Process of drilling organic glasses
AssigneeEssilor International (Compagnie Generale d'Optique)
InventorsHaifeng Shan, Aref Jallouli, Rick Muisener
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Abstract
The present invention is drawn to a process of drilling organic glasses, comprising the following steps: (a) providing an organic glass substrate; (b) providing onto at least one surface of said organic glass substrate optionally via an adhesive layer selected from the group consisting of pressure sensitive adhesives and hot melt adhesives, a polymer film having an elastic modulus of equal to or less than 3 GPa in at least one direction and a E*h2 is equal to or more than 3.5 N in at least one direction, E and h being respectively the elastic modulus and the thickness of the thermoplastic polymer film; and (c) drilling a hole through the substrate and polymer film by means of a drill.
Claims17
A process of drilling organic glasses, comprising the following steps:
- (a) providing an organic glass substrate;
- (b) providing onto at least one surface of said organic glass substrate a polymer film having:
- an elastic modulus of equal to or less than 3 GPa in at least one direction and,
- a E*h2 is equal to or more than 3.5 N in at least one direction, E and h are respectively the elastic modulus and the thickness of the polymer film;
- and
- (c) drilling a hole through the substrate and polymer film by means of a drill.
Organic glass article comprising an organic glass substrate having a polymer film adhered onto at least one surface of said organic glass substrate;
- said polymer film having
- an elastic modulus of equal to or less than 3 GPa in at least one direction and
- a E*h2 is equal to or more than 3.5 N in at least one direction, E and h being respectively the elastic modulus and the thickness of the polymer film.
Dependencies are inferred from the claim text.