Stearic Acid → Ammonium Stearate

Participants

Reaction Steps

50 g. of Gelvatol 1-90 polyvinylalcohol, 40 g. of Acrysol WS-32 acrylic polymer and 1375 ml. of water was heated to dissolve the solids until a clear solution was obtained. 250 g. of stearic acid was added which melted and dispersed in the stirred solution followed by 115 ml. of ammonium hydroxide (28% solution) which was added dropwise to the stirred dispersion of stearic acid in polymer solution. A gel of ammonium stearate was formed. 100 g. of calcium chloride dissolved in 100 ml. of water was then added to the vigorously stirred gel to precipitate the calcium soap. 350 ml. of water, 200 g. of Casco PR 247 (Borden Chemical trademark-- a cationic ureaformaldehyde wet strength resin), and 250 g. Bondfast adhesive (polyvinylacetate emulsion with 35% solids) were added and blending continued until a smooth consistency was obtained. The product was a thixotropic smooth creamy white suspension. The composition is as follows:

Provenance & Evidence