GB976528A - Treatment of synthetic products for rendering them antibacterial and antimycotic - Google Patents

Abstract

Synthetic resins and cellulose esters are rendered antibacterial and antimycotic by applying to or incorporating therein a compound of the general formula: <FORM:0976528/C3/1> in which X represents oxygen or sulphur, and R represents a phenyl group that may be substituted by at least one halogen atom or an alkyl or alkoxy group containing 1 to 4 carbon atoms or at least one -CF3, -OH, -NO2, -CN, -SCN, -SO3H, -SR1, -SO2R1, <FORM:0976528/C3/2> , -COOA, <FORM:0976528/C3/3> or <FORM:0976528/C3/4> group, in which R1 represents an alkyl group containing 1 to 4 carbon atoms, and A and A1 each represent a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms. Numerous resins are specified typical examples of which are polyvinylchloride and nylon. In an example a vinyl resin lacquer comprising PVC, dioctyl phthalate, methyl ethyl ketone ketone is rendered antimicrobial by mixing it with 3,31,4-tri-(trifluoromethyl)-41-chloro-N,N1 -diphenyl thio-urea in acetone solution. The synthetic resins and cellulose esters may be in the form of textile or non textile fibres, castings, stratified structures, coatings foils, emulsions and solutions. The active materials may be mixed with the monomers or precondensates and are advantageously dissolved in plasticizers e.g. the dialkyl adipates and phthalates, aliphatic sulphonic acid esters and triglycol acetate. Fibrous materials may be treated by spraying, immersion or absorption from an aqueous bath preferably containing surface active agents. The active compounds may be used in the form of pastes, powders, emulsions, suspensions solutions emulsion concentrates or wettable powders which may contain (i) anionic, non-ionic or cationic surface active agents (2) dyestuffs, pigments, matting agents, optical brightening agents, softening agents, antioxidants and (3) insecticides, acaricides or bactericides such as 3:4-dichlorobenzyl alcohol, cetyl pyridinium chloride, cetyltrimethyl-ammonium bromide, tetra-methyl thiuram-disulphide, salicylanilides dichloro-, dibromo-, tribromo- and tetrachlorosalicylanilides and 2:21-dihydroxy-3:5:6:31:51:61 -hexachloro-diphenyl methane.ALSO:Synthetic resins and cellulose esters are rendered antibacterial and antimycotic by applying to or incorporating therein a compound of the general formula <FORM:0976528/A5-A6/1> in which X represents oxygen or sulphur, and R represents a phenyl group that may be substituted by at least one halogen atom or an alkyl or alkoxy group containing 1 to 4 carbon atoms or at least one -CF3, -OH, -NO2, -CN, -SCN, -SO3H, -SR1, -SO2R1, <FORM:0976528/A5-A6/2> group, in which R1 represents an alkyl group containing 1 to 4 carbon atoms, and A and A1 each represent a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms. Numerous resins are specified typical examples of which are polyvinyl chloride and nylon. In an example a vinyl resin lacquer comprising PVC, dioctyl phthalate, methyl ethyl ketone ketone is rendered antimicrobial by mixing it with 3,31,4 - tri - (trifluoromethyl) - 41 - chloro N,N1-diphenyl thiourea in acetone solution. The synthetic resins and cellulose esters may be in the form of textile or non-textile fibres, castings, stratified structures, coatings, foils, emulsions and solutions. The active materials may be mixed with the monomers or precondensates and are advantageously dissolved in plasticizers, e.g. the dialkyl adipates and phthalates, aliphatic sulphonic acid esters and triglycol acetate. Fibrous materials may be treated by spraying, immersion or absorption from an aqueous bath preferably containing surface active agents. The active compounds may be used in the form of pastes, powders, emulsions, suspensions solutions emulsion concentrates or wettable powders which may contain (i) anionic, non-ionic or cationic surface active agents; (2) dyestuffs, pigments, matting agents, optical brightening agents, softening agents, antioxidants; and (3) insecticides, acaricides or bactericides such as 3 : 4-dichlorobenzyl alcohol, cetyl pyridinium chloride, cetyl-trimethyl-ammonium bromide, tetra-methyl thiuram-disulphide, salicylanilides, dichloro-, dibromo-, tribromo- and tetrachloro-salicylanilides and 2 : 21-dihydroxy - 3 : 5 : 6 : 31 : 51 : 61 - hexachloro-diphenyl methane.