Acronal V ap is processed with fillers in usual mixers. Vacuum planetary mixers have proven suitable for producing sealants. In order to gain optimal filler . Acrylic/vinyl acetate copolymer emulsion. Used in adhesives for laying PVC floor coverings and carpets with many different backings. Offers benefits such as hig. Description. An acrylic/vinyl acetate copolymer emulsion; used as a base for industrial adhesive formulations used as base for packaging and laminating.
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Acronal® V 275 NA
The deformable non-spherical particles apparently facilitate closer packing of the particles than can be achieved with polymodal particle size distributions. Their latex particles are desirably no larger than 1. In embodiments using these monomers desirably at least 5, 10 or 15 wt.
It may be used for molding or forming operations, as a thixotropic material for flexible membranes orin coatings or in sealants. The information presented here was acquired by UL from the producer of the product or material or original information provider. The mixer usedhad variable mixing speeds from 40 to rpm. When the particle sizedistribution of Examples 11 and 10 are compared it can be seen that the carboxylated latex provides a smaller diameter particle distribution on average.
Country Please choose your country. Desirably the latex polymers contain at least 0. The total polymer solids content can easily be varied from 70 to 92 or more wt.
Acronal® V na by BASF Dispersions & Resins – Adhesives & Sealants
A method for acronzl at least one unsaturated monomer in the presence of a latex results in a high solids dispersion of polymer particles with lower viscosities than traditionally observed.
Suspendisse sed enim et lectus pellentesque gravida. Total solids of the final dispersion were equal to These include theconjugated dienes preferably 4 to 8 carbon atoms ; other monomers having carboxylic acid or ester functionality such as di-n-butyl maleate; acrylicacid; maleic anhydride; isobutyl itaconate; acrylonitrile; alkyl acrylonitriles; acrylamides; acronaal derivatives thereof; alpha-methylstyrene, styrene, vinyl chloride, vinylidene chloride, vinyl propionate and other higher esters of the vinyl acetate family having from4 to 30 carbon atoms.
Examples 1, 2, 3 and 4 show how acrylate polymer dispersions were prepared at 72, 79, 80, and 87 percent solids. Fully coalesced and dried films of this dispersion showed two separate glass transition temperatures as in Example 1. The monomer and additives stream was added to the reactor over 4 hours, followed by continued agitation for another 30 minutes, before the TBHP was added for starting the monomer scavenging step. Also, mixtures of latexes can be used as the starting material giving even more flexibility to the composition and properties of the final dispersionand films or caulks derived from the dispersion.
Desirably,for the higher solids polymer dispersions, at least 5, 10, 15, 60, or 70 wt. A 1 liter jacketed resin kettle was used as the reactor.
Choose your language This site is available in the following languages: The starting latex adjusted to the appropriate pH e. The high solids makes the material economical to ship or store and if formulated into a caulking sealant results in a sealant with desirable properties such as low modulus, high elongation and low shrinkage. Flexible Packaging Applications We innovate to make your adhesives stick.
These monomers may be used both in the latex and as added monomers. Graphic Arts Acrylic dispersions for graphic arts film application. Process for preparing carpets having polyurethane backings obtained from polyurethane latex formulations.
An anchor type mixing blade is desirable.
The particle size distribution trimodal and the mean particle size was 3. A high solids polymer dispersion according to claim 1, wherein at least 20 wt. Innovative solutions for adhesive raw materials Adhesives product selection guide.
The remainder of the monomer mixture was then added dropwise over a 75 minute period. In this example, the monomers comprised 15 wt. One group is polymer particles of a weight average diameter from about 0.
Synthetic core-shell particle resin emulsion, process for producing and coating compositions comprising same. A solution of sodium formaldehyde sulfoxylate Abex JKB and deionized water 4. Alternatively the caulking formulation may achieve equivalent solids content with less acromal. General Procedure B was used for polymerization. Desirably, in one embodiment the polymers of the latex have at least 50, 70, 80 or 90wt. In embodiments using repeat units from these monomers desirably at least 5, 10, or 15 wt.
A high solids polymer dispersion according to claim 26, wherein said latex comprises at least 50 wt. Duis sodales ante risus.
Adhesive Raw Materials
Protective colloid-free plastics dispersion having a bimodal particle size distribution. Preferred initiators include oil soluble azo and peroxy thermal initiatorstypically used in solution polymerizations in organic solvents such as, butnot limited to, 2,2’azobisisobutyronitrile, 2,2’azobis 2,4-dimethylvaleronitrile2,2′-azobis 2-methylbutyronitrile acronall, di 2-ethylhexyl peroxydicarbonate, tert-amyl peroxyneodecanoate, hexyleneglycol peroxy neoheptanoate. This example used the same latex and procedure as Example 12 and the sole monomer was n-lauryl methacrylate.