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    Method for de-coloring shellac, de-colored shellac, compositions comprising same, and uses therefor
    1.
    发明授权
    Method for de-coloring shellac, de-colored shellac, compositions comprising same, and uses therefor 有权
    脱色虫胶，去色虫胶，含有它们的组合物及其用途的方法

    公开(公告)号：US09273229B2

    公开(公告)日：2016-03-01

    申请号：US13942331

    申请日：2013-07-15

    Applicant: d-ANTAEUS

    Inventor： Thi Cong To ,  Thuc Soan Nguyen

    IPC: C09F1/00 ,  A61Q11/00 ,  C09F1/02 ,  A61K6/00 ,  A61Q3/02 ,  A61K8/98

    CPC classification number: C09F1/00 ,  A61K6/0058 ,  A61K8/987 ,  A61K2800/805 ,  A61Q3/02 ,  A61Q11/00 ,  C09F1/02

    Abstract: 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.

    Abstract translation: 一种通过将着色虫胶溶解在包含碱性试剂的水溶液中来生产去色虫胶的方法; 使水溶液中的着色虫胶与足够量的亚氯酸盐接触，以实现虫胶的脱色; 通过用酸中和水溶液沉淀去色虫胶; 并从所述水溶液中回收沉淀的去色虫胶。 所生产的脱色虫胶无毒，适合人体使用。 公开了包含脱色虫胶的牙科组合物，以及脱色虫胶作为食品涂料，指甲油或清漆以及木材清漆的用途。

    METHOD FOR DE-COLORING SHELLAC, DE-COLORED SHELLAC, COMPOSITIONS COMPRISING SAME, AND USES THEREFOR
    2.
    发明申请
    METHOD FOR DE-COLORING SHELLAC, DE-COLORED SHELLAC, COMPOSITIONS COMPRISING SAME, AND USES THEREFOR 有权
    脱色壳，脱色壳，包含其的组合物的方法及其用途

    公开(公告)号：US20140065079A1

    公开(公告)日：2014-03-06

    申请号：US13942331

    申请日：2013-07-15

    Applicant: d-ANTAEUS

    Inventor： Thi Cong To ,  Thuc Soan Nguyen

    IPC: C09F1/00

    CPC classification number: C09F1/00 ,  A61K6/0058 ,  A61K8/987 ,  A61K2800/805 ,  A61Q3/02 ,  A61Q11/00 ,  C09F1/02

    Abstract: 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.

    Abstract translation: 一种通过将着色虫胶溶解在包含碱性试剂的水溶液中来生产去色虫胶的方法; 使水溶液中的着色虫胶与足够量的亚氯酸盐接触，以实现虫胶的脱色; 通过用酸中和水溶液沉淀去色虫胶; 并从所述水溶液中回收沉淀的去色虫胶。 所生产的脱色虫胶无毒，适合人体使用。 公开了包含脱色虫胶的牙科组合物，以及脱色虫胶作为食品涂料，指甲油或清漆以及木材清漆的用途。

    Resin extraction process
    4.
    发明授权
    Resin extraction process 失效
    树脂提取工艺

    公开(公告)号：US3637639A

    公开(公告)日：1972-01-25

    申请号：US3637639D

    申请日：1968-10-28

    Applicant: FRANCIS R ZINNIEL

    Inventor： ZINNIEL FRANCIS R ,  BLOME EUGENE R ,  KIMBALL PHILIP D

    IPC: C09F1/00

    CPC classification number: C09F1/00

    Abstract: A CONTINUOUS PROCESS FOR THE EXTRACTION FROM RESINCONTAINING COAL, OF SUBSTANTIALLY ALL OF THE CONTAINED RESIN. THE PROCESS PROVIDES FOR SUBJECTING RESIN-CONTAINING COAL FINES TO A INTEGRATED SOLVENT-EXTRACTION AND SOLUTION-SEPARATION PROCEDURE FOR OBTAINING BOTH A FIRST QUANITY OF RESIN SOLUTION CONTAINING A MAJOR PORTION OF THE RESIN, AND A MIXTURE OF COAL FINES AND SOLUTION CONTAINING SUBSTANTIALLY ALL OF THE REMAINING PORTION OF THE RESIN; SUBJECTING THE MIXTURE TO A SERIES OF INTEGRATED SOLVENT-DILUTION AND SOLUTION-SEPARATION PROCEDURES FOR OBTAINING BOTH A SECOND OF RESIN SOLUTION CONTAINING SUBSTANTIALLY ALL OF THE REMAINING PORTION OF THE RESIN AND A RESIDUAL MIXTURE OF COAL FINES AND SOLVENT, RECOVERING SUBSTANTIALLY ALL OF THE RESIN CONTAINED IN THE FIRST AND SECOND QUANTIES OF SOLUTION; AND RECOVERING SUBSTANTIALLY ALL OF THE SOLVENT EMPLOYED.

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