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    • 5. 发明公开
    • Gel sheet and preparation method thereof
    • Gel-Folie und Verfahren zu ihrer Herstellung
    • EP1543828A1
    • 2005-06-22
    • EP04257884.9
    • 2004-12-16
    • Shin-Etsu Chemical Co., Ltd.
    • Fukasawa, Miyuki, c/o Shin-Etsu Chem. Co. Ltd.Hayakawa, Kazuhisa, c/o Shin-Etsu Chem. Co. Ltd.
    • A61K9/70A61K7/48
    • A61Q19/00A61K8/0208A61K8/042A61K8/731A61Q90/00
    • Provided are a gel sheet comprising a polymer, having a high water content, having high strength and being harmless to the body; a cosmetic moisturizing sheet providing comfortable touch feeling to the skin and exhibiting good adhesion to the skin; and a preparation method of these sheets. More specifically, provided is a gel sheet comprising a low-substituted cellulose ether having a molar substitution degree of from 0.05 to 1.0, water-soluble cellulose ether having a molar substitution degree of from 1.1 to 1.4, and water. Also provided is a method for preparing a gel sheet, comprising the steps of casting an aqueous alkaline solution comprising a low-substituted cellulose ether having a molar substitution degree of from 0.05 to 1.0, and a water-soluble cellulose ether having a molar substitution degree of from 1.1 to 1.4 on a plate, coagulating the cast solution, and washing the cast coagulated solution.
    • 提供一种凝胶片,其包含具有高水分含量的聚合物,具有高强度并对身体无害; 一种美容保湿片,其对皮肤提供舒适的触感并且对皮肤表现出良好的粘附性; 和这些片材的制备方法。 更具体地,提供了包含摩尔取代度为0.05〜1.0的低取代纤维素醚,摩尔取代度为1.1〜1.4的水溶性纤维素醚和水的凝胶片。 还提供了一种制备凝胶片的方法,包括以下步骤:浇铸含有摩尔取代度为0.05至1.0的低取代纤维素醚的碱性水溶液和具有摩尔取代度的水溶性纤维素醚 在板上1.1至1.4,凝结浇铸溶液,并洗涤流延的凝固溶液。