Title:
良好な加工性能を有するパイプ原料に好適なポリエチレン成形コンパウンド
Document Type and Number:
Japanese Patent JP2004510023
Kind Code:
A
Abstract:
The invention relates to a polymeric molding compound made from a first ethylene polymer (A) and from a second ethylene polymer (B) which is particularly suitable for producing thick-walled large-caliber pipes, wherein the molding compound comprises an amount in the range from 55 to 75% by weight of the first ethylene polymer (A) and an amount in the range from 25 to 45% by weight of the second ethylene polymer (B), based in each case on the total weight of the molding compound, where the first ethylene polymer (A) is a copolymer of ethylene with a 1-olefin having a total number of carbon atoms in the range from 4 to 10 as comonomer, and with a proportion of from 0.2 to 5% by weight of comonomer, based on the weight of the first ethylene polymer (A), and with a wide bimodal molar mass distribution, and where the second ethylene polymer (B) is a copolymer made from ethylene units and from a 1-olefin having a number of carbon atoms in the range from 4 to 10, which has a bimodal molar mass distribution differing from that of the first ethylene polymer (A). The invention further relates to a high-strength pipe made from this molding compound, and to its use for the transport of gas or water.
Inventors:
Krumpel, Peter
Enderle, Johannes-Friedrich
Enderle, Johannes-Friedrich
Application Number:
JP2002530649A
Publication Date:
April 02, 2004
Filing Date:
September 08, 2001
Export Citation:
Assignee:
Basel, Polyolefin, Gezel Shaft, Mitt, Beschlenktel, Haftung
International Classes:
C08J3/20; C08L23/04; C08L23/08; (IPC1-7): C08L23/08; C08J3/20
Domestic Patent References:
| JPH09117949A | 1997-05-06 | |||
| JPH06248125A | 1994-09-06 |
Attorney, Agent or Firm:
Satoshi Eto