Title:
MULTI-LAYER COATING
Document Type and Number:
WIPO Patent Application WO/2017/038802
Kind Code:
A1
Abstract:
To provide a multi-layer coating for covering the surface of a concrete substrate, the multi-layer coating having high transparency and application thereof not imparting a wet coloring onto the surface of the concrete. The transparent multi-layer coating includes: a lower coating layer derived from a lower coating composition, which contains at least one selected from the group consisting of acrylic resins, urethane resins, urea resins, and modified forms of these resins; a middle coating layer derived from a middle coating composition; and an upper coating layer derived from an upper coating composition. The transparent multi-layer coating is formed on the surface of a concrete substrate so that the difference between the L value of the concrete substrate surface before forming of the multi-layer coating and the L value of the concrete substrate surface after forming of the multi-layer coating is ‒2.0 to 4.0.
Inventors:
HOSHINO MASAYA (JP)
KANASHIRO ATSUSHI (JP)
KANASHIRO ATSUSHI (JP)
Application Number:
PCT/JP2016/075288
Publication Date:
March 09, 2017
Filing Date:
August 30, 2016
Export Citation:
Assignee:
NIPPON PAINT CO LTD (JP)
International Classes:
B32B13/12; C09D7/12; C09D143/04; C09D163/00
Foreign References:
| JPH08302239A | 1996-11-19 | |||
| JP5616548B1 | 2014-10-29 | |||
| JP2005218914A | 2005-08-18 | |||
| JP2014047585A | 2014-03-17 | |||
| JP2014152584A | 2014-08-25 |
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki et al. (JP)
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