Coating processes – Restoring or repairing
Reexamination Certificate
2006-01-11
2009-02-17
Fletcher, III, William Phillip (Department: 1792)
Coating processes
Restoring or repairing
C427S508000, C427S553000
Reexamination Certificate
active
07491419
ABSTRACT:
A process for repairing a vehicle coating, comprising the following steps:I) applying a UV radiation coating composition onto a coated vehicle or vehicle part, having a blemished area on the coated surface to be repaired, wherein the coating composition comprisesA) at least one free-radically polymerizable oligomeric and/or polymeric binder containing olefinically unsaturated groups,B) optionally, at least one free-radically polymerizable monomeric reactive diluent containing one or more olefinically unsaturated groups,C) at least one photoinitiator,D) at least one metal compound of a metal salt containing the metal in the cation and/or anion of the compound, organometallic compounds, metal coordination compounds and mixtures thereof, wherein the metal is from groups 13-14 of the periodic system of elements and a transition metal, and is able to occur in at least 2 oxidation states other than zero andE) optionally, water, organic solvents, pigments, fillers and/or conventional coating additives, andII) irradiating the resultant coating with UV radiation.
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Copending U.S. Appl. No. 60/647,217, filed Jan. 26, 2005.
Search Report for International Appln. No. PCT/US2006/003000.
Chernyshov Dmitry
Loeffler Helmut
Stropp Juergen Peter
Wulf Martin
Deshmukh Sudhir G.
EI du Pont de Nemours & Company
Fletcher, III William Phillip
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