4-hydroxyquinoline-3-carboxylic acid derivatives as light stabilizers

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United States of America Patent

PATENT NO 6194493
SERIAL NO

09146618

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Abstract

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The present invention relates to the use of compounds of the formula (I) ##STR1## where the substituents are as defined in the description as a stabilizer for organic material against the harmful effect of light, oxygen and heat.

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Patent Owner(s)

Patent OwnerAddress
CLARIANT GMBHFRANKFURT RIVERSIDE GERMANY FRANKFURT HESSIAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mehrer, Mathias Gablingen, DE 7 42
Stahrfeldt, Thomas Neusass, DE 9 58

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