Patent ID: 6562142
Filing Date: 2003-05-13
Classification: B01J,B08B,C02F,C08K,C09D,C11D

Abstract:
A method for cleaning and treating a surface of a vehicle, said method comprising the steps of:(1) applying a cleaning solution to the surface of a vehicle wherein the cleaning solution comprises at least one water-soluble or water dispersible copolymer comprising, in the form of polymerized units (a) at least one monomer compound of general formula I: â€ƒin which: R1 is a hydrogen atom or a methyl or ethyl group; R2, R3, R4, R5 and R6, which are identical or different are linear or branched C1-C6; m is an integer from 0 to 10; n is an integer from 1 to 6; Z represents a â€”C (O)Oâ€” or â€”C (O) NHâ€” group or an oxygen atom; A represents a (CH2)p group, p being an integer from 1 to 6; B represents a linear or branched C2-C12 polymethylene chain optionally interrupted by one or more heteroatoms or heterogroups, and optionally substituted by one or more hydroxyl or amino groups; X, which are identical or different, represent counterions; (b) at least one hydrophilic monomer carrying a functional group with an acidic nature which is copolymerizable with (a); (c) optionally at least one monomer compound with ethylenic unsaturation with a neutral charge which is copolymerizabic with (a) and (b); (2) optionally agitating the cleaning solution while applying the cleaning solution to the surface of the vehicle to loosen dirt on the surface of the vehicle; (3) rinsing the surface of the vehicle to remove at least some of the cleaning solution; (4) at least partially removing any residue-forming substances remaining on the surface of the vehicle, if any residue-forming substances remain on the surface of the vehicle; (5) applying a treating composition to the surface of the vehicle, said treating composition comprising non-photoactive nanoparticles; (6) allowing the treating composition to dry on the surface of the vehicle before any water subsequently contacts the treated surface of the vehicle.