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Patent Searching and Data


Title:
EXTRUDER, AND METHOD ADAPTED TO PRODUCE MATERIAL FOR BIODEGRADABLE FOAMED MOLDING BY USING THE EXTRUDER
Document Type and Number:
WIPO Patent Application WO/2010/134208
Kind Code:
A1
Abstract:
An extruder capable of uniformly stirring and mixing even materials having different properties and extruding a product. An extruder is provided with an elongated cylinder controlled in temperature, and also with a pair of elongated screws arranged parallel to each other in the cylinder and rotating about the axes thereof in the same direction as each other.  Each screw is constituted by combining ball screws and kneading screws together such that the ball screws and the kneading screws are arranged alternately.  The ball screws convey a material fed to the cylinder from the base end side to the front end side of the cylinder, and the kneading screws stir and mix the conveyed material.

Inventors:
NAKAMURA ATSUSHI (JP)
TANAKA HIDEAKI (JP)
Application Number:
PCT/JP2009/059696
Publication Date:
November 25, 2010
Filing Date:
May 27, 2009
Export Citation:
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Assignee:
NISSEI COMPANY LTD (JP)
NAKAMURA ATSUSHI (JP)
TANAKA HIDEAKI (JP)
International Classes:
B29B7/46; B01F27/74; B29B7/82; B29B7/92; B29C48/405; B29C48/67; B29C48/92; C08J3/12; C08L29/04; B29K1/00; B29K29/00; B29K105/04
Foreign References:
JP2003073484A2003-03-12
JP2002210732A2002-07-30
JPH06271696A1994-09-27
JPH08246398A1996-09-24
JPH0939062A1997-02-10
JP2005035134A2005-02-10
JP2005199531A2005-07-28
Attorney, Agent or Firm:
NOGAWA, Shintaro (JP)
Shintaro Nogawa (JP)
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Claims: