5-Higher alkyl substituted-2H-benzotriazoles in stabilized compo

Details 5-Higher alkyl substituted-2H-benzotriazoles in stabilized compo 5-Higher alkyl substituted-2H-benzotriazoles in stabilized compo

1987-11-13

1990-02-27

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C08K 534

Patent

active

049047124

ABSTRACT:
5-tert-Octyl-2-(2-hydroxy-3,5-di-alpha-cumylphenyl)-2H-benzotriazole and related 2H-benzotriazoles substituted on the 5-position of the benzo ring by a higher alkyl group such as tert-octyl or dodecyl exhibit outstanding efficacy in protecting organic substrates from light-induced deterioration as well as good resistance to loss by volatilization or exudation during the high temperature processing of stabilized compositions. The above-named compounds exhibit good solubility in common organic solvents, and exhibit very high extinction coefficients.

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