公开(公告)号：US20180079190A1

公开(公告)日：2018-03-22

申请号：US15558822

申请日：2016-03-09

Applicant: KURARAY CO., LTD.

Inventor： Go TAZAKI ,  HIdeaki SUZUKI ,  Toshiaki HASEGAWA

IPC: B32B27/34 ,  B32B1/08 ,  B32B27/08 ,  F02M37/00 ,  F16L11/12

CPC classification number: B32B27/34 ,  B32B1/08 ,  B32B27/08 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2307/546 ,  F02M37/00 ,  F02M37/0017 ,  F02M37/04 ,  F16L11/125

Abstract: A multilayered tube for transporting fuel including an innermost layer (A), an outermost layer (B) and an intermediate layer (C), characterized by that: the innermost layer (A) and the outermost layer (B) include a resin composition including 40 mass % or more of semi-aromatic polyamide; a flexural modulus of a material constituting the intermediate layer (C) measured according to ISO 178 is 800 MPa or less; and it is used in an environment in which both the innermost layer (A) and the outermost layer (B) are contacted with biodiesel fuel. In addition, a fuel pump module including the multilayered tube for transporting fuel and a method for using them.

公开(公告)号：US20170368805A1

公开(公告)日：2017-12-28

申请号：US15538363

申请日：2015-12-22

Applicant: KURARAY CO., LTD.

Inventor： Go TAZAKI ,  Toshiaki HASEGAWA

IPC: B32B27/18 ,  B32B1/08 ,  B32B27/34 ,  C08L77/06 ,  F16L9/12

CPC classification number: B32B27/18 ,  B32B1/08 ,  B32B3/30 ,  B32B7/12 ,  B32B27/08 ,  B32B27/20 ,  B32B27/22 ,  B32B27/302 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/322 ,  B32B27/34 ,  B32B27/36 ,  B32B2250/02 ,  B32B2250/03 ,  B32B2250/04 ,  B32B2250/05 ,  B32B2250/24 ,  B32B2264/108 ,  B32B2270/00 ,  B32B2307/202 ,  B32B2307/21 ,  B32B2307/306 ,  B32B2307/538 ,  B32B2307/54 ,  B32B2307/558 ,  B32B2307/714 ,  B32B2307/7265 ,  B32B2597/00 ,  C08G69/265 ,  C08K3/041 ,  C08L51/06 ,  C08L77/06 ,  C08L2201/04 ,  C08L2203/18 ,  F16L9/123 ,  F16L11/045 ,  F16L11/127

Abstract: There is provided a multilayered tube for transporting liquid chemicals containing an outermost layer and an innermost layer, the innermost layer containing a polyamide (A), an impact modifier (B), and a carbon nanotube (C), wherein the number of projections each having a height of 5 μm or more and a longitudinal width of 20 μm or more, which are present on the surface of the innermost layer, is 2 or less per 1 mm2 of surface area; and the number of agglomerates each having a longitudinal width of 5 μm or more, which are present in the cross section of the innermost layer, is 15 or less per 1 mm2 of cross-sectional area. There is also provided a polyamide resin composition constituting the innermost layer of the multilayered tube for transporting liquid chemicals.