ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,193, issued on Nov. 4.
"Method and kit for non-destructive in situ repair (relining) of deteriorated pipelines" was invented by Roberto Piovano (Castellamonte, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for relining a pipeline includes providing and using a composition that includes (a) a resin crosslinkable by action of a photoinitiator that is activated with actinic light, (b) a resin crosslinkable by action of a co-hardening compound; (c) a photo-initiator compound that can be photoactivated by irradiation with actinic light; and (d) a co-hardener compound added before use that is a semilatent co-hardener or a co-hardener at roo...