Wet strength paper is prepd

Wet strength paper is prepd. by (1) addn. to cellulose suspension of polyaminopolyamide-epichlorohydrin resin (I) and, as polymerisation accelerator, reaction prod. (II) of carboxymethylcellulose or its Na salt, having degree of substn. at carboxmethyl gps. 0.25-0.70 and contg. 20-40 wt.% basic subs...

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Hauptverfasser:	GANIEV, RASID GAN'EVIC, MALIN, ZITOMIRSKAJA OBLAST, SU, ZAGORUIKO, VLADIMIR VASIL'EVIC, VAICHANSKAJA, ALLA VASILIEVNA, RYLSKIJ, ALEKSANDR ULJANOVIC, PAVLOVA, ELINA SERGEEVNA, MOSKAU/MOSKVA, SU, VASILCENKO, JURIJ ANATOL'EVIC, KIEW/KIEV, SU, GRICULJAK, VJACESLAV NIKOLAEVIC, ROMANENKO, ELEONORA DMITRIEVNA, KIEW/KIEV, SU, KATALEVSKAJA, INESSA VIKTOROVNA, TRIBUNSKIJ, VLADIMIR VIKTOROVIC, VLADIMIR, SU, KORENEVSKAJA, KIRA FLEGONTOVNA, CJURUPINSK, CHERSONSKAJA OBLAST, SU
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF IMPREGNATING OR COATING OF PAPER METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING POLYSACCHARIDES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	Wet strength paper is prepd. by (1) addn. to cellulose suspension of polyaminopolyamide-epichlorohydrin resin (I) and, as polymerisation accelerator, reaction prod. (II) of carboxymethylcellulose or its Na salt, having degree of substn. at carboxmethyl gps. 0.25-0.70 and contg. 20-40 wt.% basic substance, with epichlorohydrin, in molar ratio 1.0:0.02-0.04 (2) forming cast paper prod from mixt. (3) drying and pressing. 0.1-1.5% (II) on absolutely dry wt. of cellulose in suspension is used. Fillers and functional additives are also added to cellulose suspension.