Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1997-02-27
1998-10-20
Morgan, Kriellion S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524102, 252403, 546213, 546227, C08K 534, C07D40900, C09K 1522
Patent
active
058247220
ABSTRACT:
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.
Hata Noriaki
Mekada Machiko
Morikawa Hiroyuki
Ohnishi Akiyoshi
Suzuki Hiroyuki
Harima Chemicals Inc.
Mitsubishi Chemical Corporation
Morgan Kriellion S.
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