PRODUCTION METHOD FOR READILY DISPERSIBLE CELLULOSE COMPOSITION, READILY DISPERSIBLE CELLULOSE COMPOSITION, CELLULOSE DISPERSION RESIN COMPOSITION, AND PRODUCTION METHOD FOR WATER-BASED DISPERSANT FOR CELLULOSE

摘要

An object of the present invention is to provide a technologyof dispersing cellulose readily in a hydrophobic substance such asa resin by treating cellulose being a hydrophilic substance in asystem that contains water as a main medium with a polymer dispersant,which has been developed for dispersing a fine and hydrophobicsubstance such as a pigment, in a simple and efficient manner withoutconducting surface modification of nanocellulose or other treatments.The object is solved by a process for producing a readily dispersiblecellulose composition, the process including dissolving a polymerdispersant having a block copolymer structure having aresin-affinitive segment A and a cellulose-adsorptive segment B ina hydrophilic organic solvent solution, adding a surface active agentto the resultant solution, thereafter adding water to the resultantmixture to prepare an aqueous dispersion treatment agent containingthe polymer dispersant, and adding the obtained aqueous dispersiontreatment agent to cellulose in a water-containing state or in a drystate, thereby obtaining a readily dispersible cellulose composition.The object is also solved by a process for producing an aqueousdispersion treatment agent for use in the process for producing areadily dispersible cellulose composition, the readily dispersiblecellulose composition, and a cellulose-dispersed resin compositionusing the readily dispersible cellulose composition.