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98118240/04, 1998-10-05

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1998-10-05

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1998-10-05

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1999-10-20

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Inventor

Surovtsev A.A.Patanova I.M.Karpov O.P.Pavlov S.Ju.Bespalov V.P.Fedotov V.B.Borejko N.P.Galiev R.G.Mustafin Kh.V.Rjazanov Ju.I.

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Holder

Otkrytoe Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij InstitutTovarishchestvo S Ogranichennoj Otvetstvennost'Ju

METHOD OF PREPARING INHIBITOR OF POLYMERIZATION OF UNSATURATED HYDROCARBONS Russian patent published in 1999 - IPC

Abstract RU 2139859 C1

FIELD: chemical industry, more particularly preparation of inhibitor of polymerization of unsaturated hydrocarbons based on 2,2′,6,6′-tetramethyl-4- oxopiperidin-1-oxyl. SUBSTANCE: method comprises oxidizing 2,2′,6,6′-tetramethyl-4-oxopiperidine with organic hydroperoxide in the presence of variable valency metal compounds as catalyst. Method makes it possible to increase yield of the desired product and improve its inhibiting activity. EFFECT: more efficient preparation method. 5 cl, 7 ex, 2 tbl

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RU 2 139 859 C1

Authors

Surovtsev A.A.

Patanova I.M.

Karpov O.P.

Pavlov S.Ju.

Bespalov V.P.

Fedotov V.B.

Borejko N.P.

Galiev R.G.

Mustafin Kh.V.

Rjazanov Ju.I.

Dates

1999-10-20—Published

1998-10-05—Filed

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