B - Operations – Transporting – 30 – B
Patent
B - Operations, Transporting
30
B
B30B 3/04 (2006.01) B29C 43/46 (2006.01) B29C 43/52 (2006.01) B29C 47/88 (2006.01) B29C 65/08 (2006.01) B30B 3/00 (2006.01) B29C 35/16 (2006.01) B29C 47/00 (2006.01)
Patent
CA 2165267
Disclosed is a pressure roll comprising a cylindrical core member having a center shaft, an intermediate layer surrounding the core member and formed from a flexible material, and an outermost layer surrounding the intermediate layer and formed from a high- thermal conductivity material having a thermal conductivity of not less than 0.03 cal/cm2.sec.°C. Also disclosed is a molding apparatus of a plastic sheet using the pressure roll. According to the pressure roll and the molding apparatus using the pressure roll, when a resin extruded sheet interposed between the pressure roll and a main cooling roll is pressed onto the main cooling roll, the outermost layer of the pressure roll is elastically deformed slightly to apply a surface pressure onto the resin extruded sheet S, while cooling the plastic sheet S. Accordingly, even if the pressure applied to the plastic sheet is increased, the plastic sheet S is not broken and the plastic sheet S can be efficiently cooled owing to the wide cooling area. Moreover, an extremely thin extruded sheet having prominently excellent surface condition can be prepared.
Nakata Yasuo
Nishida Hirotaka
Macrae & Co.
Taisei Kako Co. Ltd.
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