Compositions: coating or plastic – Coating or plastic compositions – Alkali metal silicate containing
Reexamination Certificate
2005-09-13
2005-09-13
Brunsman, David (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Alkali metal silicate containing
Reexamination Certificate
active
06942725
ABSTRACT:
The invention provides a transparent and tenacious coating film using an inorganic paint composition prepared by adding a borate salt into an alkali metal silicate, and further mixing thereto lepidoblastic transparent silica with a thickness of 0.01 to 0.5 μm and a surface diameter of 2 to 5 μm. The alkali metal silicate is solidified with metal ions issued from the borate salt to form a coating film, which contains a glass formed by solidifying dissolved boric acid in the coating film. The coating film can be made tenacious without impairing transparency by dispersing many flakes of transparent silica as laminated layers.
REFERENCES:
patent: 4415364 (1983-11-01), Naito et al.
patent: 4504314 (1985-03-01), Barker et al.
patent: 4755226 (1988-07-01), Friedemann et al.
Yamada Ichiya
Yamada Koushi
Brunsman David
Flynn ,Thiel, Boutell & Tanis, P.C.
Wakou Co., Ltd.
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