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2 094 445

(13)

C1

(51)

IPC

(21) (22)

Application

4893828/04, 1990-12-25

(22)

Actual filing date

1990-12-25

(45)

Published

1997-10-27

(72)

Inventor

Sirotkina E.E.Borilo A.V.Tipikina O.A.

(73)

Holder

Institut Khimii Nefti So Ran

1,4-DIALKYLOXYANTHREQUINONES AS COLORANTS FOR POLYOLEFINS Russian patent published in 1997 - IPC

Abstract RU 2094445 C1

FIELD: chemical industry. SUBSTANCE: present invention describes 1,4-dialkyloxyanthraquinones having from 4 to 16 carbon atoms as yellow colorants for polyolefins. Colorants are prepared from accessible feedstock using simplified technology by reacting 1,4- dioxyanthraquinone (quinizarine) with alkyl halide at 80- 110 C in the presence of tetrabutyl ammonium halide or benzyl triethylammonium chloride in 40-50 % aqueous solution of potassium or sodium hydroxide. EFFECT: improved properties of the title compounds. 1 tbl

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RU 2 094 445 C1

Authors

Sirotkina E.E.

Borilo A.V.

Tipikina O.A.

Dates

1997-10-27—Published

1990-12-25—Filed

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