abstract |
amphiphilic graft polymer, and process for preparing graft polymers the water-soluble polyalkylene oxide-based amphiphilic graft polymers (a) as a graft base and side chain formed by polymerization of a vinyl ester component (b) , and polymers having an average of <243> graft sites per 50 alkylene oxide units and average molar masses m ~ w ~ 3,000 to 100,000. |