Title: Production method of bleached shellac
Application Number: 92105048 Application Date: 1992.06.21
Publication Number: 1072437 Publication Date: 1993.05.26
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C09F1/02
Applicant(s) Name: Resources Insect Inst., Chinese Academy of Forest Address: 650216
Inventor(s) Name: Li Huixian
Attorney & Agent: YANG HONGZHEN
Abstract:
     This invention relates to a prodn. process of bleanched shellac by solvent method; it involves dissolution, filtering, dewaxing, bleaching, neutralization, washing with water, pressing it into pieces and drying. Said bleached shellac has advantages of long storage period, fine colour stability and a light-colour. For the needs of the market it can be prepared with a great variety of products.
Time: 7