Patent ID: 6514294
Filing Date: 2003-02-04
Classification: D06L

Abstract:
A dry cleaning process comprising, in no particular order, the steps of:contacting a substrate with a solvent selected from the group consisting of a solvent which is a gas at standard temperature and pressure, a biodegradable functionalized hydrocarbon and a silicon comprising solvent; and contacting the substrate with an additive, the additive comprising a first portion which is solvent phobic and a second portion which is solvent philic; wherein the additive has the formula: â€ƒwherein each R10 and R11, is independently a hydrogen, C1-10 alkyl, halogen, nitride group, nitro group, sulfonate group, ester group, hydroxy, carboxy, alkoxy, aryl, or a moiety with a positive charge, with the proviso that at least one R10 or R11 is a moiety with a positive charge, and q is an integer from about 1 to about 15,000, and each R12 is independently a hydrogen or C1-10 alkyl and R13 is a moiety with a positive charge; wherein the moiety with a positive charge has the formula: â€ƒwherein each R14 is independently H, a carboxylic acid functionalized group or a C1-20 alkyl and Xâˆ’ is a counter anion selected from the group consisting of Clâˆ’, Flâˆ’, Brâˆ’, Iâˆ’ or SO4âˆ’; and Q is a divalent bridging radical and z is a C1-4 alkyl, and t is an integer from about 1-5; and allowing the second portion to impart a lubricious soft hand on the substrate, or to lubricate fiber surfaces of the substrate to reduce wrinkle formation, or both.