CELLULOSE DERIVATIVE CHEMICALS, NAMELY, CELLULOSE DERIVATIVE EMULSIFIERS FOR INDUSTRIAL PURPOSES; CELLULOSE DERIVATIVE EMULSION-STABILIZERS FOR INDUSTRIAL PURPOSES; CELLULOSE DERIVATIVE VISCOSITY-MODIFIERS FOR INDUSTRIAL PURPOSES; CELLULOSE DERIVATIVE SUSPENDING AGENTS FOR INDUSTRIAL PURPOSES; CELLULOSE DERIVATIVE DISPERSING AGENTS FOR INDUSTRIAL PURPOSES; CELLULOSE DERIVATIVE GELLING AGENTS FOR INDUSTRIAL PURPOSES; CELLULOSE DERIVATIVE FOAMING AGENTS FOR INDUSTRIAL PURPOSES; CELLULOSE DERIVA...