Compositions stabilized with poly-1,3,2-oxazaphospholidines

Details Compositions stabilized with poly-1,3,2-oxazaphospholidines Compositions stabilized with poly-1,3,2-oxazaphospholidines

1991-09-23

1992-09-15

Lee, Mary C.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 94, 524 97, 524100, 524101, 524102, 524131, 524191, 524283, 524291, 524343, 524350, 25240021, C08K 55399

Patent

active

051479117

ABSTRACT:
Compounds of formula I ##STR1## wherein n is 2-4, R.sub.1 is alkyl, cycloalkyl, phenylalkyl, phenyl or a radical of formula II ##STR2## R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, alkyl, cycloalkyl, phenylalkyl or aryl, or R.sub.3 and R.sub.4 together are alkyl, R.sub.5 and R.sub.6 are independently hydrogen, alkyl, cycloalkyl or phenylalkyl, R.sub.7 is hydrogen, alkyl or a group of the formula --(CH.sub.2).sub.k COOR.sub.8, where k is 0-2 and R.sub.8 is hydrogen or alkyl, and T is an n-valent hydrocarbon radical which may be interrupted by heteroatoms, are useful stabilizers for substrates subject to the deleterious effects of oxygen, heat and/or actinic radiation.

REFERENCES:
patent: 4751319 (1988-06-01), Odorisio et al.
patent: 4812501 (1989-03-01), Odorisio et al.
patent: 4831178 (1989-05-01), Odorisio et al.
S. D. Pastor et al., J. Am. Chem. Soc., 110, 6547 (1988).
Abstract for German 3,047,443.

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