公开(公告)号：US10913189B2

公开(公告)日：2021-02-09

申请号：US15647087

申请日：2017-07-11

Applicant: OTRAJET INC.

Inventor： Fa-Shen Chen

IPC: B29C44/42 ,  B29C45/18 ,  B29C44/34 ,  B29C48/92 ,  B29B7/74 ,  B29B7/94 ,  B29C45/58 ,  B29C45/54 ,  B29C45/02 ,  B29C45/17

Abstract: A mechanism for mixing a supercritical fluid and a polymer raw material melt provided by the present invention includes a hot-melting unit, a mixing unit, and a supercritical fluid supplying unit. The mixing unit, independently of the hot-melting unit, receives a polymer melt from the hot-melting unit and a supercritical fluid from the supercritical fluid supplying unit, respectively, and mixes the polymer melt and the supercritical fluid into a homogenous single-phase solution. The hot-melting unit is provided with a pushing member for pushing a polymer raw material. The mixing unit is provided with a mixing rotor for mixing the polymer melt and the supercritical fluid.

公开(公告)号：US11806908B2

公开(公告)日：2023-11-07

申请号：US16831386

申请日：2020-03-26

Applicant: OTRAJET INC.

Inventor： Fa-Shen Chen ,  Liang-Hui Yeh

IPC: B29C48/00 ,  B29C48/255 ,  B29C48/92 ,  B29C44/34 ,  B29C48/285 ,  B29C44/42 ,  B29C45/18

CPC classification number: B29C48/0012 ,  B29C44/3446 ,  B29C48/2552 ,  B29C48/285 ,  B29C48/92 ,  B29C44/348 ,  B29C44/3423 ,  B29C44/42 ,  B29C45/1808

Abstract: An extruding system includes a melting unit configured to convey a polymeric material, a mixing unit configured to mix the polymeric material with a blowing agent to form a mixture, an injection unit configured to inject the mixture, a first flow control element disposed between the melting unit and the mixing unit, and a second flow control element disposed between the mixing unit and the injection unit. A method of extruding includes conveying a polymeric material from a melting unit to a mixing unit, conveying a blowing agent into the mixing unit, mixing the polymeric material with the blowing agent to form a mixture, conveying the mixture from the mixing unit to an injection unit, and discharging the mixture from the injection unit, wherein flow of the polymeric material is controlled by a first flow control element, and flow of the mixture is controlled by a second flow control element.