Abstract:
A process for making a free-flowing, compressible powder by spraying a selected amount of an aqueous solution of polyvinylpyrrolidone onto a fluid bed containing a predetermined admixture of starch and polyvinylpyrrolidone therein, and drying. An active-containing tablet then is provided by adding an active material, optionally with a lubricant, to such powder, and compressing the admixture into a commercially acceptable tablet.
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. Agrimer3 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
Abstract:
Low voc hair spray fixative compositions containing a fixative which is a tetramer of vinyl pyrrolidone, vinyl caprolactam, 3-(N-dimethylaminopropyl) methacrylamide and a C8-C18 alkyl acrylamide or acrylate, in predetermined compositional ranges of each monomer, and molecular weight, are described. The hair spray compositions herein are clear and low in viscosity, and form a spray of relatively small particle size which spreads evenly on the hair of the user as clear films which exhibit an effective high humidity curl retention property, good stiffness, and low tack and short drying times.
Abstract:
This invention relates to a stable wetting agent concentrate suitable for combination with an agrichemical which comprises a mixture of (a) an N-C8 to C18 alkyl lactam having from 4 to 6 carbon atoms in the heterocyclic ring and (b) a polyalkyleneoxide/polydimethyl siloxane copolymer, combined in a weight ratio of between about 10:90 and about 90:10 (a) to (b), and (c) between about 0.01 and about 25 wt.% based on total composition of an anionic surfactant, which composition exhibits synergistic wetting properties and allows for the use of lower effective dosages of the agrichemical due to induced cuticular and stomatical absorption by the plant species. The invention also pertains to the preparation of the wetting concentrate and its combination with an active component for use on a plant as a single phase composition.
Abstract:
This invention relates to a coprecipitated binder composition used for the compression of pharmaceutically and agriculturally active components to provide a non-friable, readily soluble or dispersible pill or tablet. The invention also relates to the process for preparing the binder and to its incorporation in a formulation with the active ingredient.
Abstract:
An 80 % VOC, single phase aerosol hair spray composition based on greater than 15 % hydrocarbons as propellant is described. The composition includes a predetermined small amount of dimethyl ether as cosolvent to assure solubilization of the hair fixative resin, alcohol, water and hydrocarbon components of the composition within a single phase.
Abstract:
A method of treating beverage which comprises contacting the beverage with polyvinyl polypyrrolidone and subsequently centrifuging the beverage to remove the polyvinyl polypyrrolidone.
Abstract:
An extrudible, wet paste composition of an agriculturally active chemical is provided herein which is used for forming water-dispersible or water-soluble granules thereof. These granules form stable suspensions or solutions in water which provide efficient delivery systems for such agricultural chemicals.
Abstract:
This invention relates to a glycol based anti-icing fluid containing between about 0.05 and about 5.0 wt.% of 0.2 to 1.0 % crosslinked poly(N-vinylpyrrolidone) or between about 0.05 and about 2 wt.% of 1.5 to 5 % crosslinked maleic anhydride/methyl vinyl ether copolymer and between about 0.01 and about 2 wt.% base to provide a pH of from about 6.5 to about 10.
Abstract:
This invention relates to a process for the preparation of clear, aqueous solutions of N-vinylpyrrolidone polymers in high purity by contacting a vinylpyrrolidone solution of 2,2'-azobis(2-methyl-butanenitrile) initiator with vinylpyrrolidone monomer or a water soluble polymerizable vinylpyrrolidone oligomer and simultaneously controlling the polymer product viscosity to a predetermined K-value of between about 15 to about 130 by adjustment of one or more of several process options.