Invention Grant
US07022389B2 Method of improving airtightness of hydraulic or pneumatic device with polyamide resin tube
有权
用聚酰胺树脂管改善液压或气动装置的气密性的方法
- Patent Title: Method of improving airtightness of hydraulic or pneumatic device with polyamide resin tube
- Patent Title (中): 用聚酰胺树脂管改善液压或气动装置的气密性的方法
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Application No.: US10853548Application Date: 2004-05-25
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Publication No.: US07022389B2Publication Date: 2006-04-04
- Inventor: Yoshiro Iwata , Shinya Matsuda
- Applicant: Yoshiro Iwata , Shinya Matsuda
- Applicant Address: JP Yamaguchi
- Assignee: Ube Industries, Ltd.
- Current Assignee: Ube Industries, Ltd.
- Current Assignee Address: JP Yamaguchi
- Agency: Akin Gump Strauss Hauer & Feld, LLP
- Priority: JP2001-119122 20010418
- Main IPC: F16L13/16
- IPC: F16L13/16 ; F16L47/00
Abstract:
A hydraulic or pneumatic device is provided, which comprises a tube comprising a polyamide resin composition comprising (A) from 70 to 97% by weight, based on the weight of the polyamide resin composition, of a polyamide resin and (B) from 3 to 30% by weight, based on the weight of the polyamide resin composition, of a plasticizer comprising an ester of p- and/or o-hydroxybenzoic acid with a C12–C22 aliphatic alcohol having a branched chain and a component comprising a rubber compound comprising a polar rubber as a main component, and which exhibits a high reliability over an extended period of time.
Public/Granted literature
- US20040214963A1 Method of improving airtightness of hydraulic or pneumatic device with polyamide resin tube Public/Granted day:2004-10-28
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