Mitsubishi Chemical Corporation

Harima Chemicals, Incorporated

Yoshitomi Fine Chemicals, Ltd.

Machiko Mekada

Takeshi Inoue

Noriaki Hata

Akiyoshi Onishi

Akiyoshi Ohnishi

Yoshihiro Ozaki

Kazuo Nakagawa

Hiroyuki Morikawa

Hiroyuki Suzuki

Phenol compound and use thereof

The present invention provides a stabilizer comprising a substituted cyclohexene compound of a hindered piperidine type wherein the 1- and 2-positions on a cyclohexene ring are doubly bonded, a carbon atom situated at the 4-position and/or the 5-position of the cyclohexene ring contains a substituent having a C.dbd.O group at its alpha-position, at least one carbon atom of the cyclohexene ring located adjacent to said carbon atom having the C.dbd.O group has a hydrogen atom as a substituent, and at least one group containing a 2,2,6,6-tetramethyl-4-piperidyl group attached to the 3-, 4-, 5- or 6-position of the cyclohexene ring; and/or other substituted cyclohexene compound of a hindered piperidine and/or a compound of a hindered piperidine. The stabilizers of the present invention can exhibit improved properties in light stability and in bleed out resistance even without a phenol type antioxidant.

Stabilizer and resin composition containing the same

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Mie, Japan

Machiko Mekada