摘要:
An antimicrobial composition of 3-iodo-2-propynylbutyl carbamate (IPBC) and 1,3-butylene glycol (BG) as solvent, in a defined weight ratio, preferably 9-11% IPBC and 89-91% BG, and personal care formulations including the composition in an amount of about 0.1-0.2% therein, at a pH of 4-9, is described.
摘要:
A process is provided for making a free-flowing powder of a complex of an alpha-hydroxy acid (AHA) and/or a beta-hydroxy acid (BHA) and a vinylpyrrolidone (PVP) polymer, copolymer or graft polymers, as the complexing agent, at high acid loadings, preferably 20-60% by weight. The presence of VP polymers, copolymers or graft polymers in the complex reduces the skin irritation effect of the acid when applied to the skin of the user. The process involves applying an aqueous solution or slurry of the acid to PVP, and, substantially immediately thereafter, evaporating the water to form a free-flowing powder of the complex of the acid and VP polymers, copolymers or graft polymers.
摘要:
A water soluble, antimicrobial composition having antifungal activity useful for disinfecting a contact lens comprise (a) polyhexamethylene biguanide and (b) iodopropynylbutyl carbamate, in a weight ratio of (a):(b) of at least 100:1.
摘要:
A free-flowing, fine white powder of a substantially aqueous stable complex of a strongly swellable, moderately crosslinked polyvinylpyrrolidone (PVP) having an aqueous gel volume of about 15 to 150 ml/g of PVP and a Brookfield viscosity in 5% aqueous solution of at least about 10,000 cps, and H.sub.2 O.sub.2, in substantially a 1:1 molar ratio of said constituents.
摘要翻译:具有强溶胀,中等交联的聚乙烯吡咯烷酮(PVP)的基本上水稳定的络合物的自由流动的细白色粉末,其具有约15至150ml / g PVP的水凝胶体积和5%水溶液中的Brookfield粘度 至少约10,000cps和H 2 O 2,所述组分的摩尔比基本上为1:1。
摘要:
What is described herein is a PVP-I.sub.2 composition comprising strongly swellable, lightly crosslinked PVP complex to iodine, wherein said composition is capable of releasing free iodine slowly with time in the presence of water. Preferably the complex has about 10-15% by weight available iodine and about 4-8 weight % iodide, and is a free-flowing, fine, lightly yellow powder.
摘要:
Urea-hydrogen peroxide-polyvinylpyrrolidone (PVP) in the form of a free-flowing powder is stable against decomposition in water and alcohol solvents. The product is obtained by spraying an aqueous solution of urea-hydrogen peroxide onto a fluidized bed of PVP and drying; it contains about 5%-20% by weight H.sub.2 O.sub.2 and less than about 5% water. The urea-hydrogen peroxide solution is applied onto the fluidized PVP bed at a predetermined rate, suitably about 0.5-30 g of solution/minute/kg PVP in the bed, and, preferably, about 1-3 g/min/kg PVP.
摘要翻译:以自由流动粉末形式的尿素 - 过氧化氢 - 聚乙烯吡咯烷酮(PVP)在水和醇溶剂中是分解的。 通过将尿素 - 过氧化氢水溶液喷雾到PVP的流化床上并干燥获得产物; 它含有约5%-20%重量的H 2 O 2和小于约5%的水。 将脲 - 过氧化氢溶液以预定速率施加到流化PVP床上,合适地在床中约0.5-30g溶液/分/ kg PVP,优选约1-3g / min / kg PVP。
摘要:
A free-standing, porous foam product comprising an integral network of PVP molecules hydrogen-bonded to H.sub.2 O.sub.2 molecules, optionally including a water-soluble gelling agent; e.g. hydroxyethyl cellulose; in an amount up to 60% by weight of the product, its PVP content being about 25-90% by weight of the product, and the H.sub.2 O.sub.2 content being about 5-24% by weight. In the absence of a gelling agent, the product has a bulk density of about 0.3 to about 0.5 g/cc and a porosity of about 60-70%. When a gelling agent is present in the product, its bulk density and porosity of the product is substantially reduced and, accordingly, it has a more foam-like structure and appearance.
摘要翻译:一种独立的多孔泡沫产品,包括与H 2 O 2分子氢键合的PVP分子的整体网络,任选地包括水溶性胶凝剂; 例如 羟乙基纤维素; 其量高达产品的60重量%,其PVP含量为产物重量的约25-90重量%,H 2 O 2含量为约5-24重量%。 在没有胶凝剂的情况下,该产品具有约0.3至约0.5g / cc的堆积密度和约60-70%的孔隙率。 当产品中存在胶凝剂时,产品的体积密度和孔隙率显着降低,因此具有更多的泡沫状结构和外观。
摘要:
What is provided herein is a method for reducing the microbial content of surfaces which comprises contacting said surface with a microbiocidal amount of a substantially anhydrous complex of PVP and H.sub.2 O.sub.2.
摘要翻译:本文提供的是减少表面微生物含量的方法,其包括使所述表面与杀微生物剂量的基本上无水的PVP和H 2 O 2复合物接触。
摘要:
A method of effecting flocculation in aqueous systems which comprises applying to said systems an effective amount of a compound or mixture of compounds having the formula:Z--CH.sub.2 --CHOH--CH.sub.2 --N.sym.--(CH.sub.3).sub.2 ].sub.n --CH.sub.2 --CHOH--CH.sub.2 --Zin which Z is either X or --N(CH.sub.3).sub.2 ; is a halogen having an atomic weight greater than 34; and n is an integer of from 2 to 20.
摘要:
Antimicrobial compounds having the structure: ##STR1## wherein X is chlorine, bromine or iodine and R' and R" may be the same or different and are selected from the group consisting of hydrogen and acyclic hydrocarbon monovalent radicals having 1 to 8 carbon atoms.