Title:
AQUEOUS DISPERSION COMPOSITION FOR PRIMER
Document Type and Number:
WIPO Patent Application WO/2007/119450
Kind Code:
A1
Abstract:
Disclosed is an aqueous dispersion composition which enables to form a primer layer that is excellent in interlayer adhesion with a top coat layer containing a fluororesin and capable of improving hardness and wear resistance of a coating film as a whole. Also disclosed is a coating film structure using such an aqueous dispersion composition. Specifically disclosed is an aqueous dispersion composition for primers for fluororesin coating film layers, which contains (A) a water-soluble, curable polyamideimide and/or polyimide binder polymer, (B) ceramic spherical particles, (C) modified PTFE particles and (D) an aqueous medium. This aqueous dispersion composition for primers is characterized in that the modified PTFE particles (C) have a melt creep viscosity at 380˚C within the range from 2 Χ 109 to 1 Χ 1011 Pa·s, and a standard relative density of not more than 2.170. A primer layer is formed by using such an aqueous dispersion composition for primers, and a top coat layer containing a fluororesin is formed thereon.
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Inventors:
SODA YOSHIHIRO (JP)
TORII HIROSHI (JP)
TORII HIROSHI (JP)
Application Number:
PCT/JP2007/055674
Publication Date:
October 25, 2007
Filing Date:
March 20, 2007
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
SODA YOSHIHIRO (JP)
TORII HIROSHI (JP)
SODA YOSHIHIRO (JP)
TORII HIROSHI (JP)
International Classes:
C09D179/08; B32B27/28; C09D5/00; C09D7/12; C09D127/12; C09D127/18; C09D171/02; B05D7/24
Foreign References:
| JP2001519830A | 2001-10-23 | |||
| JPH07506514A | 1995-07-20 | |||
| JP2002544363A | 2002-12-24 | |||
| JP2005515279A | 2005-05-26 | |||
| JPH05509036A | 1993-12-16 | |||
| JPS5944912B2 | 1984-11-01 | |||
| JPS641711A | 1989-01-06 | |||
| JPH05186532A | 1993-07-27 |
Attorney, Agent or Firm:
ASAHINA, Sohta (2-22 Tanimachi 2-chome, Chuo-ku, Osaka-sh, Osaka 12, JP)
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