Abstract:
A microcapsule composition, wherein the shell of the microcapsules comprises at least one polyurea which contains at least one permanent cationic group, which is covalently bonded to the shell and the core comprises at least one lipophilic component with the proviso that the core does not contain a fragrance and wherein the shell of the microcapsules does not contain guanidinium groups.
Abstract:
Die vorliegende Erfindung betrifft die Verwendung eines bestimmten, generisch definierten Copolymers zur Stabilisierung einer peroxidischen Verbindung gegen Zersetzung. Weiterhin betrifft die vorliegende Erfindung eine besondere Ausführungsform des Copolymers, nämlich ein Copolymer enthaltend Wiederholungseinheiten abgeleitet von N-Vinylpyrrolidon (oder von N-Vinyl-2-caprolactam) und mindestens einem Comonomer, das ausgewählt wird aus der Gruppe bestehend aus Vinylphosphonsäure, 2-Acrylamido-2-methylpropansulfonsäure und Kombinationen aus diesen Monomeren.
Abstract:
The application describes a process for the preparation of microcapsules, wherein the microcapsules have a volume average diameter d of 15 to 90 μηη and a percentage of the shell weight of 3 to 40%, with reference to the total weight of capsules, wherein the shell of the microcapsules comprises at least one polyurea and the core comprises at least one lipophilic component, comprising the step of adding hydroxyalkylcellulose to a dispersion of polyurea microcapsules, microcapsules and their uses.
Abstract:
The present invention relates to a process for producing microcapsules which contain a shell and a core of a liquid water-insoluble material, where (a) a premix (I) is prepared from water and a protective colloid; (b) a further premix (II) is prepared from the water-insoluble material and at least bifunctional isocyanate (A) or a mixture of two or more different isocyanates containing (A); (c) the two premixes (I) and (II) are mixed together until an emulsion is formed; (d) at least a bifunctional amine is then poured into the emulsion from step (c); and (e) the emulsion is then heated until the microcapsules are formed, and where the liquid water-insoluble material comprises a pesticide, where the protective colloid is a polyvinyl alcohol copolymer having hydrolysis degrees from 60 to 99.9 %, and where the polyvinyl alcohol copolymer contains comonomers with anionic groups. Further subject matter are microcapsules obtainalbe by said process. The present invention also relates to a method of controlling phytopathogenic fungi and/or undesired plant growth and/or undesired insect or mite attack and/or for regulating the growth of plants, wherein the microcapsules are allowed to act on the respective pests, their environment or the crop plants to be protected from the respective pest, on the soil and/or on undesired plants and/or on the crop plants and/or on their environment.
Abstract:
The application describes a process for the producing microcapsules which contain a shell made of polyurea obtained in the presence of polyvinyl alcoholcopolymers.
Abstract:
The present invention relates to a new polymer, a process for making it and its use as thickening agent (also called thickener). The polymer comprises repeating units derived from acrylic acid and/or methacrylic acid, repeating units derived from a monomer which is, in a wider sense, an ethoxylated or propoxylated fatty alcohol substituted with a hydrophobic moiety, repeating units derived from vinyl pyrrolidone and repeating units derived from 1-vinyl imidazole.
Abstract:
Die vorliegende Erfindung betrifft die Verwendung einer Zusammensetzung enthaltend eine peroxidische Verbindung und ein bestimmtes, generisch definiertes Copolymer zum Bleichen von Zähnen.
Abstract:
The application describes an aqueous dispersion of microcapsules, wherein the shell of the microcapsules comprises at least one polyurea and the core comprises one or more lipophilic components with the proviso that the core does not contain a fragrance, and having a percentage of the shell weight with reference to the total weight of the capsules of 5 to 40 % and wherein the microcapsules have a volume average diameter of 15 to 90 μm and the dispersion comprises hydroxyalkylcellulose and the use of such a dispersion.