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    • 11. 发明授权
    • Process for preparing polyamides
    • 制备聚酰胺的方法
    • US09315626B2
    • 2016-04-19
    • US13514364
    • 2010-12-03
    • Faissal-Ali El-ToufailiPhilippe DesboisAndreas WollnySven LawrenzChristian Schmidt
    • Faissal-Ali El-ToufailiPhilippe DesboisAndreas WollnySven LawrenzChristian Schmidt
    • C08G69/24C08G69/26C08G69/28
    • C08G69/265C08G69/28
    • The present invention relates to a process for preparing a polyamide based on dicarboxylic acids and diamines, comprising the following stages: A) providing an aqueous monomer mixture composed of dicarboxylic acids and diamines, where the molar ratio of dicarboxylic acids to diamines is adjusted such that, at the outlet of stage C), there is a molar deficiency of dicarboxylic acids or diamines of 1 to 10 mol %, based on the respective other component, B) transferring the aqueous mixture from stage A) into a continuous evaporator reactor in which diamines and dicarboxylic acids are converted at a temperature in the range from 100 to 370° C. and a pressure in the range from 1 to 50 bar, C) transferring the mixture from stage B) into a separator which is operated at a temperature in the range from 100 to 370° C. and a pressure in the range from 1 to 50 bar with removal of gaseous components, D) transferring the mixture from stage C) together with diamine or dicarboxylic acid in an amount suitable for compensation for the molar deficiency into a tubular reactor which is operated at a temperature in the range from 100 to 370° C. and a pressure in the range from 1 to 50 bar, for a residence time in the range from 10 seconds to 30 minutes, E) transferring the mixture from stage D) into an extruder which is operated at a temperature in the range from 150 to 400° C. for a residence time in the range from 10 seconds to 30 minutes with removal of gaseous components through venting orifices.
    • 本发明涉及一种制备基于二羧酸和二胺的聚酰胺的方法,其包括以下步骤:A)提供由二羧酸和二胺组成的含水单体混合物,其中二羧酸与二胺的摩尔比被调整为使得 ,在阶段C)的出口处,基于各自的其它组分,存在摩尔不足的二羧酸或二胺的1至10摩尔%,B)将水性混合物从阶段A)转移到连续的蒸发器反应器中,其中 二胺和二羧酸在100至370℃的温度和1至50巴的压力范围内转化,C)将混合物从阶段B)转移到分离器中,该分离器在 范围为100至370℃,压力范围为1至50巴,除去气态组分,D)将混合物从阶段C)与二胺或二羧酸一起转移 t适用于将摩尔不足补偿为在100至370℃的温度和1至50巴的压力范围内操作的管式反应器中,停留时间为10秒 至30分钟,E)将混合物从阶段D)转移到挤出机中,该挤出机在150-400℃的温度下操作,停留时间为10秒至30分钟,同时除去气体组分 通过通风口。
    • 13. 发明授权
    • Method for producing polyamides
    • 生产聚酰胺的方法
    • US08759476B2
    • 2014-06-24
    • US12665564
    • 2008-06-12
    • Philippe DesboisHagen StawitzkiRalf NeuhausHans-Joachim WeisJurgen WeichmannRacquel Fernandez RodilesGunter Vogel
    • Philippe DesboisHagen StawitzkiRalf NeuhausHans-Joachim WeisJurgen WeichmannRacquel Fernandez RodilesGunter Vogel
    • C08G69/26
    • C08G69/26C08G69/265C08G69/28
    • The process for preparing a polyamide based on dicarboxylic acids and diamines has the following stages: 1) providing an aqueous monomer mixture of dicarboxylic acids and diamines, the molar ratio of dicarboxylic acids to diamines being adjusted such that a molar deficiency of dicarboxylic acids or diamines of from 1 to 10 mol % is present at the outlet of stage 3), based on the other component in each case, 2) transferring the aqueous mixture from stage 1) to a continuous evaporator reactor in which diamines and dicarboxylic acids are reacted at a temperature in the range from 100 to 370° C. and a pressure in the range from 1 to 50 bar, 3) transferring the mixture from stage 2) to a separator which is operated at a temperature in the range from 100 to 370° C. with removal of gaseous components, 4) transferring the mixture from stage 3) together with diamine or dicarboxylic acid in an amount suitable to balance out the molar deficiency into an extruder which is operated at a temperature in the range from 150 to 400° C. for a residence time in the range from 10 seconds to 30 minutes to remove gaseous components through devolatilizing orifices.
    • 基于二羧酸和二胺制备聚酰胺的方法具有以下阶段:1)提供二羧酸和二胺的单体混合物,二羧酸与二胺的摩尔比被调节,使得二羧酸或二胺的摩尔不足 在阶段3)的出口处存在1至10摩尔%,基于每种情况下的其它组分,2)将水性混合物从阶段1)转移到连续的蒸发器反应器中,其中二胺和二羧酸在 温度范围为100至370℃,压力范围为1至50巴,3)将混合物从阶段2转移至分离器,该分离器的运行温度范围为100至370℃ C.去除气体组分,4)将来自级3)的混合物与二胺或二羧酸一起转移,其量适合于将摩尔不足量平衡到在温度下操作的挤出机 在150至400℃的范围内,停留时间在10秒至30分钟的范围内,以通过脱挥发泡孔除去气体组分。
    • 16. 发明申请
    • SEMI-AROMATIC, SEMI-CRYSTALLINE COPOLYAMIDES
    • 半自动,半结晶共聚酰胺
    • US20120245283A1
    • 2012-09-27
    • US13514445
    • 2010-12-07
    • Philippe DesboisAndreas Wollny
    • Philippe DesboisAndreas Wollny
    • C08L77/10
    • C08G69/265C08G69/26C08L77/06
    • Semiaromatic, semicrystalline copolyamide molding compositions, comprisingA) from 35 to 100% by weight of a copolyamide composed of a1) from 35 to 69% by weight of units which derive from hexamethylenediamine and from an aromatic dicarboxylic acid having from 8 to 16 carbon atoms, a2) from 31 to 65% by weight of units which derive from 3,3′-dimethyl-4,4′-diaminodicyclohexylmethane and from terephthalic acid, a3) from 0 to 30% by weight of units of a semicrystalline polyamide different from a1) and a2), B) from 0 to 65% by weight of further additives, where the total of the percentages by weight of A) and B) is 100%.
    • 半芳族半结晶共聚酰胺模塑组合物,其包含A)35-100%重量的共聚酰胺,该共聚酰胺由a1- 35-69%(重量)衍生自六亚甲基二胺的单元和具有8至16个碳原子的芳族二羧酸组成 ,a2)31至65重量%的衍生自3,3'-二甲基-4,4'-二氨基二环己基甲烷和来自对苯二甲酸的单元,a3)0至30重量%的半结晶聚酰胺单元不同于 a1)和a2),B)0至65重量%的其它添加剂,其中A)和B)的重量百分比的总和为100%。