203 results about "Pyrithione" patented technology

Zinc pyrithione and copper pyrithione are highly evaluated in the market as an antidandruff agent for shampoo, or an antifouling agent for ship bottom paint and fish-farming net, or an antibacterial / antifungal agent or preservative / mildewcide for industrial products and household articles. For enhancing the market value thereof, there has been a demand for a product that not only attains an increase in conventional antibacterial / antifungal effects but also exhibits novel bioactive effects and that achieves improvement with respect to problems and drawbacks relating to properties, such as solubility in seawater, and stability, such as thermal stability and weather resistance, of polymer materials. There is provided a novel pyrithione complex compound obtained by converting the conventional pyrithione metal salt to a complex compound with an oxide or hydroxide of metal such as zinc, copper or aluminum. As compared with the conventional pyrithione metal salt, this complex compound exhibits superior antibacterial / antifungal effects, newly realizes a hair-regrowing effect and successfully attains improvement with respect to the solubility in seawater and thermal stability / weather resistance of polymer materials.

Antimicrobial compositions based on the synergistic combination of 2-methyl-3-isothiazolone and selected commercial microbicides where the compositions are substantially free of halogenated 3-isothiazolone, are disclosed. Particularly preferred are combinations of 2-methyl-3-isothiazolone together with benzoic acid, citric acid, sorbic acid, 1,2-dibromo-2,4-dicyanobutane, 1,3-dimethylol-5,5-dimethylhydantoin, phenoxyethanol, benzyl alcohol, zinc pyrithione or climbazole, that provide enhanced microbicidal efficacy at a combined active ingredient level lower than that of the combined individual 3-isothiazolone and commercial microbicide effective use levels.

Although zinc pyrithione is known as a good anti-dandruff ingredient, the blending amount needs to be decreased without lowering the effects in consideration of environmental pollution. For zinc pyrithione used as an antifouling coating ingredient for paint to be used at the bottom of a ship, there is a demand for developing a technology that achieves a combination of zinc pyrithione and cuprous oxide. Moreover, a further improvement in antimicrobial activity is required as an antiseptic and anti-mold ingredient for polymer materials. It has been found that a new complex of the present invention obtained by processing, at pH 8 to 12, an aqueous suspension or an aqueous paste containing zinc pyrithione or a zinc pyrithione / zinc oxide complex compound and ultrafine zinc oxide having an average particle size of 0.01 to 0.15 mm exhibits good physiologic / antibiotic activities such as anti-dandruff and hair restoration effects and underwater antiseptic and anti-mold effects. Thus, the above-described problems have been solved.

A kit for treatment of acne vulgaris, said formulation of the kit effectively inhibiting or killing Proprionibacterium without antibiotics. A preferred formulation alleviates the four pathogenic factors of acne.In a preferred method using the kit, a first skin-wash formulation comprising a higher zinc pyrithione concentration than the second leave-on formulation is applied to the affected area and subsequently washed off the skin with water. Then, a second leave-on formulation, preferably comprising a minimum of 0.25% zinc pyrithione with additional ingredients for eliminating or reducing other pathogenic factors of acne vulgaris, is applied to the skin.The kit includes a skin-wash component and a leave-on component comprising the acne treatment of the invention. Formulations are preferably applied as creams, lotions or emulsions.

A nonwoven web has a weight sufficient for construction industry use and comprises at least forty percent (40%) recycled waste paper. At least one surface of the web bears a biocide, e.g., has a biocide applied thereto. Preferably the weight of the web is greater than fifteen pounds per thousand square feet (15-lbs / MSF). Preferably the biocide is zinc pyrithione. The web preferably bears at least 50-grams of biocide per thousand square feet per side of said web. One example use of the web is as builders felt, with other uses including as a facer for a laminate board and for asphalt-impregnated webs. The biocide-bearing nonwoven web is specifically directed to use in building construction. One example use of the web is as builders felt, with other uses including as a facer for a laminate board and for asphalt-impregnated webs. Because building construction products must be tough, but priced as low as possible, this web is made largely from recycled waste paper (as opposed to virgin cellulose fiber, as a cost-reducing measure), and optionally clarifier sludge.