The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 1991
Filed:
May. 18, 1990
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Benzimidazolecarboxanilides of the formula (I) ##STR1## where R.sup.1 and R.sup.2 are each H, Cl, alkyl, alkoxy, unsubstituted or alkyl-- or alkoxy-substituted phenyl or phenylalkyl, R.sup.3 and R.sup.4 are each H, uninterrupted or --O-- interrupted alkyl or alkoxy, unsubstituted or alkyl-- or alkoxy-substituted phenyl, phenylalkyl, phenoxy, phenylalkoxy, hydroxyalkyl, hydroxyalkoxy, alkylcarbonylamino, alkanoyloxy, benzoylamino or benzoyloxy, X is alkylene, n is 1 or 2 and where--if n is 1--R.sup.5 is Cl, --OR.sup.6 or --NR.sup.4 R.sup.8 or--if n is 2--R.sup.5 is --O--R.sup.12 --O-- or --N(R.sup.9)--R.sup.13 --N(R.sup.9 --where R.sup.6 is H, unsubstituted, OH-- or alkanoyloxy-substituted alkyl whose carbon chain may be interrupted by --O-- or --N(R.sup.9)--, cycloalkyl, alkenyl, phenylalkyl, phenoxyethyl, hydroxy alkyl, phenylhydroxyalkyl or glycidyl, R.sup.7 and R.sup.8 are H, alkyl, cycloalkyl, phenyl, naphthyl, alkenyl, phenylalkyl, hydroxyalkyl or --NR.sup.7 R.sup.8, a saturated 5- or 6-membered heterocycle, R.sup.9 is alkyl, cycloalkyl, alkenyl, phenyl, naphthyl or phenylalkyl, R.sup.12 is alkylene, alkenylene, cyclohexylene, oxaalkylene and R.sup.13 is alkylene, oxaalkylene, diphenylenemethane or dicyclohexylenemethane or --N(R.sup.9)--R.sup.13 --N(R.sup.9)- is piperazinylene, are excellent light stabilizers for organic materials such as polymers and coating binders.