Patent GB-746394-A (GB)
Title: Manufacture and use of emulsions containing etherified aminotriazine-formaldehyde condensates and being capable of oxidative drying in the presence of metallic driers
IPC: D06M15/423
Filed: 1953-11-16
Abstract: An emulsion capable of undergoing oxidative drying comprises a metallic drier and as binding agent a hardenable formaldehyde condensation product of an aminotriazine containing at least two -NH2 groups, in which condensation product at least two methylol groups per mol. of the aminotriazine are etherified by allyl or methallyl groups.  The emulsions may be of the water-in-oil or the oil-in-water type and are used for the production on textile materials, leather or paper of dressings, coatings and prints which are fast to washing and crocking (see Groups IV (c) and VIII).  Specified aminotriazines are melamine, N - phenylmelamine, benzoguanamine, acetoguanamine, formoguanamine, ammeline and 2 : 4-diamino-6-chloro-1 : 3 : 5-triazine.  The etherified condensate may also contain saturated alkyl ether groups obtained (a) by the partial re-etherification with allyl or methallyl alcohol of methylol aminotriazines containing saturated alkyl ether groups; (b) by by the partial re-etherification of methylol amino triazine allyl ethers with a monohydric or polyhydric alcohol, e.g. butanol, ethyleneglycol, octadecyl alcohol, myricil alcohol or incompletely esterified or etherified glycerine. Also some of the methylol groups may be esterified with saturated or unsaturated fatty acids or with resin acids. The etherified condensates may be subjected to a thermal pretreatment, or blown with a gas containing oxygen, or partially polymerized with vinyl acetate, styrene, acrylic or methacrylic acid esters or a drying oil. Additional emulsified binding agents may be used, e.g. nitrocellulose, acetyl cellulose, ethyl cellulose, polyvinyl acetate, polyvinyl acetals, polystyrene, phenol-, melamine- or ureaformaldehyde resins, linseed oil, dehydrated castor oil, soya bean oil, wood oil, alkyds modified with such oils or styrolized oils. Specified driers are the cobalt, iron, nickel, chromium, aluminium, calcium and zinc salts of naphthenic, resin, oleic, linoleic, wood oil and caprylic acids.  The emulsions may also contain pigments or dyestuffs, dressing and thickening agents, e.g. locust bean flour, cellulose esters and ethers or alginates, substances imparting hydrophobic properties, e.g. paraffin wax or other waxes softening agents, delustring agents and acid curing catalysts.  Emulsification may be effected in presence of emulsifying agents, e.g. polyglycol ethers of higher fatty acids, fatty amines or fatty alcohols, turkey red oil, sodium dinaphthylmethane disulphonate or the acetate of mono-oleyl-diethyl-ethylene diamine.  In examples, (a) hexamethylol melamine is reacted with allyl alcohol in presence of hydrochloric acid, the product neutralized and excess allyl alcohol and water distilled off.  (b) The product of example (a) is blown with air while heating at 135-140 DEG  C.  (c) The product of example (a) is heated with stearyl alcohol in presence of formic acid to effect partial reetherification.  (1), (2) and (4) A printing emulsion is made by introducing into a thickening agent containing locust bean flour (i) an aqueous pigment paste or dry pigment containing sodium dinaphthylmethane disulphonate and if desired sodium cellulose glycollate; (ii) a mixture of the product of example (h), the polyglycol ether of octadecyl alcohol and cobalt naphthenate; and (iii) water and/or toluene.  (3) A textile treating emulsion is made by adding a solution of the product of example (c) and cobalt naphthenate in toluene to a solution of the polyglycol ether of octadecyl alcohol and diluting the resulting paste with water.  (5) A pigment preparation containing copper phthalocyanine is distributed in a solution of the product of example (h) in solvent naphtha, cobalt naphthenate is added and then water run in to produce a water-in-oil type emulsion for use as a printing paste.ALSO:Dispersion dyeing baths or printing pastes contain a water-in-oil or oil-in-water type emulsion capable of undergoing oxidative drying which comprises a metallic drier and a hardenable aminotriazineformaldehyde condensate (see Group IV(a)) in which at least two methylol groups per mol of aminotriazine are etherified by allyl or methallyl groups.  Other methylol groups may be etherified by saturated alcohols or esterified by saturated or unsaturated fatty acids or resin acids.  When used for water-proofing, the ethers may be modified by higher fatty alcohols, higher fatty acids or fatty acid amides.  The condensates may be subjected to a thermal pretreatment, or blown with a gas containing oxygen, or partially polymerized with vinyl acetate, styrene, acrylic or methacrylic esters or a drying oil. The emulsion may also contain additional binding agents, e.g. nitro cellulose, acetyl cellulose, ethyl cellulose, polyvinyl acetate, polyvinyl acetals, polystyrene, phenol-, melamine- or urea-formaldehyde resins, linseed oil, dehydrated castor oil, soya bean oil, wood oil, alkyds modified with such oils or styrolized oils; dressing and thickening agents, e.g. locust bean flour, cellulose esters and ethers or alginates; agents imparting hydrophobic properties, e.g. paraffin wax or other waxes; delustering agents, acid curing catalysts; and ionic or non-ionic emulsifying agents.  In examples (1) A cotton fabric is printed with a printing paste which is an aqueous emulsion containing a blown allyl ether of hexamethylol melamine, the polyglycol ether of octadecyl alcohol, cobalt naphthenate, locust bean flour, and a pigment paste comprising sodium dinaphthylmethane disulphonate, if desired sodium cellulose glycollate and either the azo dyestuff from diazotized 2-nitro-4-methyl-1-aminobenzene and acetoacetyl-aminobenzene or copper phthalocyanine or the azo dyestuff from diazotized 2-methyl-4-chloro-1-aminobenzene and 1-(21-hydroxy-31-naphthoyl)-amino-2-methyl -4-chlorobenzene or dibromodimethoxy-dibenzanthrone; (2) A dyeing liquor is made by adding to a thickening agent comprising locust bean flour (a) a pigment paste containing sodium dinaphthylmethane disulphonate and either copper phthalocyanine or the azo-dyestuff from diazotized 1-amino-2-methyl-4-chlorobenzene and 2 - hydroxynaphthalene - 3-carboxylic acid-21-methyl-41-chloranilide, (b) a blown allyl ether of hexamethylol melamine, the polyglycol ether of octadecyl alcohol and cobalt naphthenate, (c) toluene and (d) water; (4) Chrome leather is dyed by applying thereto an emulsion similar to Example 2 but containing indigo as the dyestuff; (5) A printing paste suitable for printing unbleached cotton or regenerated cellulose comprises a blown allyl ether of hexamethylol melamine, solvent naphtha, cobalt naphthenate, copper phthalocyanine and water.