Near-infrared-absorbing composition and optical material
AssigneeKureha Corporation
InventorsTsukasa Ikeda, Hiroki Katono, Masuhiro Syouji, Katsuichi Machida
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Abstract
A near infrared absorptive composition of the present invention contains phosphate compounds represented by Formula (8)-c and Formula (8)-d below; and copper ions. An optical material of the present invention is a material wherein the near infrared absorptive composition is mixed in a resin.
Claims7
A near infrared absorptive composition comprising a phosphate compound represented by Formula (1) below;
- where R indicates an aryl group at least one hydrogen atom of which is replaced by a halogen atom or a group having an aromatic ring, n is 1 or 2, and, in the case of n being 1, R's may be identical or different aryl groups;
- and
- copper ions;
- wherein said group having the aromatic ring is a phenyl group at least one hydrogen atom of which is replaced by a halogen atom, a C1–C10 alkyl group, or a C2–C20 group having at least one unsaturated bond.
A near infrared absorptive composition comprising a phosphate compound represented by Formula (1) below;
- where R indicates a substituted or unsubstituted naphthyl group or a substituted or unsubstituted anthryl group, n is 1 or 2, and, in the case of n being 1, R's may be identical or different groups;
- and
- copper ions.
A near infrared absorptive composition comprising a phosphate compound, said phosphate compound being represented by Formula (1) below;
- where R is an aryl group at least one hydrogen atom of which is replaced by a substituted or unsubstituted methacryloyl oxyalkyl group;
- and
- copper ions.
Dependencies are inferred from the claim text.