Patent GB-387398-A (GB)
Title: Process for the manufacture of wetting, cleaning and emulsifying agents
Filed: 1931-08-12
Abstract: Fatty acids containing at least ten carbon atoms in the molecule are sulphonated, before, during or after esterification with monoaryl or monoaralkyl ethers of glycol, mono- or di-aryl or aralkyl ethers of glycerine or glycerine mono, aryl- or aralkyl ethers which contain besides one free hydroxy group, one halogen atom.  Similar products may be obtained by starting with esters of polyhydric alcohols completely esterified with fatty acids containing at least ten carbon atoms, and effecting esterification with the said glycol or glycerine ethers before, during or after sulphonation.  In an example, oleic acid after esterification with glycerine monoxylenol ether is sulphonated with sulphuric monohydrate.  Products are also obtained by (1) sulphonating oleic benzylglycol ester, (2) treating a mixture of olive oil and glycerine monoxylenol ether with sulphuric acid and (3) treating a mixture of coconut oil and glycerinemonoxylenol ether with sulphuric acid.  The products are stated to be wetting, cleansing and emulsifying agents which may be used in the textile, leather, paper and allied industries.  The Specification as open to inspection under Sect. 91 comprises also the production of sulphonated esters derived from any polyhydric alcohol containing alkyloxy, aryloxy, aralkyloxy or alkylcarboxylate residues.  Esters of higher fatty acids with polyhydric alcohols, containing a hydroxy group in the alcoholic residue may also be sulphonated and then treated with alkylating, arylating and aralkylating agents.  This subject-matter does not appear in the Specification as accepted.ALSO:Products stated to be emulsifying agents are obtained when fatty acids containing at least ten carbon atoms in the molecule are sulphonated, before, during or after esterification with monoaryl or monoaralkyl ethers of glycol, mono or di-aryl or aralkyl ethers of glycerine, or glycerine monoaryl or aralkyl ethers which contain besides one free hydroxy group, one halogen atom.  Similar products may be obtained by starting with esters of polyhydric alcohols completely esterified with fatty acids containing at least ten carbon atoms and effecting esterification with the said glycol or glycerine ethers before, during or after sulphonation.  In an example, oleic acid after esterification with glycerine monoxylenol ether is sulphonated with sulphuric monohydrate.  Products are also obtained by (1) sulphonating oleic benzylglycolester, (2) treating a mixture of olive oil and glycerinemonoxylenolether with sulphuric acid and (3) treating a mixture of coconut-oil and glycerinemonoxylenolether with sulphuric acid.  The Specification as open to inspection under Sect. 91 comprises also the production of sulphonated esters derived from any polyhydric alcohol containing alkyloxy, aryloxy, aralkyloxy or alkylcarboxylate residues.  Esters of higher fatty acids with polyhydric alcohols, containing a hydroxy group in the alcoholic residue may also be sulphonated and then treated with alkylating, arylating and aralkylating agents.  This subject-matter does not appear in the Specification as accepted.