Discoloration prevention of phenolic antioxidants

Details Discoloration prevention of phenolic antioxidants Discoloration prevention of phenolic antioxidants

C - Chemistry, Metallurgy

07

C

260/615.1

C07C 39/06 (2006.01) C07C 37/14 (2006.01) C07C 37/70 (2006.01) C07C 37/88 (2006.01)

Patent

CA 1166271

Abstract Detrimental color change of phenolic entioxidants during production, storage and use in rubbers is inhibited by adding during the synthesis of the phenolic antioxidant a disubstituted hydroxylamine to the catalyst neutralization solution and a substituted oxime together with a disubstituted hydroxylamine to the reaction mixture prior to filtration.

387922

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