Title:
DEGRADABLE LIQUID BAND-AID AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/133628
Kind Code:
A1
Abstract:
A degradable liquid Band-Aid, comprising the following components in parts by weight: 30-40 parts of keratin, 15-30 parts of methyl cellulose, 10-25 parts of carboxymethyl chitosan, 2-6 parts of polyvinylpyrrolidone-vinyl acetate copolymer, 0.5-1.5 parts of glycerin, 25-30 parts of ethanol, 30-40 parts of ethyl acetate, 15-25 parts of diacetone alcohol, and 20-30 parts of distilled water. Degradable keratin, methylcellulose, carboxymethyl chitosan and polyvinylpyrrolidone-vinyl acetate copolymer are used together as film-forming agents, so that a film-forming body is very elastic, has good tensile strength and is degradable.
Inventors:
WU KE (CN)
Application Number:
PCT/CN2020/137861
Publication Date:
June 30, 2022
Filing Date:
December 21, 2020
Export Citation:
Assignee:
JIANGSU QILIKANG SKIN PHARMACEUTICAL CO LTD (CN)
International Classes:
A61L26/00; A61L15/28
Domestic Patent References:
| WO2010107163A1 | 2010-09-23 |
Foreign References:
| CN102406959A | 2012-04-11 | |||
| CN108744027A | 2018-11-06 | |||
| CN101920042A | 2010-12-22 | |||
| CN110201218A | 2019-09-06 |
Other References:
PINOTTI, A. GARCIA, M.A. MARTINO, M.N. ZARITZKY, N.E.: "Study on microstructure and physical properties of composite films based on chitosan and methylcellulose", FOOD HYDROCOLLOIDS, ELSEVIER BV, NL, vol. 21, no. 1, 1 January 2007 (2007-01-01), NL , pages 66 - 72, XP005664089, ISSN: 0268-005X, DOI: 10.1016/j.foodhyd.2006.02.001
TANABE, T. OKITSU, N. TACHIBANA, A. YAMAUCHI, K.: "Preparation and characterization of keratin-chitosan composite film", BIOMATERIALS, ELSEVIER, AMSTERDAM, NL, vol. 23, no. 3, 1 February 2002 (2002-02-01), AMSTERDAM, NL , pages 817 - 825, XP004348093, ISSN: 0142-9612, DOI: 10.1016/S0142-9612(01)00187-9
TANABE, T. OKITSU, N. TACHIBANA, A. YAMAUCHI, K.: "Preparation and characterization of keratin-chitosan composite film", BIOMATERIALS, ELSEVIER, AMSTERDAM, NL, vol. 23, no. 3, 1 February 2002 (2002-02-01), AMSTERDAM, NL , pages 817 - 825, XP004348093, ISSN: 0142-9612, DOI: 10.1016/S0142-9612(01)00187-9
Attorney, Agent or Firm:
CHINA FARFIR INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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