Phosphites and their production and use

Details Phosphites and their production and use Phosphites and their production and use

1996-10-01

1998-12-01

McKane, Joseph K.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

524117, 524128, 524336, 524340, 558 85, 558 87, C07D 96571

Patent

active

058433392

ABSTRACT:
Phosphites represented by the general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkylcycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms or a phenyl group; R.sup.3 and R.sup.6 independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; X.sub.1 is a dihydric alcohol residue, wherein HO--X.sub.1 --OH defines the corresponding dihydric alcohol from which residue X.sub.1, is obtained; and X.sub.2 is a direct bond or an alkylene group having 1 to 8 carbon atoms; and the phosphites are useful as stabilizers for organic materials.

REFERENCES:
patent: 3907939 (1975-09-01), Robin et al.
patent: 4252750 (1981-02-01), Buysch et al.
patent: 4351759 (1982-09-01), Spivack
patent: 4668651 (1987-05-01), Billig et al.
patent: 5292785 (1994-03-01), Pastor et al.
patent: 5391799 (1995-02-01), Pastor et al.
patent: 5576365 (1996-11-01), Fukuda et al.
patent: 5616767 (1997-04-01), Enlow et al.
patent: 5643985 (1997-07-01), Hoffmann et al.
Chemical Abstracts, vol. 119, No. 11, (13 Sep. 1993), Abstract No. 117545.

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