US 11,898,062 B2
Method for repairing surface defect with a fast curing patch
Mehdi Habibpour, Glenview, IL (US); Matt James Lertola, Glenview, IL (US); Carlton G. Seaboldt, Glenview, IL (US); and Grant Shouldice, Glenview, IL (US)
Assigned to Illinois Tool Works Inc., Glenview, IL (US)
Filed by Illinois Tool Works Inc., Glenview, IL (US)
Filed on Sep. 3, 2021, as Appl. No. 17/466,149.
Claims priority of provisional application 63/075,928, filed on Sep. 9, 2020.
Prior Publication US 2022/0073766 A1, Mar. 10, 2022
Int. Cl. C09D 7/40 (2018.01); C09D 167/00 (2006.01); C09D 5/00 (2006.01); C09D 7/61 (2018.01); B33Y 80/00 (2015.01); B29C 73/10 (2006.01); B29C 73/06 (2006.01); B29B 11/14 (2006.01); B29C 35/08 (2006.01)
CPC C09D 7/70 (2018.01) [B29B 11/14 (2013.01); B29C 73/06 (2013.01); B29C 73/10 (2013.01); B33Y 80/00 (2014.12); C09D 5/002 (2013.01); C09D 7/61 (2018.01); C09D 167/00 (2013.01); B29C 35/0805 (2013.01); B29C 2035/0827 (2013.01)] 17 Claims
OG exemplary drawing
 
17. A method of repairing a surface defect in a substrate with a patch comprising:
impregnating a fibrous support with a formulation comprising: a polyester resin, a crosslinking agent, a solvent, and a particulate filler;
contacting the fibrous support with the surface defect; and
exposing the formulation to actinic radiation to induce cure of the formulation to form the patch to repair the surface defect;
wherein the impregnating is done with a three dimensional printer.