Sekisui Kaseihin Kogyo Kabushiki Kaisha

Susumu Ishiwatari

Takaaki Hirai

Masahiro Tsubone

Kiyoshi Yoshioka

Nobuyuki Tsujiwaki

Masahiro Shindo

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.

Continuous manufacturing method and manufacturing apparatus of thermoplastic polyester resin foam

High molecular weight thermoplastic polyester resin foam

Method of manufacturing thermoplastic polyester resin foam by extrusion

Growing community of inventors

Nara, Japan

Susumu Ishiwatari