Method for preparing microparticles having a selected polymer molecular weight
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United States of America Patent
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app pub date -
Jul 17, 2007
filing date -
May 19, 2000
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Abstract
A method for preparing microparticles having a selected polymer molecular weight. The hold time and temperature of a solution containing a nucleophilic compound and a polymer having a starting molecular weight are controlled in order to control the molecular weight of the polymer in the finished microparticle product. In this manner, a selected polymer molecular weight in the finished microparticle product can be achieved from a variety of starting material molecular weights.
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