Abstract: A crosslinked PVP-I.sub.2 foam product, useful as an iodophor, contains about 0.1-2% crosslinker and about 16-18% total inorganic iodine.

Abstract: The present invention relates to the stabilization of an agricultural chemical concentrate in aqueous solution and the stabilized concentrate which comprises:(a) between about 0.1 and about 20 wt. % of a stabilizer composition comprising:(1) a C.sub.1 to C.sub.12 alkyl vinyl ether/organic acid ester copolymer, and(2) a polymer solubilizing amount of an aromatic petroleum distillate or an oxygen-containing solvent of an N-alkyl pyrrolidone, a C.sub.3 to C.sub.8 alkanol, a dibasic acid lower alkyl ester, an ether having a boiling point above 150.degree. C. or mixtures thereof and(b) between about 80 and about 99.9 wt. % concentrate containing a water-insoluble active agricultural chemical, a solvent for said agricultural chemical and a surfactant for said concentrate. The invention also relates to the use of said stabilized concentrate.

Abstract: Strongly swellable, moderately crosslinked poly(vinyl pyrrolidone/vinyl acetate) copolymer (XL-PVP/VA) in the form of fine, white powders characterized by (a) an aqueous gel volume of about 15 to 150 ml/g of polymer, (b) a Brookfield viscosity in 5% aqueous solution of at least about 10,000 cps, and (c) being prepared directly by precipitation polymerization of VP and VA monomers in the presence of a crosslinking agent in the amount of about 0.1 to about 2% by weight of VP and VA.

Abstract: This invention relates to a fast drying iodine complex solution having film forming capability and skin substantivity which solution consists essentially of:(a) between 1 and 25 wt % polyvinyl pyrrolidone/iodine (PVP/I) complex;(b) between 5 and 15 wt % vinyl pyrrolidone/vinyl acetate copolymer (PVP/VA);(c) between 0.5 and 1.5 wt % non-plasticizing polyethylene glycol (PEG);(d) between 35 and 75 wt % C.sub.1 to C.sub.4 alkanol;(e) between 12 and 35 wt % deionized water and(f) between 0 and 2.5 wt % of 1-vinyl-3-(E)-ethylidene pyrrolidone, based on total composition.The invention also relates to the method of preparing the film forming solution which has a drying time of less than 5 minutes.

Abstract: A one-step for making a lightly-crosslinked polyvinylpyrrolidone hydrogel by polymerizing vinyl pyrrolidone in water in the presence of a suitable crosslinker such as 1-vinyl-3(E)-ethylidene pyrrolidone and a free radical initiator under initial agitation conditions sufficient to overcome the inertia of the polymer when formed.

Abstract: Stable, water-based formulations containing high levels of water insoluble UV protectants/insecticides are provided herein as sprayable microemulsions containing a film-forming polymer, e.g. Agrimer.RTM. VEMA ES 425 [poly(methyl vinyl ether-maleic acid monobutyl ester)]. The polymers are solubilized either by partial neutralization with a base, or by emulsification with appropriate emulsifiers. These formulations produce single phase, micro- or mini-emulsions (particle size<1 micron) on dilution with water. The formulations are useful as UV protectants in veterinary use, for protection of UV-labile insecticides, and for "pour on" applications.

Abstract: 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.

Abstract: A method for determining a level of exposure to radiation utilizes a radiation dosimeter comprising a substrate provided with a radiation sensitive layer or patch having an optical density which varies in accordance with the degree of radiation exposure. In addition, the substrate is provided with optically readable coding which identifies encoded mathematical parameters for enabling an automated calculation of dosage from a detected post-exposure optical density of the radiation sensitive material. The method comprises the step of optically measuring the optical density of the layer of radiation sensitive material prior to exposure thereof to radiation. In addition, the coding on the dosimeter substrate is scanned to automatically determine the encoded mathematical parameters. The method further comprises the steps of exposing the radiation sensitive layer to radiation and optically measuring a post-exposure optical density of the layer of radiation sensitive material.

Abstract: This invention relates to a 0.5 to 7 wt. % solids hair fixative composition having superior moisture resistant hold and minimal tack duration which provides a stiff film on artificial or human hair and superior hair combability, which composition essentially contains a resin mixture of (a) a terpolymer derived from about 17 to about 30 wt. % N-vinyl pyrrolidone, from about 60 to about 80 wt. % N-vinyl caprolactam and from about 3 to about 6 wt. % di-C.sub.1 -C.sub.4 alkyl amino-C.sub.1 -C.sub.4 alkyl-acrylate or methacrylate having a number average molecular weight of between about 20,000 and about 200,000 and (b) a N-vinyl pyrrolidone/vinyl acetate copolymer having a number average molecular weight of between about 10,000 and about 100,000; combined in a weight ratio of 1.4-6:1 (a) to (b).

Abstract: A process of making a mixed salt of a polymer containing an anhydride, acid or ester side groups therein which comprises:(a) forming a reaction mixture of the polymer, mixed salt compounds and water, in a predetermined proportion, as a paste or slurry,(b) reacting and extruding the paste or slurry at a predetermined temperature to form the mixed salt of the polymer, and(c) drying the resultant reaction product.

Abstract: A water soluble preservative antimicrobial composition for addition to commercial use products at predetermined use levels to provide synergistic biocidal activity against a wide range of fungi and gram-negative and gram-positive bacteria, comprising an active liquid blend of(1) an admixture of(a) one or more methylol compounds selected from the group consisting of N-[1,3-bis (hydroxymethyl)-2,5-dioxo-4-imidazolidinyl]-N,N'-bis (hydroxymethyl) urea; 1,3-dimethylol-5,5-dimethyl hydantoin; sodium hydroxymethyl glycinate; 1,1-methylene bis[3-[3-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl]urea]; and glycine anhydride dimethylol; and(b) 3-iodo-2-propynylbutyl carbamate, in a weight ratio of (a):(b) of 100:1 to 2000:1, and(2) propylene glycol or 1,3-butylene glycol.

Abstract: A free-flowing, non-dusting water dispersible granule (WDG) of a water-insoluble, hydrophobic agriculturally active chemical having low friability and superior crush strength for delivery to a desired site as a stable, rainfast suspension in water, without foaming.

Abstract: A low volatile organic compounds hair spray microemulsion in the form of a stable, clear, single phase system in which the particles therein have a diameter of less than 1 micron, consisting essentially of, by weight,(a) an ethyl half-ester of a copolymer of maleic anhydride and an alkyl vinyl ether in an amount of less than 20%, optionally neutralized up to 20 mole %,(b) an ethoxylated glycerol fatty acid ester as the surfactant having a hydrophobic-lipophilic balance of 10-18, in an amount of at least 0.1%,(c) ethanol in an amount of 55% or less, and(d) water to 100%.

Abstract: Low VOC hair spray resin compositions containing homogeneous terpolymers of vinyl pyrrolidone, vinyl caprolactam and 3-(N-dimethylaminopropyl) methacrylamide are described. The hair spray compositions are made using a solution of the terpolymer which is clear and low in viscosity, and which provides a spray of relative small particle size. The hair spray compositions exhibit an effective high humidity curl retention property.

Abstract: What is described herein are homogeneous, aqueous, non-freezing seed coating compositions containing high loadings of a nutrient such as Mn(NO.sub.3).sub.2.6H.sub.2 O.

Abstract: A method of stabilizing an aqueous solution of an acid copolymer of maleic acid and a C.sub.1 -C.sub.5 alkyl vinyl ether against degradation in viscosity or molecular weight upon storage for an extended period of time in aqueous solution at ambient conditions, with a single stabilizing agent, which comprises forming the acid copolymer, preferably directly from a slurry of corresponding anhydride in an organic solvent by hydrolysis in water, and adding superoxide dismutase as the single stabilizing agent to the solution either before or after hydrolysis.

Abstract: A hair spray composition of 80% or less VOC includes a fixative which is the half-ester of a copolymer of maleic anhydride and methyl vinyl ether having advantageous physical and performance properties even at low fixative levels. The copolymer is made by polymerizing the monomers at a selected temperature in the presence of a predetermined amount of a polymerization initiator whose decomposition fragments are soluble in hydroalcoholic solutions containing high levels of water. The composition is clear and without precipitate formation, has a low weight average molecular weight and a narrow molecular weight distribution or polydispersity, affording a low solution viscosity. The composition also forms a spray pattern of small particle size, providing clear, hard fixative films with superior adhesion to the hair of the user, an advantageous high humidity curl retention (hold), and low tack and dry times, in both pump and aerosol products.

Abstract: This invention relates to a crosslinked N-vinyl lactam polymer in the form of a stable, homogenized flowable hydrogel having microparticles which can be passed through a screen of between about 40 and about 350 mesh size. The invention also concerns the process for the preparation of the homogenized gel and to its use as a hair and skin conditioner or as a carrier for a cosmetically or pharmaceutically active substance.

Abstract: Substantially homogeneous copolymers comprising 20-99% of vinyl pyrrolidone (VP) and 1-80% of N-3,3-dimethylaminopropyl methacrylamide, (DMAPMA), preferably 50-95% VP and 5-50% DMAPMA, and, most preferably, about 80:20, by weight, having a weight average molecular weight of about 200,000 to 1,500,000, as a clear, low viscosity aqueous solution of the homogeneous copolymer, at a 5-20% solids level, preferably about 10-15%, by weight of the solution, having a viscosity of about 5,000 to 80,000 cps, preferably about 10,000 to 70,000 cps. The solution obtained herein has lower viscosity and better clarity, and provides hair care products with enhanced curl retention (hold), when compared to non-homogeneous copolymers of the same composition, or related existing commercial products.