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    Process for producing a fine powder of silk fibroin
    1.
    发明授权
    Process for producing a fine powder of silk fibroin 失效
    生产丝素蛋白粉的方法

    公开(公告)号：US4233212A

    公开(公告)日：1980-11-11

    申请号：US79864

    申请日：1979-09-28

    申请人： Kiyoshi Otoi ,  Yukio Horikawa

    发明人： Kiyoshi Otoi ,  Yukio Horikawa

    IPC分类号： C08H1/00 ,  A61K8/64 ,  A61K8/96 ,  A61K38/17 ,  A61K47/42 ,  A61Q1/12 ,  C07K14/435 ,  C08J3/14 ,  C08L89/00 ,  C07G7/00

    CPC分类号： A61Q1/12 ,  A61K8/64 ,  C07K14/43586 ,  C08L89/00

    摘要： A process for producing a fine powder of high-purity silk fibroin in nonfibrous and particulate form is disclosed. The process comprises dissolving a degummed silk material in at least one solvent selected from the group consisting of an aqueous cupri-ethylenediamine solution, an aqueous ammoniacal solution of cupric hydroxide, an aqueous alkaline solution of cupric hydroxide and glycerol, an aqueous lithium bromide solution, an aqueous solution of the chloride, nitrate or thiocyanate of calcium, magnesium or zinc, and an aqueous sodium thiocyanate solution; adding a coagulating salt to the resulting aqueous silk fibroin solution having a silk fibroin concentration of from 3 to 20% by weight to coagulate and precipitate the silk fibroin; dehydrating and drying the gel so formed; and then pulverizing the resulting powder. Alternatively, the process comprises dissolving a degummed silk material in a solvent as defined above; dialyzing the resulting aqueous silk fibroin solution; subjecting the dialyzed aqueous silk fibroin solution having a silk fibroin concentration of from 3 to 20% weight to at least one treatment for coagulating and precipitating the silk fibroin, the treatment being selected from the group consisting of the addition of a coagulating salt, aeration, coagulation at the isoelectric point, exposure to ultrasonic waves, and agitation at high shear rate; dehydrating and drying the gel so formed; and then pulverizing the resulting powder. The fine powder of silk fibroin thus obtained is particularly useful as an additive for cosmetic preparations.

    摘要翻译： 公开了以非纤维和微粒形式生产高纯度丝素蛋白的细粉末的方法。 该方法包括将脱胶丝材料溶解在至少一种溶剂中，所述溶剂选自乙酸乙二胺水溶液，氢氧化铜水溶液，氢氧化铜和甘油水溶液，溴化锂水溶液， 钙，镁或锌的氯化物，硝酸盐或硫氰酸盐的水溶液和硫氰酸钠水溶液; 向所得的丝素蛋白浓度为3〜20重量％的水性丝素蛋白溶液中加入凝固盐，使丝素蛋白凝结并沉淀; 脱水干燥凝胶如此形成; 然后粉碎所得粉末。 或者，该方法包括将脱胶丝材料溶解在如上所定义的溶剂中; 透析所得水性丝素蛋白溶液; 将丝素蛋白浓度为3〜20重量％的透析的水性丝素蛋白溶液进行至少一种治疗以使丝素蛋白凝结和沉淀的处理，所述处理选自加入凝结盐，曝气， 在等电点凝固，暴露于超声波，并以高剪切速率搅拌; 脱水干燥凝胶如此形成; 然后粉碎所得粉末。 由此得到的丝素蛋白粉特别可用作化妆品制剂的添加剂。

    Makeup compositions in cake form including fibroin-coated and oily material-coated pigments
    3.
    发明授权
    Makeup compositions in cake form including fibroin-coated and oily material-coated pigments 失效
    蛋糕形式的化妆组合物，包括丝心蛋白涂层和油性材料涂覆的颜料

    公开(公告)号：US4390524A

    公开(公告)日：1983-06-28

    申请号：US242803

    申请日：1981-03-11

    申请人： Toshihiro Nasuno ,  Kiyoshi Otoi

    发明人： Toshihiro Nasuno ,  Kiyoshi Otoi

    IPC分类号： A61K8/18 ,  A61K8/00 ,  A61K8/11 ,  A61K8/25 ,  A61K8/29 ,  A61K8/31 ,  A61K8/34 ,  A61K8/36 ,  A61K8/37 ,  A61K8/64 ,  A61K8/89 ,  A61K8/891 ,  A61K8/92 ,  A61K8/97 ,  A61K8/98 ,  A61Q1/00 ,  A61Q1/02 ,  A61Q1/10 ,  A61Q1/12 ,  A61K7/02 ,  A61K7/021 ,  A61K7/025 ,  A61K7/035

    CPC分类号： A61K8/64 ,  A61K8/11 ,  A61Q1/02 ,  A61Q1/10 ,  A61Q1/12 ,  A61K2800/412 ,  A61K2800/43

    摘要： A makeup composition is disclosed which consists essentially of a homogeneous mixture of a fibroin-coated pigment comprising a carrier pigment in the form of finely divided particles whose surfaces are substantially coated with a film of regenerated fibroin and an oily material-coated pigment comprising a carrier pigment in the form of finely divided particles whose surfaces are substantially coated with an oily material and which is in the form of powder (i.e., loose powder) or a cake (i.e., pressed powder). This makeup composition in powder or cake form has excellent properties such as adhesion to the skin, moisture retention, durability of the makeup, fragrance retention, stability and the like, causes no irritation to the skin, and can give an agreeable feeling (i.e., a moist and silkily smooth feeling) and a natural silk-like gloss to the skin. In particular, the makeup composition in cake form can be smoothly applied to the skin during all seasons by using a wet applicator (e.g., a wet puff) and/or a dry applicator (e.g., a dry puff). It is so stable that no agglomeration or caking of its particles results.

    摘要翻译： 公开了一种化妆组合物，其基本上由丝心蛋白包被的颜料的均匀混合物组成，其包含细颗粒形式的载体颜料，其表面基本上涂覆有再生丝心蛋白的膜和油性材料涂覆的颜料，其包含载体 其表面实质上涂覆有油性材料并且呈粉末形式（即松散粉末）或饼状物（即压粉））的细碎颗粒形式的颜料。 这种粉末或蛋糕形式的化妆组合物具有优异的性质，例如对皮肤的粘附，保湿性，化妆品的耐久性，香味保持性，稳定性等，对皮肤没有刺激性，并且可以产生舒适的感觉（即， 潮湿和丝滑的感觉）和天然丝状光泽的皮肤。 特别地，蛋糕形式的化妆组合物可以通过使用湿敷剂（例如，湿粉剂）和/或干燥涂抹器（例如，干燥的粉扑）在所有季节期间平滑地施用于皮肤。 它是如此稳定，不会导致其颗粒的聚集或结块。