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Title:
POWDER COATING MATERIAL, METHOD FOR PRODUCING SUBSTRATE WITH COATING FILM, COATED ARTICLE AND FLUORINE-CONTAINING POLYMER
Document Type and Number:
WIPO Patent Application WO/2018/131655
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a powder coating material which is capable of forming a coating film that has excellent impact resistance, flexibility and adhesion to a substrate, while exhibiting excellent surface smoothness even if formed under low temperature conditions; and a fluorine-containing polymer. A powder coating material according to the present invention contains a fluorine-containing polymer that has a unit based on a fluoroolefin, a unit based on a monomer represented by formula X-Z and a unit based on a monomer represented by formula CHR21=CR22(CH2)nCOOH, with the content of the unit based on a monomer represented by formula X-Z relative to all the units contained in the fluorine-containing polymer being 5-20% by mole; and the fluorine-containing polymer has a melt viscosity of 20-100 Pa·s at 170°C. (In the formulae, X represents a specific monovalent polymerizable group; Z represents a specific alkyl group, a specific cycloalkyl group or a specific aryl group; each of R21 and R22 independently represents a hydrogen atom or a specific alkyl group; and n represents an integer of 0-12.)

Inventors:
HASEGAWA Yui (Limited 5-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
HARA Yuji (Limited 5-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
SUMI Naoko (Limited 5-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
SAITO Shun (Limited 5-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
Application Number:
JP2018/000500
Publication Date:
July 19, 2018
Filing Date:
January 11, 2018
Export Citation:
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Assignee:
ASAHI GLASS COMPANY, LIMITED (5-1 Marunouchi 1-chome, Chiyoda-ku Tokyo, 05, 〒1008405, JP)
International Classes:
C09D127/12; B05D7/24; B32B27/30; C08F214/18; C08F220/04; C09D5/03; C09D133/00
Foreign References:
JP2003105270A2003-04-09
JPH06172451A1994-06-21
JPH08157537A1996-06-18
Attorney, Agent or Firm:
SENMYO Kenji et al. (3rd Floor, PMO Kanda-Tsukasamachi 2-8-1, Kanda-Tsukasamachi, Chiyoda-k, Tokyo 48, 〒1010048, JP)
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