Title:
METHOD FOR RECYCLING NITRILE RUBBER
Document Type and Number:
WIPO Patent Application WO/2020/138183
Kind Code:
A1
Abstract:
Provided is a method for recycling nitrile rubber from water-containing crumbs comprising crumb-like nitrile rubber using an extruder having a screw disposed to be rotationally drivable in the interior of a barrel in which at least a washing zone is formed, the method comprising supplying washing water to the washing zone at a water pressure of 0.2 MPa or higher while mixing the crumb-like nitrile rubber and the supplied washing water in the washing zone, thereby washing the crumb-like nitrile rubber.
Inventors:
ONO KENTARO (JP)
INOUE SAYAKA (JP)
INOUE SAYAKA (JP)
Application Number:
PCT/JP2019/050856
Publication Date:
July 02, 2020
Filing Date:
December 25, 2019
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C08J3/16; C08C1/14; C08C3/00
Foreign References:
| JPH10100145A | 1998-04-21 | |||
| JP2009179686A | 2009-08-13 | |||
| JP2004131654A | 2004-04-30 | |||
| JP2003160611A | 2003-06-03 | |||
| JP2011012142A | 2011-01-20 | |||
| JP2010528140A | 2010-08-19 | |||
| JP2011012142A | 2011-01-20 |
Other References:
See also references of EP 3904430A4
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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