| Patent Number |
Title Of Patent |
Date Issued |
| 6090928 |
Process for the preparation and work-up of N-hydroxyalkylchitosans soluble in aqueous medium |
July 18, 2000 |
| The present invention relates to a process for the preparation and work-up of N-hydroxyalkylchitosans soluble in aqueous media, comprising the measuresdispersion of chitosan in an aqueous medium,subsequent hydroxyalkylation of the dispersed chitosan andsubsequent work-up of the N-hydroxyalky |
| 5747468 |
Cationic unsaturated saccharides and polymers prepared therefrom, and their use |
May 5, 1998 |
| Cationic unsaturated saccharides of the formula Iin whichR.sup.1 is a deoxysaccharide radical having 1 to 20 monomer units,R.sup.2 has the same meaning as R.sup.1 or is C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20,-alkenyl, C.sub.1 -C.sub.4 -hydroxyalkyl, C.sub.1 -C.sub.4 -alkylphenyl or a po |
| 5554768 |
Substituted Succinimides |
September 10, 1996 |
| The present invention relates to succinimides of the formula I ##STR1## in which R.sup.1 and R.sup.2, independently of one another, are hydrogen, C.sub.1 -C.sub.24 -alkyl, C.sub.2 -C.sub.24 -alkenyl, C.sub.6 -C.sub.12 -cycloalkyl, C.sub.6 -C.sub.12 -cycloalkenyl, C.sub.6 -C.sub.12 -a |
| 4979681 |
Process for grinding and simultaneous drying of moist cellulose ether products |
December 25, 1990 |
| The present invention relates to a process for careful grinding and simultaneous drying of moist cellulose ether products wherein a moist cellulose ether is introduced by means of a transport gas into a circular space. The moist cellulose ether is impact-comminuted while being circul |
| 4794166 |
Process for the preparation of a hydrogel which is largely free from monomers |
December 27, 1988 |
| A polymer hydrogel substantially free from monomers and oligomers is prepared by contacting a previously prepared polymer hydrogel with a single-phase mixture of water and a solvent and then separating the mixture of water and solvent from the hydrogel. |
| 4530747 |
Photopolymerizable mixture and photopolymerizable copying material prepared therewith |
July 23, 1985 |
| Disclosed are a photopolymerizable mixture and photopolymerizable copy materials made therefrom. The mixture contains a polymerizable compound having terminal acrylic or methacrylic acid ester groups, selected from a compound of one of the general formulas ##STR1## wherein R.sub. |
| 4458006 |
Photopolymerizable mixture and photopolymerizable copying material prepared therewith |
July 3, 1984 |
| Disclosed are a photopolymerizable mixture and photopolymerizable copy materials made therefrom. The mixture contains a polymerizable compound having terminal acrylic or methacrylic acid ester groups and being selected from a compound of the formula I ##STR1## wherein R.sub.1 is |
| 4371607 |
4-Halogeno-5-(halogenomethyl-phenyl)-oxazole derivatives, a process for the preparation thereof, |
February 1, 1983 |
| This invention relates to a novel 4-halogeno-5-(halogenomethyl-phenyl)-oxazole derivative; to a radiation-sensitive composition which, as the radiation-sensitive compound, contains a 4-halogeno-5-(halogenomethyl-phenyl)-oxazole derivative; and to a process for the preparation of the |
| 4371606 |
2-(Halogenomethyl-phenyl)-4-halogeno-oxaxole derivatives, a process for the preparation thereof, |
February 1, 1983 |
| This invention relates to a novel 2-(halogenomethyl-phenyl)-4-halogeno-oxazole derivative; to a radiation-sensitive composition which, as the radiation-sensitive compound, contains a 2-halogenomethyl-phenyl)-4-halogeno-oxazole derivative; and to a process for the preparation of the n |
