Patent ID: 7531049

Claim:
A method of use of a composition for removing a urethane product from a substrate, the method comprising: (a) providing a substrate having a urethane product disposed thereon; (b) disposing an effective amount of a composition comprising: i) a polar organic solvent having a dielectric constant greater than about 30; ii) a least one polyether comprising the molecular structure wherein R1 is an alkyl group having between about 9 and about 20 carbons, R2 is selected from the group consisting of hydrogen and methyl, and R3 is selected from the group consisting of hydrogen and alkyl, and (n) is between about 2 and about 10; iii) organic esters, wherein the esters are formed by hearing soybean oil in the presence of methanol and a catalyst; iv) silica; and v) water; (c) reacting the composition with the product for a period of time sufficient for the product to swell, decompose, and solubilize; and (d) removing the solubilized product from the substrate.