JP2004091696A5 - - Google Patents

Claims (11)

An organic polyisocyanate, a high molecular weight hydrophilic polyol and / or polyamine and a compound having in the same molecule at least one active hydrogen-containing group and at least one tertiary amino group, by reaction obtained A composition comprising a hydrophilic polyurethane-based resin having a hydrophilic segment and a tertiary amino group and fine particle alumina, wherein the fine particle alumina is stably dispersed in the hydrophilic polyurethane resin solution. An alumina-dispersed hydrophilic polyurethane resin composition characterized by comprising:   2. The alumina-dispersed hydrophilic polyurethane resin composition according to claim 1, wherein the content of fine particle alumina is 5 to 95% by weight with respect to the hydrophilic polyurethane resin.   The alumina-dispersed hydrophilic polyurethane resin composition according to claim 1, wherein the fine particle alumina has an average particle diameter of 1 to 300 nm.   Fine particle alumina is contained by using a mixture of fine particle alumina and high molecular weight hydrophilic polyol or polyamine as at least part of high molecular weight hydrophilic polyol and polyamine when synthesizing the above hydrophilic polyurethane resin. The alumina-dispersed hydrophilic polyurethane resin composition according to claim 1. Alumina dispersion hydrophilic polyurethane resin composition according to claim 1, wherein the content of the parent aqueous segments of the hydrophilic polyurethane resin is 30 to 80 wt%.   The alumina-dispersed hydrophilic polyurethane-based resin composition according to claim 1, wherein the hydrophilic segment is a polyethylene oxide segment. An organic polyisocyanate, a high molecular weight hydrophilic polyol and / or polyamine and a compound having in the same molecule even without least the one active hydrogen-containing group and at least one tertiary amino group, is reaction In the method for producing a hydrophilic polyurethane resin composition comprising a hydrophilic polyurethane resin having a hydrophilic segment, a tertiary amino group, and fine particle alumina, the hydrophilic polyurethane resin is contained in the raw material component. A method for producing an alumina-dispersed hydrophilic polyurethane-based resin composition comprising using a mixture of fine particle alumina and a high molecular weight hydrophilic polyol or polyamine as at least a part of the high molecular weight hydrophilic polyol or polyamine .   The method for producing an alumina-dispersed hydrophilic polyurethane resin composition according to claim 7, wherein the mixture is obtained by removing a dispersion solvent of alumina sol from a mixture of high molecular weight hydrophilic polyol or polyamine and alumina sol.   The production of an alumina-dispersed hydrophilic polyurethane-based resin composition according to claim 8, wherein the content of the fine particle alumina in the mixture is an amount of 5 to 95% by weight with respect to the hydrophilic polyurethane resin to be produced. Method.   The method for producing an alumina-dispersed hydrophilic polyurethane resin composition according to claim 7, wherein the fine particle alumina has an average particle diameter of 1 to 300 nm. Method for producing an alumina dispersion hydrophilic polyurethane resin composition according to claim 7 the content of the parent aqueous segments of the hydrophilic polyurethane resin is 30 to 80 wt%.