Title:
MODIFIED NATURAL RUBBER, RUBBER COMPOSITION USING SAME, AND METHOD FOR PRODUCING MODIFIED NATURAL RUBBER
Document Type and Number:
WIPO Patent Application WO/2020/105371
Kind Code:
A1
Abstract:
Provided are: a modified natural rubber having more favorable fuel economy and tensile strength than an unmodified natural rubber; a rubber composition using the same; and a method for producing a modified natural rubber. The modified natural rubber having a linking structure represented by general formula (C) is formed by bonding a polyisoprene having a structure represented by general formula (A) and/or general formula (B) to an amino compound having at least two primary amino groups in the structure thereof. In formulae (A) and (B), X represents a hydrogen atom or a methyl group, and P represents a polyisoprene unit, and P in each formula may be the same or different. In formula (C), W represents a residue except for the terminal amino group from the amino compound, Q represents at least one selected from the group consisting of general formulae (Q-1) to (Q-4), and m represents 2-4. In addition, in general formulae (Q-1) to (Q-4), *1 represents being bonded to a carbon atom of the polyisoprene unit, and *2 represents being bonded to a carbon atom of the residue represented by W.
Inventors:
NAKASHIMA DAIKI (JP)
PHINYOCHEEP PRANEE (TH)
PHINYOCHEEP PRANEE (TH)
Application Number:
PCT/JP2019/042156
Publication Date:
May 28, 2020
Filing Date:
October 28, 2019
Export Citation:
Assignee:
TOYO TIRE CORP (JP)
International Classes:
C08F8/30; C08K3/00; C08L15/00
Foreign References:
| JP2012051969A | 2012-03-15 | |||
| JP2012140512A | 2012-07-26 | |||
| JP2018123260A | 2018-08-09 | |||
| JP2011089066A | 2011-05-06 |
Attorney, Agent or Firm:
TSUTADA, Masato et al. (JP)
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