Sumitomo Chemical Company, Limited

Natsuko Kimura

Orhan Ozturk

Kazumasa Matsuo

Shuhei Matsumoto

The present invention relates to an antioxidant comprising a compound represented by formula (III): 

Antioxidant

The present invention relates to a phosphorous acid compound represented by formula (I): wherein Rrepresents a Calkyl group, a Ccycloalkyl group, a Calkyl cycloalkyl group, a Caralkyl group or a Caryl group; Rrepresents a hydrogen atom or a Calkyl group; and Rrepresents a Calkylene group, a stabilizer for organic materials containing the phosphorous acid compound, a method for stabilizing an organic material in which the phosphorous acid compound is added to the organic material, and a stabilized organic material composition containing an organic material and the phosphorous acid ester compound.

Phosphorous acid compound, method for producing said compound, and use of said compound

The present invention relates to a novel phosphite compound represented by the formula (I): wherein R, R, Rand Reach independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkylcycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, or an aryl group having 6 to 12 carbon atoms, a process for producing the same, and uses thereof as a stabilizer for an organic material.

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Osaka, Japan

Natsuko Kimura