The calender rolls of the present invention are comprised of relatively thin-walled hollow shells which are supported at each end by shafts having bores which extend into the cavities formed in the rolls. Fittings located at the ends of the shafts are rotatable relative to them so that by tying the fittings...http://www.google.es/patents/US4734229?utm_source=gb-gplus-sharePatente US4734229 - Method for calendering temperature-critical thermoplastic material using a two-phase heat transfer medium
Method for calendering temperature-critical thermoplastic material using a ...