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    • 2. 发明授权
    • Semi-aromatic polyamide and a method for preparation with low wastewater discharge
    • 半芳族聚酰胺和低排放废水的制备方法
    • US08420772B2
    • 2013-04-16
    • US12743452
    • 2008-07-11
    • Min CaoShiyong XiaXianbo HuangTongmin CaiXiangbin Zeng
    • Min CaoShiyong XiaXianbo HuangTongmin CaiXiangbin Zeng
    • C08G69/26
    • C08G69/26C08G69/265C08G69/28C08G69/30C08J11/02C08L77/06
    • The present invention relates to a semi-aromatic polyamide and a method for preparing it with low wastewater discharge. The semi-aromatic polyamide for the present invention is obtained by introducing aromatic dicarboxylic acid, aliphatic diamine containing 4˜14 carbon atoms and the wastewater generated during the previous prepolymerization into an autoclave for prepolymerization reaction and then further polymerizing the prepolymer. In this preparation method, the wastewater generated during polymerization is recycled, thus greatly reducing the wastewater discharge; the raw materials in the wastewater are effectively recycled, thus improving the utilization rate of raw materials; meanwhile, the diamine in the wastewater compensates that lost along with water discharge during prepolymerization, thus ensuring the Mole ratio balance between dicarboxylic acid monomer and diamine monomer.
    • 本发明涉及一种半芳族聚酰胺及其制备方法,废水排放量低。 本发明的半芳族聚酰胺通过将芳香族二羧酸,含有4〜14个碳原子的脂族二胺和前述预聚合中产生的废水引入高压釜中进行预聚合反应,然后进一步聚合预聚物而得到。 在这种制备方法中,聚合过程中产生的废水回收利用,大大减少了废水排放; 废水中的原料被有效回收,从而提高了原料的利用率; 同时,废水中的二胺补偿了预聚合过程中随着排水的流失,保证了二元羧酸单体与二胺单体之间的摩尔比平衡。
    • 3. 发明申请
    • METHOD FOR PREPARING TERPOLYMER OF POLY (DIPHENYL ETHER SULFONE) AND POLY (DIPHENYL SULFONE)
    • 制备聚(二苯醚磺酰)和聚(二苯基硫醚)的多元醇的方法
    • US20120208977A1
    • 2012-08-16
    • US13504064
    • 2010-12-10
    • Zhongwen WuRongtang MaXiangbin Zeng
    • Zhongwen WuRongtang MaXiangbin Zeng
    • C08G75/20
    • C08G75/23
    • A method for preparing series of terpolymer of poly (diphenyl ether sulfone) and poly (diphenyl ether diphenyl sulfone) comprises: adding high temperature organic solvent, stirring and heating; sequentially adding 4,4′-dihydroxydiphenyl, 4,4′-dichlorodiphenyl sulfone and 4,4′-Bis(4-chlorophenyl)sulfonyl-1,1′-biphenyl; after all the monomers are completely dissolved, heating to 100° C. and adding alkali metal carbonate salt-forming agent which is 5-10 mol % more than the amount of 4,4′-dihydroxydiphenyl added, and subsequently adding xylene; continuously heating and salt-forming reaction begins in the system, and controlling the temperature at 190˜210° C.; then heating to 230˜236° C., and maintaining for 3-4 hours to obtain polymer viscous liquid; and refining the polymer viscous liquid to obtain a terpolymer containing different structural units in the molecular chain, wherein the Tg of the terpolymer can be regulated by changing the ratio of the two dichloro-containing monomers.
    • 一种制备聚(二苯基醚砜)和聚(二苯醚二苯基砜)三元共聚物的方法包括:加入高温有机溶剂,搅拌加热; 依次加入4,4'-二羟基二苯基,4,4'-二氯二苯砜和4,4'-双(4-氯苯基)磺酰基-1,1'-联苯; 在所有单体完全溶解后,加热至100℃,加入碱金属碳酸盐形成剂,其比加入的4,4'-二羟基联苯的量多5-10mol%,随后加入二甲苯; 在系统中开始连续加热和成盐反应,并控制温度在190〜210℃。 然后加热至230〜236℃,保持3-4小时得到聚合物粘稠液体; 并精炼聚合物粘性液体以获得在分子链中含有不同结构单元的三元共聚物,其中三元共聚物的Tg可以通过改变两种含二氯单体的比例来调节。
    • 4. 发明授权
    • Method for preparing terpolymer of poly (diphenyl ether sulfone) and poly (diphenyl sulfone)
    • 聚(二苯醚砜)和聚(二苯基砜)三元共聚物的制备方法
    • US08916674B2
    • 2014-12-23
    • US13504064
    • 2010-12-10
    • Zhongwen WuRongtang MaXiangbin Zeng
    • Zhongwen WuRongtang MaXiangbin Zeng
    • C08G75/00C08G75/23
    • C08G75/23
    • A method for preparing series of terpolymer of poly (diphenyl ether sulfone) and poly (diphenyl ether diphenyl sulfone) comprises: adding high temperature organic solvent, stirring and heating; sequentially adding 4,4′-dihydroxydiphenyl, 4,4′-dichlorodiphenyl sulfone and 4,4′-Bis(4-chlorophenyl)sulfonyl-1,1′-biphenyl; after all the monomers are completely dissolved, heating to 100° C. and adding alkali metal carbonate salt-forming agent which is 5-10 mol % more than the amount of 4,4′-dihydroxydiphenyl added, and subsequently adding xylene; continuously heating and salt-forming reaction begins in the system, and controlling the temperature at 190˜210° C.; then heating to 230˜236° C., and maintaining for 3-4 hours to obtain polymer viscous liquid; and refining the polymer viscous liquid to obtain a terpolymer containing different structural units in the molecular chain, wherein the Tg of the terpolymer can be regulated by changing the ratio of the two dichloro-containing monomers.
    • 一种制备聚(二苯基醚砜)和聚(二苯醚二苯基砜)三元共聚物的方法包括:加入高温有机溶剂,搅拌加热; 依次加入4,4'-二羟基二苯基,4,4'-二氯二苯砜和4,4'-双(4-氯苯基)磺酰基-1,1'-联苯; 在所有单体完全溶解后,加热至100℃,加入碱金属碳酸盐形成剂,其比加入的4,4'-二羟基联苯的量多5-10mol%,随后加入二甲苯; 在系统中开始连续加热和成盐反应,并控制温度在190〜210℃。 然后加热至230〜236℃,保持3-4小时得到聚合物粘稠液体; 并精炼聚合物粘性液体以获得在分子链中含有不同结构单元的三元共聚物,其中三元共聚物的Tg可以通过改变两种含二氯单体的比例来调节。