Title:
THIOL GROUP-CONTAINING POLYETHER POLYMER, EPOXY RESIN-CONTAINING COMPOSITION, AND CURING AGENT FOR EPOXY RESIN
Document Type and Number:
WIPO Patent Application WO/2024/053593
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a thiol group-containing polyether polymer which has a lower viscosity and superior workability compared to epoxy adhesives using conventional polymercaptan-based curing agents and with which the low viscosity of an epoxy adhesive can be maintained even when the amount of an additive is increased. The present invention is a thiol group-containing polyether polymer which contains a polyether moiety represented by general formula (1) and a structural unit represented by general formula (2) in a main chain and has a structural unit represented by general formula (3) at a terminal, wherein, in structural analysis by 13CNMR measurement, the ratio [-SH]/[-Sx-] of a peak area corresponding to a structural unit of -SH to a peak area corresponding to a structural unit of -Sx- is at least 7.0. In formula (1), R1 is a residue obtained by removing a hydrogen atom from a polyvalent amine or polyhydric alcohol having at most 10 carbon atoms, R2 is an alkylene group having 2-6 carbon atoms, n is an integer of 1-200, and m is an integer of 2-8. In formula (2), Sx represents one or at least two consecutive sulfur atoms, x is an integer of 1-5, and l is an integer of 0-10. In formula (3), l is an integer of 0-10.
Inventors:
ABE HIROMITSU (JP)
SEO MOTOHARU (JP)
NISHIMURA TOMOAKI (JP)
SEO MOTOHARU (JP)
NISHIMURA TOMOAKI (JP)
Application Number:
PCT/JP2023/032188
Publication Date:
March 14, 2024
Filing Date:
September 04, 2023
Export Citation:
Assignee:
TORAY FINECHEMICALS CO LTD (JP)
International Classes:
C08G75/02; C08L63/00
Foreign References:
| JPH08269203A | 1996-10-15 | |||
| JPH047331A | 1992-01-10 | |||
| JPH04363325A | 1992-12-16 | |||
| CN109880075A | 2019-06-14 |
Attorney, Agent or Firm:
FUKUOKA Mitsuru (JP)
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