| 摘要 |
PROBLEM TO BE SOLVED: To obtain a water-soluble auxiliary which has high melt-kneadability with a resin and can easily separate a resin molded product of a specified shape formed by melt-kneading or subsequent molding processing, and its use. SOLUTION: The water-soluble auxiliary (A) comprises an oligosaccharide (A1) and a water-soluble plasticizing component (sugars or sugar alcohols) (A2) for plasticizing the oligosaccharide (A1), contains substantially no water and can be kneaded with a meltable organic solid component (B) such as a resin component to be melt-molded. The water-soluble auxiliary (A) exhibits temperature dependent characteristics in its shear stress that it has a region where the shear stress increases by at least 5 times corresponding to the temperature drop of 20°C. The water-soluble auxiliary (A) has a high shear viscosity in a molten state, high solubility in water and a small aqueous solution viscosity. The weight ratio of the oligosaccharide (A1) to the plasticizing component (A2) (the oligosaccharide (A1)/the plasticizing component (A2)) is 99/1-50/50. COPYRIGHT: (C)2005,JPO&NCIPI
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