Patent GB-362632-A (GB)
Title: Improvements in the manufacture and production of highquality wax-like substances
IPC: C10G73/00
Filed: 1930-11-15
Abstract: Fatty acids obtained from montan wax, e.g. by the process described in Specification 305,552, [Class 91, Oils &c.], are reduced, either as such or in the form of their methyl or ethyl esters, to alcohols, which are then esterified with non-aromatic monocarboxylic acids. Suitable acids are formic, acetic, lactic, butyric, crotonic, stearic, palmitic, linoleic, and ricinoleic, acids from montan wax, palm kernel oil, or wool fat, non-aromatic resinic acids such as colophony, or cycloaliphatic naphthenic acids, or mixtures of these acids.  Small quantities of esterification catalysts, e.g. sulphuric acid, may be added, especially when working with carboxylic acids of high molecular weight.  Other organic hydroxyl-containing substances, such as palmityl and butyl alcohols, glycols, glycerine, castor oil fatty acids, hydroxyketones, e.g. dihydroxy acetone, hydroxyaldehydes, e.g. salicyl or glycollic aldehydes, or mixtures thereof may be added to the montanol before the esterification. Excess of acids may be used in the esterification, the excess being converted into soaps by treatment with bases, such as alkali bases, e.g. ammonia or sodium hydroxide, base-metal bases, e.g. zinc oxide, alkaline earth metal bases, e.g. calcium hydroxide, or organic bases, e.g. triethanolamine.  The products may be mixed in any desired proportion with compatible organic adulterants, such as beeswax, Japan wax, purified ozokerite, paraffin wax, tallow, or cotton, olive sesamum or turpentine oils, or colophony, aliphatic alcohols such as butanol, mineral oil fractions, or products obtainable according to Specifications 296,145, 324,631, and 327,162, [all in Class 91, Oils &c.], or with perfumes or ethereal oils.  The products are suitable for the preparation of shoe creams, floor and boot polishes, agents for polishing lacquer coatings, and glazing papers.  They are easily miscible with turpentine or mineral oils.  To produce a good shining surface, it is preferable to carry out the esterification in the presence of alcohols of high molecular weight, such as cetyl, decyl, or myricyl alcohols, or to add such alcohols to the esterified, or partly esterified and partly saponified products.  The examples illustrate the above processes, and indicate that the esterification may be performed in an atmosphere of nitrogen, or while passing nitrogen through the reaction mass.  The preparation of the mixture of alcohols named "montanol" (a) by reduction of the methyl ester of oxidized montan wax by means of hydrogen in the presence of nickel, and (b) by hydrogenation of oxidized montan wax in the presence of metallic cobalt, is also described. Specification 356,731 also is referred to.ALSO:Fatty acids obtained from montan wax, e.g. by the process described in Specification 305,552, [Class 2 (iii), Dyes &c.], are reduced, either as such or in the form of their methyl or ethyl esters, to alcohols, which are then esterified with non-aromatic monocarboxylic acids.  Suitable acids are formic, acetic, lactic, butyric, crotonic, stearic, palmitic, linoleic, and ricinoleic, acids from montan wax, palm kernel oil, or wool fat, non-aromatic resinic acids such as colophony, or cycloaliphatic naphthenic acids, or mixtures of these acids.  Small quantities of esterification catalysts, e.g. sulphuric acid, may be added, especially when working with carboxylic acids of high molecular weight.  Other organic hydroxyl-containing substances, such as palmityl and butyl alcohols, glycols, glycerine, castor oil fatty acids, hydroxyketones, e.g. dihydroxy acetone, hydroxy-aldehydes, e.g. salicyl or glycollic aldehydes, or mixtures thereof may be added to the montanol before the esterification.  Excess of acids may be used in the esterification, the excess being converted into soaps by treatment with bases, such as alkali bases, e.g. ammonia or sodium hydroxide, base-metal bases, e.g. zinc oxide, alkaline-earth metal bases, e.g. calcium hydroxide, or organic bases, e.g. triethanolamine.  The products may be mixed in any desired proportion with compatible organic adulterants, such as beeswax, Japan wax, purified ozokerite, paraffin wax, tallow, or cotton, olive, sesamum or turpentine oils, or colophony, aliphatic alcohols such as butanol, mineral oil fractions, or products obtainable according to Specifications 296,145, [Class 91, Oils &c.], 324,631, and 327,162, [both in Class 2 (iii), Dyes &c.], or with perfumes or ethereal oils. The products are suitable for the preparation of shoe creams, floor and boot polishes, agents for polishing lacquer coatings, and glazing papers.  They are easily miscible with turpentine or mineral oils. To produce a good shining surface, it is preferable to carry out the esterification in the presence of alcohols of high molecular weight, such as cetyl, decyl or myricyl alcohols, or to add such alcohols to the esterified, or partly esterified and partly saponified products. The examples illustrate the above processes, and indicate that the esterification may be performed in an atmosphere of nitrogen, or while passing nitrogen through the reaction mass.  The preparations of the mixture of alcohols named "montanol" (a) by reduction of the methyl ester of oxidized montan wax by means of hydrogen in the presence of nickel, and (b) by hydrogenation of oxidized montan wax in the presence of metallic cobalt, are also described. Specification 356,731 also is referred to.