METHOD OF PRODUCING POROUS, FILM-TYPE MATERIALS BASED ON CARBOXYMETHYL CELLULOSE Russian patent published in 2014 - IPC C08J5/18 B01D71/02 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing porous, film-type materials based on carboxymethyl cellulose and can be used in producing films, artificial soil or in medicine, for example, as a means of preventing formation of post-surgical adhesion or as water-absorbing materials for removing tears in ophthalmology. The method involves dissolving carboxymethyl cellulose in aqueous hydrochloric acid, followed by drying. Drying is carried out at temperature of 40-70°C or at low pressure and initial temperature of (-50)-(-30)°C and heat treatment is carried out on air at temperature of 110-150°C for 30-360 minutes.

EFFECT: method simplifies the process, improves strength and elastic properties of the film-type, porous material based on carboxymethyl cellulose, improves effectiveness of anti-adhesion action, excludes polymers which, upon decomposition, can contaminate plants with toxic products of their decomposition and improves moisture-retention capacity.

1 tbl, 2 ex