Cross-Linked Polyethylene Resin for Large Part Blow Molding
    1.
    发明申请
    Cross-Linked Polyethylene Resin for Large Part Blow Molding 审中-公开
    用于大型吹塑成型的交联聚乙烯树脂

    公开(公告)号:US20080161526A1

    公开(公告)日:2008-07-03

    申请号:US11966151

    申请日:2007-12-28

    IPC分类号: C08F110/02

    摘要: The invention relates generally to the production of polyethylene, and particularly to the production of polyethylene that is mixed with peroxides during extrusion to increase the level of long-chain branching. In an aspect, the polyethylene is used for large part blow molding (LPBM) applications. In an embodiment, the cross-linked polyethylene has a density of from about 0.945 g/cc to about 0.965 g/cc, a molecular weight distribution (MWD) of at least from 10 to 25, for example, and a high load melt index (HLMI) (ASTM D1238 21.6 kg) of from about 1 dg/min to about 30 dg/min. In an embodiment, the cross-linked polyethylene is comprised of at least one olefin having an ESCR of 100 hours to 1000 hours, and a flexural modulus of 120,000 psi to 250,000 psi.

    摘要翻译: 本发明一般涉及聚乙烯的生产,特别涉及在挤出过程中与过氧化物混合以提高长链支化水平的聚乙烯的生产。 在一方面,聚乙烯用于大型吹塑(LPBM)应用。 在一个实施方案中,交联聚乙烯具有约0.945g / cc至约0.965g / cc的密度,例如至少10至25的分子量分布(MWD)和高负载熔体指数 (HLMI)(ASTM D1238 21.6kg)为约1dg / min至约30dg / min。 在一个实施方案中,交联聚乙烯由至少一种具有100小时至1000小时的ESCR的烯烃和120,000psi至250,000psi的挠曲模量组成。