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2 177 961

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IPC

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Application

2000102500/04, 2000-02-01

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Start date

2000-02-01

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Actual filing date

2000-02-01

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Published

2002-01-10

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Inventor

Sakhabutdinov A.G.Evtishina N.M.Kavun S.M.Tul'Chinskij Eh.A.Miloslavskij G.Ju.Silitrin V.V.Zajdullin A.A.Kutuzov P.I.Bazhenov Ju.P.

(73)

Holder

Otkrytoe Aktsionernoe ObshchestvoAktsionernoe Obshchestvo

POLYISOPRENE RUBBER STABILIZATION METHOD Russian patent published in 2002 - IPC

Abstract RU 2177961 C2

FIELD: rubber industry. SUBSTANCE: invention relates to stabilization of synthetic polyisoprene rubber by antioxidants and consists in adding amine-type antioxidants to solution of polyisoprene in C5-C6-aliphatic hydrocarbons containing 5-11 wt % C5-C18- olefins. Amine-type antioxidants utilized is a mixture of p-phenylenediamines: N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine with N-(1,3-dimethylbutyl)- N'-(4- cumylphenyl)-p-phenylenediamine or N-(1,4-dimethylpentyl)-N'-phenyl-phenylenediamine. EFFECT: enhanced rubber stabilization efficiency and reduced power consumption when recovering polymer from solution and regenerating solvent at better environmental conditions. 3 tbl, 15 ex

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RU 2 177 961 C2

Authors

Sakhabutdinov A.G.

Evtishina N.M.

Kavun S.M.

Tul'Chinskij Eh.A.

Miloslavskij G.Ju.

Silitrin V.V.

Zajdullin A.A.

Kutuzov P.I.

Bazhenov Ju.P.

Dates

2002-01-10—Published

2000-02-01—Filed

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