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Patent Searching and Data


Title:
COATED STEEL SHEET AND EXTERIOR BUILDING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2016/020961
Kind Code:
A1
Abstract:
This coated steel sheet comprises: a steel sheet; a primer coating film that is arranged on the steel sheet and contains a chromic acid-based rust preventive pigment and aggregate that serves as primary particles, while not containing porous particles; and a top coating film that is arranged on the primer coating film. The aggregate satisfies the following formula (1) and formula (2). D10 ≥ 0.6T (1) D90 < 2.0T (2) (In the formulae, D10 represents the 10% particle diameter (μm) of the aggregate in the number-based cumulative particle size distribution; D90 represents the 90% particle diameter (μm) of the aggregate in the number-based cumulative particle size distribution; and T represents the film thickness (μm) of a portion of the primer coating film, in which the aggregate is not present.)

Inventors:
TAKAOKA SHINJI
HAYASHIDA TAKAHIDE
UEDA KOICHIRO
FUJIMOTO YASUNORI
KAWAHARA NAHO
OWA KATSUMI
Application Number:
PCT/JP2014/006266
Publication Date:
February 11, 2016
Filing Date:
December 16, 2014
Export Citation:
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Assignee:
NISSHIN STEEL CO LTD (JP)
International Classes:
B32B15/08; C09D7/48; C09D7/61
Foreign References:
JPH08183928A1996-07-16
JPH1142735A1999-02-16
Other References:
See also references of EP 3178650A4
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
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