Liquid substituted 2H-benzotriazole mixtures, stabilized composi

Details Liquid substituted 2H-benzotriazole mixtures, stabilized composi Liquid substituted 2H-benzotriazole mixtures, stabilized composi

1991-12-04

1993-08-31

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

430905, C08K 534

Patent

active

052409759

ABSTRACT:
Liquid substituted 2H-benzotriazole mixtures are prepared by alkylation with concomitant dealkylation, fragmentation and realkylation of 2-(2-hydroxy-5-alkylphenyl)-2H-benzotriazoles or of 2-(2-hydroxy-3,5-dialkylphenyl)-2H-benzotriazoles with straight or branched alkenes of 8 to 30 carbon atoms in the presence of an acid 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: 3004896 (1961-10-01), Heller et al.
patent: 3055896 (1962-09-01), Boyle et al.
patent: 3072585 (1963-01-01), Milionis et al.
patent: 3074910 (1963-01-01), Dickson, Jr.
patent: 3189615 (1965-06-01), Heller et al.
patent: 3230194 (1966-01-01), Boyle
patent: 3253921 (1966-05-01), Saurdey
patent: 3983132 (1976-09-01), Strobel
patent: 4042394 (1977-08-01), Smith, Jr. et al.
patent: 4096242 (1978-06-01), Strobel
patent: 4127586 (1978-11-01), Rody et al.
patent: 4129521 (1978-12-01), Strobel
patent: 4278590 (1981-07-01), Dexter et al.
patent: 4283327 (1981-08-01), Dexter et al.
patent: 4383863 (1983-05-01), Dexter et al.
patent: 4447511 (1984-05-01), Dexter et al.
patent: 4587346 (1986-05-01), Winter et al.
patent: 4668278 (1987-05-01), Haga et al.
patent: 4674352 (1987-06-01), Winter et al.
patent: 4973701 (1990-11-01), Winter et al.
Markov, et al., "Alkylation and light-stabil efficiency of hydroxyaryl benzotriazoles" Chem. Abst. vol. 102 (11) 95578f (1985).

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