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1. (WO2017153543) PRESS AND METHOD FOR MOLDING EXPANDED THERMOPLASTIC POLYMERS

Pub. No.:    WO/2017/153543    International Application No.:    PCT/EP2017/055596
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Fri Mar 10 00:59:59 CET 2017
IPC: B29C 44/44
B29C 44/58
A42C 2/00
B29L 31/48
B29K 101/12
B29K 105/04
Applicants: ALESSIOHITECH S.R.L.
Inventors: ALESSIO, Gianni Franco
Title: PRESS AND METHOD FOR MOLDING EXPANDED THERMOPLASTIC POLYMERS
Abstract:
A press (10, 100) for molding expanded thermoplastic polymers, comprising at least one portion (11, 12, 111, 112) comprising a fixed plane (14, 48, 114, 148) with a first chamber (42, 74, 142, 174) and a movable plane (16, 50, 116, 150) with a chamber (46, 78, 146, 178), the fixed plane (14, 48, 114, 148) and the movable plane (16, 50, 116, 150) comprising at least one male mold part (22a, 22b, 58a, 58b, 122a, 122b, 158a, 158b) and at least one female mold part (24a, 24b, 56a, 56b, 124a, 124b, 156a, 156b), which form at least one cavity upon closure; the fixed plane (14, 48, 148) of the at least one portion (11, 12, 112) comprises, in a second chamber (44, 76, 176) obtained inside the first chamber (42, 74, 174), a duct (38, 70, 170) for dispensing steam inside the second chamber (44, 76, 176), adapted to superheat the at least one male mold part (22a, 22b, 158a) and/or the at least one female mold part (56a, 56b, 156b), and a duct (36, 68, 168) for dispensing water inside the second chamber (44, 76, 176), adapted to cool the at least one male mold part (22a, 22b, 158a) and/or the at least one female mold part (56a, 56b, 156b), and a condensation discharge duct (40, 72, 172).