A corrosion inhibitor composition, which includes i) an aqueous alcohol base fluid, ii) a mixture of at least three polysaccharides selected from carboxymethyl cellulose, gum arabic, pectin, a salt of alginic acid, chitosan, dextran, hydroxyethyl cellulose, and soluble starch, with each polysaccharide that is present in the mixture being present in an amount of 0.05 to 0.5 wt. %, based on a total weight of the corrosion inhibitor composition, iii) silver nanoparticles, and iv) a pineapple leaves extract. A method of inhibiting corrosion of metal during acid cleaning/pickling whereby the metal is treated with an acidic treatment fluid containing an acid and the corrosion inhibitor composition.

The present invention relates to the use of an activatable, de-esterified fruit fiber for preparing products in the food or non-food area. The invention also relates to products containing the activatable, de-esterified fruit fiber.

The present invention relates to the use of an activatable, de-esterified fruit fiber for preparing products in the food or non-food area. The invention also relates to products containing the activatable, de-esterified fruit fiber.

The present invention relates to the formation of gels. In particular, the present invention is directed to a method of forming a cross-linked polymer hydrogel using competitive ligand exchange.

The present invention relates to the formation of gels. In particular, the present invention is directed to a method of forming a cross-linked polymer hydrogel using competitive ligand exchange.

Fluid contaminants may be prevalent in many industries, such as the mining industry. Functionalized saccharide polymers comprising two or more monosaccharide units linked by glycosidic bonds and having a portion of the monosaccharide units oxidatively opened and functionalized with at least one aminocarboxylic acid covalently bound through nitrogen at a site of oxidative opening may be utilized in conjunction with fluid remediation processes, such as froth flotation. In non-limiting examples, the functionalized saccharide polymers may also be useful for promoting dust control, particulate coating, clay stabilization, and various subterranean treatment operations. Glycine represents one example of an aminocarboxylic acid that may be covalently bonded through nitrogen at a site of oxidative opening.

The present invention includes a hydrogel and a method of making a porous hydrogel by preparing an aqueous mixture of an uncrosslinked polymer and a crystallizable molecule; casting the mixture into a vessel; allowing the cast mixture to dry to form an amorphous hydrogel film; seeding the cast mixture with a seed crystal of the crystallizable molecule; growing the crystallizable molecule into a crystal structure within the uncrosslinked polymer; crosslinking the polymer around the crystal structure under conditions in which the crystal structure within the crosslinked polymer is maintained; and dissolving the crystals within the crosslinked polymer to form the porous hydrogel.

The present invention includes a hydrogel and a method of making a porous hydrogel by preparing an aqueous mixture of an uncrosslinked polymer and a crystallizable molecule; casting the mixture into a vessel; allowing the cast mixture to dry to form an amorphous hydrogel film; seeding the cast mixture with a seed crystal of the crystallizable molecule; growing the crystallizable molecule into a crystal structure within the uncrosslinked polymer; crosslinking the polymer around the crystal structure under conditions in which the crystal structure within the crosslinked polymer is maintained; and dissolving the crystals within the crosslinked polymer to form the porous hydrogel.

A protein/polysaccharide/essential oil nano-edible film. The essential oil nano-edible film includes the following raw materials in parts by weight: 1-8 parts of a quinoa protein-Atrina pectinata polysaccharide nanocomposite, 2-11 parts of an Atrina pectinata polysaccharide-essential oil nanocomposite, 1-12 parts of a quinoa protein, 2-16 parts of Atrina pectinata polysaccharide, and 5-53 parts of water. The present invention helps to solve the problem, in a conventional protein film, of the loss of flavor and even toxic side effects caused by the adding of a plasticizer and a crosslinking agent to improve the mechanical strength, the use of a lipid substance that has the capability to easily form a dense molecular network structure to improve the water and gas barrier properties, and the migration of an additive, the plasticizer, or a polymer degradation by-product thereof generated in reaction, and a solvent remaining in the polymerization reaction from the film to food.

A protein/polysaccharide/essential oil nano-edible film. The essential oil nano-edible film includes the following raw materials in parts by weight: 1-8 parts of a quinoa protein-Atrina pectinata polysaccharide nanocomposite, 2-11 parts of an Atrina pectinata polysaccharide-essential oil nanocomposite, 1-12 parts of a quinoa protein, 2-16 parts of Atrina pectinata polysaccharide, and 5-53 parts of water. The present invention helps to solve the problem, in a conventional protein film, of the loss of flavor and even toxic side effects caused by the adding of a plasticizer and a crosslinking agent to improve the mechanical strength, the use of a lipid substance that has the capability to easily form a dense molecular network structure to improve the water and gas barrier properties, and the migration of an additive, the plasticizer, or a polymer degradation by-product thereof generated in reaction, and a solvent remaining in the polymerization reaction from the film to food.