Polyanhydroaspartic acid and method of dry manufacture of polymers
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United States of America Patent
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Jun 15, 1993
Issued Date -
N/A
app pub date -
Oct 28, 1991
filing date -
Oct 13, 1989
priority date (Note) -
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Abstract
The invention is a process of manufacture, and a product manufactured by that process. The process comprises various steps. The steps include charging aspartic acid particles into a process unit and heating those particles to approximately 400.degree.-480.degree. F. As the aspartic acid particles are heated, vacuum is applied to that unit. Water is removed from the aspartic acid to form polyanhydroaspartic acid.
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