Optical density polymer latex solids

Treated porous material. Patent number: Abstract: The present disclosure describes a method for preparing a treated cellulosic material comprising: providing a cellulosic material; a first treatment protocol comprising impregnating the cellulosic material with an aqueous dispersion comprising a polymer, the polymer comprising an olefin-carboxylic acid copolymer neutralized at least in part by ammonia or an amine; and a second treatment protocol comprising heating the cellulosic material, wherein at least a portion of the ammonia or the amine is liberated from the cellulosic material.

Low-density polyethylene LDPE is a thermoplastic made from the monomer ethylene. It was the first grade of polyethyleneproduced in by Imperial Chemical Industries ICI using a high pressure process via free radical polymerization. The EPA estimates 5.

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The parameters including physico-chemical properties such as dry rubber content DRCtotal solids content TSCvolatile fatty acid VFA number, alkalinity ammonia content and potassium hydroxide KOH number and physical properties such as viscosity and cross-link density are important to the trading and processing of natural rubber latex and its products. Traditionally these properties of field and concentrated latices and their products including thin and thick films are evaluated with chemicals and time-consuming methods and with the need of technical experts. The near-infrared NIR spectroscopy is a nondestructive, rapid, accurate and environment-friendly technique.

The present invention relates to dispersions of polymer particles having two separate maxima of the particle size distribution bimodal dispersions wherein the small particle size fraction is in the nano —particle size range. The invention also relates to a process for producing these low viscosity, high-solids bimodal latex dispersions. It also relates to the use of these high-solids latex dispersions as binders for the preparation of paper coatings having low high-shear viscosity, high-solids, high water retention, and good runability.

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Polymers, both natural and synthetic, are created via polymerization of many small molecules, known as monomers. Their consequently large molecular massrelative to small molecule compoundsproduces unique physical properties including toughnessviscoelasticityand a tendency to form glasses and semicrystalline structures rather than crystals. The terms polymer and resin are often synonymous with plastic.

To assay serum antibodies by indirect ELISA, it is critical to eliminate a variety of false positive and negative reactions attributed to the principle. These include 1 the background BG noise reaction caused by hydrophobic binding of immunoglobulin components in sample specimens to solid surfaces, 2 false positive reaction caused by non-specific binding of immunoglobulins to target-antigens by protein-protein interactions, and 3 other false positive and negative reactions caused by buffer components. No current blocking agents can prevent these false positive and negative reactions, and antibody assay results vary significantly depending on the buffer system used.

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Please take this quick survey to tell us about what happens after you publish a paper. This work describes the dialysis, the determination of the total soap content in the latex system by conductometric titration, the effect of dilution on soap distribution between the aqueous and polymer phases, the confirmation of the average diameter of the latex particles, the electrophoretic behavior, and the establishment of the solids content below which the latex behaves according to Beer 's law for the transmission of light. Unable to display preview. Download preview PDF.

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The rapidly increasing concern over environmental changes necessitates the employment of ecologically friendly surfactants for use in emulsion polymerisation without, however, compromising the latex stability or the properties of the cast films. To this end, three series of water-borne, lightly cross-linked latexes based on methyl methacrylate and butyl acrylate were prepared by free radical emulsion polymerisation. Each of the latex series was stabilised by one anionic, amino-acid based surfactantnamely: sodium lauroyl sarcosinate SLSarsodium myristoyl sarcosinate SMSar and sodium lauroyl glutamate SLGlu.

Specialty and Industrial Coatings. Inks and Printing. Intermediates and Solvents.

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