Patent ID: 7820085

Claim:
A method comprising: providing a cavity defined by at least a portion of a mold and a closure member attached to the portion of the mold, the portion of the mold being oriented substantially vertically and having a top and a bottom, and a sealing material being positioned near the bottom and attached to the closure member; puncturing the sealing material and the closure member with an instrument near the bottom, the puncturing creating an opening in the sealing material; introducing a polymerizable composition into the cavity through the instrument; retracting the instrument from the cavity after the introducing, where the opening in the sealing material has a size, and the sealing material possesses a self-sealing property that reduces the size of the opening after the instrument is retracted; and prior to any polymerizing of the polymerizable composition, rotating the portion of the mold approximately 90 degrees about a horizontal axis passing through the portion of the mold.