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2 140 938

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Application

98122737/04, 1998-12-15

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Start date

1998-12-15

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Actual filing date

1998-12-15

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Published

1999-11-10

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Inventor

Gabutdinov M.S.Cherevin V.F.Ivanov L.A.Medvedeva Ch.B.Vakhbrejt A.Z.Sheremet'Ev V.M.Mukmeneva N.A.Kadyrova V.Kh.Zijatdinov B.R.Serpokrylov A.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Sintez"Kazanskij Gosudarstvennyj Tekhnologicheskij Universitet

COMPOSITION OF SYNERGISTS FOR STABILIZATION OF POLYOLEFINS Russian patent published in 1999 - IPC

Abstract RU 2140938 C1

FIELD: chemical industry. SUBSTANCE: described is composition of synergists comprising three (2,4-ditert-butylphenyl)phosphite and combination of other phosphites. This combination includes tri(2-tert- butylphenyl)phosphite, tri-(4-tert-butylphenyl)phosphite, di(4-tert-butylphenyl)phosphite, di-(4-tert- butylphenyl)(2,6-di-tert-butylphenyl)phosphite and di(3- tert-butylphenyl)(2,4,6-tri-tert-butylphenyl)phosphite, ratios of components being as follows, wt %: tri(2,4- detert-butylphenyl)phosphite, 2.8-5.5; di(4-tert- butylphenyl)(2,4,6-tri-tert-butylphenyl)phosphite; 0.1- 0.3. EFFECT: higher synergistic effect in the course of stabilization of polyolefins. 34 ex, 3 tbl

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RU 2 140 938 C1

Authors

Gabutdinov M.S.

Cherevin V.F.

Ivanov L.A.

Medvedeva Ch.B.

Vakhbrejt A.Z.

Sheremet'Ev V.M.

Mukmeneva N.A.

Kadyrova V.Kh.

Zijatdinov B.R.

Serpokrylov A.A.

Dates

1999-11-10—Published

1998-12-15—Filed

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