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.

Author: Tuhn Akinonos
Country: Colombia
Language: English (Spanish)
Genre: Love
Published (Last): 15 December 2005
Pages: 318
PDF File Size: 1.64 Mb
ePub File Size: 6.59 Mb
ISBN: 799-7-99759-173-8
Downloads: 80331
Price: Free* [*Free Regsitration Required]
Uploader: Tazil

A process for preparing low-viscosity, aqueous polymer dispersions with polymer volume concentrations of at least 50 vol.

It is desirable that the plasticizer be thermodynamically compatible with the polymer s so that the plasticizer s and polymer s do not phase separate, possibly destabilizing the dispersion, during storage. Dispersions of polymer particles in water acrlnal been used extensively in water-based acromal such as coatings and caulking. Lorem ipsum doloramet, conseteture sadipscing. Redox initiators such as, but not limited to, tert-butyl hydroperoxide or cumene hydroperoxide with sodium formaldehyde sulfoxylate or sodium bisulfite or potassium metabisulfite can also be used successfully.

The final dispersion has a broad and multimodal particle size distribution with one mode centered at about 2 to 3 microns, another at about 6 micronsand a shoulder at about 0. By decreasing the relative amount of water in caulking formulations one can decrease the maximum water loss and maximum amount of shrinkage.

The latex also serves as the water-based media for further polymerization. By selecting the appropriate monomers for thelatex and polymerization two or more phase separated polymers may be present in the caulk giving two Tg values and both low temperatures flexibility and low tack in one formulation.

The final dispersion had a cone and plate viscosity Brookfield Model No. This example is similar to Example 10 above, instead using a non-carboxylated nitrile latex. A high solids polymer dispersion comprising: The caulking formulation may include various plasticizers such as low molecular weight i. Register here to get additional information like specific downloads. The latex desirably is an anionically stabilized latex.

Acronal Export Data and Price to India –

Water soluble thermal initiators typically used in emulsion polymerization such as, but not limited to, ammonium persulfate can also be used successfully.


The material was then packaged into cartridges. A substantial portion of these monomers can be in the starting latex and still result in an acceptably low Tg aconal the latex copolymer. Polymeric emulsifiers, formed during the reaction or added separately may also be used. A preferred multimodal distribution is from 5 to qcronal weight percent of the particles having diameters between 0. Tape – Removable Dispersions for removable tape applications. The latex can be formed by emulsion polymerization of unsaturated monomers or by g a preformed polymer such as a urethane polymer in an aqueous media.

Desirably the caulking releases less than 25 or 30, preferably less than 20 or 15 wt.

Example 18 Several examples from U. Example 11 This example is similar acdonal Example 10 above, instead using a non-carboxylated nitrile latex. Such acrylates are derived from the esterification of one or more alkyl acrylic acids, such as methacrylic acid and one or more alkyl alcohols having 1 to 12 carbon atoms. The mixer usedhad variable mixing speeds from 40 to rpm.

Accronal low speed, high torque electrically powered stirrer equipped with an anchor-type blade was used for agitation. It may be used for molding or forming operations, as a thixotropic material for flexible membranes orin coatings or in sealants. The content of such third party sites is not within our control, and we cannot and will not take responsibility for the information or content. High solids polymer particle dispersions are created by polymerizing monomers in the presence of a latex i.

A lowspeed, high torque electrically powered stirrer equipped with an anchor type blade was used for agitation.

Acronal® – flooring :: BASF Sustainable Construction North America

Preferred polymers for the process and sealants acronall poly- acrylatepoly vinyl acetateand copolymers or combinations thereof having low Tg values. In a continuous polymerization a heel of previously formedpolymer would be added to the reactor and heated to the proper reaction temperature under a nitrogen blanket. US USB1 en A high solids polymer dispersion according to claim 10, wherein at least 70 wt.


Acronla a typical lab preparation a 2 liter jacketed resin kettle was used as the reactor. Powdery copolymer comprising methyl methacrylate and monomer having a basic nitrogen atom. The polymer exhibits good long term storage stability.

Aqueous polymer dispersion containing a polydisperse particle size distribution.

A low speed, high torque electrically powered stirrer equipped with an anchor type blade was used caronal agitation. The dispersions are useful to form sealants, membranes, etc. This type ofreaction scheme would be very similar to a CSTR continuous stirred tank reactor set up.

The dispersion can be used as a saturant or binder for paper, textiles or nonwovens. Alkyl alkyl acrylates are included in the general terms the alkyl acrylates although they tend to have higher glass transition temperatures. Industry Please choose your industry.

Acronal® V 275 na

The starting latex had Closer packing of the particles facilitates higher solids content with processable viscosities. The breadth of the particle size distribution and variation in shape of the particles are easily seen by this microscopic examination technique which sandwiches a drop of the polymer dispersion between avronal microscope slides.

The presence of at least two substantially different diameter acrona, in the distribution of particle diameters within one dispersion of polymer particles is partially attributed with achieving solids contents above 70 wt.

The monomer composition polymerized in the presence of the latex need not be similar to the composition of the monomers used to make the latex and may be chosen to modify the properties of dried films from the dispersion.

However, UL assumes no responsibility or liability for the accuracy of the information contained on this website and strongly encourages that upon final product or material selection information is validated with the manufacturer.

Adhesive Raw Materials

A latex, as specified afronal, is defined as a dispersion of small polymer particles i. Duis sodales ante risus. Other emulsifiers such as nonionic or cationic emulsifiers can be used, or blends of anionic and nonionic emulsifiers can be used.

Author: admin