... as thickener,stabilizer, emulsifier, excipient, mosture rententive agent, film former, and so on in petroleum industry, coating, building ... machining prop-erties that it takesplace of gel and polyvinyl alcohol as dispersing agent. in addition, itis mainly used ... is widel used as thickener, adhesive, water preserving agent, film-forming agent in construction, building materials, dispersion coating, ...