Composition and method for hardening an aqueous alkali metal...

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

C - Chemistry, Metallurgy

09

J

25/104, 6/222

C09J 1/02 (2006.01) B28B 7/34 (2006.01) B28B 7/40 (2006.01) C09J 11/02 (2006.01)

Patent

CA 2024059

ABSTRACT OF THE DISCLOSURE 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.

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