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Title:
METHOD FOR PRODUCING THERMOPLASTIC ELASTOMER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2014/030541
Kind Code:
A1
Abstract:
Provided is a method for producing a thermoplastic elastomer composition that involves using a twin-screw kneader to melt-knead a thermoplastic resin and an elastomer. The twin-screw kneader has at least two stock material inlets including a first stock material inlet, and a second stock material inlet that is provided to a position separated downstream by 15D-38D from the first stock material inlet, where D is the cylinder inner diameter of the twin-screw kneader. The elastomer is fed in in a divided manner from the first and second stock material inlets, the proportion of the elastomer that is fed in from the second stock material inlet being 10-60 vol% of the total amount of elastomer. The elastomer is melt-kneaded in a kneading zone the length of which in the cylinder axis direction of the twin-screw kneader is 0.5D-20D, and one or more of the kneading zones is provided between the first and second stock material inlets and to the downstream side of the second stock material inlet.

Inventors:
SATO SHUN (JP)
Application Number:
JP2013/071396
Publication Date:
February 27, 2014
Filing Date:
August 07, 2013
Export Citation:
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Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
C08J3/20; B60C5/14; C08L21/00; C08L23/08; C08L27/10; C08L67/00; C08L77/00; C08L101/00; F16L11/04
Foreign References:
JP2007177229A2007-07-12
JPH1171466A1999-03-16
JPH06240010A1994-08-30
JPH08311251A1996-11-26
JPH08311350A1996-11-26
JP2002194096A2002-07-10
JPH08510783A1996-11-12
JPH08259741A1996-10-08
JP2010132850A2010-06-17
Other References:
See also references of EP 2889322A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
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