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    • 94. 发明授权
    • Process of forming an aramid copolymer
    • 形成芳族聚酰胺共聚物的方法
    • US08907052B2
    • 2014-12-09
    • US13559698
    • 2012-07-27
    • Kiu-Seung Lee
    • Kiu-Seung Lee
    • C08G73/00C08G69/26C08G69/32C08K5/3415C08G73/18C08K5/20C08K3/16
    • C08K5/3415C08G69/265C08G69/32C08G73/18C08K3/16C08K5/20C08L77/10C08L79/04
    • The invention concerns processes for forming a polymer comprising residues of 2-(4-amino phenyl)-5(6)amino benzimidazole (DAPBI), paraphenylene diamine (PPD), and terephthaloyl dichloride, comprising the steps of: (a) forming a slurry of DAPBI in a solvent system comprising an organic solvent and an inorganic salt; (b) adding less than a stoichiometric amount, relative to the amount of DAPBI, of terephthaloyl dichloride to the slurry; (c) agitating the slurry to react the DAPBI and terephthaloyl dichloride to form an oligomeric solution; (d) adding PPD to the oligomeric solution and agitating until essentially all of the PPD is dissolved, followed by the addition of terephthaloyl dichloride to form a prepolymer solution; and (e) allowing the prepolymer solution to form a polymer.
    • 本发明涉及形成包含2-(4-氨基苯基)-5(6)氨基苯并咪唑(DAPBI),对苯二胺(PPD)和对苯二甲酰氯的残留物的聚合物的方法,包括以下步骤:(a) DAPBI的浆料在包含有机溶剂和无机盐的溶剂体系中; (b)将相对于DAPBI的量的对苯二甲酰氯的化学计量相对于浆料加入少于; (c)搅拌浆料以使DAPBI和对苯二酰氯反应形成低聚溶液; (d)将PPD加入到低聚溶液中并搅拌直到基本上所有的PPD溶解,然后加入对苯二甲酰氯以形成预聚物溶液; 和(e)使预聚物溶液形成聚合物。
    • 99. 发明申请
    • LARGE SCALE PROCESS FOR POLYMERIZATION OF DAPBI-CONTAINING POLYARAMID
    • 含有多聚氨基甲酸酯的聚合方法的大规模化方法
    • US20110046340A1
    • 2011-02-24
    • US12937849
    • 2009-04-09
    • Richard Elena Theodorus Petrus De VosJoannes Marinus SurquinMarlieke Elisabeth Josephine Pepels
    • Richard Elena Theodorus Petrus De VosJoannes Marinus SurquinMarlieke Elisabeth Josephine Pepels
    • C08G73/18
    • C08G69/32C08G69/28C08G73/18C08K3/16
    • A method for obtaining an aromatic polyamide crumb from an aromatic diamine and an aromatic diacid chloride, which aromatic polyamide comprises 5(6)-amino-2-(p-aminophenyl)benzimidazole terephthalamide units and has a relative viscosity ηrel of at least 3, by: (1) adding at least monomers (i)-(iii) in N-methyl pyrrolidone as solvent wherein (i) is 0-30 mole % para-phenylenediamine (PPD), (ii) is 20-50 mole % 5(6)-amino-2-(p-aminophenyl)benzimidazole (DABPI), (iii) is 49.05-50.05 mole % terephthaloyl dichloride (TDC), and optionally calcium chloride to obtain a CaCl2/aromatic diamine molar ratio less than 0.5, and an aromatic diamine/aromatic diacid chloride ratio between 0.99 and 1.01; (2) mixing the monomers and the optional calcium chloride to a homogenous mixture having a monomer concentration of 5 to 12 wt %; followed by (3) adding calcium chloride to the homogeneous mixture to obtain a CaCl2/aromatic diamine molar ratio 0.6-1.0; and (4) polymerizing the mixture.
    • 芳香族聚酰胺包含5(6) - 氨基-2-(对氨基苯基)苯并咪唑对苯二甲酰胺单元的芳族二胺和芳香族二酰氯获得芳香族聚酰胺碎屑的方法,其相对粘度和相对密度至少为 3,通过:(1)在N-甲基吡咯烷酮作为溶剂中加入至少单体(i) - (iii),其中(i)为0-30摩尔%对苯二胺(PPD),(ii)为20-50摩尔 %5(6) - 氨基-2-(对氨基苯基)苯并咪唑(DABPI),(iii)为49.05-50.05摩尔%对苯二酰氯(TDC),任选氯化钙,得到CaCl 2 /芳族二胺摩尔比小于 0.5,芳族二胺/芳族二酰氯比例在0.99〜1.01之间; (2)将单体和任选的氯化钙混合到单体浓度为5至12重量%的均匀混合物中; 然后(3)向均匀混合物中加入氯化钙,得到CaCl 2 /芳族二胺摩尔比0.6-1.0; 和(4)使混合物聚合。