Title:
MODIFIED VINYLAROMATIC COPOLYMER, PRODUCTION METHOD THEREFOR, MODIFIED CONJUGATED-DIENE COPOLYMER OBTAINED THEREFROM AND COMPOSITION THEREOF, CROSSLINKED RUBBER OBJECT, AND TIRE MEMBER
Document Type and Number:
WIPO Patent Application WO/2020/262371
Kind Code:
A1
Abstract:
Provided are: a modified vinylaromatic copolymer having reactivity and solubility which make the copolymer usable in producing copolymer rubbers; and a copolymer rubber material obtained from the modified vinylaromatic copolymer and having all of processability, strength, and homogeneity. This modified vinylaromatic copolymer is characterized by comprising structural units (a) derived from a divinylaromatic compound and structural units (b) derived from a monovinylaromatic compound, at least some of the structural units (a) being crosslinking structure units (a1), and by including an end modified with a modification group having at least one functional group selected from the group consisting of amino, hydroxyl, and alkoxysilyl groups.
Inventors:
KAWABE MASANAO (JP)
KURATOMI TADASHI (JP)
KURATOMI TADASHI (JP)
Application Number:
PCT/JP2020/024577
Publication Date:
December 30, 2020
Filing Date:
June 23, 2020
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
International Classes:
B60C1/00; C08F8/00; C08F8/42; C08F36/04; C08F212/00; C08G81/02; C08K3/013; C08L15/00; C08L53/02
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Other References:
JEAN FISHER ET AL., CHEM. EUR. J., vol. 4, 1998, pages 2008 - 2017
Attorney, Agent or Firm:
SASAKI Kazuya et al. (JP)
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