Patent ID: 7892387
Filing Date: 2011-02-22
Classification: B29C,B29D,B29K,B29L,H05B,Y10T

Abstract:
1. A process for applying under pressure a coated or uncoated film onto a main surface of a lens substrate comprising: (a) providing the coated or uncoated film; (b) providing the lens substrate; (c) forming between a face of the coated or uncoated film and a main surface of the lens substrate a layer of a heat activable adhesive; (d) applying a force on the coated or uncoated film to urge the coated or uncoated film against the lens substrate main surface, with the heat activable adhesive layer therebetween and to conform the coated or uncoated film to the shape of the lens substrate main surface; (e) while maintaining the applied force on the coated or uncoated film, heating the heat activable adhesive to promote adhesion between the coated or uncoated film and the lens substrate main surface; (f) stopping heating and releasing applied force; and (g) recovering the lens substrate with the coated or uncoated film adhered thereon; wherein, heating step (e) comprises applying a microwave energy to a microwave heatable material situated so that the heat activable adhesive layer is heated by conduction of the heat generated by the microwave heatable material, wherein the microwave heatable material is located between the coated or uncoated film and an inflatable membrane of an inflatable membrane apparatus, and further is in the form of a liquid in contact with the inflatable membrane which comes into contact with the coated or uncoated film during the process.