LUBRICANT FOR THE RUBBER MOLDS Russian patent published in 2007 - IPC B28B7/38 

FIELD: building materials industry; production of the lubricants for the rubber molds.

SUBSTANCE: the invention is pertaining to the field of building materials industry, in particular, to the lubricants for the rubber molds at production of the concrete articles and the fine concrete. The technical result of the invention is the increased quality of the surface of the concrete articles, the improved stability of the lubricant, the reduced lubricant cost. The lubricant for the rubber molds contains (in mass %): the spent engine oil - 10.0-30.0, the saponified willow pitch - 1.0-3.0, carboxymethylcellulose - 0.0001-0.0003, water - the rest.

EFFECT: the invention ensures the increased quality of the surface of the concrete articles, the improved stability of the lubricant, the reduced lubricant cost.