AMINE-OXIDE-GROUP-CONTAINING MALEIC ANHYDRIDE COPOLYMER AND ITS USE

PROBLEM TO BE SOLVED: To obtain an amine-oxide-group-containing maleic anhydride copolymer which, when used as a dispersant for a dye, requires a short dispersion time and gives improved tinting strength, color deepness, and pigment stability by reacting a maleic anhydride copolymer with a diamine t...

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Bibliographische Detailangaben
Hauptverfasser:	JOSTEN WOLFGANG DR, GAIKOWSKI MANFRED, ESSELBORN EBERHARD, STUETTGEN ANDREAS, SILBER STEFAN DR, REUTER ELLEN
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS LAKES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION OF CARBON BLACK THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain an amine-oxide-group-containing maleic anhydride copolymer which, when used as a dispersant for a dye, requires a short dispersion time and gives improved tinting strength, color deepness, and pigment stability by reacting a maleic anhydride copolymer with a diamine through its anhydride groups and oxidizing the product to form amine oxide groups bonded through (hemi-)amido groups. SOLUTION: At least one mol% anhydride groups of a maleic anhydride copolymer having a maleic anhydride/comonomer ratio of 1: (1-3) are reacted with a diamine of formula II, and the product is oxidized to form amine oxide groups bonded through (hemi-)imido groups of formulas II and/or III to obtain an amine-oxide-groupcontaining maleic anhydride copolymer having a weight- average molecular weight of 1,000-100,000 g/mol. In the formulas, R1 is H or a 1-24C monovalent hydrocarbon group; R2 is a 2-24C divalent alkylene; and R3s and R4s are 1-12C, desirably, 1-16C aliphatic and/or alicyclic alkyls.