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    • 3. 发明申请
    • METHOD TO PRODUCE ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE
    • 生产超高分子量聚乙烯的方法
    • US20150274937A1
    • 2015-10-01
    • US14242497
    • 2014-04-01
    • KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    • MAMDOUH AHMAD AL-HARTHIOMER YAHYA BAKATHERSADHAN KUMAR DEREYAD AWWAD KHALAF SHAWABKEH
    • C08K9/02C08F110/02
    • C08K9/02C08F110/02C08F2500/01C08K2003/2241C08K2003/2258C08K2201/011C08F2500/03C08F4/6812C08L23/06
    • The method to produce ultra-high-molecular-weight polyethylene (UHMWPE) incorporates tungsten-doped titania (TiO2/W) nanofiller during the ethylene polymerization process. The UHMWPE possesses improved mechanical and thermal properties. The process for producing the UHMWPE includes contacting ethylene under polymerization conditions with a polymerization catalyst (a vanadium (III) complex bearing bidentate salicylaldiminato ligands) in the presence of TiO2/W nanofiller and a co-catalyst in a reactor. The reactor is charged with solvent (e.g., toluene) and heated to a temperature suitable for polymerization, e.g., about 30° C. Following heating, the ethylene monomer is fed into the reactor and allowed to saturate for at least 10 minutes, and a methyl aluminum dichloride co-catalyst (MADC) is added to initiate polymerization of ethylene. Polymerization is quenched by adding methanol containing HCl incorporated with titania-tungsten nanofillers, which is then washed and dried to yield UHMWPE.
    • 生产超高分子量聚乙烯(UHMWPE)的方法在乙烯聚合过程中掺入掺杂钨的二氧化钛(TiO2 / W)纳米填料。 UHMWPE具有改进的机械和热性能。 制备UHMWPE的方法包括在聚合条件下将乙烯与TiO2 / W纳米填料和助催化剂在反应器中的聚合催化剂(带有二齿水杨醛亚胺配体的钒(III)络合物)接触。 向反应器中加入溶剂(例如甲苯)并加热至适于聚合的温度,例如约30℃。加热后,将乙烯单体进料至反应器中并使其饱和至少10分钟, 加入甲基二氯化铝助催化剂(MADC)以引发乙烯的聚合。 通过加入含有掺入二氧化钛 - 钨纳米填料的HCl的甲醇淬灭聚合,然后将其洗涤并干燥以产生UHMWPE。
    • 9. 发明授权
    • Method to produce ultra-high molecular weight polyethylene
    • 生产超高分子量聚乙烯的方法
    • US09145492B1
    • 2015-09-29
    • US14242497
    • 2014-04-01
    • KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    • Mamdouh Ahmad Al-HarthiOmer Yahya BakatherSadhan Kumar DeReyad Awwad Khalaf Shawabkeh
    • C08K9/02C08F110/02C08K3/22
    • C08K9/02C08F110/02C08F2500/01C08K2003/2241C08K2003/2258C08K2201/011C08F2500/03C08F4/6812C08L23/06
    • The method to produce ultra-high-molecular-weight polyethylene (UHMWPE) incorporates tungsten-doped titania (TiO2/W) nanofiller during the ethylene polymerization process. The UHMWPE possesses improved mechanical and thermal properties. The process for producing the UHMWPE includes contacting ethylene under polymerization conditions with a polymerization catalyst (a vanadium (III) complex bearing bidentate salicylaldiminato ligands) in the presence of TiO2/W nanofiller and a co-catalyst in a reactor. The reactor is charged with solvent (e.g., toluene) and heated to a temperature suitable for polymerization, e.g., about 30° C. Following heating, the ethylene monomer is fed into the reactor and allowed to saturate for at least 10 minutes, and a methyl aluminum dichloride co-catalyst (MADC) is added to initiate polymerization of ethylene. Polymerization is quenched by adding methanol containing HCl incorporated with titania-tungsten nanofillers, which is then washed and dried to yield UHMWPE.
    • 生产超高分子量聚乙烯(UHMWPE)的方法在乙烯聚合过程中掺入掺杂钨的二氧化钛(TiO2 / W)纳米填料。 UHMWPE具有改进的机械和热性能。 制备UHMWPE的方法包括在聚合条件下将乙烯与TiO2 / W纳米填料和助催化剂在反应器中的聚合催化剂(带有二齿水杨醛亚胺配体的钒(III)络合物)接触。 向反应器中加入溶剂(例如甲苯)并加热至适于聚合的温度,例如约30℃。加热后,将乙烯单体进料至反应器中并使其饱和至少10分钟, 加入甲基二氯化铝助催化剂(MADC)以引发乙烯的聚合。 通过加入含有掺入二氧化钛 - 钨纳米填料的HCl的甲醇淬灭聚合,然后将其洗涤并干燥以产生UHMWPE。