Original document(21 pages) Authorized document(21 pages) 中文版
    The present invention relates to a multilayer tube comprising, in its radial direction from the outside inwards: an outer layer formed from a polyamide chosen from PA-11 and PA-12, a layer formed from a tie compound, a layer formed from an EVOH, a layer formed from a blend of a polyamide and a polyolefin having a polyamide matrix a layer from a tie compound an inner layer formed from a polyamide chosen from PA-11 and PA-12 and including a dispersed electrically conducting filler producing a surface resistivity of less than 106OMEGA-square, the layers being successive and adhering to one another in their respective contact region. The tube of the present invention has a very low permeability to petrol, particularly to hydrocarbons and their additives, and in particular to alcohols, such as methanol and ethanol, or to ethers, such as MTBE or ETBE. These tubes also have good resistance to engine lubrication oils and fuels. The tube has very good mechanical properties at low or high temperatures.
Application Number
申请号
02151834 Application Date
申请日
2002.11.22
Title 名称 Conductive multilayer gasoline conveying pipe based on polymeric amide and EVOH
Publication Number
公开号
1433883 Publication Date
公开日
2003.08.06
Approval Pub. Date 2006.05.03 Granted Pub. Date 2006.05.03
International Classification 分类号 B29D23/00;B32B1/08;B32B27/32;B32B27/34;B60K15/01;F16L11/12
Applicant(s) Name
申请人
Atofina
Address 地址
Inventor(s) Name 发明人 J. Merziger;C. Lacroix
Attorney & Agent 代理人 duan xiaoling luo caixi
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