Method of manufacture of products bleaching agents, wetting agents, spumescents, dispersing and impregnating

摘要

Sulphonated boric acid esters of alcohols having at least eight carbon atoms, which may be used in the textile and leather industries as wetting, emulsifying, frothing, washing and permeating agents are prepared by heating the alcohols with boric acid to a temperature above 100 DEG C. while removing the liberated water by distillation and sulphonating the resulting esters with oleum, concentrated sulphuric acid or other water free sulphonating agent. Any unesterified alcohol is removed before the sulphonation is effected. In an example, sperm oil alcohols are esterified with boric acid by heating in vacuo and oleum is used for the sulphonation. With unsaturated alcohols the sulphonation may be stopped when sulphuric esters are obtained or the sulphonation may be continued so as to produce true sulphonic acids. The Specification as open to inspection under Sect. 91 comprises also additional examples in which cetyl alcohol, cholesterin-free wool fat alcohols, monochlorhexadecyl alcohol and olein alcohol are first esterified with boric acid to give the esters of meta or ortho boric acid, and are then sulphonated. Solubility may be improved by passing chlorine into the sulphonation mixture. The products may be used alone or mixed with waxes, fats, oils, cholesterin substances or fatty acid amides for removing the shine of artificial fabrics especially viscose. The use of the products in the paper and cosmetic industries, for the manufacture of spinning lubricants and as hair washes or bath salts is mentioned. This subject-matter does not appear in the Specification as accepted.ALSO:Sulphonated boric acid esters of alcohols having at least eight carbon atoms in the molecule are stated to be emulsifying and dispersing agents. The sulphuric esters obtained by sulphonating boric acid esters of the unsaturated higher alcohols form milky, stable emulsions with water. A sulphonated product derived from sperm oil alcohols and boric acid is mentioned. The Specification as open to inspection under Sect. 91 comprises also the use of the products for emulsifying fats, waxes and resins, and the manufacture of spinning lubricants. Products derived from cetyl and olein alcohol, monochlorhexadecyl alcohol and cholesterin-free wool fat alcohols are mentioned. This subject-matter does not appear in the Specification as accepted.