초록 ▼

The present invention relates to thermoplastic compositions for making a liquid impermeable moisture vapor permeable layer by coating the composition onto a substrate. The thermoplastic compositions comprise preferred thermoplastic polymers and suitable hydrophilic plasticisers to adjust the viscosi

The present invention relates to thermoplastic compositions for making a liquid impermeable moisture vapor permeable layer by coating the composition onto a substrate. The thermoplastic compositions comprise preferred thermoplastic polymers and suitable hydrophilic plasticisers to adjust the viscosity of the composition at the process conditions. The layers made from the thermoplastic compositions of the present invention can find a variety of applications wherein moisture vapour permeability is desirable, such as within absorbent articles for example diapers, sanitary napkins, panty liners and incontinence products, and also protective bedding covers, protective clothing and the like.

대표청구항 ▼

The present invention relates to thermoplastic compositions for making a liquid impermeable moisture vapor permeable layer by coating the composition onto a substrate. The thermoplastic compositions comprise preferred thermoplastic polymers and suitable hydrophilic plasticisers to adjust the viscosi

The present invention relates to thermoplastic compositions for making a liquid impermeable moisture vapor permeable layer by coating the composition onto a substrate. The thermoplastic compositions comprise preferred thermoplastic polymers and suitable hydrophilic plasticisers to adjust the viscosity of the composition at the process conditions. The layers made from the thermoplastic compositions of the present invention can find a variety of applications wherein moisture vapour permeability is desirable, such as within absorbent articles for example diapers, sanitary napkins, panty liners and incontinence products, and also protective bedding covers, protective clothing and the like. , and acetals and bisulfites thereof; (d) a halohydrin; (e) a multifunctional epoxy compound; (f) a multifunctional carboxylic acid containing 2 to 12 carbon atoms, and methyl and ethyl esters, acid chlorides, and anhydrides derived therefrom; (g) an organic titanate; (h) a melamine resin; (i) a hydroxymethyl urea; (j) a multifunctional isocyanate; (k) a hydroxyalkylamide; and (l) mixtures thereof. 11. The resin of claim 1 wherein the resin is surface crosslinked with up to about 20,000 ppm of a surface crosslinking agent. 12. The resin of claim 1 wherein the resin is annealed at a temperature of about 65° C. to about 185° C. for about 20 minutes to about 16 hours. 13. The resin of claim 1 wherein the basic resin has a DN of 0% to 100%. 14. The resin of claim 1 wherein at least 50% of the monomer units comprising the basic resin are basic monomer units. 15. The resin of claim 1 wherein the acidic resin has a DN of 0% to 100%. 16. The resin of claim 1 wherein at least 50% of the monomer units comprising the acidic resin are acidic monomer units. 17. The resin of claim 1 wherein the basic resin comprises a poly(vinylamine), a poly(dialkyl-aminoalkyl (meth)acrylamide), a poly(vinylguanidine), a polyethylenimine, or a mixture thereof, and the acidic resin comprises poly(acrylic acid). 18. The resin of claim 1 wherein the acidic resin and/or basic resin contain a latent crosslinking agent selected from the group consisting of a compound having at least one polymerizable double bond and at least one functional group reactive with an acid group or an amino group, a compound having at least two functional groups reactive with an acid group or an amino group, a polyvalent metal compound capable of forming ionic crosslinkages with acid groups, and mixtures thereof. 19. The resin of claim 18 wherein the latent crosslinking agent for the acidic resin is selected from the group consisting of a polyhydroxy compound, a polyvalent metal salt, a quaternary ammonium compound, a multifunctional epoxy compound, an alkylene carbonate, a polyaziridine, a haloepoxy, a polyamine, a polyisocyanate, a hydroxyalkylamide, a hydroxyalkyl (meth)acrylate, an aminoalkyl (meth)acrylate, and mixtures thereof. 20. The resin of claim 19 wherein the latent crosslinking agent is selected from the group consisting of a glycol, a triol, a polyol, ethylene glycol, propylene glycol, 1,3-butylene glycol, glycerol, ethylene glycol diglycidyl ether, ethylene carbonate, propylene carbonate, 2,2-bishydroxymethyl butanol tris[3-(1-aziridine propionate]), epichlorohydrin, ethylenediamine, diethylenetriamine, tris(2-aminoethyl)amine, 1,3-diaminopropane, 1,6-diaminohexane, triethylenetetraamine, 1,4-diaminobutane, 1,5-diaminopentane, 2,4-toluene diisocyanate, bis[N,N-di(β-hydroxyethyl)]adipamide, bis[N,N-di(β-hydroxypropyl)]succinamide, bis[N,N-di(β-hydroxyethyl)]azelamide, bis[N,N-di(β-hydroxypropyl)]adipamide, bis[N-methyl-N-(β-hydroxyethyl)]oxamide, hydroxyethyl acrylate, hydroxypropyl methacrylate, aminoethyl acrylate, aminopropyl methacrylate, and mixtures thereof. 21. The ion exchange resin of claim 18 wherein the latent crosslinking agent for the basic resin is selected from the group consisting of a multifunctional aldehyde, a multifunctional (meth)acrylate, a halohydrin, a dihalide, a disulfonate ester, a multifunctional epoxide, a multifunctional ester, a multifunctional acid halide, a multifunctional carboxylic acid, a carboxylic acid anhydride, an organic titanate, a melamine resin, a hydroxyethyl urea, a multifunctional isocyanate, and mixtures thereof. 22. The ion exchange resin of claim 21 wherein the latent crosslinking agent is selected from the group consisting of ethylene glycol diglycidyl ether, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, 1,2-dibromoethane, 1,3-dibromopropane, 1,4-dibromobutane, 1,5-dibromopentane, 1,6-dibromohexane, 1,7-dibromoheptane, dimethyl malonate, diethyl succinate, dimethyl succinate, dime