Antimicrobial polymer coating composition and antimicrobial polymer film
The present invention relates to an antimicrobial polymer coating composition comprising: a urethane acrylate-based oligomer or polymer having a molar ratio of a urethane functional group to a (meth)acrylate-based functional group of 1 to 10; a photosensitizer; and a photoinitiator; an antimicrobial polymer film comprising a cured product of the antimicrobial polymer coating composition; and an antimicrobial polymer film comprising a predetermined urethane acrylate-based polymer resin; and a photosensitizer dispersed in the polymer resin, wherein the polymer film has oxygen permeability of 5 to 100 cc/m 2 day.
1 . An antimicrobial polymer coating composition comprising: a urethane acrylate-based oligomer or polymer; a photosensitizer; and a photoinitiator,
wherein a molar ratio of a urethane functional group to a (meth)acrylate-based functional group in the urethane acrylate-based oligomer or polymer is in the range of 4 to 8,
wherein the photosensitizer includes a porphine compound or a porphyrin compound having 1 to 8 phenyl groups having a C 1-10 alkoxy group,
wherein an antimicrobial polymer film formed from the antimicrobial polymer coating composition has a singlet oxygen lifetime of 0.44 ms or more, as measured through a time-resolved phosphorescence laser spectroscopy system, and
wherein the antimicrobial polymer coating composition includes a monomer or an oligomer selected from the group consisting of trilene diisocyanate, xylene diisocyanate, trimethylolpropane polyethoxy tri(meth)acrylate, ethylene glycol dimethacrylate, an epoxide acrylate oligomer, an ether acrylate oligomer, a dendritic acrylate oligomer, and a mixture of two or more thereof.
2 . The antimicrobial polymer coating composition of claim 1 , wherein the urethane acrylate-based oligomer or polymer has a weight average molecular weight ranging from 200 g/mol to 50,000 g/mol.
3 . The antimicrobial polymer coating composition of claim 1 , wherein the photosensitizer has a concentration ranging from 0.01 to 5 parts by weight relative to 100 parts by weight of the urethane acrylate-based oligomer or polymer.
4 . An antimicrobial polymer film comprising a cured product of the antimicrobial polymer coating composition of claim 1 .
5 . An electronic product comprising the antimicrobial polymer film of claim 4 .
6 . The electronic product of claim 5 , wherein the electronic product is a humidifier, a refrigerator, an air washer, or an aquarium.
7 . An antimicrobial polymer coating composition comprising: a urethane acrylate-based oligomer or polymer; a photosensitizer; and a photoinitiator,
wherein a molar ratio of a urethane functional group to a (meth)acrylate-based functional group in the urethane acrylate-based oligomer or polymer is in the range of 4 to 8,
wherein the photosensitizer includes a porphine compound or a porphyrin compound having 1 to 8 phenyl groups having a C 1-10 alkoxy group,
wherein an antimicrobial polymer film formed from the antimicrobial polymer coating composition has a singlet oxygen lifetime of 0.44 ms or more, as measured through a time-resolved phosphorescence laser spectroscopy system, and
wherein the antimicrobial polymer coating composition includes a monomer or an oligomer selected from the group consisting of trilene diisocyanate, xylene diisocyanate, a dendritic acrylate oligomer, and a mixture of two or more thereof.
8 . The antimicrobial polymer coating composition of claim 7 , wherein the urethane acrylate-based oligomer or polymer has a weight average molecular weight ranging from 200 g/mol to 50,000 g/mol.
9 . The antimicrobial polymer coating composition of claim 7 , wherein the photosensitizer has a concentration ranging from 0.01 to 5 parts by weight relative to 100 parts by weight of the urethane acrylate-based oligomer or polymer.