Abstract:
The invention relates to a method for producing aqueous active substance compositions of active substances that are hardly soluble in water, especially of active substances for use in the protection of plants and materials. The invention also relates to the active substance compositions obtained according to the inventive method and to their use in the control of harmful organisms in the protection of plants and materials. The inventive method comprises the following steps: a) providing an aqueous suspension of solid active substance particles of at least one active substance having a water solubility of not more than 5 g/l at 25 °C/1013 mbar and comprising at least one surface-active substance for stabilizing the active substance particles, whereby the active substance particles in the suspension have an average particle size, determined by dynamic light scattering, of not more than 1200 nm; b) emulsion polymerization of a first monomer composition M1 in the aqueous suspension of the active substance, whereby the monomer composition M1 comprises at least 95 % by weight, based on its total weight, of at least one neutral, monoethylenically unsaturated monomer M1.1 having a water solubility of not more than 30 g/l at 25 °C/1013 mbar, thereby obtaining an aqueous dispersion of polymer/active substance particles; and c) emulsion polymerization of a second monomer composition M2 in an aqueous dispersion of the polymer/active substance particles obtained in step b), whereby the monomer composition M2 comprises at least 60 % by weight, based on its total weight, of at least one neutral, monoethylenically unsaturated monomer M2.1 having a water solubility of not more than 30 g/l at 25 °C/1013 mbar.
Abstract:
The invention relates to polyelectrolyte complexes of cationic and anionic polymers, comprising (a) cationic condensates of (i) at least one amine and (ii) a cross-linking agent from the group of epihalohydrins, or bishalohydrins of diols, bishalohydrins of polyalkylene glycols, bishalohydrins of polytetrahydrofurans, alkylene dihalides, alkylene trihalides, bis-epoxides, tris-epoxides, tetra-epoxides, and/or mixtures of the above and/or quaternary cationic condensates of (i) and (ii) and (b) anionic compounds with at last three anionic groups and a loading ratio of anionic to cationic polymers of 0.01 to 20. The invention further relates to methods for the production of the polyelctrolyte complexes by means of mixing the cationic condensates (a) with anionic compounds (b).
Abstract:
Formulations comprising (A) at least one pigment in particulate form that has been treated according to a process which comprises steps of: (a) mixing pigment in particulate form with at least one nonionic surface-active substance, (b) dispersing the thus obtainable mixture of pigment in particulate form and nonionic surface-active substance in an aqueous medium, (c) addition polymerizing at least one first monomer or addition copolymerizing a first mixture of comonomers in the presence of a dispersion according to b) to form water-insoluble polymer or copolymer on the surface of the pigments in particulate form, (d) adding at least one second comonomer or a second mixture of comonomers and addition copolymerizing, and (B) at least one radiation-curable component.
Abstract:
Aqueous dispersion, comprises at least a pigment partially coated with at least radiation-hardenable polyurethane, where the polyurethane is obtained by a reaction of a diisocyanate, a compound with at least two isocyanate functional groups and an oxo compound (I). Aqueous dispersion, comprises at least a pigment partially coated with at least a radiation-hardenable polyurethane, where the polyurethane is obtained by a reaction of a diisocyanate, a compound with at least two isocyanate functional groups and an oxo compound (I) of formula (R2>-CH=C(R1>)-C(=O)-X1>-A1>-X2>) (where the R2>-C bond is a wavy bond). R1>, R2>H or 1-10C alkyl; X1>O or N-R3>; A1>1-20C alkylene (optionally substituted by 1-4C alkyl, O-(1-4C) alkyl or phenyl (where one or more CH2 groups in 1-20C alkylene can be replaced by O); X2>OH or NH-R3>); and R3>H, 1-10C alkyl or phenyl. Independent claims are included for: (1) the preparation of aqueous dispersion; (2) a method for coloring or printing on substrates comprising using the aqueous dispersion; (3) substrates, colored or printed by the above process; (4) a preparation of ink for ink-jet procedure comprising using the aqueous dispersion; (5) an ink for ink-jet printing comprising the aqueous dispersion; (6) a method of printing on substrates comprising using ink by the ink jet printing; (7) printed substrates, obtained by the process; and (8) at least partially coated pigment, manufactured by dispersing at least the pigment and the radiation-hardenable polyurethane.
Abstract:
Water soluble radiation curable products (A) obtainable by mixing with or without reaction of at least one hyperbranched polyurethane (a) with at least one compound having at least one ethylenic double bond per molecule (b) or by synthesis of at least one hyperbranched polyurethane (a) in the presence of at least one compound having at least one ethylenic double bond per molecule (b) are used to produce aqueous inks for the ink jet process.
Abstract:
Aqueous pretreatment liquor for preparing a textile substrate for inkjet printing, comprising (A) one or more polycationic compounds, (B) one or more thickeners, (C) optionally customary additives, (C) water. Preferred polycationic compounds (A) are polymers or copolymers of diallyldialkylammonium monomers. Preferred thickeners are obtainable from (i) polyetherdiols, (ii) diisocyanates and (iii) compounds, R of the general formula R-OH, R-SH, R-NH 2 , RR NH or R-COOH, where R is a hydrophobic aliphatic or aromatic radical of at least 4 carbon atoms and R-OH may have been alkoxylated, and also further derivatives thereof that are capable of forming a urethane, thiourethane or urea bond, or from (i) polyetherdiols with (iv) compounds of the general formula R-OH or R-COOH, where R is a hydrophobic aliphatic or aromatic radical of at least 4 carbon atoms and R-OH may have been alkoxylated, and also further derivatives thereof that are capable of forming an ether or ester bond, and or from compounds (ii) and (iii).