Multilayer plastic pipe
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Aug 4, 2005
app pub date -
Jan 27, 2005
filing date -
Jan 29, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Multilayer plastic pipe, in particular a multilayer automotive pipeline, is disclosed having the following layers from the outside to inside: a substrate layer of polyamide and/or a blend with a polyamide; a first barrier layer of a barrier layer plastic selected from the group of 'ethylene-vinyl alcohol copolymer (EVOH), polyvinylidene fluoride (PVDF), and ethylene-tetrafluoroethylene copolymer (ETFE)' or consisting of a metal foil; at least one separating layer; a second barrier layer consisting of a barrier layer plastic selected from the group consisting of 'ethylene-vinyl alcohol copolymer (EVOH), polyvinylidene fluoride (PVDF), and ethylene-tetrafluoroethylene copolymer (ETFE)' or of a metal foil. The separating layer may include an adhesive and/or a polyamide layer or a blend with a polyamide. The barrier layers of a tube may be made of the same material or different materials selected from the identified barrier materials. The innermost layer of the tube may include a conductive substance.
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