Abstract: An index filtration method is disclosed for filtering graft polyol dispersions. The method allows for the rapid filtration of large volumes of graft polyol dispersion in an economical manner. The process can be highly automated. The resulting filtered graft polyol dispersion mainly has particles of 25 microns or smaller and is stable under a variety of conditions for at least 9 weeks.

Abstract: An index filtration method is disclosed for filtering graft polyol dispersions. The method allows for the rapid filtration of large volumes of graft polyol dispersion in an economical manner. The process can be highly automated. The resulting filtered graft polyol dispersion mainly has particles of 25 microns or smaller and is stable under a variety of conditions for at least 9 weeks.

Abstract: The present invention is a method of producing dry, alkali metal or ammonium carboxylic acid salt particles. In accordance with the invention, a molten carboxylic acid is mixed with a solution of an alkali metal-containing or ammonium-containing alkaline compound and the carboxylic acid and alkaline compound are reacted to form the carboxylic acid salt. Water is then removed from the carboxylic acid salt to produce dry, carboxylic acid salt particles. The feed ratio of the molten carboxylic acid and the alkaline compound is controlled to neutralize the carboxylic acid in the process.

Abstract: The present invention relates to compositions useful for encapsulating fats, oils or solids, comprising gluten and polysaccharides that contains uronic acid residues.

Abstract: Method of making compositions comprising gluten and polysaccharides that contain uronic acid residues encapsulating fats, oils and solids comprising double emulsion techniques.

Abstract: The present invention relates to a method for increasing the flowability of spray dried vitamin powders having low vitamin concentrations and high concentrations of a maltodextrin carrier by coating said low concentration vitamin powders with hydrophobic silica.

Abstract: The present invention provides hygroscopic herbicide formulations in dry, flowable powder forms and associated methods of making the powders and tablets. The most preferred formulation uses an effective amount of a acifluorfen combined with a citrate sequestrant.

Abstract: The present invention provides hygroscopic plant growth regulator formulations in solid forms and associated methods of making the powders and tablets. The most preferred formulation uses an effective amount of an N,N-dimethyl-piperidinium salt such as mepiquat chloride.

Abstract: The present invention provides hygroscopic plant growth regulator formulations in solid forms comprising at least 95% active agent, and associated methods of making the powders and tablets. The most preferred formulation uses an effective amount of an N,N-dimethyl-piperidinium salt.

Abstract: The present invention provides hygroscopic plant growth regulator formulations in solid forms and associated methods of making the powders and tablets. The most preferred formulation uses an effective amount of an N,N-dimethyl-piperidinium salt.

Abstract: Disclosed is a solventless process for the manufacture of sulfophenylalkylsiloxane or sulfonaphthylalkylsiloxanes, wherein the reaction between chlorosulfonic acid and a phenylalkyltrichlorosilane or a naphthylalkyltrichlorosilane is conducted in a reactor containing a self-cleaning agitator to deliver the sulfophenylalkylsiloxane or sulfonaphthylalkylsiloxane in the form of a powder.

Abstract: A free-flowing granulated riboflavin product has granules comprised of from about 75 to about 99.5 weight percent riboflavin. The riboflavin product exhibits a flowability index of from about 75 to about 750.

Abstract: This invention relates to a process for preparing a sulfophenylalkylsiloxane or a sulfonaphthylalkylsiloxane having either of the following formulae: ##STR1## (a) adding an essentially equimolar ratio of chlorosulfonic acid to a phenylalkyltrichlorosilane or a naphthylalkyltrichlorosilane having either of the following formulae: ##STR2## wherein R of formulae I, II, III, and IV is individually hydrogen, halogen, or an alkyl radical having 1 to 4 carbon atoms; R.sub.1 is an alkylene radical having 2 to 5 carbon atoms; R.sub.2 is R or ##STR3## with the proviso that at least one R.sub.2 be ##STR4## R.sub.3 is --H or ##STR5## with the proviso that at least one R.sub.3 be ##STR6## R.sub.4 is R or --R.sub.1 SiCl.sub.3 with the proviso that at least one R.sub.4 be --R.sub.1 SiCl.sub.3 andn is at least 1,m is 1 or 2,in the presence of thionyl chloride at a temperature of from about 0.degree. to about 100.degree. C.

Abstract: A method for producing a granulated riboflavin product comprises making a specific mixture of riboflavin, binder and water, followed by homogenizing the mixture and thereafter spray-drying the homogenized mixture so that granules are produced. The mixture has a relatively high vitamin and binder content but is reduced to a relatively low viscosity (via homogenization) so that spray drying can be performed.

Abstract: The subject invention relates to a process for preparing lubricated water-soluble vitamin powders. The water-soluble vitamin powders are lubricated by combining them with a lubricant at a temperature sufficient to melt the lubricant. The powders are directly compressible into tablets and are resistant to demixing.

Abstract: The subject invention relates to a process for preparing acetaminophen powders by spray drying the acetaminophen in the presence of various excipients. Preferably a lubricant is incorporated into the acetaminophen powder during the spray drying process or after the spray drying process by passing the spray dried acetaminophen powder through a fluidized bed dryer which contains a lubricant.

Abstract: The subject invention relates to a process for preparing a powder containing a water-soluble vitamin which is directly compressible into a tablet prepared by spray drying (a) an aqueous slurry of a water-soluble vitamin and a binder; (b) preferably an adsorbent; and (c) a lubricant. Particularly useful water-soluble vitamins are ascorbic acid, sodium ascorbate, and calcium ascorbate. The unique feature of the process is that the lubricant is spray dried along with the other components.The invention also relates to powders prepared by this process. The powders are directly compressible into tablets and will not demix.

Abstract: The subject invention relates to a vitamin C powder prepared by (a) spray drying an aqueous slurry of ascorbic acid and binder in the presence of an absorbent in amounts such that the resulting powder will contain at least 90 percent by weight of ascorbic acid, no more than 9 percent by weight of binder, from 0.2 to 2 percent by weight of absorbent; and blending from 0.2 to 5 percent by weight of a lubricant into the powder prepared by step (a). Preferably microcrystalline cellulose and mixtures of microcrystalline cellulose and hydroxypropylmethycellulose are used as the binder.The resulting sugar and starch free vitamin C powder prepared by this process will be free flowing, have an ascorbic acid content of at least 90 percent by weight, be color stable under use conditions, will contain a lubricant, and is directly compressible into tablets which have acceptable hardness, friability, color stability, and disintegration times.

Abstract: Encapsulated vitamin powders coated with a hydrophobic silica have improved free-flowing properties making these powders more suitable for direct tableting preparation.