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    • 6. 发明申请
    • PROCESS FOR PRODUCING POLYESTER RESINS
    • 生产聚酯树脂的方法
    • WO1989009794A2
    • 1989-10-19
    • PCT/EP1989000162
    • 1989-02-22
    • BASF LACKE + FARBEN AKTIENGESELLSCHAFTSADLOWSKI, JürgenDANGSCHAT, ManfredDIEFENBACH, HorstLASAR, TheoSCMITT, Dieter
    • BASF LACKE + FARBEN AKTIENGESELLSCHAFT
    • C08G63/22
    • C08G63/78
    • In a process for producing polyester and alkyde resins from bi- and/or higher functional carboxylic acids and/or their derivatives and from bi- and/or higher functional alcohols, the reaction is carried ont intermittently in stirred boiler reactors with rectifying columns. To improve the transport of the condensation products, an entrainer is introduced throughtout the reaction into the reaction mixture below the surface and uniformly distributed by a delivery device. In addition, the condensation reaction is carried out at an absolute pressure of 1.5 to 10 bar until the peak reaction rate is attained. The pressure is then reduced to atmospheric pressure at a gradient of -0.05 bar/h to -5 bar/h in a second reaction phase. The reaction is continued at standard pressure until the product exhibits the desired properties. The reaction temperature lies between 180 and 320 DEG C. This results in shorter processing times, and the products are accordingly subjected to lower thermal stresses and possess improved properties.
    • 在由双官能和/或更高官能的羧酸和/或其衍生物和双官能和/或高级官能醇生产聚酯和醇酸树脂的方法中,反应在具有精馏塔的搅拌锅炉反应器中间歇地进行。 为了改善冷凝产物的输送,将夹带剂通过反应引入到表面下方的反应混合物中,并通过输送装置均匀分布。 此外,缩合反应在绝对压力为1.5〜10巴下进行,直至达到峰值反应速度。 然后在第二反应阶段以-0.05巴/小时至-5巴/小时的梯度将压力降至大气压。 反应在标准压力下继续,直到产物显示所需的性质。 反应温度在180-320℃之间。这导致加工时间缩短,因此,产品具有较低的热应力,具有改进的性能。
    • 7. 发明申请
    • SOLUTION POLYMERIZED HALOGENATED POLYESTERS
    • 溶液聚合的氢化聚酯
    • WO1979000071A1
    • 1979-02-22
    • PCT/US1978000048
    • 1978-07-25
    • CELANESE CORP
    • CELANESE CORPSTACKMAN RSAKOWITZ MROSENTHAL A
    • C08G63/22
    • C08G63/81C08G63/6824
    • A process for preparing certain halogenated aromatic polyesters having a predetermined molecular weight is provided. Such polyesters are prepared by solution polymerization of an appropriate bisphenol and diacid halide wherein the diacid halide is added to a solution containing the bisphenol until the viscosity of the resulting polymer containing solution reaches a predetermined solution viscosity limit at which time the further addition of diacid halide is terminated. The solution limit is indicative of the attainment of said predetermined molecular weight. The identification of said solution viscosity limit is achieved by a feedback mechanism wherein the viscosity of the polymer containing solution is monitored or sensed during or after the addition of the diacid halide to the bisphenol containing solution.
    • 提供了制备具有预定分子量的某些卤代芳族聚酯的方法。 这种聚酯通过适当的双酚和二卤化物的溶液聚合制备,其中将二酸卤化物加入到含有双酚的溶液中,直到得到的含聚合物溶液的粘度达到预定的溶液粘度极限,此时进一步加入二酰卤 被终止。 溶液极限表示达到所述预定分子量。 所述溶液粘度极限的鉴定通过反馈机制来实现,其中在向含双酚的溶液中加入二酸卤化物期间或之后监测或感测含聚合物的溶液的粘度。