发明名称 |
CROSS-LINKABLE POLYETHYLENE-BASED COMPOSITION, METHOD OF MANUFACTURING A TUBE THEREFROM, AND TUBE |
摘要 |
FIELD: polymer materials. ^ SUBSTANCE: composition contains 0.05 to 0.24 hydrolyzable silane groups per 100 methylene units and shows standard density at least 954 kg/m3. Flowability factor of composition melt is below 1.5 g/10 min under loading 5 kg and above 2 g/10 min under loading 21.6 kg as measured in accordance with ASTM standard D 1238. Tube manufacture process envisages extrusion of composition in the form of tube in the first stage and subsequent hydrolysis of the tube in order to link cross-linkable polyethylene. Tubes manufactured according to present invention show high long-term resistance to pressure above 12.5 MPa as measured according to ISO/TR standard 9080 and can be used for transportation of fluid substances under high pressure. ^ EFFECT: improved consumer's quality of tubes. ^ 13 cl, 4 ex |
申请公布号 |
RU2258719(C2) |
申请公布日期 |
2005.08.20 |
申请号 |
RU20020122406 |
申请日期 |
2001.01.15 |
申请人 |
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发明人 |
KORNET MARTIN;LEFEBVR LORAN;VANDEVEJVER EHRIK |
分类号 |
C08L23/04;B29C47/00;C08F255/02;C08K5/54;F16L9/12 |
主分类号 |
C08L23/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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