Patent ID: 7699953
Filing Date: 2010-04-20
Classification: B32B,Y10T

Abstract:
1. A method for enveloping silicone gel with plastic films, comprising the steps in sequence of: a) providing a first plastic film with a first surface and a second plastic film with a second surface; b) performing a surface implement process to the first surface and the second surface to improve surface wetting capability of the first surface and the second surface; and c) locating the first plastic film and the second plastic film separately in a vacuum chamber, holding the first plastic film with the first surface facing upwards to receive silicone gel and setting the second plastic film on top of the first plastic film with the second surface facing downwards to cover the first plastic film, and applying the silicone gel then cover the second plastic film on the silicon gel and edge of the first plastic film, and sealing contact edges of the first plastic film and the second plastic film, so as to tightly envelope the silicone gel between the first plastic film and the second plastic film without generating any bubble and air and leak in the vacuum chamber.