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    • 1. 发明公开
    • PROCEDE DE FABRICATION DE POLYAMIDES
    • 程序DE聚酰胺制造
    • EP1194474A1
    • 2002-04-10
    • EP00938898.4
    • 2000-06-08
    • RhodianylKayser, Dominique
    • THIERRY, Jean-FrançoisHELFT, Matthieu
    • C08G69/28C08G69/04
    • C08G69/28C08G69/04
    • The invention concerns a method for making polyamide. More particularly, the invention concerns a method for making polyamides derived from the reaction between a diacid and a diamine. It concerns a method for making a polyamide derived from the reaction of at least a diacid with at least a polyamide comprising the following steps: preparing a first mixture of diacid and diamine with a diacid/diamine molar ratio ranging between 0.8 and 0.995, preferably ranging between 0.95 and 0.99 in a first reactor (5); preparing a second mixture of diacid and diamine with a diacid/diamine molar ratio ranging between 1.005 and 1.2, preferably between 1.01 and 1.05, in a second reactor (4); introducing in melted form a first flow of the first mixture and a second flow of the second mixture in a stirred polymer reactor (7); drawing, preferably, continuously, from said reactor a flow of polyamide prepolymer; feeding said polyamide flow into a finishing step to obtain the desired degree of polymerisation. The invention is characterised in that the stoichiometry of the polyamide in the reactor (7) or the acid function/amine function ratios in the different reactors are measured by near infrared spectrometric analysis, and by controlling the feed flows in the different reactors using the results of said analyses.
    • 本发明涉及一种制造聚酰胺的方法。 更具体地说,本发明涉及由二酸和二胺之间的反应衍生的聚酰胺的制备方法。 它涉及一种制备由至少一种二酸与至少一种聚酰胺反应得到的聚酰胺的方法,该方法包括以下步骤:制备二酸与二胺的第一混合物,二酸与二胺的摩尔比为0.8-0.995,优选范围为 在第一反应器(5)中在0.95和0.99之间; 在第二反应器(4)中制备二酸和二胺的二酸/二胺摩尔比为1.005-1.2,优选1.01-1.05的第二混合物; 以熔化形式引入第一混合物流和第二混合物流在搅拌聚合物反应器(7)中; 优选连续地从所述反应器中拉伸聚酰胺预聚物流; 将所述聚酰胺流送入精加工步骤以获得所需的聚合度。 本发明的特征在于,反应器(7)中聚酰胺的化学计量或不同反应器中的酸官能/胺官能比通过近红外光谱分析测量,并且通过使用结果控制不同反应器中的进料流量 的分析。
    • 2. 发明申请
    • PROCEDE DISCONTINU DE FABRICATION D'UN POLYAMIDE
    • 制造聚酰胺的不连续方法
    • WO2003006529A1
    • 2003-01-23
    • PCT/FR2002/002422
    • 2002-07-10
    • RHODIANYLHELFT, MatthieuESTUR, Jean-FrançoisGAILLARD, Cécile
    • HELFT, MatthieuESTUR, Jean-FrançoisGAILLARD, Cécile
    • C08G69/28
    • B01J19/1881B01J19/1862B01J2219/00006B01J2219/00186C08G69/04C08G69/28
    • La présente invention concerne un procédé discontinu de fabrication d'un polyamide ô partir d'au moins un diacide et d'au moins une diamine. Ce procédé comprend les étapes essentielles suivantes :a) préparation d'un mélange liquide de diacide et de diamine avec un rapport molaire diacide /diamine > 1;b) ajustement de la st chiométrie en additionnant de la diamine dans le mélange liquide de diacide et de diamine, jusqu'ô ce que la différence (DGT= GTC - GTA) entre la quantité de groupements terminaux carboxyliques (GTC) et la quantité de groupements terminaux amines (GTA), exprimée en méq (ou en mmoles) / kg de polymère, soit ô une valeur de consigne prédéterminée, le flux d'addition de diamine étant asservi au moins ô la fin de l'addition au résultat d'une analyse du mélange de diacide et de diamine pour déterminer l'évolution de DGT dans le temps, c) polymérisation avec élimination d'eau jusqu'au degré de polymérisation désiré;avec la condition selon laquelle le mélange liquide de diacide/diamine, non polymérisé ou au moins partiellement polymérisé, est maintenu, dans les étapes a) et b), ô une température q suffisante pour maintenir le milieu ô l'état liquide et éviter toute solidification.
    • 本发明涉及从至少二​​酸和至少二胺制备聚酰胺的不连续方法。 所述方法包括以下基本步骤:a)制备二酸/二胺摩尔比> 1的二酸和二胺的液体混合物; b)通过在二酸和二胺的液体混合物中加入二胺来调节化学计量,直到羧酸末端基团(CTG)的量与胺末端基团(ATG)的量之间的差异(DELTA TG = CTG ATG)表示为 聚合物的meq(或mmoles)/ kg达到预定的设定值,二胺的额外输入至少在加入结束时进行二酸和二胺的混合物的分析,以确定DELTA TG在时间上的演变 ; c)用消除水进行聚合直到达到所需的聚合度; 条件是在步骤a)和b)中维持未聚合或至少部分聚合的液体二酸/二胺混合物,其温度足以使介质保持液态并避免任何固化。
    • 3. 发明授权
    • PROCEDE DE FABRICATION DE POLYAMIDES
    • EP1194474B1
    • 2004-01-21
    • EP00938898.4
    • 2000-06-08
    • Rhodianyl
    • THIERRY, Jean-FrançoisHELFT, Matthieu
    • C08G69/28C08G69/04
    • C08G69/28C08G69/04
    • The invention concerns a method for making polyamide. More particularly, the invention concerns a method for making polyamides derived from the reaction between a diacid and a diamine. It concerns a method for making a polyamide derived from the reaction of at least a diacid with at least a polyamide comprising the following steps: preparing a first mixture of diacid and diamine with a diacid/diamine molar ratio ranging between 0.8 and 0.995, preferably ranging between 0.95 and 0.99 in a first reactor (5); preparing a second mixture of diacid and diamine with a diacid/diamine molar ratio ranging between 1.005 and 1.2, preferably between 1.01 and 1.05, in a second reactor (4); introducing in melted form a first flow of the first mixture and a second flow of the second mixture in a stirred polymer reactor (7); drawing, preferably, continuously, from said reactor a flow of polyamide prepolymer; feeding said polyamide flow into a finishing step to obtain the desired degree of polymerisation. The invention is characterised in that the stoichiometry of the polyamide in the reactor (7) or the acid function/amine function ratios in the different reactors are measured by near infrared spectrometric analysis, and by controlling the feed flows in the different reactors using the results of said analyses.