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:
Sep. 30, 1997
Filed:
Feb. 29, 1996
Shuichi Hanada, Nagasaki, JP;
Yajuro Seike, Nagasaki, JP;
Toshikazu Shojima, Nagasaki, JP;
Takashi Moribe, Nagasaki, JP;
Haruhiro Takano, Hiratsuka, JP;
Ichiro Nishimura, Hiratsuka, JP;
Mitsubishi Jukogyo Kabushiki Kaisa, Tokyo, JP;
The Yokohama Rubber Co., Ltd, Tokyo, JP;
Abstract
A shearing action of rubber by a rotor wing has a relation to a wing perpendicular component P.sub.z of P (see FIG. 4), and the larger the value of P.sub.z, the larger the shearing action. An agitating action of rubber has a relation to a wing parallel component P.sub.x of P (see FIG. 4), and the larger the value of P.sub.x, the larger the agitating action. In order to maintain the shearing action and the agitating action of rubber at a high level, in an internal rubber mixer a helix angle of a long wing 2 is set in a range of not less than 30.degree. and less than 50.degree.. Further, an axial directional length L.sub.s of a short wing 3 is made larger than that (.delta.) of a cut-off portion of the long wing 2. A rubber flow f-1 is thereby prevented from passing straight through a rotor space portion. In this way, the internal rubber mixer is excellent in the shearing action of rubber, whereby enhances productivity and micro-dispersibility of a compounding agent, and is excellent in the agitating action of rubber, whereby it enhances macro-dispersibility of the compounding agent and low temperature mixing of rubber.