# US 2014/0190592 A1 · Chemical conversion treatment agent for surface treatment of metal substrate, and surface treatment method of metal substrate using same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190592 A1 - Document ID: US20140190592A1 - Status: Published application - Kind: A1 - Application number: 14/117,096 - Filed: 2012-05-09 - Published: 2014-07-10 - Earliest claimed: 2011-05-09 - Assignees: Chemetall GmbH - Inventors: Keita Uchikawa; Kiyoto Fuse - Web page: https://patentgrep.com/patent/US20140190592A1 ## CPC - C23C 22/34: containing fluorides or complex fluorides - C23C 2222/20: Use of solutions containing silanes - C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04) ## Abstract A chemical conversion treatment agent for surface treatment of a metal substrate, comprising: at least one metal element selected from the group consisting of zirconium, titanium, and hafnium; fluorine element; and a co-condensate of a silane coupling agent (A) and a silane coupling agent (B), wherein the silane coupling agent (A) is a silane coupling agent having a tri- or di-alkoxysilane group and an amino group, and the silane coupling agent (B) is a silane coupling agent represented by the following general formula (1): [in the formula, R represents an alkylene groups having 1 to 5 carbon atoms or the like, Z represents a cyclohexyl group optionally having an epoxy group or the like, a, b, and c each represent an integer of 0 to 3, provided that a sum of a, b, and c is 3, and a sum of a and b is 2 to 3, and x represents an integer of 1 to 3]. ## Claims ### Claim at position 1 -9. (canceled) ### Claim 10 A chemical conversion treatment agent for surface treatment of a metal substrate, comprising: at least one metal element selected from the group consisting of zirconium, titanium, and hafnium; fluorine element; and a co-condensate of a silane coupling agent (A) and a silane coupling agent (B), wherein the silane coupling agent (A) is a silane coupling agent having a tri- or di-alkoxysilane group and an amino group, and the silane coupling agent (B) is a silane coupling agent represented of formula (1): wherein R is selected from the group consisting of alkylene groups having 1 to 5 carbon atoms, alkyleneoxy groups having 1 to 5 carbon atoms, and an oxygen atom, Z is selected from the group consisting of cyclohexyl groups each optionally having at least one of an epoxy group and an amino group as a substituent and aromatic ring groups each optionally having at least one of a vinyl group, an epoxy group, and an amino group as a substituent, a, b, and c are each an integer of 0 to 3, provided that a sum of a, b, and c is 3, and a sum of a and b is 2 to 3, and x is an integer of 1 to 3. ### Claim 11 (depends on 10) The chemical conversion treatment agent according to claim 10, wherein the silane coupling agent (A) is selected from the group consisting of 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropylmethyldiethoxysilane, 3-aminopropylmethyldimethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane, N-(2-aminoethyl)-3-aminopropyltriethoxysilane and N-(2-aminoethyl)-3-aminopropyldimethoxysilane. ### Claim 12 (depends on 10) The chemical conversion treatment agent according to claim 10, wherein Z is a member selected from the group consisting of a 3,4-epoxycyclohexyl group, a phenyl group, a cyclohexyl group and a styryl group. ### Claim 13 (depends on 10) The chemical conversion treatment agent according to claim 10, further comprising at least one member selected from the group consisting of aluminum, magnesium, zinc, calcium, strontium, indium, tin, copper and silver. ### Claim 14 (depends on 10) The chemical conversion treatment agent according to claim 10, wherein the co-condensate of the silane coupling agent (A) and the silane coupling agent (B) is a co-condensate obtained by polymerizing a mixture of the silane coupling agent (A) and the silane coupling agent (B) in a mass ratio ((A):(B)) which is in a range from 1:9 to 18:1. ### Claim 15 (depends on 10) The chemical conversion treatment agent according to claim 10, wherein a content of the metal element is 50 to 1000 ppm in terms of the element. ### Claim 16 (depends on 10) The chemical conversion treatment agent according to claim 10, wherein a total content of the silane coupling agent (A) and the silane coupling agent (B), including the co-condensate, is 200 ppm or more in terms of solid content concentration. ### Claim 17 (depends on 10) The chemical conversion treatment agent according to claim 10, wherein the fluorine element is partially present as free fluorine ions in the chemical conversion treatment agent, and a content of the free fluorine ions in the chemical conversion treatment agent is 0.01 to 100 ppm. ### Claim 18 (depends on 10) A method for surface treatment of a metal substrate, comprising bringing the chemical conversion treatment agent according to claim 10 into contact with a surface of a metal substrate, to thereby form a chemical conversion coating film on the surface of the metal substrate. ### Claim 19 (depends on 11) The chemical conversion treatment agent according to claim 11, wherein Z is a member selected from the group consisting of a 3,4-epoxycyclohexyl group, a phenyl group, a cyclohexyl group and a styryl group. ### Claim 20 (depends on 11) The chemical conversion treatment agent according to claim 11, further comprising at least one member selected from the group consisting of aluminum, magnesium, zinc, calcium, strontium, indium, tin, copper and silver. ### Claim 21 (depends on 12) The chemical conversion treatment agent according to claim 12, further comprising at least one member selected from the group consisting of aluminum, magnesium, zinc, calcium, strontium, indium, tin, copper and silver. ### Claim 22 (depends on 11) The chemical conversion treatment agent according to claim 11, wherein the co-condensate of the silane coupling agent (A) and the silane coupling agent (B) is a co-condensate obtained by polymerizing a mixture of the silane coupling agent (A) and the silane coupling agent (B) in a mass ratio ((A):(B)) which is in a range from 1:9 to 18:1. ### Claim 23 (depends on 12) The chemical conversion treatment agent according to claim 12, wherein the co-condensate of the silane coupling agent (A) and the silane coupling agent (B) is a co-condensate obtained by polymerizing a mixture of the silane coupling agent (A) and the silane coupling agent (B) in a mass ratio ((A):(B)) which is in a range from 1:9 to 18:1. ### Claim 24 (depends on 13) The chemical conversion treatment agent according to claim 13, wherein the co-condensate of the silane coupling agent (A) and the silane coupling agent (B) is a co-condensate obtained by polymerizing a mixture of the silane coupling agent (A) and the silane coupling agent (B) in a mass ratio ((A):(B)) which is in a range from 1:9 to 18:1. ### Claim 25 (depends on 11) The chemical conversion treatment agent according to claim 11, wherein a content of the metal element is 50 to 1000 ppm in terms of the element. ### Claim 26 (depends on 12) The chemical conversion treatment agent according to claim 12, wherein a content of the metal element is 50 to 1000 ppm in terms of the element. ### Claim 27 (depends on 13) The chemical conversion treatment agent according to claim 13, wherein a content of the metal element is 50 to 1000 ppm in terms of the element. ### Claim 28 (depends on 14) The chemical conversion treatment agent according to claim 14, wherein a content of the metal element is 50 to 1000 ppm in terms of the element. ### Claim 29 (depends on 11) The chemical conversion treatment agent according to claim 11, wherein the fluorine element is partially present as free fluorine ions in the chemical conversion treatment agent, and a content of the free fluorine ions in the chemical conversion treatment agent is 0.01 to 100 ppm.