Light stabilizers based on sterically hindered amines
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United States of America Patent
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Jan 9, 2001
Grant Date -
N/A
app pub date -
Sep 3, 1998
filing date -
Sep 4, 1997
priority date (Note) -
Expired
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Abstract
The present invention relates to novel compounds of the formula (I) ##STR1## in which the substituents have the meaning defined in the description. These novel compounds are excellent stabilizers for organic material against the damaging effects of light, heat and oxygen.
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