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Title:
UNDERCOAT COATING COMPOSITION FOR CONCRETE FORM AND CONCRETE FORM COATED WITH THE SAME
Document Type and Number:
Japanese Patent JP2014015513
Kind Code:
A
Abstract:

To provide a coating composition for a concrete form, not causing warp, run-away and twisting of material when applied to a poor quality material such as a needle-leaf tree plywood, and excellent in productivity, water resistance, crack resistance and separator hole processability.

A coating composition for a concrete form is produced by heating and combining (A) 100 pts.wt. of a moisture-curable polyurethane hot-melt having a melting point of 40 to 100°C, 1 to 10 wt.% of a free isocyanate group and a tack-free time of coating which is coated on a specimen with dissolving at 120°C of 30 seconds to 10 minutes and (B) a composition obtained by combining 60 to 480 pts.wt. of an inorganic filler having an average particle size of 0.5 to 90 μm, with 20 to 50 wt.%, based on the inorganic filler, of one or more kind selected from a group consisting of a tackifier, polyol, a plasticizer, and melting and coating by a coating machine for heat-coating. A concrete form coated with the coating composition is also provided.


Inventors:
SHOHARA TAKAAKI
NAKASONE MASATO
YAMAZAKI TAMIO
NISHIMURA ATSUSHI
Application Number:
JP2012152694A
Publication Date:
January 30, 2014
Filing Date:
July 06, 2012
Export Citation:
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Assignee:
CHEMICAL KK J
International Classes:
C09D175/04; C09D5/00; C09D7/12; E04G9/04; E04G9/10
Domestic Patent References:
JPH09221627A1997-08-26
JPH02182774A1990-07-17
JPH0232189A1990-02-01
JPH09227856A1997-09-02
JP2006212546A2006-08-17
JP2003313503A2003-11-06
JP2000167814A2000-06-20
JPH09221627A1997-08-26
JPH02182774A1990-07-17
JPH0232189A1990-02-01
JPH09227856A1997-09-02
JP2006212546A2006-08-17
JP2003313503A2003-11-06
JP2000167814A2000-06-20
Attorney, Agent or Firm:
Calyx
Miyazaki Yoshio
Kaoru Onozuka
Tsutomu Kato