Paper that contains chemically substituted cellulose

Details Paper that contains chemically substituted cellulose Paper that contains chemically substituted cellulose

C - Chemistry, Metallurgy

08

B

8/93.43

C08B 15/06 (2006.01) A01G 9/10 (2006.01) D21H 17/06 (2006.01) D21H 17/39 (2006.01)

Patent

CA 1247307

(57) Abstract of the Disclosure A paper material has been invented that contains cellulose substituted by means of N-methylol compounds. As N-methylol compounds may be used, e.g., reaction products of urea, glyoxal, and formaldehyde, methylolated melamines, and N-methylol-acrylamide copolymers. The paper is manufactured best by impreg- nating paper with an aqueous solution or dispersion of a N-methylol compound and by drying it at 130 to 200°C in order to produce condensation. Papers in accordance with the invention have good properties of strength against decomposition and wet strength, which properties can be adjusted readily by varying the degree of substitution or cross-linking of the cellulose. The papers axe particularly well suitable, e.g., for the manufacture of plant-growing pots and corrugated fibreboard.

454769

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