP1904555A4
公开(公告)日：2011-12-07
申请号：EP06773051
申请日：2006-06-13
Applicant: PBI PERFORMANCE PRODUCTS INC
Inventor： DAWKINS BOBBY G , BAKER J DEAN , JOINER RITA H , HUDSON KARIN M
CPC classification number: C08G73/18
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