公开(公告)号：EP1882583A4

公开(公告)日：2008-07-02

申请号：EP06756611

申请日：2006-05-19

申请人： TOYOTA MOTOR CO LTD

发明人： SHIRATANI KAZUHIKO ,  MIYAZAKI SYOJI ,  SAKAMOTO KATSUMI ,  KOBAYASHI AKIHITO

IPC分类号： B32B15/082 ,  B32B15/08 ,  B32B27/00 ,  C09D5/00 ,  C09D7/80 ,  C09D127/18 ,  C09D127/20 ,  C09D181/06 ,  C23C26/00 ,  C23C28/00 ,  F02M61/18

CPC分类号： C09D5/00 ,  B05D1/34 ,  B05D3/0209 ,  B05D3/0254 ,  B05D5/08 ,  B05D7/14 ,  C08L27/18 ,  C08L27/20 ,  C09D7/65 ,  C09D7/80 ,  C23C24/08 ,  C23C26/00

摘要： A part provided with an oil-repellent coating having an oil repellency great enough to enable droplets of fuel and lubricating oil to quickly slide off from the surface in the vicinity of an injection port of a fuel injector and a method of production of the same are provided. A part 10 comprised of a metal base material 12 on the surface of which an oil-repellent coating 14 is provided, said part provided with an oil-repellent coating characterized in that said oil-repellent coating 14 is constituted by a bottom layer 16 of PES (polyether sulfone) adhered to a surface of the base material and a top layer 18 formed by dispersion of discrete phases 22 of FEP (tetrafluoroethylene-hexafluoropropylene copolymer) in a continuous phase 20 of PES integrally formed with the PES of the bottom layer 16 and in that the top layer 18 is exposed as the surface of the oil-repellent coating 14. A weight ratio PES wt%:FEP wt% of PES and PEP which form the oil-repellent coating 14 is preferably 40:60 to 80:20, more preferably 60:40 to 75:25. Preferably, the surface of the base material 12 is roughened so as to raise adhesion with the bottom layer 16 of PES.