Back to results
US 12,631,810 B2Granted
Light-absorbing composition, light-absorbing film, method for producing light-absorbing film, and optical filter
AssigneeNippon Sheet Glass Co., Ltd.
InventorsYuichiro Kubo, Yoshihiro Takayanagi
Life of this patent
Estimating the term…
Abstract
A light-absorbing composition according to the present invention includes: an ultraviolet absorber having a hydroxy group and a carbonyl group in a molecule; and a metal component. At least a portion of the metal component is bonded to an organic oxy group.
Claims16
A light-absorbing composition comprising:
- an ultraviolet absorber including at least one selected from the group consisting of a benzophenone-based compound represented by the following formula (A1) and a salicylic-acid-based compound represented by the following formula (B)
- where at least one of R11, R12, R21, and R22 is a hydroxy group;
- and in the case where the R11, the R12, the R21, or the R22 is a functional group other than a hydroxy group, a plurality of the R11s, a plurality of the R12s, a plurality of the R21s, or a plurality of the R22s are optionally present and at least one of the R11, the R12, the R21, and the R22 is optionally absent,
- where R51 is optionally a hydroxy group, a carboxy group, a halogen-containing group, an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkoxy group having 1 to 12 carbon atoms;
- a plurality of the R51s are optionally present or the R51 is optionally absent;
- and R52 is a hydrogen atom, an aryl group, or a halogenated aryl group in which one or more hydrogen atoms are substituted by a halogen atom;
- and
- a metal component-compound including a metal component and an organic oxy group to which at least a portion of the metal component is bonded.
5 more elements
A light-absorbing film comprising:
- an ultraviolet absorber including at least one selected from the group consisting of a benzophenone-based compound represented by the following formula (A1) and a salicylic-acid-based compound represented by the following formula (B)
- where at least one of R11, R12, R21, and R22 is a hydroxy group;
- and in the case where the R11, the R12, the R21, or the R22 is a functional group other than a hydroxy group, a plurality of the R11s, a plurality of the R12s, a plurality of the R21s, or a plurality of the R22s are optionally present and at least one of the R11, the R12, the R21, and the R22 is optionally absent,
- where R51 is optionally a hydroxy group, a carboxy group, a halogen-containing group, an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkoxy group having 1 to 12 carbon atoms;
- a plurality of the R51s are optionally present or the R51 is optionally absent;
- and R52 is a hydrogen atom, an aryl group, or a halogenated aryl group in which one or more hydrogen atoms are substituted by a halogen atom;
- and
- a metal component-compound including a metal component and an organic oxy group to which at least a portion of the metal component is bonded.
5 more elements
Dependencies are inferred from the claim text.