Abstract: There is provided a multilayer resin tube having a plurality of thermoplastic resin layers, wherein an intermediate layer of the resin layers comprises an acid modified resin modified by the introduction of a functional group, and at least one layer is a barrier layer comprising an aromatic polyamide, for example, PA9T. The multilayer resin tube has good low-permeability attained with the use of an inexpensive resin, without using an expensive highly-functional resin such as a fluororesin.

Abstract: There is provided a multilayer resin tube having a plurality of thermoplastic resin layers, wherein an intermediate layer of the resin layers comprises an acid modified resin modified by the introduction of a functional group, and at least one layer is a barrier layer comprising an aromatic polyamide, for example, PA9T. The multilayer resin tube has good low-permeability attained with the use of an inexpensive resin, without using an expensive highly-functional resin such as a fluororesin.

Abstract: A laminated resin tube is formed mainly of inexpensive materials and has improved low-permeable ability. The laminated resin tube has a plurality of laminated component resin tubes made of thermoplastic resins. At least one of the plurality of component resin tubes is a first low-permeable barrier tube made of polyamide 9T, and the rest of the component resin tubes include a resin tube made of polyamide 6 or polyamide 66.

Abstract: There is provided a multilayer resin tube having a plurality of thermoplastic resin layers, wherein an intermediate layer of the resin layers comprises an acid modified resin modified by the introduction of a functional group, and at least one layer is a barrier layer comprising an aromatic polyamide, for example, PA9T. The multilayer resin tube has good low-permeability attained with the use of an inexpensive resin, without using an expensive highly-functional resin such as a fluororesin.

Abstract: A laminated resin tube is formed mainly of inexpensive materials and has improved low-permeable ability. The laminated resin tube has a plurality of laminated component resin tubes made of thermoplastic resins. At least one of the plurality of component resin tubes is a first low-permeable barrier tube made of polyamide 9T, and the rest of the component resin tubes include a resin tube made of polyamide 6 or polyamide 66.

Abstract: A resin fuel pipe has component layers made of thermoplastic resins and high heat resistance sufficient to withstand a hot environment in, for example, an engine compartment. The resin fuel pipe includes a pipe body 10 made of a thermoplastic resin, a first heat-resistant, protective resin layer 12 made of a foam thermoplastic elastomer and coating the pipe body 10 and a second heat-resistant, protective resin layer 14 made of a fire-retardant thermoplastic elastomer and coating the first heat-resistant, protective resin layer 12.

Abstract: A multilayer resin pipe includes a plurality of resin layers. At least the innermost resin layer is made of a resin having a low permeability. At least one of the resin layers of the multilayer resin pipe is an electrically conductive layer having electrical conductivity and containing electrically conductive filamentous filler.

Abstract: A resin fuel pipe has component layers made of thermoplastic resins and high heat resistance sufficient to withstand a hot environment in, for example, an engine compartment. The resin fuel pipe includes a pipe body 10 made of a thermoplastic resin, a first heat-resistant, protective resin layer 12 made of a foam thermoplastic elastomer and coating the pipe body 10 and a second heat-resistant, protective resin layer 14 made of a fire-retardant thermoplastic elastomer and coating the first heat-resistant, protective resin layer 12.

Abstract: A fluid quick connector includes a housing and a sleeve movable between first and second positions within the housing upon engagement with an endform inserted into the housing. A retainer mounted on the housing includes at least one radially inward extending protrusion which extends through an aperture in the housing into engagement with the endform to latch the endform in the housing. The sleeve, when in the first position, blocks extension of the protrusion through the aperture in the housing to allow insertion of the endform in the housing. Movement of the sleeve to the second position allows the retainer to retract moving the protrusion through the aperture in the housing into engagement with the endform.

Abstract: A multilayer resin pipe includes a plurality of resin layers respectively made of thermoplastic resins including at least one specific functional resin layer having a high specific property, an adhesive resin layer bonding together the specific functional resin layer and the resin layer adjacent to the specific functional resin layer, and a middle layer interposed between the specific functional resin layer and the resin layer adjacent to the specific functional resin layer and having bond affinity to both the specific functional resin layer and the resin layer adjacent to the specific functional resin layer.

Abstract: A The multilayer resin pipe has an outermost layer made of a mixed resin prepared by mixing a base resin, such as polyamide 11 or 12 not containing any elastomer, and an additive resin, such as polyamide 11 or 12 containing an elastomer so that the elastomer may be uniformly dispersed in the mixed resin.

Abstract: A resin pipe of multilayer construction has a plurality of resin layers respectively made of thermoplastic resins. The surface of any one of the plurality of resin layers is coated with a silicon oxide film.

Abstract: A multilayer resin pipe includes a plurality of resin layers. At least the innermost resin layer is made of a resin having a low permeability. At least one of the resin layers of the multilayer resin pipe is an electrically conductive layer having electrical conductivity and containing electrically conductive filamentous filler.

Abstract: A resin tube has a high impact resistance unparalleled by conventional resin tubes formed of a material containing polyamide 11 resin or polyamide 12 resin as a principal component. The resin tube has a plurality of resin layers including at least one impact-resistant resin layer formed of a composite material prepared by mixing 65 to 75 parts by weight polyamide 11 resin as a first material (A) and 25 to 35 parts by weight composite polyamide 11 resin prepared by adding a proper amount of an olefin elastomer to polyamide 11 resin as a second material (B).

Abstract: A laminated tube has an exceedingly high permeation inhibiting ability unparalleled by conventional laminated tubes. The laminated tube is a laminated structure consisting of a plurality of thermoplastic resin layers. The two or more layers among the plurality of layers are low-permeability layers formed respectively of different low-permeability resins.