Hals phosphoramides as stabilisers

Details Hals phosphoramides as stabilisers Hals phosphoramides as stabilisers

1995-12-15

1997-09-23

Grumbling, Matthew V.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07F 932

Patent

active

056706421

ABSTRACT:
The invention relates to novel compounds of formula I ##STR1## wherein X is a direct bond, sulfur or --CHR.sub.5 --, R.sub.1 is hydrogen, C.sub.1 -C.sub.25 alkyl, unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted C.sub.5 -C.sub.8 cycloalkyl; unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted C.sub.5 -C.sub.8 cycloalkenyl; unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted phenyl; C.sub.7 -C.sub.9 phenylalkyl or --CH.sub.2 --S--R.sub.6 ; R.sub.2 is hydrogen, C.sub.1 -C.sub.25 alkyl, C.sub.2 -C.sub.24 alkenyl, unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted C.sub.5 -C.sub.8 cycloalkyl; unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted C.sub.5 -C.sub.8 cycloalkenyl; unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted phenyl; C.sub.7 -C.sub.9 -phenylalkyl or --CH.sub.2 S--R.sub.6 ; R.sub.3 is hydrogen or methyl; R.sub.4 is C.sub.1 -C.sub.8 alkyl, O.sup..cndot., OH, NO, --CH.sub.2 CN, C.sub.1 -C.sub.18 alkoxy, C.sub.5 -C.sub.12 cycloalkoxy, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.1 -C.sub.87 acyl, C.sub.7 -C.sub.9 phenylalkyl which is unsubstituted or substituted at the phenyl ring by C.sub.1 -C.sub.4 alkyl; R.sub.5 is hydrogen or C.sub.1 -C.sub.8 alkyl; and R.sub.6 is C.sub.1 -C.sub.20 alkyl, as stabilisers for protecting organic materials against oxidalive, thermal or light-induced degradation.

REFERENCES:
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patent: 4322527 (1982-03-01), Rasberger
patent: 4386204 (1983-05-01), Rasberger
patent: 4409346 (1983-10-01), Rasberger
Allen, et al. Polymer Degradation and Stability, 46, (1994), 75-84.
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Plastics Additives Handbook, 3rd Ed. p. 47, Hanser Munchen 1990.
Derwent Abstr. 93-296322/38.

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