Patent ID: 9693675
Date: 2017-07-04
CPC Classifications: A61B,B08B,C11D

Claim:
1. A composition consisting of: (i) a chelator in the form of ethylenediaminetetraacetic acid (EDTA) present in about 0.5 to about 2.0 wt. % of the composition; (ii) a buffer system in the form of potassium phosphate dibasic and sodium hydroxide present in a total amount of more than 10 to about 20 wt. % of the composition; (iii) a cleaner in the form of diethyl glycol monoethyl ether present in about 2.5 to about 10 wt. % of the composition; (iv) a solubilizer in the form of propylene glycol, present in about 2.5 to about 10 wt. % of the composition; and (v) a diluent in the form of water present in about 45 to about 80 wt. % of the composition, the composition having a pH of at least about 9.5.