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2 028 299

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IPC

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Application

4928935/04, 1991-04-23

(22)

Actual filing date

1991-04-23

(45)

Published

1995-02-09

(72)

Inventor

Vojtjuk L.P.Ermilina N.I.Osipova O.V.Suvorova A.V.Surkov S.Ju.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Institut Plasticheskikh Mass Im.G.S.Petrova S Opytnym Moskovskim Zavodom Plastmass

METHOD FOR PRODUCTION OF TRIARYLPHOSPHATES Russian patent published in 1995 - IPC

Abstract RU 2028299 C1

FIELD: production of triarylphosphates. SUBSTANCE: product: mixture P(O)(OR)3, where R is aryl. Reagent 1: POCl3. Reagent 2: phenol-xylenol mixture at ratio of (30-40):(70-60) in terms of mass.%, with use of phenol-xylenol mixture in form of 3.5-xylenol of the synthetic and coal kinds in ratio of 2: 1. Reaction conditions: at 170 C with return of nonreacted phenol mixture to zone of reaction in the amount of 6-10 mas.% instead of fresh phenol-xylenol mixture. EFFECT: higher efficiency. 2 cl, 1 tbl

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RU 2 028 299 C1

Authors

Vojtjuk L.P.

Ermilina N.I.

Osipova O.V.

Suvorova A.V.

Surkov S.Ju.

Dates

1995-02-09—Published

1991-04-23—Filed

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