FIELD: processing of leather waste. SUBSTANCE: cryocross-linked composition has, mas. p. : dispersed nontanned collagen-containing raw prepared from cattle hide 0.005-0.5; water-soluble melamine-formaldehyde resin 0.3-1.5; scattered waste of leather tanned with chrome salts 3-6; sodium carbonate 0.5-1.5, and water 92-96.6. Value pH of composition is 7-10. EFFECT: enhanced quality of composition. 1 tbl
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