Title:
PARTS WITH OIL-REPELLENT LAYERS AND PROCESS FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2006/123840
Kind Code:
A1
Abstract:
A part having an oil-repellent layer which exhibits such high oil repellency as to make droplets of fuel or lubricating oil slip speedily down the surface around a fuel injector nozzle; and a process for the production thereof, more specifically, a part (10) having an oil-repellent layer (14) which comprises a metal substrate (12) and an oil-repellent layer (14) formed on the surface of the substrate (12), characterized in that the oil-repellent layer (14) is constituted of an underlayer (16) of poly(ether sulfone) (PES) adhering tightly to the surface of the substrate (12) and a top layer (18) comprising a continuous PES phase (20) uniting with the PES of the underlayer (16) and a dispersed phase (22) of a tetrafluoroethylene/hexafluoro- propylene copolymer (FEP) and that the top layer (18) is exposed as the surface of the oil-repellent layer (14). It is preferable that the oil-repellent layer (14) have a PES/FEP weight ratio of 40 : 60 to 80 : 20, still preferably 60 : 40 to 75 : 25. Further, it is preferable in order to enhance the tight adhesion of the substrate (12) to the PES underlayer (16) that the substrate (12) have a roughened surface.
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Inventors:
Shiratani, Kazuhiko c/o TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyotacho Toyota-sh, Aichi 71, 47185, JP)
Miyazaki, Syoji c/o TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyotacho Toyota-sh, Aichi 71, 47185, JP)
Sakamoto, Katsumi c/o TOYO DRILUBE CO. LTD. (359-9, Mimase, Aikawa-machi, Aiko-gu, Kanagawa 08, 24303, JP)
Kobayashi, Akihito c/o TOYO DRILUBE CO. LTD. (427-5, Kamitajimamachi, Ota-sh, Gunma 44, 37300, JP)
Miyazaki, Syoji c/o TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyotacho Toyota-sh, Aichi 71, 47185, JP)
Sakamoto, Katsumi c/o TOYO DRILUBE CO. LTD. (359-9, Mimase, Aikawa-machi, Aiko-gu, Kanagawa 08, 24303, JP)
Kobayashi, Akihito c/o TOYO DRILUBE CO. LTD. (427-5, Kamitajimamachi, Ota-sh, Gunma 44, 37300, JP)
Application Number:
PCT/JP2006/310511
Publication Date:
November 23, 2006
Filing Date:
May 19, 2006
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyotacho, Toyota-shi Aichi, 71, 47185, JP)
TOYO DRILUBE CO., LTD. (1-26-4, Daizawa Setagaya-k, Tokyo 32, 15500, JP)
Shiratani, Kazuhiko c/o TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyotacho Toyota-sh, Aichi 71, 47185, JP)
Miyazaki, Syoji c/o TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyotacho Toyota-sh, Aichi 71, 47185, JP)
Sakamoto, Katsumi c/o TOYO DRILUBE CO. LTD. (359-9, Mimase, Aikawa-machi, Aiko-gu, Kanagawa 08, 24303, JP)
Kobayashi, Akihito c/o TOYO DRILUBE CO. LTD. (427-5, Kamitajimamachi, Ota-sh, Gunma 44, 37300, JP)
TOYO DRILUBE CO., LTD. (1-26-4, Daizawa Setagaya-k, Tokyo 32, 15500, JP)
Shiratani, Kazuhiko c/o TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyotacho Toyota-sh, Aichi 71, 47185, JP)
Miyazaki, Syoji c/o TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyotacho Toyota-sh, Aichi 71, 47185, JP)
Sakamoto, Katsumi c/o TOYO DRILUBE CO. LTD. (359-9, Mimase, Aikawa-machi, Aiko-gu, Kanagawa 08, 24303, JP)
Kobayashi, Akihito c/o TOYO DRILUBE CO. LTD. (427-5, Kamitajimamachi, Ota-sh, Gunma 44, 37300, JP)
International Classes:
B32B15/082; B32B15/08; B32B27/00; C09D5/00; C09D7/14; C09D127/18; C09D127/20; C09D181/06; C23C26/00; C23C28/00; F02M61/18
Attorney, Agent or Firm:
Aoki, Atsushi (SEIWA PATENT & LAW, Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chom, Minato-ku Tokyo 23, 10584, JP)
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