Materials and methods for protein purification, and particularly for protein purification by ammonium sulfate precipitation, are provided herein.

Materials and methods for protein purification, and particularly for protein purification by ammonium sulfate precipitation, are provided herein.

The present invention addresses the problem of providing, for example, a novel metal surface treatment agent which can form a film capable of maintaining antimicrobial performance on or over a surface of a metal material. The problem can be solved by a metal surface treatment agent containing: a prescribed copolymer (A) obtained by polymerizing a compound (a) represented by the following Formula (1) [in Formula (1), R.sup.1 and R.sup.2 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R.sup.3 and R.sup.4 each independently represent an alkyl group having 1 to 5 carbon atoms, and X— represents an ion of a halogen atom, or an acid anion] with a compound (b) represented by the following Formula (2) or (3) [in Formula (2), R.sup.5 represents a hydrogen atom or a methyl group, R.sup.6 and R.sup.7 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a benzyl group, or a hydroxyalkyl group having 2 or 3 carbon atoms; and, in Formula (3), R.sup.8 represents a hydrogen atom or a methyl group]; and a water-soluble or water-dispersible resin (B).

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The present invention relates to an anti-tack formulation of high solids content that uses effective amounts of a fine particle size talc, a water soluble cationic polymer, one or more nonionic surfactants, and one or more alkali metal fatty acid soaps. The high solids content anti-tack formulation is capable of being easily shipped to a customer's location and is stable and easily pumped after shipment to a customer. The high solids content anti-tack formulation can be diluted to a low solids content formulation for use in anti-tack applications, particularly rubber slab dipping applications. The anti-tack formulation provides improved anti-tack performance when coating uncured rubber products.

The present invention relates to an anti-tack formulation of high solids content that uses effective amounts of a fine particle size talc, a water soluble cationic polymer, one or more nonionic surfactants, and one or more alkali metal fatty acid soaps. The high solids content anti-tack formulation is capable of being easily shipped to a customer's location and is stable and easily pumped after shipment to a customer. The high solids content anti-tack formulation can be diluted to a low solids content formulation for use in anti-tack applications, particularly rubber slab dipping applications. The anti-tack formulation provides improved anti-tack performance when coating uncured rubber products.

A radiation-curable ink jet ink set includes a radiation-curable dark-colored ink having a surface tension γ1 and a radiation-curable light-colored ink having a surface tension γ2. The surface tensions of the radiation-curable inks satisfy γ1>γ2.

In order to provide an organic radical battery having excellent high power, discharge characteristics at a high current, and cycle characteristics, an electrode having a repeating unit having a nitroxide radical site represented by formula (1-a) and a repeating unit having a carboxyl group represented by formula (1-b) in a range in which x satisfies 0.1 to 10 and using a copolymer having a cross-linked structure as an electrode active material is used for the organic radical battery.

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(wherein in Formulas (1-a) and (1-b), R.sup.1 and R.sup.2 each independently represent hydrogen or a methyl group; and x represents a mol % of Formula (1-b) in the total 100 mol % of Formulas (1-a) and (1-b).)

The invention relates to compositions and methods of treatment employing compositions comprising polyelectrolyte complexes. The compositions include a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge and a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge. The total polyelectrolyte concentration of the first solution is at least 110 millimolar. The composition is free of coacervates, precipitates, latex particles, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte. The composition may be a concentrate, to be diluted prior to use to treat a surface.

The invention relates to compositions and methods of treatment employing compositions comprising polyelectrolyte complexes. The compositions include a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge and a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge. The total polyelectrolyte concentration of the first solution is at least 110 millimolar. The composition is free of coacervates, precipitates, latex particles, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte. The composition may be a concentrate, to be diluted prior to use to treat a surface.

Some embodiments of the present disclosure relate to polymerizable compounds that comprise biocidal activity and/or the potential for increased biocidal activity and that comprise at least one hydrophobic portion and at least one hydrophilic portion. Together the hydrophobic portion and the hydrophilic portion of the compounds may provide the polymerizable compounds with one or more surfactant-like properties. The polymerizable compounds can be incorporated into polymer coating formulations. The polymer coating formulations can be used to coat one or more surfaces of a substrate. The coating formulation can provide biocidal activity and/or the potential for increased biocidal activity to the coated substrate-surface.