公开(公告)号：US20220250115A1

公开(公告)日：2022-08-11

申请号：US17629178

申请日：2020-06-22

Applicant: KANSAI PAINT CO., LTD. ,  NISSAN MOTOR CO., LTD.

Inventor： Tatsuo OHNUKI ,  Kenichi UMEZAWA ,  Junpei SUZUKI ,  Tomoyuki OKAMOTO ,  Chie MICHIURA ,  Ayaka KURIHARA ,  Takeshi GOTO

IPC: B05D7/00 ,  B05D5/06 ,  B05D3/02 ,  B05D7/02 ,  B05D7/14 ,  C09D7/62 ,  C09D7/40 ,  C09D7/20 ,  C09D5/00 ,  C09D175/14

Abstract: A method for forming a multilayer coating film, sequentially conducting step (1) of applying an aqueous 2-package type first colored paint on both a metal member and a plastic member of an automobile outer panel to form an uncured first colored coating film; step (2) of applying an aqueous 1-package type white paint on the uncured first colored coating film by step (1) to form an uncured white coating film; step (3) of applying an aqueous 1-package type interference color paint on the uncured white coating film by step (2) to form an uncured interference color coating film; step (4) of applying a solvent-based 2-package type clear paint on the uncured interference color coating film by step (3) to form an uncured clear coating film; and step (5) of heating these coating films by steps (1) to (4) at 75 to 100° C. to simultaneously cure them.

公开(公告)号：US20200171518A1

公开(公告)日：2020-06-04

申请号：US16613202

申请日：2017-05-17

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Shigenori KAZAMA ,  Takeshi GOTO ,  Takamitsu ONO ,  Masaaki IWAYA

IPC: B05B5/04 ,  B05B15/55 ,  B05B5/043

Abstract: A bell cup (3) of a rotary atomization-type coating device (1) is provided. This device has a rotary shaft (13) and a feed tube (15) inserted in the rotary shaft. The bell cup is fitted to a tip end part of the rotary shaft and has a coating material spreading surface (31) on an inner surface of the bell cup. The feed tube discharges a coating material to the coating material spreading surface. The coating material spreading surface includes a region extending from a predetermined position on a proximal end side to a distal end edge. The region is constituted of a convex curved surface toward an extension of the rotary shaft. The outermost surface of at least part (31B) of the coating material spreading surface is covered by a diamond-like carbon film (50) free from silicon at least on its outermost surface.