| 发明名称 |
ROTOMOLDING RESIN |
| 摘要 |
Resins suitable for rotomolded articles comprise a bimodal polyethylene copolymer comprising from 0.1 to 5 weight % of one or more C6-8 alpha olefins and the balance ethylene, comprising from 20 to 50 weight % of a higher molecular weight polymer component having an Mw greater than 120,000 and correspondingly from 80 to 50 weight % of a lower molecular weight polymer component having an Mw less than 100,000 having a density greater than 0.942 g/cc [but less than 0.965 g/cc] and a bent strip ESCR as determined by ASTM D 1693 in 100% Igepal® CO-630 (ethoxylated nonylphenols) for conditions A and B of greater than 1000 hours. The resulting articles have a very good balance of properties and significant ESCR. |
| 申请公布号 |
US2015065657(A1) |
申请公布日期 |
2015.03.05 |
| 申请号 |
US201414535694 |
申请日期 |
2014.11.07 |
| 申请人 |
NOVA Chemicals (International) S.A. |
发明人 |
Bellehumeur Celine;Lacombe Yves;Hoidas Mark |
| 分类号 |
C08L23/08 |
主分类号 |
C08L23/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A rotomolded article comprising a bimodal polyethylene copolymer comprising from 0.1 to 5 weight % of one or more C6-8 alpha olefins and the balance ethylene, comprising from 20 to 50 weight % of a higher molecular weight polymer component having an Mw from 140,000 to 300,000 and correspondingly from 80 to 50 weight % of a lower molecular weight polymer component having an Mw less than 100,000 having a density greater than 0.942 g/cc, an Mz/Mw from 2.4 to 3.2 and a bent strip ESCR (f50) as determined by ASTM D 1693 in 100% Igepal CO-630 (ethoxylated nonylphenols) for conditions A and B of greater than 1000 hours. |
| 地址 |
Fribourg CH |
