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 (JP)
HARA YUJI (JP)
SUMI NAOKO (JP)
SAITO SHUN (JP)
HARA YUJI (JP)
SUMI NAOKO (JP)
SAITO SHUN (JP)
Application Number:
PCT/JP2018/000500
Publication Date:
July 19, 2018
Filing Date:
January 11, 2018
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C09D127/12; B05D7/24; B32B27/30; C08F214/18; C08F220/04; C09D5/03; C09D133/00
Foreign References:
| JP2003105270A | 2003-04-09 | |||
| JPH06172451A | 1994-06-21 | |||
| JPH08157537A | 1996-06-18 | |||
| JP2003096377A | 2003-04-03 | |||
| JP2017003520A | 2017-01-05 |
Other References:
See also references of EP 3569668A4
Attorney, Agent or Firm:
SENMYO Kenji et al. (JP)
Download PDF: