Japan, Sept. 16 -- SAGAMI CHEMICAL RESEARCH INSTITUTE has got intellectual property rights for 'PYRAN COMPOUND, METHOD FOR PRODUCING THE SAME, COMPOSITION FOR ELECTRO-OPTICS, ELECTRO-OPTICAL FILM, AND ELECTRO-OPTICAL ELEMENT.' Other related details are as follows:
Application Number: JP,2023-005425
Category (FI): C07D493/04,G02F1/061,501,C07D493/04,101@C
Stage: PROBLEM TO BE SOLVED: To provide a pyran compound having high heat resistance and a method for producing the same, and to provide a composition for electro-optics, an electro-optical film, and an electro-optical element containing the compound.SOLUTION: The pyran compound is represented by the following general formula (1) (where Ar represents a C6-18 aromatic hydrocarbon group or a C3-18 heteroaromatic group; the aromatic hydrocarbon group and the heteroaromatic group may be substituted with one or more substituents selected from the group consisting of a deuterium atom, C1-8 alkyl groups, C1-8 alkoxy groups and the like; the substituents may form a five- or six-membered ring together with two adjacent carbon atoms in the Ar molecule; A represents an electron-withdrawing double bond functional group; k and m each independently represent an integer of 1-3; q represents an integer of 1-3; and r represents an integer of 0-2).SELECTED DRAWING: None (Grant)
Filing Date: Jan. 17, 2023
Publication Date: July 29, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
