Title:
水性ベースコートおよびトップコートでコーティングされた基材を乾燥させ硬化させるための多段プロセス
Document Type and Number:
Japanese Patent JP2007503994
Kind Code:
A
Abstract:
A multi-stage process for drying and curing substrates coated with liquid waterborne basecoat and a topcoat includes: (a) applying a liquid waterborne basecoating composition to the substrate surface; (b) exposing the basecoating composition to air having a temperature ranging from ambient to about 40° C. for a period of about 30 seconds to volatilize at least a portion of volatile material from the liquid basecoating composition, the velocity of the air at the surface of the basecoating composition being about 0.3 to about 1 meter per second; (c) applying heated air to the basecoating composition for a period ranging from about 30 to about 45 seconds, the velocity of the air at the surface of the basecoating composition ranging from about 1.5 to 15 meters per second, the air having a temperature ranging from about 30° C. to about 90° C.; (d) applying infrared radiation and heated air simultaneously to the basecoating composition for a period of ranging from about 30 to 45 seconds, the velocity of the air at the surface of the basecoating ranging from about 1.5 to 5 meters per second, the air having a temperature ranging from about 30° C. to about 60° C., such that a sufficiently dried basecoat is formed upon the surface of the substrate; (e) applying a topcoating composition over the basecoat; and (f) simultaneously curing the basecoating composition and the topcoating composition together.
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Inventors:
Dennis M. Dixon
Basil buoy. Gregocrobic
John Earl Moore
Basil buoy. Gregocrobic
John Earl Moore
Application Number:
JP2006525492A
Publication Date:
March 01, 2007
Filing Date:
September 03, 2004
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
B05D3/02; B05D1/36; B05D7/00; B05D7/14; F26B3/28; B05D3/04
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe