Title:
COPOLYMER, COMPOSITION, VARNISH, AND CURED PRODUCTS OF THESE
Document Type and Number:
WIPO Patent Application WO/2023/140262
Kind Code:
A1
Abstract:
Provided is an aromatic vinyl compound-aromatic polyene copolymer that satisfies all of conditions (1) to (4). (1) The number average molecular weight of the copolymer is at least 500 and less than 100,000. (2) The aromatic vinyl compound monomer is an aromatic vinyl compound having 8-20 carbon atoms, and the content of aromatic vinyl compound monomer units is more than 70 mass%. (3) The aromatic polyene is one or more types selected from among polyenes having 5-20 carbon atoms and having a plurality of vinyl groups and/or vinylene groups in the molecule, and the content of vinyl groups and/or vinylene groups derived from aromatic polyene units is at least 2 and less than 30, and preferably at least 3 and less than 30, per number average molecular weight. (4) The copolymer may contain one or more types selected from among olefin monomer units having 2-20 carbon atoms, and in a case where aromatic vinyl compound monomer units and aromatic polyene monomer units are present, the total amount of these and olefin monomer units is 100 mass%.
Inventors:
ARAI TORU (JP)
Application Number:
PCT/JP2023/001239
Publication Date:
July 27, 2023
Filing Date:
January 17, 2023
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C08F212/34; C08F257/02; C08K5/00; C08L9/00; C08L25/08; C08L71/12; H01B3/44; H01B5/14
Domestic Patent References:
| WO2018181842A1 | 2018-10-04 | |||
| WO2021112088A1 | 2021-06-10 | |||
| WO2022014599A1 | 2022-01-20 | |||
| WO2022054885A1 | 2022-03-17 |
Foreign References:
| JP2010150442A | 2010-07-08 | |||
| JP2001316431A | 2001-11-13 |
Other References:
DONG J. Y., HONG H., CHUNG T. C., WANG H. C., DATTA S.: "Synthesis of Linear Polyolefin Elastomers Containing Divinylbenzene Units and Applications in Cross-Linking, Functionalization, and Graft Reactions", MACROMOLECULES, AMERICAN CHEMICAL SOCIETY, US, vol. 36, no. 16, 1 August 2003 (2003-08-01), US , pages 6000 - 6009, XP093080101, ISSN: 0024-9297, DOI: 10.1021/ma021749s
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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