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Title:
PROCESS FOR PRODUCING NEAR-INFRARED-ABSORBING COMPOUND, NEAR-INFRARED-ABSORBING COMPOSITION, NEAR-INFRARED CUT FILTER, SOLID PHOTOGRAPHING ELEMENT, AND PURIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/012250
Kind Code:
A1
Abstract:
Provided are a process for producing a near-infrared-absorbing compound which makes it possible to form a near-infrared cut filter having excellent heat resistance, a near-infrared-absorbing composition, a near-infrared cut filter, a solid photographing element, and a purification method. The process for producing a near-infrared-absorbing compound comprises a step in which a solution containing a coordination-site-containing polymer (A1) and/or a compound obtained by the reaction of the coordination-site-containing polymer (A1) with a metallic ingredient is purified using a porous separation material.

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Inventors:
HITOMI SEIICHI (JP)
TAKAHASHI HIDENORI (JP)
Application Number:
PCT/JP2014/069288
Publication Date:
January 29, 2015
Filing Date:
July 22, 2014
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/22; C08G65/40; C08G75/23; C09K3/00
Domestic Patent References:
WO2011071052A12011-06-16
Foreign References:
JP2007178915A2007-07-12
JP2004162169A2004-06-10
Attorney, Agent or Firm:
SIKs & Co. (JP)
Patent business corporation patent firm Sykes (JP)
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