Latexes acrylic

Latex acrylics Latex allergies Latex-casein Latexes... 

Table 1. Exterior Acrylic Latex Flat Water-Based House Paint...

Table 5. One-Part Pigmented Siliconized Acrylic Latex Sealant ...

Table 6. One-Part Clear Acrylic Latex Sealant Formulation ...

This molecule is a copolymer with polymethyl methacrylate (PMMA) in acrylic latex paints, where the hydrophobic PMMA is surrounded by hydrophilic polyvinyl acetate molecules. Such a suspension of a hydrophobic polymer wrapped in a hydrophilic polymer is called a latex. 

The Bingham plastic model can describe acrylic latex paint, with a yield stress of 112 dyn/cm2, a limiting viscosity of 80 cP, and a density of 0.95 g/cm3. What is the maximum thickness of this paint that can be applied to a vertical wall without running ... 

One-part clear acrylic latex sealant formulation, 22 42t One-part manganese dioxide-cured polysulfide formulation, 22 4 It One-part pigmented siliconized acrylic latex sealant, 22 42t One-part RTV silicones, 22 596 One-part silicone cross-linkers, 22 33t One-part silicone sealant formulation, 22 34t... 

Bonardi, C., Christou, Ph., Llauro-Darricades, M.E., Guillot, J., Guyot, A. and Pichot, C., 1989, Polymer Latex III International Conference, Characterization of Acrylic Latexes Functionalized by N-Methylol Acrylamide, 6/1-6/14, Plastics and Rubber Institute, London. 

House paint—titanium extender in acrylic latex with 100% rutile titanium dioxide. 

Although acidic paint formulations based on the chlorine-containing vinyl acrylic latex copolymer give excellent anti-corrosive performance, they do exhibit two unusual features not present in the corresponding alkaline formulations ... 

Substrates, Paints and Coatings. Both flash rusting and underfilm darkening studies exployed a white, pH 4.5, primer formulation (see Appendix), designated as Standard, based upon Haloflex 202, a chlorine-containing vinyl acrylic latex. A zinc phosphate free formulation, designated as Non-Standard, of pH6 was prepared by substitution of zinc phosphate for barytes. The comparison paints were a commercial butyl acrylate-methyl methacrylate water borne primer, formulated at pH 9, and a solvent based chlorinated rubber primer. 

Primer Formulation Based on Chlorine Containing Vinyl Acrylic Latex... 

Table 6.11 Effect of glass transition temperature Tg on the properties of acrylic-latex-modified mortar (Ma and Brown)...

M. A. Shewin, "High Performance Acrylic Latex Sealants," in Ref. 9. 

One of the problems encountered in the entrapment of activated charcoal in a polymer matrix is the blinding-off of the pores of the charcoal, thus inactivating it. Because the pores of the carbon are responsible for its ability to adsorb organics, any pores that are filled or coated with a polymer matrix reduce its effectiveness. Conventional treatments involve blending the carbon into an acrylic latex and then applying the slurry to a reticulated foam. Upon drying, a coalescence encapsulates the carbon. 

It was determined that Adoarwax 225, one of the bisamide waxes, is chemically incompatible with RDX. This class of material was dropped from the program. Whether the incompatibility is typical of this family of waxes was not determined. Work on the acrylic latexes was discontinued when it was found that the result-... 

Acrylics. There are two principal classes of acrylic sealants latex acrylics and solvent-release actylics. High molecular weight latex acrylic polymers are prepared by emulsion polymerization of alkyl esters of acrylic acid, The emulsion polymers are compounded inlo sealants by adding fillers, plasticizers, freeze-thaw stabilizers, thickeners, and adhesion promoters. As is true of the silicone lalex sealants, die acrylic latex sealants are easy to apply and clean with water. 

Acrylic latex sealants. Basic acrylic latex sealant formulations were compounded in a sigma blade mixer, as shown in Table 3. The water-borne silanes were then incorporated into a base. Standard wet and dry peel adhesion determinations from various substrates were performed periodically in accordance with ASTM C794-8. 

Acrylic latex sealants. Adhesion strengths on three substrates after 3 months sealant storage (0.5% silane added) were evaluated and the results are presented in Table 4. 

Composites can also be prepared by electropolymerization from solutions containing dissolved polymer 307). Since films of polypyrrole or polythiophene are normally porous, it seems most likely that the dissolved polymer is simply entrained in the pores. Similarly, composites have been prepared by polymerization of pyrrole in the presence of acrylic latex, giving blends with 10-30 % polypyrrole that are conducting yet processable 808). Presumably the polypyrrole is distributed throughout the latex particles. 

Surfactant Interactions in Polyvinyl Acetate and Poly (vinyl acetate-butyl acrylate) Latexes... 

The second objective is to verify experimentally the predicted relationship between polymer polarity and surfactant adsorption by studying the adsorption of a non ionic surfactant that shows a saturation type isotherm behavior on vinyl acrylic latexes of varying polarity. 

In order to achieve the above objectives, three vinyl acrylic latexes of varying butyl acrylate content have been prepared and cleaned1 for use in the study. Several anionic and nonionic surfactants commonly usod in emulsion polymerization have been used to investigate the effects of surfactant structure and polymer composition on the solubilization process. Polarity of latex surface estimated from contact angle measurements have been used to study the effect of polymer polarity on surfactant adsorption. 

Figure 3. Thickening of vinyl acrylic latexes in the presence of NaLS ( 1) ((O) PVAC ho mo polymer (J ) 70/30 VA/BA copolymer)...

ANIONIC SURFACTANTS STUDIED IN VINYL ACRYLIC LATEXES 07)... 

Formation of solubilized surfactant-latex complexes can influence the properties and performance of vinyl acrylic latexes prepared with NaLS and other penetrating type anionic surfactants. Such complexes seem to affect glass transition temperature and film coalescence process (12). 

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