Patent GB-395694-A (GB)
Title: Improvements in compositions containing cellulose derivatives
IPC: C08L1/08
Filed: 1932-01-15
Abstract: The solvent medium of a cellulosic composition comprises one or more organic liquids and water, the water forming at least 7 per cent of the total organic liquid, and a basic organic substance.  The basic organic substance may be an aliphatic, aromatic, or alicyclic amine. The amine may contain a substituent group, such as a sulphonic, phosphinic, or hydroxyl group, which renders it more soluble in water or in the organic liquid with which it is to be associated, than is the simple amine.  The number of amino groups present in the compound should be such as to overcome the acidity of any acidic groups present, or alternatively such groups may be present in the form of salts. The following amines may be used:--propylamine, butylamine, iso-propyl or iso-butylamine, amylamine, iso-amylamine, hexylamine, diethylamine and other secondary amines, trimethylamine and other tertiary amines, ethanolamines, diamino propanols, dioxypropylamines, oxy-amines obtained by reduction of cyanhydrin addition products of aldehydes, ketones, or alkylene oxides with hydrocyanic acid, or other substituted amines such as the alkali salt of taurin, aniline, ethyl aniline, oxyethyl aniline, alkali salts of sulphanilic acid, quinoline, cyclohexylamine, benzylamine, ethylene diamide of oleic, stearic, palmitic or other organic acid.  The basic substance is preferably soluble in the composition with which it is to be incorporated. If it is insoluble, it may be dissolved in a solvent miscible with the composition and the resulting solution is incorporated with the composition, this resulting in some cases in precipitation of the basic substance as a fine dispersion. Alternatively it may be emulsified with a liquid which is then incorporated with the cellulosic composition, or it may be ground into a fine powder or paste and then incorporated with the composition.  The presence of the basic substance reduces the corrosive action of the composition on the apparatus employed in the production therefrom of artificial filaments, films, sheets, and other materials, and in the application of lacquers and varnishes. The basic substance may be removed from the artificial filaments or other products or left in to reduce the tendency of the dyed products to fade.  The cellulose derivative may be cellulose acetate, cellulose nitrate, ethyl cellulose, or other ester or ether of cellulose.  Acetone or methyl ethyl ketone are suitable solvents and they may be mixed with non-solvents such as methyl or ethyl alcohol. Specification 357,152 is referred to.ALSO:The solvent medium of a cellulosic composition comprises one or more organic liquids and water, the water forming at least 7 per cent of the total organic liquid, and a basic organic substance.  The basic organic substance may be an aliphatic, aromatic, or alicyclic amine.  The amine may contain a substituent group, such as a sulphonic, phosphinic, or hydroxyl group, which renders it more soluble in water or in the organic liquid with which it is to be associated, than is the simple amine.  The number of amino groups present in the compound should be such as to overcome the acidity of any acidic groups present, or alternatively such groups may be present in the form of salts. The following amines may be used:--propylamine, butylamine, iso-propyl or isobutyl amine, amylamine, iso-amylamine, hexylamine, diethylamine and other secondary amines, trimethylamine, and other tertiary amines, ethanolamines, diamino propanols, dioxypropylamines, oxy-amines obtained by reduction of cyanhydrin addition products of aldehydes, ketones, or alkylene oxides with hydrocyanic acid, or other substituted amines such as the alkali salt of taurin, aniline, ethyl aniline, oxyethyl aniline, alkali salts of sulphanilic acid, quinoline, cyclohexylamine, benzylamine, ethylene diamide of oleic, stearic, palmitic or other organic acid.  The basic substance is preferably soluble in the composition with which it is to be incorporated. If it is insoluble, it may be dissolved in a solvent miscible with the composition and the resulting solution is incorporated with the composition, this resulting in some cases in precipitation of the basis substance as a fine dispersion. Alternatively it may be emulsified with a liquid which is then incorporated with the cellulosic composition, or it may be ground into a fine powder or paste and then incorporated with the composition.  The presence of the basic substance reduces the corrosive action of the composition on the apparatus employed in the production therefrom of films, sheets, and other materials, and in the application of lacquers and varnishes.  The basic substance may be removed from the artificial products or left in to reduce the tendency of the dyed products to fade.  The cellulose derivative may be cellulose acetate, cellulose nitrate, ethyl cellulose, or other ester or ether of cellulose.  Acetone or methyl ethyl ketone are suitable solvents and they may be mixed with non-solvents such as methyl or ethyl alcohol.  Specification 357,152 is referred to.ALSO:The solvent medium of a cellulosic compostion comprises one or more organic liquids and water, the water forming at least 7 per cent of the total organic liquid, and a basic organic substance. The basic organic substance may be an aliphatic, aromatic, or alicyclic amine.  The amine may contain a substituent group, such as a sulphonic, phosphinic, or hydroxyl group, which renders it more soluble in water or in the organic liquid with which it is to be associated than is the simple amine.  The number of amino groups present in the compound should be such as to overcome the acidity of any acidic groups present, or alternatively such groups may be present in the form of salts.  The following amines may be used: propylamine, butylamine, iso-propyl or iso-butyl amine, amylamine, iso-amylamine, hexylamine, diethylamine, and other secondary amines, trimethylamine and other tertiary amines, ethanolamines, diamino propanols, dioxypropylamines, oxy-amines obtained by reduction of cyanhydrin addition products of aldehydes, ketones, or alkylene oxides with hydrocyanic acid, or other substituted amines such as the alkali salt of taurin, aniline, ethyl aniline, oxyethyl aniline, alkali salts of sulphanilic acid, quinoline, cyclohexylamine, benzylamine, ethylene diamide of oleic, stearic, palmitic or other organic acid.  The basic substance is preferably soluble in the composition with which it is to be incorporated.  If it is insoluble, it may be dissolved in a solvent miscible with the composition and the resulting solution is incorporated with the composition, this resulting in some cases in precipitation of the basic substance as a fine dispersion.  Alternatively it may be emulsified with a liquid which is then incorporated with the cellulosic composition, or it may be ground into a fine powder or paste and then incorporated with the composition.  The presence of the basic substance reduces the corrosive action of the composition on the apparatus employed in the production therefrom of sheets and other materials.  The basic substance may be removed from the artificial products or left in to reduce the tendency of the dyed products to fade.  The cellulose derivative may be cellulose acetate, cellulose nitrate, ethyl cellulose, or other ester or ether of cellulose.  Acetone or methyl ethyl ketone are suitable solvents and they may be mixed with non-solvents such as methyl or ethyl alcohol.  Specification 357,152, [Group IV], is referred to.