Title:
MASTER BATCH FOR RUBBER MODIFICATION AND HYDROGENATED CONJUGATED DIENE POLYMER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2024/043312
Kind Code:
A1
Abstract:
The present invention provides a master batch for rubber modification, the master batch containing a rubber component and cellulose nanofibers in such a manner that the cellulose nanofibers are well dispersed in the rubber, and the master batch enabling the achievement of a rubber composition that exhibits excellent ozone resistance and mechanical characteristics after being cured; and a rubber composition which uses this master batch for rubber modification. One embodiment of the present invention provides a hydrogenated conjugated diene polymer composition which contains a hydrogenated conjugated diene polymer and cellulose nanofibers. With respect to the hydrogenated conjugated diene polymer in this embodiment, the hydrogenation degree of a structural unit derived from a conjugated diene compound is 30% by mole to 99% by mole. Another embodiment of the present invention provides a master batch for rubber modification, the master batch containing 100 parts by mass of a first rubber component that contains 50% by mass or more of a hydrogenated conjugated diene polymer, and 15 parts by mass to 100 parts by mass of cellulose nanofibers.
Inventors:
MATSUDA TAKAAKI (JP)
MOTOFUSA SHINICHI (JP)
OZAWA RYOSUKE (JP)
BAMBA ATSUSHI (JP)
MOTOFUSA SHINICHI (JP)
OZAWA RYOSUKE (JP)
BAMBA ATSUSHI (JP)
Application Number:
PCT/JP2023/030528
Publication Date:
February 29, 2024
Filing Date:
August 24, 2023
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08L15/00; C08J3/22; C08K5/05; C08L1/02; C08L7/00; C08L21/00; C08L71/02
Foreign References:
| JP2016204594A | 2016-12-08 | |||
| JP2019172858A | 2019-10-10 | |||
| JP2004143238A | 2004-05-20 | |||
| JP2020066699A | 2020-04-30 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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