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Title:
HIGHLY DURABLE ANTIFOGGING COATING FILM AND COATING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2017/159564
Kind Code:
A1
Abstract:
The present invention pertains to a coating film, and more particularly, to an antifogging coating film having excellent antifogging properties, ability to retain antifogging properties, and water resistance. The coating film according to the present invention contains a metal oxide (A) and a hydrophilic compound (B), wherein the elemental concentration ratio (C1s/M), which is between the element C and a metal element and which is obtained from a metal (M) spectrum derived from the metal oxide and a C1s spectrum in an elemental analysis of the surface using XPS, is within the range of 0.2-10. The relative elemental concentration of the element C obtained from a C1s spectrum derived from carbon-oxygen bonds and/or carbon-nitrogen bonds in elemental analysis of the surface using XPS may be within the range of 5-50 atomic%. The metal oxide may be colloidal silica. The coating film according to the present invention can be particularly preferably used as an antifogging coating film and a coating film for automotive exterior parts.

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Inventors:
ISEDA KAZUYA (JP)
TAKANOHASHI HIROAKI (JP)
HIROSE JUNICHI (JP)
Application Number:
PCT/JP2017/009725
Publication Date:
September 21, 2017
Filing Date:
March 10, 2017
Export Citation:
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Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C09D201/00; C09D5/02; C09D5/16; C09D7/12
Domestic Patent References:
WO2010104146A12010-09-16
WO2005075583A12005-08-18
WO2012161330A12012-11-29
WO2015008672A12015-01-22
WO2010104146A12010-09-16
Foreign References:
JP2016016663A2016-02-01
JPS58193185A1983-11-10
JP2011189273A2011-09-29
JP2010070607A2010-04-02
JP2011192397A2011-09-29
JP2017061598A2017-03-30
JPS4812902B11973-04-24
JPS6274452A1987-04-06
JPH02172535A1990-07-04
JPH0724329A1995-01-27
JPH0889799A1996-04-09
JPH0889800A1996-04-09
JPH0889804A1996-04-09
JPH08198061A1996-08-06
JPH09248465A1997-09-22
JPH1099694A1998-04-21
JPH10244165A1998-09-14
Other References:
WERNER STOBER ET AL., J. COLLOID AND INTERFACE SCI., vol. 26, 1968, pages 62 - 69
RICKEY D. BADLEY ET AL., LANG MUIR, vol. 6, 1990, pages 792 - 801
JOURNAL OF THE JAPAN SOCIETY OF COLOUR MATERIAL, vol. 61, no. 9, 1988, pages 488 - 493
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, P.C. (JP)
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