| 摘要 |
The invention relates to a binding dispersion for the production of insecticide paints and to a method for producing said dispersion, consisting of an aqueous dispersion of modified VeoVa vinyl nature, including active biocide materials, in which the polymer is vinyl acetate and VeoVa and the biocide materials, at a concentration of 10%, are immersed to surround the polymer particles, forming a structure with a polymer core and a shell of active ingredients. The production method comprises: a seeding step, in which a small part of the pre-emulsion (monomers, emulsifiers, water) and catalyst is added to the reactor; a polymerization step, in which the rest of the catalyst and pre-emulsion is then added, followed by the active biocide materials; stirring at high temperatures for at least one hour; and a redox reaction, with oxidizing and reducing agents. |
| 主权项 |
1. A binding dispersion for the production of insecticide paints, consisting of an aqueous dispersion of modified VeoVa vinyl, including active biocide materials such as alpha-cypermethrin, D-allethrin and pyriproxyfen, where the monomers making up the polymer forming the mass thereof are vinyl acetate and VeoVa, which further comprises as emulsifiers hydroxyethyl cellulose, alkylaryl polyglycol ester sulfate, sodium salt, alkylaryl polyglycol ether sulfate, sodium salt, sodium bicarbonate, block copolymers of ethylene oxide and propylene oxide, butyl acrylate and vinyltrimethoxysilane, and as catalysts it incorporates sodium hydroxymethanesulfinate, ammonium persulfate and sodium metabisulfite, characterized in that the active biocide materials it includes are immersed in the VeoVa vinyl polymer mass, such that said active materials surround the polymer particles forming a core-shell type structure, i.e., polymer core and shell of active ingredients. |
