| 发明名称 | Polyolefin composition with low CLTE | ||
| 摘要 | The invention relates to novel polyolefin compositions having a low coefficient of thermal expansion (CLTE), high stiffness and high flowability. The novel compositions comprise a heterophasic propylene copolymer, an inorganic filler, an ethylene/alpha-olefin elastomer and at least two different alpha-nucleating agents. | ||
| 申请公布号 | US9115276(B2) | 申请公布日期 | 2015.08.25 |
| 申请号 | US200912737380 | 申请日期 | 2009.07.10 |
| 申请人 | Borealis AG | 发明人 | Brandstetter Franz;Maureder Klaus;Tranninger Michael |
| 分类号 | C08K5/01;C08L23/10;C08L23/12;C08K3/34;C08K5/00;C08K5/523;C08L23/08;C08L23/14;C08L23/20 | 主分类号 | C08K5/01 |
| 代理机构 | Warn Partners, P.C. | 代理人 | Warn Partners, P.C. |
| 主权项 | 1. Polyolefin composition comprising a. 54-70 wt %, of a heterophasic propylene copolymer comprising i. 70-90 wt %, based on the weight of the heterophasic propylene copolymer of a propylene homopolymer, andii. 10-30 wt %, based on the weight of the heterophasic propylene copolymer of an ethylene-propylene rubber, b. 2-10 wt % of an ethylene/α-olefin elastomer, the α-olefin being a C4-C10 α-olefin, c. 20-46 wt % of an inorganic filler, and d. at least two different α-nucleating agents in a total amount of 0.0011-2.0 wt %; wherein the heterophasic propylene copolymer and the ethylene/α-olefin elastomer together account for at least 97% of all polymeric components of the polyolefin composition; and wherein the polyolefin composition has a CLTE<60 μm/m.K. | ||
| 地址 | Vienna AT | ||