Patent ID: 8623253
Filing Date: 2014-01-07
Classification: B29C,C08G,C08L,C09D,H01B,H02G,Y10T

Abstract:
1. A method of repairing a substrate comprising: (a) obtaining a substrate having continuous or discontinuous layer of a low-melt polymer outside of and in contact with the substrate, or applying a continuous or discontinuous layer of a low-melt polymer to a substrate; (b) heating the layer of a low-melt polymer to a first temperature effective to melt the low-melt polymer to spread it into cracks or deformations that may exist or have formed in the substrate; and (c) heating the layer of a low-melt polymer to a second temperature effective to cross-link the low-melt polymer and to repair the cracks or deformations in the substrate; wherein the low-melt polymer comprises a poly(amic acid) (PAA) or a polyimide.