Invention Grant
- Patent Title: Rubber laminate and flexible hose using same
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Application No.: US16341407Application Date: 2017-10-30
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Publication No.: US11413842B2Publication Date: 2022-08-16
- Inventor: Kenji Miki , Ryota Kojima , Yasushi Takeo
- Applicant: NICHIRIN CO., LTD.
- Applicant Address: JP Kobe
- Assignee: NICHIRIN CO., LTD.
- Current Assignee: NICHIRIN CO., LTD.
- Current Assignee Address: JP Kobe
- Agency: Law Office of Katsuhiro Arai
- Priority: JPJP2016-217883 20161108
- International Application: PCT/JP2017/039174 WO 20171030
- International Announcement: WO2018/088266 WO 20180517
- Main IPC: B32B1/08
- IPC: B32B1/08 ; F16L11/04 ; B32B25/16 ; B32B25/18 ; C08J5/12 ; C08L23/16 ; F16L11/08

Abstract:
A non-crosslinked rubber laminate which is a rubber laminate includes a butyl rubber-containing layer stacked with an ethylene propylene diene rubber and/or ethylene propylene rubber-containing layer, wherein such non-crosslinked rubber laminate is characterized in that the ethylene propylene diene rubber and/or ethylene propylene rubber-containing layer is a rubber-containing layer that contains a low-molecular-weight polyolefin, a phenolic resin, and a crosslinking agent, where: the low-molecular-weight polyolefin is contained by 40 to 70 parts by weight, the phenolic resin is contained by 1 to 4 parts by weight, and the crosslinking agent is contained by at least 1 part by weight, relative to the ethylene propylene diene rubber and/or ethylene propylene rubber constituting a total of 100 parts by weight. An air conditioning hose made of the rubber laminate, for example, can accommodate POE-based lubricating oils and retain vibration absorption characteristics.
Public/Granted literature
- US20200040171A1 RUBBER LAMINATE AND FLEXIBLE HOSE USING SAME Public/Granted day:2020-02-06
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