Process for producing liquefying agents for mineral binders

Details Process for producing liquefying agents for mineral binders Process for producing liquefying agents for mineral binders

C - Chemistry, Metallurgy

08

G

402/100, 134/30,

C08G 16/02 (2006.01) C04B 24/22 (2006.01)

Patent

CA 1331417

ABSTRACT OF THE DISCLOSURE The present invention relates to a process for produc- ing liquefying agents for mineral binders based on water-soluble condensation products of naphthalene or alkyl naphthalenes with formaldehyde. The present invention is characterized in that during the condensation reaction and on reaching a basic viscos- ity of 4000 to 8000 mPas, preferably at 5000 to 7500 mPas, the viscosity of the reaction mixture is reduced by adding water.

576579

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