| 摘要 |
The present invention relates to a film-shape soap comprising (a) a water soluble polymer and (b) a soap; said water soluble polymer is a polyester of polyether polyol having an average molecular weight of more than about 1,000 and a polycarboxylic acid, and has a weight average molecular weight of not less than about 20,000, which has a rapid soluble time in water in spite of a lower equilibrium moisture content, excellent washability, little stimulation to a skin, flexible (not brittle) and stable properties, and is suitable for a portable type toilet soap, disposable soap and the like.
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