发明名称 |
SHELLAC DISPERSIONS AND COATINGS, AND METHOD OF MAKING |
摘要 |
A method of forming the aqueous-based shellac dispersion includes dissolving a shellac solution in a basic aqueous solvent to form a shellac solution and subsequently combining the shellac solution with an acidic aqueous solution, whereby the shellac precipitates to form the aqueous-based shellac dispersion. A film can be formed by applying the shellac dispersion to a suitable surface and exposing the dispersion to conditions which cause a substantial portion of the shellac particles in the dispersion to fuse, thereby forming a shellac film on the surface. The shellac film does not include any organic solvent for the shellac or any amine-containing shellac salt. A plasticizer can be employed to form a continuous shellac coating on a substrate at significantly reduced temperatures. |
申请公布号 |
WO9502339(A1) |
申请公布日期 |
1995.01.26 |
申请号 |
WO1994US07573 |
申请日期 |
1994.07.06 |
申请人 |
OPTA FOOD INGREDIENTS, INC. |
发明人 |
COOK, RICHARD, B. |
分类号 |
A21D13/00;A21D13/08;A23G3/34;A23L1/00;A61K9/28;A61K9/30;C09D193/02 |
主分类号 |
A21D13/00 |
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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