US 11,898,062 B2 · Method for repairing surface defect with a fast curing patch

Abstract

A method of repairing a surface defect with a patch is provided. A fibrous substrate is impregnated with a formulation that includes a polyester resin, a crosslinking agent, a solvent, and a particulate filler. The fibrous substrate is contacted with the surface defect. The formulation is exposed to actinic radiation to induce cure of the formulation to form the patch to repair the surface defect. A kit is also provided that includes a bottle containing the formulation. A sheet of fibrous support material is also provided that is adapted to receive the formulation therethrough. Instructions for repairing a surface defect by the aforementioned method are also provided as part of the kit. 3D printing of an article to fit in the surface defect is also disclosed.

Claims17

Dependent claims

A method of repairing a surface defect in a substrate with a patch comprising:

impregnating a fibrous support with an uncured formulation comprising:
a polyester resin, a crosslinking agent, a solvent, and a particulate filler, the uncured formulation having a viscosity sufficient to impregnate the fibrous support while also being retained on the fibrous support to form a matrix surrounding the fibrous support;
contacting the fibrous support with the surface defect;
placing an article into the surface defect to underlie the fibrous support prior to the contacting;
and
exposing the uncured formulation to actinic radiation to induce cure of the formulation to form the patch to repair the surface defect.

3 more elements

Dependencies are inferred from the claim text.

Method for repairing surface defect with a fast curing patch

Life of this patent

Method for repairing surface defect with a fast curing patch

Life of this patent

Abstract

Claims17