The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2014
Filed:
Jul. 09, 2008
Kenji Inagawa, Hiroshima, JP;
Seiji Takamoto, Hiroshima, JP;
Hiroaki Shintani, Hiroshima, JP;
Shigeki Inoue, Hiroshima, JP;
Kenji Inagawa, Hiroshima, JP;
Seiji Takamoto, Hiroshima, JP;
Hiroaki Shintani, Hiroshima, JP;
Shigeki Inoue, Hiroshima, JP;
The Japan Steel Works, Ltd., Tokyo, JP;
Abstract
There is provided a melting kneading devolatilizing extruder in which the surface renewability of a molten raw material is improved. The melting kneading devolatilizing extruder of the invention includes at least one surface renewable screw segment each including a plurality of discs that are arrayed such that a phase angle E, which is a deviation angle between the discs around an axis of a screw, is 0°<E<90° within a surface renewal region, and the surface renewable screw segment includes a void portion between the discs so that the discs are arranged at intervals in a direction of the axis of the screw.