| |
 |
|
|
Inventor: Vieira; Eric
Address: Fribourg, CH
No. of patents: 5
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5686633 |
Inks, particularly for ink jet printing |
November 11, 1997 |
| Inks, particularly inks for ink jet printing, contain at least one compound of the formula I ##STR1## as a stabilizer. The symbols R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.3 ' and R.sub.4 ' are as defined in claim 1. The compounds are in part novel and are suitable for use as li |
| 5098477 |
Inks, particularly for ink printing |
March 24, 1992 |
| Inks, particularly inks for ink jet printing, contain at least one compound of the formula I ##STR1## as a stabilizer. The symbols R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.3 ' and R.sub.4 ' are as defined in claim 1. The compounds are in part novel and are suitable for use as li |
| 5096781 |
Water-soluble compounds as light stabilizers |
March 17, 1992 |
| Compounds of the formula Iin which n' is a number from 1 to 4, U is a radical of a UV absorber of the hydroxyphenylbenzotriazole, hydroxybenzophenone, cinnamic acid or triazine type and SOL is a group of the formula Ia ##STR1## The symbols in the formula Ia are as defined in claim 1. |
| 5073448 |
Recording materials for ink-jet printing |
December 17, 1991 |
| Recording materials for ink jet printing containing, as a stabilizer, at least one compound of the formula I ##STR1## The symbols R.sub.1, R.sub.2, R.sub.3, R.sub.3 'R.sub.4 and R.sub.4 ' are as defined in claim 1. |
| 5071993 |
Bis(dibenzoxazoyl)thiophene fluorescent brighteners |
December 10, 1991 |
| Compounds of the formula ##STR1## in which R.sup.1 and R.sup.3 independently of one another are C.sub.1 -C.sub.8 alkyl, cyclopentyl, cyclohexyl, C.sub.7 -C.sub.9 aralkyl, phenyl or a group of the formulain which m is a number from 0-10 and q is 1 or 2, with q=1 in the case of m=0 |
|
|
|
