Stock material or miscellaneous articles – Composite – Of polyamidoester
Reexamination Certificate
2007-06-22
2011-10-11
Tran, Thao T. (Department: 1787)
Stock material or miscellaneous articles
Composite
Of polyamidoester
C524S488000
Reexamination Certificate
active
08034456
ABSTRACT:
The present invention provides a surface-treated metal material having a film formed on at least a portion of a surface of a metal material, the film containing at least polyurethane resin and silicon oxide, and a metal surface treatment agent used to obtain the surface-treated metal material. The polyurethane resin contains one or more of siloxane bond, dehydration-condensation bond of silanol group and different functional group, and silanol moiety, and urea bond. The sum of the siloxane bond, the dehydration-condensation bond of silanol group and different functional group, total amount of the silanol moiety, and the silicon oxide falls within a range of equal to or more than 1.6 wt % to equal to or less than 25 wt % for solids of the film. The ratio of the total amount of urea bond and urethane bond to the total amount of resin components falls within a range of equal to or more than 0.1 wt % to equal to or less than 10 wt %.
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Fuda Masahiro
Kanai Hiroshi
Kosuge Hiroshi
Morishita Atsushi
Tawa Tsutomu
Kenyon & Kenyon LLP
Mitsui Chemicals Inc.
Nippon Steel Corporation
Tran Thao T.
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