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US 2006/0219376 A1Published application
Microcrystalline cellulose and method for making
OwnerMengkui Luoinventor
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Abstract
The present application provides a method of converting a pulp having at least 7 percent by weight hemicelluose and a D. P. of from 200 to about 1100 to a composition comprising microcrystalline cellulose. In the process the pulp is contacted with a treating agent to hydrolyze the cellulose to microcrystalline cellulose which has a high hemicelluose level, a hemicelluose retention of at least 0.65, a brightness of at least 86 and an X-ray crystallinity index of at least 0.65.
Claims9
A method comprising the steps of;
- providing a cellulosic pulp with at least 7 percent hemicellulose and a D.P. of from 200 to 1100;
- providing a treating agent;
- contacting said pulp with said treating agent;
- wherein said cellulosic pulp is reduced to microcrystalline cellulose with a LODP of at least 195 and less than 245 and;
- wherein said microcrystalline cellulose has an X-ray crystallinity index of at least 0.65
2 more elements
The method of claim 4 wherein said inorganic acid is hydrochloric acid.
Dependencies are inferred from the claim text.