Title:
MASTER BATCH FOR RUBBER MODIFICATION, AND LESS-BRANCHED CONJUGATED DIENE-BASED POLYMER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2024/043314
Kind Code:
A1
Abstract:
In one aspect of the present invention, provided is a less-branched conjugated diene-based polymer composition that contains cellulose nanofibers and a less-branched conjugated diene-based polymer which exhibits a contraction factor (g') of 0.72 or more as determined through GPC-light scattering measurement and in which the ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) determined by GPC is 1.5 or more. In another aspect of the present invention, provided is a master batch that is for rubber modification and that contains 15-100 parts by mass of cellulose nanofibers and 100 parts by mass of a first rubber component that includes 50 mass% or more of the less-branched conjugated diene-based polymer.
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Inventors:
MATSUDA TAKAAKI (JP)
MOTOFUSA SHINICHI (JP)
OZAWA RYOSUKE (JP)
BAMBA ATSUSHI (JP)
TARUTANI ATSUYOSHI (JP)
MOTOFUSA SHINICHI (JP)
OZAWA RYOSUKE (JP)
BAMBA ATSUSHI (JP)
TARUTANI ATSUYOSHI (JP)
Application Number:
PCT/JP2023/030556
Publication Date:
February 29, 2024
Filing Date:
August 24, 2023
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08L9/00; C08J3/22; C08K5/05; C08L1/02; C08L9/06; C08L21/00; C08L71/02
Domestic Patent References:
| WO2016009858A1 | 2016-01-21 |
Foreign References:
| JP2011252116A | 2011-12-15 | |||
| JP2017002148A | 2017-01-05 | |||
| JP2022000519A | 2022-01-04 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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