Compositions: coating or plastic – Coating or plastic compositions – Alkali metal silicate containing
Reexamination Certificate
2007-10-23
2007-10-23
Brunsman, David M (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Alkali metal silicate containing
C106S635000, C106S900000
Reexamination Certificate
active
10472015
ABSTRACT:
An alkali silicate aqueous solution having intermediate characteristics between water glass and colloidal silica and having a high molar ratio (SiO2/(A2O+B))(A: alkali metal, B: NH3), a high silicon content and a high anionic activity. The alkali silicate aqueous solution has the properties: (A) the molar ratio of silicon to an alkali (SiO2/(A2O+B) is in the range of 4 to 30, and (B) the silicon concentration in terms of an oxide (SiO2concentration) is in the range of 6.8 to 30% by weight. A process for preparing an alkali silicate aqueous solution comprises dealkalizing a starting alkali silicate aqueous solution by means of an electro-dialysis device, and then optionally concentrating the dealkalized solution by a reverse osmosis membrane method.
REFERENCES:
patent: 3969266 (1976-07-01), Iler
patent: 4124471 (1978-11-01), Lieb et al.
patent: 4303487 (1981-12-01), Carlin et al.
patent: 4556466 (1985-12-01), Scott et al.
patent: 4557615 (1985-12-01), Scott et al.
patent: 4976838 (1990-12-01), Mani et al.
patent: 5624651 (1997-04-01), Bass
patent: 1 148 950 (1971-02-01), None
patent: 58-15022 (1983-01-01), None
patent: 03-113249 (2000-11-01), None
Patent Abstract, JP 52-43187 B2 (Asahi Glass Co., Ltd.), Oct. 28, 1997.
Patent Abstracts of Japan, JP 11-061124 A (Kyoka Tsuchi Engineering Kabushiki Kaisha, et al.) Mar. 5, 1999.
Patent Abstracts of Japan, JP 08-038123 A (Yoshio Inoue et al.), Feb. 13, 1996.
Patent Abstracts of Japan, JP 2001-009459 A (Sumitomo Heavy Industries, Ltd.), Jan. 16, 2001.
Patent Abstracts of Japan, JP 05-306112 A (Michio Uemura et al.), Nov. 19, 1993.
Brunsman David M
The Webb Law Firm P.C.
Tososangyo Co., Ltd.
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