FIELD: polymer production. SUBSTANCE: process involves condensation of urea-formaldehyde concentrate and urea in presence of buffer additive, in particular still residue of monoethanolamine purification stage in ammonia production, which is added in alkali stage before first portion of urea is added. Resultant resin is further modified with amine and cooled. EFFECT: optimized synthesis process conditions and improved quality of product. 1 tbl, 4 ex
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