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    • 3. 发明公开
    • 고순도 폴리에틸렌계 수지조성물 및 그 수지조성물의중공성형체
    • 树脂组合物的高纯度聚乙烯树脂组合物和中空体系
    • KR1020020049130A
    • 2002-06-26
    • KR1020000078224
    • 2000-12-19
    • 제이더블유케미타운 주식회사
    • 전승호육문수이도운
    • C08L23/06B65D1/09B29C49/00A61J1/00
    • C08L23/06A61J1/03B29C49/0031B65D1/095C08L2207/062C08L2314/02
    • PURPOSE: Provided are a high purity polyethylene resin composition and hollow articles produced from the polyethylene resin composition, which can be used in putting high pure chemicals therein and have excellent falling impact-resistance and cleanliness. CONSTITUTION: The polyethylene resin composition comprises 65-95wt% of a polyethylene resin produced by a chromium catalyst or a Ziegler catalyst having a melt index of less than 2.0g/10min(21.6kg, 190deg.C, ASTM D1238) and 35-5wt% of a polyethylene resin produced by a metallocene catalyst having a melt index of 2-50g/10min(21.6kg, 190deg.C, ASTM D1238) and has a weight average molecular weight of 300,000-450,000, a molecular weight distribution(=weight average molecular weight/number average molecular weight) of 8-20, and the extraction amount by boiling n-hexane of less than 0.1wt%(based on the resin composition). And the hollow articles are produced by blow-molding the polyethylene resin composition with clean compressed-air having a class of less than 10 in a clean room having a class(particle number of more than 0.5 micrometer per ft¬3) of less than 1000.
    • 目的:提供由聚乙烯树脂组合物制成的高纯度聚乙烯树脂组合物和中空制品,其可用于将高纯度的化学品放入其中并且具有优异的抗跌落抗冲击性和清洁性。 构成:聚乙烯树脂组合物包含65-95重量%的由铬催化剂或熔融指数小于2.0g / 10min(21.6kg,190℃,ASTM D1238)和35-5重量%的齐格勒催化剂制备的聚乙烯树脂 通过熔融指数为2-50g / 10min(21.6kg,190℃,ASTM D1238)的金属茂催化剂制造的聚乙烯树脂的重量平均分子量为300,000-450,000,分子量分布(=重量) 平均分子量/数均分子量)为8-20,通过沸腾正己烷的提取量小于0.1重量%(基于树脂组成)。 并且中空制品通过在具有小于10的类别(粒度大于0.5微米/ ft -3)的洁净室中吹扫模制聚乙烯树脂组合物而制备,其具有小于10的类别的洁净压缩空气,小于1000 。