Abstract:
Prepare lithium carboxymethyl cellulose by treating sodium carboxymethyl cellulose with a weak acid to form an acid from of carboxymethyl cellulose and then treating the acid form of the carboxymethyl cellulose with lithium chloride.
Abstract:
A stabilizer composition for food and beverage products comprises (a) from 15 to 85 weight percent of a methylcellulose, (b) from 10 to 80 weight percent of a carboxymethyl cellulose, and (c) from 5 to 20 weight percent of a carrageenan, all percentages being based on the total weight of (a), (b) and (c). Food and beverage products which comprise this stabilizer composition have a good overrun and good organoleptic properties.
Abstract:
A composition designed for application to a mucosa comprises a tonicity-adjusting agent, a hydroxyalkyl methylcellulose and a liquid diluent, wherein the hydroxyalkyl methylcellulose has a DS of from 1.6 to 2.7 and an MS of from 0.40 to 1.30, wherein DS is the degree of substitution of methoxyl groups and MS is the molar substitution of hydroxyalkoxyl groups, and at least 55 weight percent of the liquid diluent is water. When the composition comprises additionally a physiologically active agent, the composition may be used for transmucosal administration of the physiologically active agent to an individual.
Abstract:
The palatability of a non-starch water-soluble polysaccharide (A) can be improved by at least partially coating the non-starch water-soluble polysaccharide (A) with a methylcellulose (B) having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, with the proviso that the non-starch water-soluble polysaccharide (A) is different from said methylcellulose (B).
Abstract:
An aqueous solution comprising (a) one or more mono-, di- and/or oligosaccharides and (b) a methylcellulose, wherein the methylcellulose has anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, is produced by i) mixing the methylcellulose with an aqueous liquid comprising one or more mono-, di- and/or oligosaccharides at a shear rate of at least 1000 s−1 or ii) mixing one or more mono-, di- and/or oligosaccharides with the methylcellulose and/or an aqueous liquid before, simultaneously with or after mixing the methylcellulose with the aqueous liquid at a shear rate of at least 1000 s−1.
Abstract:
The present application describes personal care compositions, comprising a surfactant and agglomerated cellulose derivative, provided that the cellulose derivative has been agglomerated with a sufficient amount of carboxymethylcellulose as binder, and provided that the personal care composition is substantially free of glyoxal.
Abstract:
A melt-extruded polymer composition comprising a) at least one cellulose ether, b) one or more active ingredients and c) one or more optional additives, wherein said at least one cellulose ether has an MS (hydroxyalkyl) of 0.05 to 0.55 and hydroxyl groups of anhydroglucose units are substituted with methyl groups such that [s23/s26−0.2*MS(hydroxyalkyl)] is 0.32 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 3-positions of the anhydroglucose unit are substituted with a methyl group and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 6-positions of the anhydroglucose unit are substituted with a methyl group.
Abstract:
An aqueous composition useful for producing capsules shells comprises a) at least one dispersed esterified cellulose ether comprising (i) groups of the formula —C(O)—R—COOA or (ii) a combination of aliphatic monovalent acyl groups and groups of the formula —C(O)—R—COOA, wherein R is a divalent aliphatic or aromatic hydrocarbon group and A is hydrogen or a cation, and b) from 0.05 to 20 percent of at least one salt of a fatty acid, based on the weight of the dispersed esterified cellulose ether, wherein the median particle size, d50, of the dispersed esterified cellulose ether particles is up to 7 micrometers, such median particle size (d50) being the size at which 50 mass percent of the particles have a smaller equivalent diameter and 50 mass percent have a larger equivalent diameter.
Abstract:
An aqueous composition comprising at least 10 weight percent of a dispersed esterified cellulose ether, based on the total weight of the aqueous composition, wherein the esterified cellulose ether comprises (i) groups of the formula —C(O)—R—COOH or (ii) a combination of aliphatic monovalent acyl groups and groups of the formula —C(O)—R—COOH, R being a divalent aliphatic or aromatic hydrocarbon group, and at least a part of the groups —C(O)—R—COOH are neutralized with an ammonium salt of carbonic acid, formic acid or acetic acid, and wherein d90 of the dispersed esterified cellulose ether particles is up to 10 micrometers, d90 being the diameter where 90 mass percent of the particles have a smaller equivalent diameter and the other 10 mass percent have a larger equivalent diameter, is useful for preparing coating dosage forms including tablets, capsules and others, or for the formation of capsules shells.
Abstract:
Provided is a composition in powder form comprising methylcellulose, wherein said composition has a powder x-ray diffraction spectrum at source x-ray wavelength of 1.789 Å showing a peak at a 2θ value between 14.5 and 16.5 degrees having intensity level Ipeak and a trough at a 2θ value between 16.51 and 20 degrees having intensity level Itrough, wherein a peak index PIndex is defined as PIndex=(Ipeak−Itrough)/Itrough and wherein said PIndex is 0.01 or greater.