发明名称 |
METHOD FOR DE-COLORING SHELLAC, DE-COLORED SHELLAC, COMPOSITIONS COMPRISING SAME, AND USES THEREFOR |
摘要 |
A method for producing de-colored shellac by dissolving colored shellac in an aqueous solution comprising an alkaline agent; contacting the colored shellac in the aqueous solution with a sufficient amount of a chlorite salt to achieve de-coloration of the shellac; precipitating the de-colored shellac by neutralizing the aqueous solution with an acid; and recovering the precipitated de-colored shellac from said aqueous solution. The de-colored shellac produced is non-toxic and suitable for human use. Dental compositions comprising the de-colored shellac are disclosed, as well as uses of the de-colored shellac as a food product coating, a nail polish or varnish, and a wood varnish. |
申请公布号 |
US2014065079(A1) |
申请公布日期 |
2014.03.06 |
申请号 |
US201313942331 |
申请日期 |
2013.07.15 |
申请人 |
D-ANTAEUS |
发明人 |
TO THI CONG;NGUYEN THUC SOAN |
分类号 |
C09F1/00 |
主分类号 |
C09F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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