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Patent Searching and Data


Title:
COMPOSITION FOR ADHESIVE LAYER FORMATION FOR USE FOR STEEL SHEET HAVING SURFACE TREATED WITH MULTIPLE LAYERS
Document Type and Number:
WIPO Patent Application WO/2011/030439
Kind Code:
A1
Abstract:
Provided is a composition for forming an adhesive layer which has extremely tenacious adhesion that is neither influenced by the kind of steel sheet or the kind of coating material nor affected by various environments in which the steel sheet is to be used or by various forms into which the steel sheet is to be worked. The composition for forming an adhesive layer is used for obtaining a steel sheet having a surface treated with multiple layers, the treated steel sheet comprising a steel sheet, an adhesive layer formed on at least one surface thereof, and an upper layer and/or interlayer formed on the adhesive layer, the upper layer and/or interlayer having an attractive appearance and containing an anticorrosive pigment and/or a color pigment. The composition for forming an adhesive layer comprises an aqueous medium containing both a cationic urethane resin and a silicon compound represented by general formula (I), the composition having been configured so that the ratio of the temperature (Tc) at which the mixture of the cationic urethane resin and the silicon compound has a maximum logarithmic damping ratio when examined by the rigid pendulum type free vibration decay method to the temperature (Ta) at which the cationic urethane resin has a maximum logarithmic damping ratio when examined alone by the rigid pendulum type free vibration decay method, Tc/Ta, is 1.2-3.0.

Inventors:
YAMAGUCHI HIDEHIRO (JP)
YAMAMOTO SHIGEKI (JP)
IKO TOMOHIRO (JP)
LI WEI (JP)
Application Number:
PCT/JP2009/065902
Publication Date:
March 17, 2011
Filing Date:
September 11, 2009
Export Citation:
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Assignee:
NIHON PARKERIZING (JP)
YAMAGUCHI HIDEHIRO (JP)
YAMAMOTO SHIGEKI (JP)
IKO TOMOHIRO (JP)
LI WEI (JP)
International Classes:
C09D5/00; C09D7/12; C09D175/00; B05D1/36; B05D5/10; B05D7/24; B32B15/095; C23C28/00
Foreign References:
JP2004018887A2004-01-22
JP2006152436A2006-06-15
JP2007204847A2007-08-16
JP2001059184A2001-03-06
JP2004204333A2004-07-22
JP2000173816A2000-06-23
JPH02305995A1990-12-19
JPH09234414A1997-09-09
JP2009275287A2009-11-26
Attorney, Agent or Firm:
YOSHIMURA, SHUNICHI (JP)
Toshikazu Yoshimura (JP)
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