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Title:
METHOD FOR PRODUCING ELASTOMER PELLETS
Document Type and Number:
WIPO Patent Application WO/2024/070596
Kind Code:
A1
Abstract:
The present invention provides a method for producing elastomer pellets, the method comprising a step for hot cutting an elastomer that is extruded from a die hole of a die, wherein the value of parameter A that is expressed by general formula (I) is 3.5 or more.　(I): A = 0.066 × X + 0.135 × Y (In general formula (I), X represents the shear rate (1/sec) of the elastomer in the die hole; Y represents the stress relaxation torque integral value (dNm∙sec) of the elastomer; and the stress relaxation torque integral value is obtained by integrating the torque values from 0.01 second to 10 seconds with respect to the torque curve that is obtained from a double logarithmic plot of stress relaxation times and torques, which are measured by performing a stress relaxation test of the elastomer at the temperature of 50°C and the strain rate of 13.95%.)

Inventors:
NISHIMORI TAKUMI (JP)
OHNO KEITA (JP)
SAKADA MASAHIDE (JP)
HAMA HISAKATSU (JP)
SHIMIZU TAICHI (JP)
ODA MITSUHIRO (JP)
Application Number:
PCT/JP2023/032887
Publication Date:
April 04, 2024
Filing Date:
September 08, 2023
Export Citation:
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Assignee:
ZS ELASTOMERS CO LTD (JP)
SUMITOMO CHEMICAL CO (JP)
ZEON CORP (JP)
International Classes:
C08J3/12; B29B9/06; C08F236/10
Domestic Patent References:
WO2016052112A12016-04-07
WO2018216550A12018-11-29
Foreign References:
JP2017177550A2017-10-05
JPH04300558A1992-10-23
JP2000043039A2000-02-15
JPH09208735A1997-08-12
US20100298503A12010-11-25
JP2002018842A2002-01-22
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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