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Aqueous emulsion polymers, obtained by radical-initiated polymerisation of monomers in the presence of degraded starch and polymeric emulsifier(s) selected from sulfonic acid group-containing maleic anhydride co- and/or ter-polymers and/or sulfonic acid group-containing branched oligo-urethanes. Ind...

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Hauptverfasser:	KIJLSTRA, JOHAN. DR., 51375 LEVERKUSEN, DE, SACKMANN, GUENTER. DR., 51379 LEVERKUSEN, DE, KOENIG, JOACHIM. DR., 51519 ODENTHAL, DE, THIELE, BERND., 51519 ODENTHAL, DE, JANSEN, BERNHARD. DR., 51061 KOELN, DE, ROICK, THOMAS. DR., 51375 LEVERKUSEN, DE, WENZ, ECKHARD. DR., 51069 KOELN, DE
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON IMPREGNATING OR COATING OF PAPER MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED 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:	Aqueous emulsion polymers, obtained by radical-initiated polymerisation of monomers in the presence of degraded starch and polymeric emulsifier(s) selected from sulfonic acid group-containing maleic anhydride co- and/or ter-polymers and/or sulfonic acid group-containing branched oligo-urethanes. Independent claims are also included for (a) the production of emulsion polymers by polymerizing a mixture of degraded starch and polymeric emulsifier(s) as above with monomer(s) in the presence of a water-soluble redox system to a monomer conversion of about 95% and then taking the polymerisation to completion in the presence of a sparingly water-soluble organic peroxide; (b) new maleic anhydride terpolymers of formula (I). M = a cation-forming group; n = 1 or 2; R = 1-10C aliphatic group or 6-10C aromatic group; R = H or methyl; R = H, 1-6C alkyl or phenyl; R = H or methyl; R = methyl or ethyl; and x, y, z = numbers such that the weight average molecular weight (Mw) of the polymer is 5000-500,000, preferably 10000-200000. The ratio x:y:z = (1:1:0.1)-(1:3:0.5).