| 发明名称 | Polyethylene powder | ||
| 摘要 | The present invention provides a polyolefin powder including a homopolymer of ethylene or a copolymer of ethylene and an α-olefin having 3 to 15 carbon atoms. | ||
| 申请公布号 | US9469701(B2) | 申请公布日期 | 2016.10.18 |
| 申请号 | US201514940387 | 申请日期 | 2015.11.13 |
| 申请人 | Asahi Kasei Chemicals Corporation | 发明人 | Kuwata Kotaro |
| 分类号 | C08F10/02 | 主分类号 | C08F10/02 |
| 代理机构 | Morgan, Lewis & Bockius LLP | 代理人 | Morgan, Lewis & Bockius LLP |
| 主权项 | 1. A polyolefin powder comprising a homopolymer of ethylene or a copolymer of ethylene and an α-olefin having 3 to 15 carbon atoms, wherein the polyolefin powder has a viscosity-average molecular weight of 800,000 to 13,000,000, a ratio (Mv75/Mv250) of a viscosity-average molecular weight (Mv75) of a pass-powder in a classification of the polyolefin powder through a screen mesh having an aperture size of 75 μm to a viscosity-average molecular weight (Mv250) of an on-powder in the classification thereof through a screen mesh having an aperture size of 250 μm is 0.7 to 1.4, a ratio (BD75/BD250) of a bulk density (BD75) of a pass-powder in the classification of the polyolefin powder through a screen mesh having an aperture size of 75 μm to a bulk density (BD250) of an on-powder in the classification thereof through a screen mesh having an aperture size of 250 μm is 0.7 to 1.4, and the polyolefin powder has an average particle size of 200 μm or smaller. | ||
| 地址 | Tokyo JP | ||