Stabilized compositions containing substituted isoxazolidines

Details Stabilized compositions containing substituted isoxazolidines Stabilized compositions containing substituted isoxazolidines

1990-04-12

1991-08-06

Morgan, Kriellion S.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 95, 252403, C08K 53412, C08K 53417

Patent

active

050378678

ABSTRACT:
Substituted isoxazolidines of formula I ##STR1## where R.sub.1 and R.sub.2 are independently alkyl, cycloalkyl, alkenyl, aryl or phenylalkyl, R.sub.2 is additionally hydrogen, R.sub.3 is hydrogen or methyl, n is 1-4, E.sub.1 is an electron withdrawing group, and E.sub.2 is hydrogen, alkyl, phenyl or has the same meaning as E.sub.1, are effective in stablizing organic materials against oxidative, thermal and actinic degradation.

REFERENCES:
patent: 3671482 (1972-06-01), Fujimoto et al.
patent: 3960816 (1976-06-01), Jurisch
patent: 3967015 (1976-06-01), Hunsucker
patent: 4032503 (1977-06-01), Kormany et al.
patent: 4205176 (1980-05-01), Zestermann et al.
patent: 4256620 (1981-03-01), Aigner et al.
patent: 4288361 (1981-09-01), Zestermann et al.
A. Padwa, "1,3-Dipolar Cycloaddition Chemistry", vol. 1-2, E. C. Taylor and A. Weissberger, Eds., Wiley-Interscience, N.Y., 1984 pp. 691-692.
C. A. vol. #95 114651e, p. 620, 1981.
C. A. 98:106453p, p. 530, 1983.
C. A. 100:51330y, p. 557, 1984.

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