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    • 5. 发明授权
    • Apparatus and process for a polycondensation reaction
    • 缩聚反应的装置和方法
    • US5856423A
    • 1999-01-05
    • US771494
    • 1996-12-23
    • Kamlesh Kumar Bhatia
    • Kamlesh Kumar Bhatia
    • B01J19/18C08G63/78C08G64/00
    • B01J19/1887C08G63/785B01J2219/182
    • An improved process and apparatus for the production of a polyester or other condensation polymer is disclosed. In particular, polymerization is conducted in a reaction vessel equipped with a specially designed agitator that exposes the polymer melt partially filling the reaction vessel to inert gas flowing through the vessel. The agitator comprises a plurality of elements that lift a portion of a polymer melt in the reaction vessel and generate films of the polymer melt which films extends in planes that are parallel to the axis of the agitator and the flow of gas through the reaction vessel. In a preferred process, a melt of bis(2-hydroxyethyl) terephthalate, or its low molecular oligomers, obtained by esterifying terephthalic acid or transesterifying dimethyl terephthalate with ethylene glycol, is contacted with an inert gas at about atmospheric pressure in order to remove the reaction by-products and facilitate polymerization.
    • 公开了用于生产聚酯或其它缩合聚合物的改进方法和设备。 特别地,在装有特别设计的搅拌器的反应容器中进行聚合,所述搅拌器将部分填充反应容器的聚合物熔体暴露于流过容器的惰性气体。 搅拌器包括多个元件,其提升反应容器中聚合物熔体的一部分并产生聚合物熔体的膜,该膜在平行于搅拌器的轴线的平面中延伸,并且气体通过反应容器流动。 在优选的方法中,通过将对苯二甲酸酯或酯交换对苯二甲酸二甲酯与乙二醇酯酯化的双(2-羟乙基)对苯二甲酸酯或其低分子量低聚物的熔体在大气压下与惰性气体接触,以除去 反应副产物并促进聚合。
    • 8. 发明授权
    • Coating formulation kit including a catalyst solution dispenser for a hand-held liquid spraying apparatus
    • 涂料制剂试剂盒,包括用于手持式液体喷涂装置的催化剂溶液分配器
    • US07063745B2
    • 2006-06-20
    • US10869702
    • 2004-06-16
    • Kamlesh Kumar Bhatia
    • Kamlesh Kumar Bhatia
    • B05B7/00
    • B05B7/2408B05B7/2405B05B7/2472B05B7/2478
    • A kit for forming a multi-component coating formulation for application using a hand-held spraying apparatus to produce a finished coating on a surface comprises a first and a second container holding respective first and second components of a multi-component coating formulation. The kit also includes at least one dispenser in the form a generally tubular body member having a closure at both a first and a second end thereof. The dispenser holds a predetermined volume of a polymerization catalyst solution having “w” weight percent of catalyst therein.The dispenser has a predetermined cross sectional area “a” given by the relationship: a≅P·A·[W/w]·10−6, where “A” is the cross sectional area of the reservoir holding a liquid coating formulation having “W” weight percent of solids; and P is the ratio by weight of the catalyst to the solids desired in the finished coating, in parts per million.
    • 用于形成用于使用手持喷涂装置在表面上生产成品涂层的多组分涂料配方的试剂盒包括容纳多组分涂料制剂的相应的第一和第二组分的第一和第二容器。 套件还包括至少一个分配器,其形式为大体上管状的本体构件,在其第一和第二端都具有封闭件。 分配器保持预定体积的在其中具有“w”重量百分比的催化剂的聚合催化剂溶液。 分配器具有由以下关系给出的预定横截面积“a”:<?in-line-formula description =“In-line Formulas”end =“lead”?>a≅PA[W / w] .10 -6 ,<?in-line-formula description =“In-line Formulas”end =“tail”?>其中“A”是储存液体涂料配方的储存器的横截面面积,具有“W “重量百分比的固体; 和P是催化剂与成品涂料中所需固体的重量比,以百万分之几。
    • 9. 发明授权
    • Apparatus and process for a polycondensation reaction
    • 缩聚反应的装置和方法
    • US5677415A
    • 1997-10-14
    • US625571
    • 1996-03-28
    • Kamlesh Kumar Bhatia
    • Kamlesh Kumar Bhatia
    • B01J19/18C08G63/78C08G63/00
    • B01J19/1887C08G63/785B01J2219/182
    • An improved process and apparatus for the production of polyester or other polycondesation polymers is disclosed. In particular, polymerization is conducted in a reaction vessel equipped with a specially designed agitator that exposes the polymer melt partially filling the reaction vessel to inert gas flowing through the vessel. The agitator comprises a plurality of elements that lift a portion of a polymer melt in the reaction vessel and generate films of the polymer melt which films extends in planes that are substantially parallel to the axis of the agitator and the flow of gas through the reaction vessel. In a preferred process, a melt of dihydroxy ethyl terephthalate, or its low molecular oligomers, obtained by esterifying terephthalic acid or transesterifying dimethyl terephthalate with ethylene glycol, is intimately contacted with an inert gas at about atmospheric pressure in order to remove the reaction by-products and facilitate polymerization.
    • 公开了用于生产聚酯或其它聚合物聚合物的改进的方法和设备。 特别地,在装有特别设计的搅拌器的反应容器中进行聚合,所述搅拌器将部分填充反应容器的聚合物熔体暴露于流过容器的惰性气体。 搅拌器包括多个元件,其提升反应容器中的聚合物熔体的一部分并产生聚合物熔体的膜,该膜在基本上平行于搅拌器的轴线的平面中延伸,并且气体通过反应容器 。 在优选的方法中,通过酯化对苯二甲酸或酯交换对苯二甲酸二甲酯与乙二醇获得的对苯二甲酸二羟乙酯或其低分子量低聚物的熔体在约大气压下与惰性气体紧密接触,以除去副反应, 产品,促进聚合。