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Method for producing siloxane-modified chitosan, siloxane-modified chitosan, emulsifier, and emulsion composition

机译：硅氧烷改性的壳聚糖的生产方法，硅氧烷改性的壳聚糖，乳化剂和乳液组合物

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摘要

PROBLEM TO BE SOLVED: To provide a method for producing siloxane-modified chitosan capable of producing siloxane-modified chitosan suitable as an emulsifier capable of preparing emulsion such as a cosmetic excellent in emulsion stability, with good reaction efficiency.SOLUTION: A method for producing siloxane-modified chitosan includes a step of reacting powdery chitosan which has a weight average molecular weight of 2,000-200,000 and a degree of deacetylation of 70-100%, and has a grain size to pass a sieve with 16 mesh with a siloxane compound represented by general formula (1): R-Si(R){[(OSi(R))]-R}to obtain a siloxane modified chitosan in which a substituent derived from a siloxane compound is introduced into chitosan, where an introduction ratio of the substituent in the siloxane-modified chitosan is 0.01-0.4 mol per 1 mol of a pyranose ring constituting the chitosan.SELECTED DRAWING: None

机译：解决的问题：提供一种能够制造硅氧烷改性的壳聚糖的方法，该硅氧烷改性的壳聚糖能够用作适于制备乳液的乳化剂的硅氧烷改性的壳聚糖，所述乳液如乳液稳定性优异的化妆品，并且具有良好的反应效率。硅氧烷改性的壳聚糖包括使粉末状的壳聚糖与所代表的硅氧烷化合物反应的步骤，所述壳聚糖的重均分子量为2,000-200,000，脱乙酰度为70-100％，且其粒径可通过16目筛通过通式（1）：R-Si（R）{[（（OSi（R））]-R}获得硅氧烷改性的壳聚糖，其中将衍生自硅氧烷化合物的取代基引入到壳聚糖中，其中引入比例为硅氧烷改性的壳聚糖中的取代基为每1摩尔构成壳聚糖的吡喃糖环为0.01-0.4摩尔。

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公开/公告号JP6636881B2

专利类型
公开/公告日2020-01-29

原文格式PDF
申请/专利权人大日精化工業株式会社;信越化学工業株式会社;
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申请/专利号JP20160171473
发明设计人小林誠幸;一宮洋介;作田晃司;安藤裕司;
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申请日2016-09-02
分类号C08B37/08;A61K8/73;C08L5/08;C08L83/04;
国家 JP
入库时间 2022-08-21 11:32:32

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