Paper improvers

An agent or dispersion for treating materials contg. or resembling cellulose contains (1) a water-dispersible polyisocyanate mixt. (P1), contg. tert. amino and/or tert. and/or quat. ammonium and/or polyether gps.; (2) a natural polymer (NP) comprising a polysaccharide, e.g. starch, (hemi)cellulose,...

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Bibliographische Detailangaben
Hauptverfasser:	BERNHARD JANSEN, JUERGEN REINERS, ECKHARD WENDEROTH, JOACHIM KOENIG, HARRO TRAEUBEL, JUERGEN KOPP, JOACHIM PROBST
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON IMPREGNATING OR COATING OF PAPER MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING 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:	An agent or dispersion for treating materials contg. or resembling cellulose contains (1) a water-dispersible polyisocyanate mixt. (P1), contg. tert. amino and/or tert. and/or quat. ammonium and/or polyether gps.; (2) a natural polymer (NP) comprising a polysaccharide, e.g. starch, (hemi)cellulose, chitosan, xanthan, agar, galactomannan, carrageenan, pectin, alginate, plant gums, and their derivs.; and/or (3) a water-dilutable synthetic polymer (SP), consisting of a modified copolymer of olefinically unsatd. cpds., with (a) 60-250 mequivs. of COOH gps., 10-100% neutralised, and (b) 15-20 wt.% of chemically combined gps. forming an ester gp. of formula OR (R = 12-22C aliphatic gp. with at least 1 C=C bond). Prodn. of printing paper, coating papers, and coated paper or card, treated with the compsn. is also claimed.