发明授权
- 专利标题： Pressureless pipe comprising a multimodal polyethylene composition with an inorganic filler
- 专利标题（中）： 包括具有无机填料的多峰聚乙烯组合物的无压管
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申请号： US12064088申请日： 2006-08-02
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公开(公告)号： US08372499B2公开(公告)日： 2013-02-12
- 发明人: Carl-Gustaf Ek , Mats Bäckman
- 申请人： Carl-Gustaf Ek , Mats Bäckman
- 申请人地址： FI Porvoo
- 专利权人： Borealis Technology Oy
- 当前专利权人： Borealis Technology Oy
- 当前专利权人地址： FI Porvoo
- 代理机构： Fay Sharpe LLP
- 优先权： EP05020166 20050915
- 国际申请： PCT/EP2006/007666 WO 20060802
- 国际公布： WO2007/031155 WO 20070322
- 主分类号： B29D22/00
- IPC分类号： B29D22/00 ; B29D23/00 ; B32B1/08
摘要：
The present invention relates to a pipe or a supplementary pipe article comprising a polyethylene composition comprising a base resin which comprises (A) a first ethylene homo- or copolymer fraction, and (B) a second ethylene homo- or copolymer fraction, wherein fraction (A) has a lower average molecular weight than fraction (B), the base resin has a flexural modulus determined according to ISO 178 of 1000 MPa or higher, and the composition further comprises (C) an inorganic mineral filler, wherein inorganic mineral filler (C) is present in the composition in an amount of 1 to 70 wt. %, and to the use of said composition for the production of a pipe or a supplementary pipe article.
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