Invention Grant
US08642806B2 Squarylium compound, method for producing the same and infrared absorbent
有权
方酸化合物,其制备方法和红外线吸收剂
- Patent Title: Squarylium compound, method for producing the same and infrared absorbent
- Patent Title (中): 方酸化合物,其制备方法和红外线吸收剂
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Application No.: US13072176Application Date: 2011-03-25
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Publication No.: US08642806B2Publication Date: 2014-02-04
- Inventor: Shunya Kato , Yoshihiro Jimbo
- Applicant: Shunya Kato , Yoshihiro Jimbo
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2010-079881 20100330
- Main IPC: C07F5/02
- IPC: C07F5/02

Abstract:
Provide is a compound having absorbability in an infrared region, excellent invisibility and robustness. The compound is a squarylium compound represented Formula (1): wherein, R1 and R2 represent an alkyl group, cycloalkyl group, aryl group, or heteroaryl group, which may be substituted by a substituent; R3 and R4 represent a hydrogen atom or alkyl group; X1 and X2 represent an oxygen atom or —NR5—, in which R5 represents a hydrogen atom or alkyl group; Y1, Y2, Y3 and Y4 represent a halogen atom, alkyl group, cycloalkyl group, aryl group, heteroaryl group, arylcarbonyloxy group, or alkylcarbonyloxy group; a plurality of Y1's, Y2's, Y3's, or Y4's may be bonded to form a ring structure, respectively; Y1 and Y2, or Y3 and Y4 may be bonded to form a ring structure; n1 and n4 represent an integer of 0 to 3; and n2 and n3 represent an integer of 0 to 2.
Public/Granted literature
- US20110245538A1 SQUARYLIUM COMPOUND, METHOD FOR PRODUCING THE SAME AND INFRARED ABSORBENT Public/Granted day:2011-10-06
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