Patent · US Expired

N-substituted benzimidazole-2-carboxanilides

US5008397A · kind A · utility

2Cited by

4References

7Claims

0Family size

Assignee

BASF SE

Inventors

Peter Spang · Sankt Ingbert, DE
Peter Neumann · Wiesloch, DE
Gerhard Wagenblast · Wachenheim, DE
Hubert Trauth · Dudenhofen, DE

Key dates

Filing date	Aug 15, 1989
Grant date	Apr 16, 1991
Priority date	—
Expiry date	Aug 15, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/3447
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Compounds of the general formula (I) ##STR1## where R.sup.1 and R.sup.2 are each H, Cl, alkyl, alkoxy, substituted or unsubstituted phenyl or phenylalkyl, R.sup.3 and R.sup.4 are each H, alkyl, oxaalkyl, alkoxy, oxaalkoxy, substituted or unsubstituted phenyl, phenylalkyl, phenoxy, phenylalkoxy, alkylcarbonylamino, benzoylamino, alkanoyloxy or benzoyloxy, n is 1 or 2 and R.sup.5 is -- when n is 1-alkyl, hydroxyalkyl, cycloalkyl, alkenyl, oxaalkyl, phenylalkyl or ##STR2## or -- when n is 2-akylene, cycloalkylene, alkenylene, oxaalkylene or ##STR3## where m is from 2 to 4, R.sup.6 is alkyl, alkenyl, cycloalkyl, phenylalkyl, substituted or unsubstituted phenyl or naphthyl, and R.sup.7 is alkylene, alkenylene, cycloalkylene, substituted or unsubstituted phenylene, naphthylene, diphenylene, ##STR4## are effective light stabilizers for organic materials, in particular for polymers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.