FOAMING AGENT FOR PREPARING POROZED MATERIALS Russian patent published in 2003 - IPC

FIELD: building materials. SUBSTANCE: invention relates to the field of stable dispersed foam systems that can be used in technology for preparing articles with porozed structure based on clay, cement, gypsum, technogenic raw and so on. In foaming agent used for preparing porozed materials comprising tall pitch containing fatty acids, resin acids, neutral substances and emulsified with solution of Na₂CO₃ and water tall pitch is used of the following composition, wt.-%: fatty acids, 28-41; resin acids, 6-26; neutral substances, 24-38; oxidized substances, 12-29 taken in the following ratio of components, wt. -%: tall pitch, 10-12; Na₂CO₃, 2-2.5; water, 85.5-88. EFFECT: improved foam forming capacity, prolonged times of foam formation. 2 tbl, 1 ex