Ultraviolet absorbing agent, ultraviolet absorbing composition, ultraviolet absorbing film, laminate, and novel compound
AssigneeFUJIFILM Corporation
InventorTakashi Katou
Life of this patent
Estimating the term…
Abstract
Provided are an ultraviolet absorbing agent represented by General Formula (1) and an application thereof. In General Formula (1), R11 represents a monovalent substituent. n is 1 or 2. W1 and W2 each independently represent a hydrogen atom, a cyano group, a carbamoyl group, a sulfamoyl group, a nitro group, an acyl group, an alkylsulfonyl group, an arylsulfonyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkyl group, an aryl group, or a heterocyclic group, where at least one of W1 or W2 represents a substituent having a Hammett's substituent constant σp value of 0.2 or more. W1 and W2 may be bonded to each other to form a ring.
Claims15
An ultraviolet absorbing agent represented by General Formula (2),
- wherein, in General Formula (2), R1 and R2 each independently represent a monovalent substituent,
- W1 and W2 each independently represent a hydrogen atom, a cyano group, a carbamoyl group, a sulfamoyl group, a nitro group, an acyl group, an alkylsulfonyl group, an arylsulfonyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkyl group, an aryl group, or a heterocyclic group, where at least one of W1 or W2 represents a substituent having a Hammett's substituent constant σp value of 0.2 or more, and W1 and W2 may be bonded to each other to form a ring, and
- at least one group of R1, R2, W1, or W2 has an acid group selected from the group consisting of a phosphoric acid group and a sulfonic acid group represented by SO3X, wherein X represents a hydrogen atom or a countercation of —SO3−.
An ultraviolet absorbing agent represented by General Formula (3),
- wherein, in General Formula (3), R1 and R2 each independently represent a monovalent substituent,
- R3 represents an alkyl group, an aryl group, or a heterocyclic group, and
- at least one group of R1, R2, or R3 has an acid group selected from the group consisting of a phosphoric acid group and a sulfonic acid group represented by SO3X, wherein X represents a hydrogen atom or a countercation of —SO3−.
A compound represented by General Formula (4),
- wherein, in General Formula (4), L1 and L2 each independently represent an alkylene group,
- X's each independently represent a hydrogen atom or a countercation of −SO3−, and
- W1 and W2 each independently represent a hydrogen atom, a cyano group, a carbamoyl group, a sulfamoyl group, a nitro group, an acyl group, an alkylsulfonyl group, an arylsulfonyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkyl group, an aryl group, or a heterocyclic group, where at least one of W1 or W2 represents a substituent having a Hammett's substituent constant σp value of 0.2 or more, and W1 and W2 may be bonded to each other to form a ring.
Dependencies are inferred from the claim text.