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2 026 859

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Application

4763831/04, 1989-12-04

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Actual filing date

1989-12-04

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Published

1995-01-20

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Inventor

Moiseev V.V.Guljaeva N.A.Baranov Ju.I.Stepanskij M.L.Kozlov A.P.Shestakov A.S.Kosovtsev V.V.Poluehktov I.T.

(73)

Holder

Voronezhskij Filial Vsesojuznogo Nauchno-Issledovatel'Skogo Instituta Sinteticheskogo Kauchuka Im.Akad.S.V.Lebedeva

(2-N,N-DIETHYLAMINOETHYL)-4′-HYDROXY-3′,5′-DI-TERT-BUTYLBENZYL- SULFIDE AS A STABILIZING AGENT OF CARBON-CHAIN POLYMERS Russian patent published in 1995 - IPC

Abstract RU 2026859 C1

FIELD: organic chemistry. SUBSTANCE: product: (2-N,N-diethylaminoethyl)-4′-hydroxy-3′,5′-di-tert. -butylbenzy- lsulfide which can be used as a stabilizing agent for carbon-chain polymers. Synthesis is carried out reaction of Mannich base with 2-diethylaminoethanethiol at 120-130 C with aminothiol excess distillation off at 2 mm mercury column. Yield is 98%, mol. mass is 346. Use of new substance at concentration 1 wt.-% in rubber SKS-30 ARKP provides increase of plasticity retention index under conditions of heat ageing at 140 C for 30 min from 94 to 96.9%. EFFECT: synthesis of compound of class indicated above showing enhanced effectiveness. 2 dwg, 6 tbl

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RU 2 026 859 C1

Authors

Moiseev V.V.

Guljaeva N.A.

Baranov Ju.I.

Stepanskij M.L.

Kozlov A.P.

Shestakov A.S.

Kosovtsev V.V.

Poluehktov I.T.

Dates

1995-01-20—Published

1989-12-04—Filed

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