Invention Grant
- Patent Title: Multilayered tube for transporting liquid medicine and polyamide resin composition
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Application No.: US15538363Application Date: 2015-12-22
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Publication No.: US10906278B2Publication Date: 2021-02-02
- Inventor: Go Tazaki , Toshiaki Hasegawa
- Applicant: KURARAY CO., LTD.
- Applicant Address: JP Kurashiki
- Assignee: KURARAY CO., LTD.
- Current Assignee: KURARAY CO., LTD.
- Current Assignee Address: JP Kurashiki
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2014-260631 20141224
- International Application: PCT/JP2015/085874 WO 20151222
- International Announcement: WO2016/104531 WO 20160630
- Main IPC: B32B1/08
- IPC: B32B1/08 ; B32B27/18 ; C08L77/06 ; F16L9/12 ; B32B27/32 ; F16L11/127 ; F16L11/04 ; C08K3/04 ; C08G69/26 ; C08L51/06 ; B32B27/20 ; B32B27/30 ; B32B3/30 ; B32B27/08 ; B32B7/12 ; B32B27/22 ; B32B27/36 ; B32B27/34

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.
Public/Granted literature
- US20170368805A1 MULTILAYERED TUBE FOR TRANSPORTING LIQUID MEDICINE AND POLYAMIDE RESIN COMPOSITION Public/Granted day:2017-12-28
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