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. 01, 2015
Filed:
Feb. 02, 2010
Hiroshi Shimizu, Ibaraki, JP;
Yongjin LI, Hangzhou, CN;
Yukio Yoshizawa, Nagaoka, JP;
Takayuki Takahashi, Niigata, JP;
Ken-ichi Toyoshima, Gosen, JP;
Hiroshi Shimizu, Ibaraki, JP;
Yongjin Li, Hangzhou, CN;
Yukio Yoshizawa, Nagaoka, JP;
Takayuki Takahashi, Niigata, JP;
Ken-ichi Toyoshima, Gosen, JP;
Abstract
A high-shear melt-kneader includes a high-shear unit () having an internal feedback-type screw () configured to apply high-shear stress to a melted resin, resin pressure sensors () for configured to detect a front portion resin pressure in the vicinity of an inlet of the internal feedback-type screw and a rear portion resin pressure in the vicinity of an outlet, and a control device configured to appropriately control a material supplying amount, a material temperature, a kneading time, and a screw rotation speed according to pressure values detected by the sensors. The control device controls the conditions such that waveforms with the lapse of time of the front and rear portion resin pressures are similar to each other and show variation to a steady state after formation of a predetermined peak value, and the front and rear portion resin pressures form a predetermined pressure difference with the lapse of time. According to the high-shear melt-kneader, it is possible to improve high-shear efficiency, increase precision of nano dispersion of a material, and stably and finely disperse/mix internal structures of immiscible polymer blend-based, polymer/filler-based and polymer blend/filler-based materials to a nano level.