Patent ID: 6823649
Filing Date: 2004-11-30
Classification: B65B

Abstract:
A method of encapsulating a topical composition in a breakable capsule constituted by at least a first deformable film that is impermeable to said composition, the method comprising the steps of:a first step comprising deforming at least a portion of said first film elastically so as to constitute at least one blister; a second step comprising injecting said topical composition into said blister; a third step comprising applying a second film that is impermeable to said composition onto said first film so as to close said blister; and a fourth step comprising sealing together said second film and said first film around the periphery of said blister, said portion of said first film being suitable for shrinking after release of said capsule so as to cause the pressure inside the capsule to be greater than atmospheric pressure; wherein, while said capsule is being made, making at least one weak region at least in said blister, thus making the capsule suitable for being broken by exerting pressure on said capsule.