B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 44/20 (2006.01) B29B 13/00 (2006.01) B29B 17/00 (2006.01) B29B 17/04 (2006.01) B29C 44/50 (2006.01) B29C 47/10 (2006.01) B29C 47/76 (2006.01) C08L 67/00 (2006.01)
Patent
CA 2166170
A thermoplastic polyester resin is fed into a twin extruder, wherein a resin is heated for melting, thereby removing moisture in the resin by evacuating and sucking from a vent port thereof, injecting a foaming agent into the resin to which is pushed out as a foaming sheet and, after that, forming the foaming sheet which is divided into a forming body and a trimming loss, whereby the trimming loss is crushed to obtain crushed materials which are provided so as to put the materials into the twin extruder as collection materials and recycle them.
Hirai Takaaki
Ishiwatari Susumu
Shindo Masahiro
Tsubone Masahiro
Tsujiwaki Nobuyuki
Sekisui Kaseihin Kogyo Kabushiki Kaisha
Smart & Biggar
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