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    • 7. 发明授权
    • Production apparatus for polybutylene terephthalate
    • 聚对苯二甲酸丁二酯生产设备
    • US07204962B2
    • 2007-04-17
    • US09790539
    • 2001-02-23
    • Hidekazu NakamotoSusumu HaradaNorifumi MaedaShuji Yamaguchi
    • Hidekazu NakamotoSusumu HaradaNorifumi MaedaShuji Yamaguchi
    • B01J19/08C08G85/00
    • C08G63/78C08G63/183C08G63/785
    • Polybutylene terephthalate having good heat stability and excellent hydrolysis resistance is continuously produced in a series of a first reactor for reacting an aromatic dicarboxylic acid comprising terephthalic acid as a main ingredient or a derivative thereof with a glycol comprising 1,4-butanediol as a main ingredient, thereby producing an oligomer with an average degree of polymerization of 2.2 to 5, a second reactor for polycondensating the oligomer from the first reactor, thereby preparing a low polymerization product with an average degree of polymerization of 25 to 40, and a third reactor for further polycondensating the low polymerization product from the second reactor, thereby producing a high molecular weight polyester with an average degree of polymerization of 70 to 130, or followed by a fourth reactor for further polycondensing the polyester from the third reactor to an average degree of polymerization of 150 to 200, thereby producing a high molecular weight polyester. Another third reactor or a plurality of third reactors can be provided in parallel to the third reactor, thereby producing different kinds of polybutylene phthalate with different degrees of polymerization from that produced in the main line of the third and fourth reactors or adjusting operating conditions of each of a plurality of the third reactors to increase kinds, precise quality.
    • 将包含对苯二甲酸或其衍生物的芳族二羧酸与以1,4-丁二醇为主要成分的二醇反应的第一反应器中连续生产具有良好热稳定性和优异耐水解性的聚对苯二甲酸丁二醇酯 ,由此制备平均聚合度为2.2〜5的低聚物,第二反应器,其使来自第一反应器的低聚物缩聚,由此制备平均聚合度低的聚合产物为25〜40,第三反应器为 使来自第二反应器的低聚合产物进一步缩聚,从而制备平均聚合度为70至130的高分子量聚酯,或随后是用于将聚酯从第三反应器进一步缩聚至平均聚合度的第四反应器 为150〜200,由此制造高分子量聚酯。 可以与第三反应器平行地提供另外的第三反应器或多个第三反应器,从而产生与在第三和第四反应器的主管线中产生的不同聚合度的不同种类的聚对苯二甲酸丁二酯,或者调节每个反应器的操作条件 的多个第三反应堆,以增加种类,精确的质量。
    • 9. 发明申请
    • Heat insulating acoustical structure and carbody shell structure using the same
    • 绝热声学结构和车体外壳结构使用相同
    • US20060175126A1
    • 2006-08-10
    • US11349085
    • 2006-02-08
    • Hidekazu NakamotoSeijiro TodoriTakeshi Kawasaki
    • Hidekazu NakamotoSeijiro TodoriTakeshi Kawasaki
    • E04B1/82F02B77/13
    • B61D17/185
    • To obtain a wide passenger compartment space, the thickness of a heat insulating acoustical layer is reduced, and for this purpose, a comfortable in-car environment is obtained by using a vacuum insulating panel which combines high heat insulating performance and sound insulating performance. A heat insulating acoustical layer 20 is formed on one surface of a lightweight alloy structure 10 of double skin construction by using a vacuum insulating panel 21 as a middle member and sandwiching two surfaces of the panel with elastic sound absorbing materials 22, 23 made of a nonwoven fabric or a foamed body, and the heat insulating acoustical layer is covered with an interior material 24. Owing to this construction, the transmission loss of a noise which transmits from the double skin structure side is improved by the mutual actions of the elasticity of the sound absorbing material and the rigidity of the vacuum heat insulating panel.
    • 为了获得宽的乘客舱空间,绝热声层的厚度减小,为此,通过使用结合了高隔热性能和隔音性能的真空绝热板获得舒适的车内环境。 通过使用真空绝热板21作为中间构件将双层皮结构的轻质合金结构10的一个表面上形成隔热声层20,并将面板的两个表面与弹性吸音材料22,23夹在一起 无纺布或发泡体,绝热声层被内部材料24覆盖。由于这种结构,由双层结构侧透过的噪音的传输损失由于弹性的相互作用而提高, 吸音材料和真空隔热板的刚性。