摘要:
The present invention relates to a process for preparing aqueous active compound compositions of active compounds which are poorly soluble in water, in particular of active compounds for the protection of crops and materials. Moreover, the invention relates to the active compound compositions obtainable by the process and to their use for controlling harmful organisms in plants and in the protection of materials.The process comprises the following steps: a) provision of an aqueous suspension of solid active compound particles of at least one active compound having a solubility in water of not more than 5 g/l at 25° C./1013 mbar, comprising, for stabilizing the active compound particles, at least one surfactant, where the active compound particles in the suspension have a mean 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 compound, where 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 solubility in water of not more than 30 g/l at 25° C./1013 mbar, giving an aqueous dispersion of polymer/active compound particles, and c) emulsion polymerization of a second monomer composition M2 in an aqueous dispersion of the polymer/active compound particles obtained in step b), where 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 solubility in water of not more than 30 g/l at 25° C./1013 mbar.
摘要:
The invention relates to aqueous fungicidal active substance compositions and to their use in the control of harmful microorganisms and in particular in the protection of cellulose-comprising materials, particularly wood, from infection by microorganisms, in particular those harmful fungi which can damage wood or cellulose. The active substance composition according to the invention comprises: a) at least one fungicidal organic active substance with a solubility in water of not more than 5 g/l at 25° C./1013 mbar, and b) a finely-divided polymer with an average particle size, determined by dynamic light scattering, of not more than 300 nm, in which the polymer particles comprise the active substance, the polymer being formed from ethylenically unsaturated monomers M comprising: at least 60% by weight, based on the total amount of the monomers M, of at least one neutral monoethylenically unsaturated monomer Ml with a solubility in water of not more than 30 g/l at 25° C., and up to 40% by weight, based on the total amount of the monomers M, of one or more ethylenically unsaturated monomers M2 other than the monomers M1.
摘要:
The invention relates to aqueous insecticidal compositions embodied in the form of an aqueous polymer fine particle dispersion containing at least one type of organic insecticidal active substance whose water solubility is equal to or less than 5 g/l at 25° C./1013 mbar and a polymer particle average size, determined by dynamic light scattering, is equal to or less than 300 nm, wherein the polymer particles containing at least one insecticidal active substance exhibit a cationic surface charge and the aqueous dispersion of active substance containing polymer particles is obtained by radical aqueous emulsion polymerisation of an ethylenically unsaturated monomer composition M, in which said ethelenycally unsaturated monomer M contains at least one type of insecticidal active substance in a dissolved form. The use of the inventive aqueous insecticidal compositions for protecting lignocellulose-containing materials, in particular wood, against infest pest attacks is also disclosed.
摘要:
A process for treating pigments in particulate form, comprising the following steps 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 obtained after b) to form water-insoluble polymer or copolymer at the surface of the pigments in particulate form, d) adding at least one second monomer or a second mixture of comonomers and addition polymerizing or copolymerizing.
摘要:
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.
摘要:
Insecticide composition for application to a textile material or plastics material selected from the group consisting of yarn, fibers, fabric, knitgoods, nonwovens, netting material, foils, tarpaulins and coating compositions, which insecticide composition comprises a mixture including at least one insecticide and/or at least one repellent, and at least one binder; an impregnated textile material or plastics material comprising at least one insecticide and/or at least one repellent, and at least one binder; processes for impregnation of a textile material or plastics material and a process for coating of a textile material or plastics material.
摘要:
A process for pretreating cellulosic textile, which comprises the steps of: (a) treating cellulosic textile with a solution of polymer or copolymer obtainable by (a1) polymerization or copolymerization of N-vinylamide of the general formula I where R is selected from hydrogen and C1-C10-alkyl, and (a2) partial hydrolysis if appropriate, (b) optionally drying the treated textile, and (c) optionally saponifying all or some of the amide groups, wherein at least one of the steps (a2) and (c) is carried out.
摘要翻译:一种用于预处理纤维素织物的方法,其包括以下步骤:(a)用聚合物或共聚物溶液处理纤维素织物,所述聚合物或共聚物可通过(a1)通式I的N-乙烯基酰胺的聚合或共聚获得,其中R选自氢和 C 1 -C 10 - 烷基,和(a2)适当的部分水解,(b)任选地干燥经处理的织物,和(c)任选地皂化全部或一些 酰胺基,其中进行步骤(a2)和(c)中的至少一个。
摘要:
The present invention relates to a laser gain medium comprising at least one active species adapted to be stimulated to emit laser light within a predetermined wavelength range and optical feedback means defining a resonator for said laser light. The feedback means comprise at least one substantially solid cholesteric layer having a substantially planar texture exhibiting selective reflection of light defined by a reflection band tuned to said predetermined wavelength range.
摘要:
Process for improving the brilliance of color and the stability of a colored polymer system, which is composed of a matrix and of discrete polymer particles distributed in accordance with a defined spatial lattice structure in the matrix, and which is obtained by filming of an emulsion polymer with core/shell structure, which comprises using an emulsion polymer obtainable by polymerizing monomers in at least one first stage (core monomers), then polymerizing monomers in at least one further, second stage (transition stage), and finally polymerizing monomers in a third stage (shell monomers), where, based on the percentage constitution of the monomer mixtures of the three stages, at most 30% by weight of the monomers of the first stage are identical with those of the third stage, and 5% of the monomers of the second stage are identical with, respectively, those of the first and those of the third stage, and not more than 60% by weight of the monomers of the 2nd stage here are monomers absent in the 1st stage and also absent in the 3rd stage.
摘要:
A storage-stable aqueous miniemulsion whose disperse phase comprises a cholesteric mixture is prepared and is used for coating and printing on suitable substrates.