LOW OLIGOMER CONDUCTIVE POLYAMIDE

摘要

The present invention relates to a low oligomer conductive polyamide composition, and articles of manufacture useful in the art of the transport of fluids such as solvents, polar fluids and fuels for applications such as fuel hoses or tubing for internal combustion engines. The material in the hose which is in contact with the fuel must be resistant to the extraction of materials from the hose which precipitate into the fuel or have the potential to clog fuel filters, fuel injectors and the like which have extremely small orifices and, thus, low tolerance for particulates in the fuel. As used herein, the term "low precipitate polyamide" means that the polyamide has been washed or extracted to reduce the level of components such as oligomers (low molecular weight polyamide), solids or semi-solids which would otherwise be released by the polyamide after exposure to the transported fluid and/or precipitate into the fluid.