Patent ID: 8105691

Claim:
A hydrophilized surface-treated powder prepared by coating the surface of a powder comprising a silicone resin and/or an organic powder with a hydrophilizing agent by its adsorption onto the surface of the powder, wherein the hydrophilizing agent contains a water-soluble polyoxyalkylene glycol derivative, a water-soluble cationic polymer and at least one low-molecular organosilicon derivative selected from dimethylsilanediol hyaluronate, monomethylsilanetriol lactate, methylsilanol mannuronate, and methylsilanol triPEG-8-glyceryl cocoate and the organic powder is at least one selected from PMMA, nylon, polyester, polystyrene, cellulose, silicone elastomer powder, silicone rubber powder, benzoguanamine, ethylene tetrafluoride, polyethylene powder, polypropylene powder, polyurethane powder, metal soap powder, starch powder, N-acylated lysine, an organic pigment, and a composite of at least one of these organic powders described above with a metal oxide and/or a metal hydroxide.