# US 8,540,904 B2 · Composition for ultraviolet absorbent substance and ultraviolet absorbent substance comprising same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,540,904 B2 - Document ID: US8540904B2 - Status: Granted - Kind: B2 - Application number: 13/522,790 - Filed: 2010-12-10 - Published: 2012-12-13 - Granted: 2013-09-24 - Earliest claimed: 2010-01-19 - Assignees: Sumitomo Seika Chemicals Co., Ltd. - Applicants: Yusaku Masuhara; Hidehiko Myoken; Katsumasa Yamamoto - Inventors: Yusaku Masuhara; Hidehiko Myoken; Katsumasa Yamamoto - Web page: https://patentgrep.com/patent/US8540904B2 ## CPC - C08K 5/46: with oxygen or nitrogen in the ring - C08K 5/3447: condensed with carbocyclic rings - C09D 5/32: Radiation-absorbing paints {(protection against X-, gamma- or corpuscular radiation G21F)} - C09D 7/48: Stabilisers against degradation by oxygen, light or heat - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) ## Abstract An ultraviolet absorbent substance includes a metal complex and a matrix, formed with at least one matrix material and/or polymerizable monomer as a precursor of a matrix material and containing said metal complex therein. One exemplary function of the ultraviolet absorbent substance is allowing visible light rays transmitted through satisfactorily while selectively blocking ultraviolet rays. ## Claims ### Claim 1 A composition for an ultraviolet absorbent substance which comprises at least one metal complex represented by formula (1) and at least one matrix material and/or polymerizable monomer as a precursor of a matrix material: wherein Y1, Y2, Y3 and Y4 are each, independently of one another, NH, NR5, an oxygen atom or a sulfur atom, and R5 of NR5 assigned to Y1, Y2, Y3 or Y4 is an alkyl group having 1 to 8 carbon atoms or an aryl group having 6 to 15 carbon atoms, which may have substituent(s), with proviso that Z1 and Z2 are each, independently of one another, a nitrogen atom or CR6; R6 of CR6 assigned to Z1 or Z2 represents an alkyl group having 1 to 8 carbon atoms, which may have substituent(s), when Y1, Y2, Y3 or Y4 are not all oxygen atoms, or an alkyl group having 2 to 8 carbon atoms, which may have substitute(s), when all of Y1, Y2, Y3 or Y4 are oxygen atoms; an aryl group having 6 to 15 carbon atoms, which may have substituent(s); a heteroaryl group having 4 to 12 carbon atoms, which may have substituent(s); a heteroaralkyl group having 5 to 12 carbon atoms, which may have substituent(s); or an aralkyl group having 7 to 15 carbon atoms, provided that when Z1 and Z2 are both represented by CR6, these occurrences of R6 of CR6 each represent a substituent which is independent of each other; and each of R1, R2, R3 and R4 is absent or, if present, one to four of 4 hydrogen atoms bound to 4 carbon atoms other than 2 carbon atoms shared with a five-membered ring among 6 carbon atoms of one benzene ring can be substituted, and all of substituents substituting for hydrogen atom(s) of the four benzene rings are each, independently of one another, an alkyl group having 1 to 8 carbon atoms, which may have substituent(s), a hydroxyl group, a carboxyl group, an alkoxy group having 1 to 4 carbon atoms, a halogeno group, an alkylaminosulfonyl group having 1 to 8 carbon atoms, which may have substituent(s), a morpholinosulfonyl group which may have substituent(s), a piperidinosulfonyl group which may have substituent(s), a pyrrolidinosulfonyl group which may have substituent(s), a thiomorpholinosulfonyl group which may have substituent(s) or a piperazinosulfonyl group which may have substituent(s), and M represents a metal atom. ### Claim 2 (depends on 1) The composition for an ultraviolet absorbent substance according to claim 1, wherein the metal atom M in formula (1) is a cobalt atom, a nickel atom, a copper atom or a zinc atom. ### Claim 3 (depends on 2) The composition for an ultraviolet absorbent substance according to claim 2, which is in a solution form wherein a solvent is included, or no solvent is included and the precursor of a matrix material also serves as a solvent. ### Claim 4 (depends on 2) The composition for an ultraviolet absorbent substance according to claim 2, which is in a dispersion liquid form wherein a dispersion medium is included, or no dispersion medium is included and the precursor of a matrix material also serves as a dispersion medium, and fine particles of the metal complex are dispersed. ### Claim 5 (depends on 2) An ultraviolet absorbent substance comprising the composition for an ultraviolet absorbent substance according to claim 2. ### Claim 6 (depends on 5) The ultraviolet absorbent substance according to claim 5, which is an ultraviolet absorbent substance as a laminate having on a substrate a film of a matrix material containing the metal complex. ### Claim 7 (depends on 5) The ultraviolet absorbent substance according to claim 5, which is an ultraviolet absorbent substance in a thin film form wherein the metal complex is contained in a film of a matrix material. ### Claim 8 (depends on 1) The composition for an ultraviolet absorbent substance according to claim 1, which is in a solution form wherein a solvent is included, or no solvent is included and the precursor of a matrix material also serves as a solvent. ### Claim 9 (depends on 8) An ultraviolet absorbent substance comprising the composition for an ultraviolet absorbent substance according to claim 8. ### Claim 10 (depends on 9) The ultraviolet absorbent substance according to claim 9, which is an ultraviolet absorbent substance as a laminate having on a substrate a film of a matrix material containing the metal complex. ### Claim 11 (depends on 9) The ultraviolet absorbent substance according to claim 9, which is an ultraviolet absorbent substance in a thin film form wherein the metal complex is contained in a film of a matrix material. ### Claim 12 (depends on 1) The composition for an ultraviolet absorbent substance according to claim 1, which is in a dispersion liquid form wherein a dispersion medium is included, or no dispersion medium is included and the precursor of a matrix material also serves as a dispersion medium, and fine particles of the metal complex are dispersed. ### Claim 13 (depends on 12) An ultraviolet absorbent substance comprising the composition for an ultraviolet absorbent substance according to claim 12. ### Claim 14 (depends on 13) The ultraviolet absorbent substance according to claim 13, which is an ultraviolet absorbent substance as a laminate having on a substrate a film of a matrix material containing the metal complex. ### Claim 15 (depends on 13) The ultraviolet absorbent substance according to claim 13, which is an ultraviolet absorbent substance in a thin film form wherein the metal complex is contained in a film of a matrix material. ### Claim 16 (depends on 1) An ultraviolet absorbent substance comprising the composition for an ultraviolet absorbent substance according to claim 1. ### Claim 17 (depends on 16) The ultraviolet absorbent substance according to claim 16, which is an ultraviolet absorbent substance as a laminate having on a substrate a film of a matrix material containing the metal complex. ### Claim 18 (depends on 16) The ultraviolet absorbent substance according to claim 16, which is an ultraviolet absorbent substance in a thin film form wherein the metal complex is contained in a film of a matrix material.