Composition and method for hardening an aqueous alkali metal sil

Details Composition and method for hardening an aqueous alkali metal sil Composition and method for hardening an aqueous alkali metal sil

1989-09-11

1991-01-08

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Alkali metal silicate containing

106 383, 106 3835, 106634, 106632, 106633, 106635, 106617, C04B 2826

Patent

active

049832182

ABSTRACT:
Aqueous solutions of alkali metal silicate are hardened using blends of alkylene carbonates and aliphatic alcohols such as alkylene diols, polyalkylene glycols, or hydroxyalkyl ethers. The aliphatic alcohol decreases the set time from that obtained using alkylene carbonate alone. The hardened alkali metal silicate compositions are useful as binders in the preparation of foundry molds or in other applications requiring agglomeration of particulate matter.

REFERENCES:
patent: 3137046 (1964-06-01), Barlow et al.
patent: 4056937 (1977-11-01), Suzuki
patent: 4213785 (1980-07-01), Blanc et al.
patent: 4233076 (1980-11-01), Blanc et al.

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