B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/1036, 25/48,
B29C 41/26 (2006.01) B22D 11/06 (2006.01) B28B 1/54 (2006.01)
Patent
CA 1318475
Abstract A method for the production of a unitary or laminated film or sheet of finely controlled thickness from a molten material which utilizes spaced, first and second parallel rolls rotating in opposite directions to form a kissing zone between the rolls is disclosed. The method comprises: contacting a molten material of predetermined thickness overflowing from a molten material receptacle onto the rotating first roll and cooling thereon to form an at least partially solidified first film of predetermined thickness, the first roll rotating around a lower circumferential axis than the second roll; positioning the second roll either 1) completely above the molten material in the receptacle or 2) partially immersed therein, the partially immersed second roll forming and cooling a second, at least partially solidified film thereon; pressing the first film on the first roll with either 1) the second roll surface or 2) the second film on the second roll, in the kissing zone to form a substantially solidified film product; and removing the solidified film product.
609354
Ribbon Technology Corporation
Riches Mckenzie & Herbert Llp
LandOfFree
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