发明名称 |
VERFAHREN ZUR HERSTELLUNG EINES MVTR-HARZES |
摘要 |
The present invention is directed to producing a resin which, when formed into a film, has excellent gas barrier and/or moisture barrier (low MVTR) properties. Further, the resin has a relatively high molecular weight distribution, preferably above 6, and has excellent processability/extrudability. The resin is produced using a cyclopentadienyl chromium compound, preferably a mono CpCr compound, on a support, preferably a silica support. A particularly preferred catalyst for use in the present invention comprises pentamethylcyclopentadienyidimethylchromiumpyridine. Preferably, the catalyst is used in a slurry polymerization process. |
申请公布号 |
DE60105407(D1) |
申请公布日期 |
2004.10.14 |
申请号 |
DE2001605407 |
申请日期 |
2001.03.16 |
申请人 |
CHEVRON PHILLIPS CHEMICAL CO. LP, THE WOODLANDS |
发明人 |
BEACH, DAVID L.;SCHEXNAYDER, M. A.;MILLS, CHARLES D.;SOLIS, JAMES A.;MORA, JAVIER M.;TAYLOR, KEVIN J. |
分类号 |
C08F4/02;C08F4/69;C08F4/78;C08F10/00;C08F110/02;(IPC1-7):C08F4/78 |
主分类号 |
C08F4/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|