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Inventor: W urms; Norbert
Address: Ursen, CH
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5597854 |
Latent light stabilizers |
January 28, 1997 |
| The invention relates to compounds of the formula I ##STR1## in which n is 1 or 2, A is CH or a nitrogen atom, and the other radicals R.sup.1 to R.sup.25 are as defined in claim 1.The compounds of the formula I can advantageously be employed for stabilizing organic material against t |
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