FIELD: paper-and-pulp industry. SUBSTANCE: composition includes fibrous half-finished product, block-copolymer of polyhexamethylene-guanidine and polyethylenimine (at ratio between 100;1 and 1:100) as biocide, and water, said block-copolymer having molecular weight between 5000 and 100000. Fibrous half-finished product is cellulose, wood-pulp, or waste paper. Polyhexamethylene- guanidine is used in its chloride or phosphate form. EFFECT: improved paper characteristics and antimicrobial activity. 4 cl, 8 tbl, 5 ex
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Authors
Dates
2002-04-27—Published
2001-05-28—Filed