Phosphoramidates containing a p-phenylenediamine group

Details Phosphoramidates containing a p-phenylenediamine group Phosphoramidates containing a p-phenylenediamine group

1983-07-21

1984-12-18

Welsh, Maurice J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252406, 524 81, 524136, 524148, 524151, 106243, 106270, C09K 1532, C08K 549

Patent

active

044889852

ABSTRACT:
Novel phosphoramidates of the general formula: ##STR1## wherein R, R' and R" represent certain specified substituent groups, are useful as stabilizing agents for organic materials, such as natural and synthetic rubbers and lubricating oils. The combined use of these compounds with certain sulfur-containing compounds shows a surprising synergistic effect.

REFERENCES:
patent: 3914344 (1975-10-01), Schwarzenbach et al.
patent: 4006117 (1977-02-01), Merrifield et al.
patent: 4383066 (1983-05-01), Sugio

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