Patent GB-922388-A (GB)
Title: Organic nitrogen base salts of vinyl sulphonic acid
Inventor: DISTLER HARRY
IPC: C07D213/20
Filed: 1961-01-09
Abstract: Aqueous polymer dispersions are prepared from salts of vinyl sulphonic acid with organic nitrogen bases.  The salts have the formula <FORM:0922388/IV(a)/1> where R1 is a monovalent hydrocarbon radical which may be substituted by halogen or a hydroxyl group or acylated hydroxyl group or may contain ether linkages; R2, R3, and R4 may be as R1 or may be hydrogen; R4 may be a hydrocarbon radical substituted by a group of formula <FORM:0922388/IV(a)/2> R1 and R2 may be polymethylene groups which connect the nitrogen atom of formula I with a group of formula <FORM:0922388/IV(a)/3> the substituents R5, R6 and R7 being hydrogen, hydrocarbon radicals or hydroxyalkyl radicals, and A(-) an anion, particularly that of vinyl sulphonic acid; R2 and R3 may form a 5 to 7 membered heterocyclic ring with the nitrogen atom of formula I; and R1, R2 and R3 may be components of a 5 or 6 membered ring containing the nitrogen atom of formula I.  In Examples A to E aqueous dispersions of copolymers are prepared from:-trimethyl-phenyl-ammonium vinyl sulphonate and n-butyl acrylate; trimethyl-cyclohexyl-ammonium vinyl sulphonate, vinyl acetate and n-butyl acrylate; methyl-triethanol-ammonium-vinyl sulphonate, vinyl propionate and n-butyl acrylate; a salt derived from vinyl sulphonic acid methyl ester and the reaction product of 1 mol. of diethylamine with 4 mols. of ethylene oxide, ethyl acrylate and vinylidene chloride; diethyl ammonium vinyl sulphonate, ethyl acrylate and acrylic acid; potassium persulphate is used to initiate the copolymerization.ALSO:The invention comprises salts of vinyl sulphonic acid with organic nitrogen bases.  The salts have the formula <FORM:0922388/IV(a)/1> where R1 is a monovalent hydrocarbon radical which may be substituted by halogen or a hydroxyl group or acylated hydroxyl group or may contain ether linkages; R2, R3, and R4 may be as R1 or may be hydrogen; R4 may be a hydrocarbon radical substituted by a group of formula <FORM:0922388/IV(a)/2> R1 and R2 may be polymethylene groups which connect the nitrogen atom of formula I with a group of formula <FORM:0922388/IV(a)/3> R5, R6 and R7 being hydrogen, hydrocarbon radicals or hydroxyalkyl radicals, and A(-) an anion, particularly that of vinyl sulphonic acid; R2 and R3 may form a 5 to 7 membered heterocyclic ring with the nitrogen atom of formula I; and R1, R2 and R3 may be components of a 5 or 6 membered ring containing the nitrogen atom of formula I.  The salts may be prepared by neutralizing the nitrogen base with vinyl sulphonic acids; or by reacting the nitrogen base with a vinyl sulphonic acid ester, the hydrocarbon radical of the alcoholic component of the ester being transferred to the nitrogen atom.  In examples there are prepared salts including N-methyl-8-hydroxyquinolinium vinyl sulphonate, ethyl-dimethylanilinium vinyl sulphonate, salts from ethyl and butyl esters of vinyl sulphonic acid and 4,41-bis-(dimethylamino-diphenyl)methane, trimethylcyclohexylammoniumvinyl sulphonate, salt of dimethyl palm kernel fatty amine, N-methyl-pyridinium vinyl sulphonate, N-methyl-quinolinium vinyl sulphonate, Nmethyl-vinylimidazolium vinyl sulphonate, Nmethyl-g -picolinium p  vinyl sulphonate, Nmethyl-quinaldinium vinyl sulphonate; salts of vinyl sulphonic acid and pyridine, crotylamine, 4-isopropyl-aniline, a -naphthylamine, 4-methoxy-N,N- dimethylaniline, 1-hydroxy2-amino-propane, piperazine, N-methyl pyrrole, pyrazole, thiazole, oxazole, morpholine, thiomorpholine, hexamethylene imine, diphenylamine, N- methylpyrrolidine, methyl oxazolidine, alkoxyamines, alkanolamines, reaction products of alkylene oxides with amines; and salts from simple amines and diamines.