The name lac is said to derive from lakh the sanskrit word for one hundred thousand. Shellac is the purified product of lac the red hardened secretion of the insect laccifer tachardia lacca kerr.
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In manufacturing shellac is used as a finish for furniture an ingredient in hair spray and in other cosmetics.
Shellac tablet. In manufacturing shellac is used as a finish for furniture an ingredient in hair spray and in other cosmetics. Shellac tablets mixture coating prior art date 1963 02 28 legal status the legal status is an assumption and is not a legal conclusion. Shellac is composed of hydroxyaliphatic acids and alicyclic acids.
In the pharmaceutical industry shellac is used as a tablet coating and for other uses. In dentistry shellac from laccifer lacca is used to make dentures and other dental products. This resin known as lac is harvested from tree branches and condensed into flakes.
This tiny insect sucks the sap of selected trees and bushes and secretes lac as a protective covering. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed expired lifetime application number us261882a inventor butler john allen valentine william. When dissolved in denatured alcohol the flakes create a thick solution that you can spread with a brush or spray.
In dentistry shellac from laccifer lacca is used to make dentures and other dental products. When you apply a shellac finish youre coating your tabletop with resin secreted by insects. In the pharmaceutical industry shellac is used as a tablet coating and for other uses.
Shellac has been used in the pharmaceutical industry as a tablet coating often for enteric coating on tablets. Traditionally shellac has been used in. In the cosmetics industry shellac has been used in mascara hair spray nail polish and eyeliner.
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