Cleaning compositions and methods for cleaning resin and polymeric materials used in manufacture
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United States of America Patent
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Oct 5, 1999
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N/A
app pub date -
Sep 3, 1998
filing date -
Sep 29, 1997
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Abstract
Compositions and methods for cleaning, solvating, and/or removing plastic resins and polymers or other contaminants from manufactured articles or manufacturing equipment, particularly in the production of optical lenses. The compositions contain at least one nitrogen containing compound as well as other optional solvents and additives. The compositions can be contacted with a surface to be cleaned in a number of ways and under a number of conditions depending on the manufacturing or processing variables present.
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