Title:
NONLINEAR OPTICALLY ACTIVE COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2023/074622
Kind Code:
A1
Abstract:
[Problem] The present invention addresses the problem of providing: a nonlinear optically active copolymer which achieves both high glass transition temperature (Tg) and higher denseness of a nonlinear optical dye; and a nonlinear optical material which is obtained using this copolymer. [Solution] The present invention provides: a nonlinear optically active copolymer which comprises, in the same molecule thereof, at least a repeating unit A of an N-substituted maleimide skeleton represented by formula (1), and a repeating unit B represented by formula (2) and having a nonlinear optically active moiety; and an organic nonlinear optical material, a part of which is composed of this copolymer. [Chemical formula 1] (In the formula, R1 represents an alkyl group, an aralkyl group, a cycloalkyl group, an aliphatic crosslinked ring group or an aryl group; R2 represents a hydrogen atom or a methyl group; L1 represents a divalent hydrocarbon group which may contain an ether bond and/or an ester bond; L2 represents *-NHC(=O)O-, *-C(=O)NH- or *-C(=O)O- (wherein * represents a coupling end coupled to L1); and Z represents an atomic group which exhibits nonlinear optical activity.)
Inventors:
YOKOYAMA SHIYOSHI (JP)
KASHINO TSUBASA (JP)
KASHINO TSUBASA (JP)
Application Number:
PCT/JP2022/039523
Publication Date:
May 04, 2023
Filing Date:
October 24, 2022
Export Citation:
Assignee:
UNIV KYUSHU NAT UNIV CORP (JP)
NISSAN CHEMICAL CORP (JP)
NISSAN CHEMICAL CORP (JP)
International Classes:
C08F222/40; C08F8/30; C08F8/34; C08F220/10; G02F1/361
Domestic Patent References:
| WO2017159815A1 | 2017-09-21 |
Foreign References:
| JP2014130196A | 2014-07-10 |
Other References:
PARK, K.H. LIM, J.T. SONG, S. KWAK, M.G. LEE, C.J. KIM, N.: "Nonlinear optical polymers with novel benzoxazole chromophores - IV. Synthesis of maleimide-styrene and maleimide-methacrylate copolymers", REACTIVE AND FUNCTIONAL POLYMERS, ELSEVIER, AMSTERDAM, NL, vol. 40, no. 2, 15 May 1999 (1999-05-15), AMSTERDAM, NL , pages 169 - 175, XP004164107, ISSN: 1381-5148, DOI: 10.1016/S1381-5148(98)00022-4
Attorney, Agent or Firm:
HANABUSA PATENT & TRADEMARK OFFICE (JP)
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