Antimicrobial medical glove
A formulation for manufacturing an antimicrobial article, said formulation comprising 25 to 75 weight parts of a PVC resin; 20 to 40 weight parts of a plasticizer; 10 to 30 weight parts of a solvent diluent; 0.001 to 1% by weight, and preferably 0.001 to 0.3% by weight of a singlet oxygen generating dye.
1 . A formulation for manufacturing an antimicrobial article, said formulation comprising:
25 to 75 weight parts of a PVC resin;
20 to 40 weight parts of a plasticizer;
10 to 30 weight parts of a non-polar solvent diluent; and
0.001 to 1% by weight
of a water soluble singlet oxygen generating dye.
2 . The formulation according to claim 1 , wherein the dye is selected from Methylene Blue, Toluidine Blue, Rose Bengal, zinc phthalocyanines, aluminium phthalocyanines, titanium phthalocyanines, and porphyrins.
3 . The formulation according to claim 1 , wherein the dye has both water and solvent solubility.
4 . The formulation according to claim 1 , wherein the dye has the following structural formula:
wherein:
M is selected from aluminium or zinc,
R″ is linked via an oxygen atom to a pyridine group at least 1 of which bears a cationic charge, and the remaining peripheral carbon atoms are an unsubstituted organic radical,
a+b=4
b=1 to 3.9
X=Cl − , Br − , I − , methanesulphonate, ethanesulphonate, formate, acetate or other inorganic or organic counter-ion or mixture thereof; and
wherein alkylation on the pyridine nitrogen is optionally branched C1-C8 alkyl.
5 . The formulation according to claim 4 , wherein the dye has the following formula:
6 . The formulation according to claim 4 , wherein the dye is tetrapyridyloxy zinc pthalocyanine with the following formula:
wherein the mean average total number of alkylated pyridines is 2 to 3.
7 . The formulation according to claim 6 , wherein the mean average total number of alkylated pyridines is 2.5 to 3.
8 . The formulation according to claim 1 , comprising from 0.001 to 0.3% by weight of a singlet oxygen generating dye.