The lining of pipelines and passageways is effected by everting a flexible lining tube containing curable synthetic resin into and along the pipeline or passageway. The resin is of the latent type and requires the application of energy to initiate the cure, after which the cure continues. The cure is...http://www.google.fr/patents/US5634743?utm_source=gb-gplus-shareBrevet US5634743 - Lining of pipelines and passageways
