5 results about "Emulsion polymerization" patented technology

The invention relates to a multi-purpose strippable acrylate adhesive microporous material and a preparation method of the material, in particular to an acrylate adhesive material and a preparation method of the material, and solves the problems of low shearing strength and stripping resistance of the existing acrylate adhesives. The adhesive microporous material is prepared from acrylate resin, foaming agent, foam stabilizer, thickener, plasticizer, cross-linking agent, isopropanol and filler. The preparation method comprises the following steps: (1) preparing raw materials of acrylate resin according to weight ratio; (2) adding each raw material component prepared in the step (1) in a reaction kettle under controlled dropping speed, and performing core-shell emulsion polymerization to obtain acrylate resin; and (3) sequentially adding acrylate resin and the rest of raw materials prepared in the step (2) in the reaction kettle, dispersing, drying, and transferring onto a substrate to obtain acrylate adhesive. The acrylate adhesive microporous material has the advantages of high shearing strength, and easy stripping, and is mainly applied to poster, wall sticker and adhesive on various decorative stickers.

The invention relates to a polymer composite material filled with industrial lignin as well as a preparation method and an application thereof. The polymer composite material is characterized in that substances forming the polymer composite material comprise rubber A, lignin and a third constituent, wherein the ratio of the oven dry parts by weight of the substances in the polymer composite material is 100:(10-300):(0-100); the rubber A is natural rubber or synthetic rubber produced by an emulsion polymerization method; the lignin is hydroxymethylation modified lignin produced from alkali lignin or black liquor; in a technical scheme in which the oven dry part by weight of the third constituent is greater than 0, the third constituent is one or the combination of more than two of other rubbers or plastics except the rubber A, or a plasticizer or operating oil, or argil, montmorillonoid, kaolin, kieselguhr or calcium carbonate, or papermaking pulp taking calcium carbonate as a main ingredient, or alkali-preparing waste, namely, white clay; the polymer composite material filled with the industrial lignin is of a block form or a powder form. According to the polymer composite material filled with the industrial lignin as well as the preparation method and the application thereof disclosed by the invention, the manufacturing cost is further decreased, and wastewater generated during the production process is further reduced.

The present invention relates to an aqueous resin dispersion, obtained by subjecting a polymerizable compound (C) containing a compound (C1) having a carbon-carbon unsaturated bond to an emulsion polymerization in the presence of a surfactant (A) and a surfactant (B) free from a radical-polymerizable substituent.

The invention discloses a preparation method of a waterborne modified acrylic resin type hyperdispersant. The preparation method comprises the following two steps: (1) synthesizing high molecular acrylic resin liquid through emulsion polymerization; and (2) adding a surfactant for compounding, so as to obtain a target product of the patent. The hyperdispersant is mainly applied to the fields of waterborne printing ink, waterborne coatings, waterborne ink and the like, belongs to the waterborne modified acrylic resin type hyperdispersant, can be used for dispersing various types of inorganic and organic pigments and effectively and stably dispersing pigments into water for a long time, and the dispersion particle size can reach a nanometer level, so that the powerful guarantee is provided for the coloring of the waterborne coatings, the waterborne printing ink and the waterborne ink, and the preparation method is a waterborne core technique for coatings and the printing ink; the invention relates to application testing of the product of the patent in the waterborne printing ink field in the application field, the printing ink will be developed in the truly environment-friendly VOC-free waterborne printing ink in future, and relatively environment-friendly packaging printing ink can meet the current market development trend.