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IPC

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Application

99108206/28, 1999-04-14

(24)

Start date

1999-04-14

(22)

Actual filing date

1999-04-14

(45)

Published

2001-06-10

(72)

Inventor

Karpitskij V.I.

(73)

Holder

Institut Khimii Nefti So Ran

METHOD OF DETERMINING EFFICIENCY OF LIGHT STABILIZERS AND ANTIOXIDANTS IN CASE OF THEIR SIMULTANEOUS PRESENCE Russian patent published in 2001 - IPC

Abstract RU 2168715 C2

FIELD: analytical methods. SUBSTANCE: sample of light stabilizer and antioxidant is added to solution of azo-bis-isobutyronitrile in cumene, mixture is saturated with oxygen, illuminated with UV light, and stabilizer and antioxidant efficiency is estimated from induction period of cumene oxidation. EFFECT: simplified procedure. 1 tbl

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RU 2 168 715 C2

Authors

Karpitskij V.I.

Dates

2001-06-10—Published

1999-04-14—Filed

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