Liquid 2-(2-hydroxy-3-higher branched alkyl-5-methyl-phenyl)-2H-

Details Liquid 2-(2-hydroxy-3-higher branched alkyl-5-methyl-phenyl)-2H- Liquid 2-(2-hydroxy-3-higher branched alkyl-5-methyl-phenyl)-2H-

1985-11-20

1987-06-23

Kight, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

252401, 548257, 548260, C08K 534

Patent

active

046753524

ABSTRACT:
Liquid 2-(2-hydroxy-3-higher branched alkyl-5-methylphenyl)-2H-benzotriazole mixtures are prepared by alkylating 2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole with a straight chain alkene or with a branched chain alkene of 8 to 30 carbon atoms in the presence of an acidic catalyst at 100.degree.-200.degree. C. The liquid mixtures exhibit outstanding efficacy in protecting organic substrates from light induced deterioration as well as good resistance to loss by volatilization or exudation during the processing of stabilized compositions at elevated temperatures.

REFERENCES:
patent: 4127586 (1978-11-01), Rody et al.
patent: 4383863 (1983-05-01), Dexter et al.

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