WO2022139332A1 - 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 - Google Patents
전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 Download PDFInfo
- Publication number
- WO2022139332A1 WO2022139332A1 PCT/KR2021/019211 KR2021019211W WO2022139332A1 WO 2022139332 A1 WO2022139332 A1 WO 2022139332A1 KR 2021019211 W KR2021019211 W KR 2021019211W WO 2022139332 A1 WO2022139332 A1 WO 2022139332A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unsubstituted
- substituted
- group
- electrical steel
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/011—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/2805—Compounds having only one group containing active hydrogen
- C08G18/288—Compounds containing at least one heteroatom other than oxygen or nitrogen
- C08G18/289—Compounds containing at least one heteroatom other than oxygen or nitrogen containing silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/724—Combination of aromatic polyisocyanates with (cyclo)aliphatic polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
- C08K5/5477—Silicon-containing compounds containing nitrogen containing nitrogen in a heterocyclic ring
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/748—Releasability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2170/00—Compositions for adhesives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/001—Presence of polyurethane in the barrier layer
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
Definitions
- One embodiment of the present disclosure relates to an electrical steel sheet adhesive coating composition, an electrical steel sheet laminate, and a manufacturing method thereof. Specifically, one embodiment of the present disclosure relates to an electrical steel sheet adhesive coating composition comprising a urethane resin, an electrical steel sheet laminate, and a manufacturing method thereof.
- Non-oriented electrical steel sheet is a steel sheet with uniform magnetic properties in all directions on a rolled sheet, and is widely used in motors, generator iron cores, electric motors, and small transformers.
- SRA stress relief annealing
- Insulation film is a film coated in the final manufacturing process of laminates such as motors, generator iron cores, electric motors, and small transformers, and generally requires electrical properties to suppress the occurrence of eddy currents.
- continuous punching processability, adhesion resistance, and surface adhesion are required.
- Continuous punching workability refers to the ability to suppress the wear of the mold when forming an iron core by stacking a plurality of pieces after punching into a predetermined shape.
- Adhesion resistance refers to the ability to not adhere between iron core steel sheets after the stress relief annealing process that removes the processing stress of the steel sheet and restores the magnetic properties.
- Such an insulating film can be manufactured as an electrical steel sheet laminate only by using a separate fastening method such as welding, clamping, and interlocking.
- an electrical steel sheet laminate in which a fusion layer capable of bonding (fastening) electrical steel sheets is formed, and a method for manufacturing the same do.
- an object of the present invention is to provide an electrical steel sheet adhesive coating composition in which the adhesive strength between electrical steel sheets is improved by controlling the components of the fusion layer formed between the electrical steel sheets.
- a bonding composition for an electrical steel sheet according to an embodiment of the present invention includes an adhesive resin and a bonding additive, the adhesive resin is polyurethane, and the bonding additive contains less than 5% by weight of amino silane (excluding 0% by weight). ring agent is included.
- the amino silane included in the coupling agent is represented by the following formula (1).
- R1 to R5 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C5 to C20 heteroaryl group, or an isocyanate group
- L1 to L4 are each independently a substituted or unsubstituted C1 to C10 alkylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C20 arylene group, or a substituted or unsubstituted and a cyclic C5 to C20 heteroarylene group
- n1 to n4 are each independently an integer from 0 to 10.
- the amino silane included in the coupling agent is represented by the following formula (2).
- R1 to R5 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C5 to C20 heteroaryl group, or an isocyanate group
- L4 is a substituted or unsubstituted C1 to C10 alkylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C20 arylene group, or a substituted or unsubstituted C5 to C20 It is a heteroarylene group
- n is an integer of any one of 1 to 10.
- the bonding additive further includes at least one from the group consisting of a wetting agent, a curing agent, and a curing catalyst.
- the polyurethane is formed by reacting an isocyanate monomer and a polyol, and the isocyanate monomer is at least one selected from the group consisting of an aromatic isocyanate monomer and an aliphatic isocyanate monomer.
- the aromatic isocyanate monomer is a monomer of Formula 3, Formula 4, or a combination thereof.
- R 1 to R 10 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C5 to C20 heteroaryl group, or an isocyanate group
- any one of R 1 to R 5 is an isocyanate
- any one of R 6 to R 10 is an isocyanate, except when R 3 and R 8 are isocyanate at the same time
- L is substituted or unsubstituted a substituted C1 to C10 alkylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C20 arylene group, or a substituted or unsubstituted C5 to C20 heteroarylene group
- n is 1 to 10 any one integer
- R 11 to R 16 are each independently hydrogen, deuterium, de
- the aliphatic diisocyanate monomer is a monomer represented by Formula 5.
- R is a substituted or unsubstituted C1 to C10 alkyl group, or a substituted or unsubstituted C3 to C12 cycloalkyl group.
- An electrical steel sheet includes an electrical steel sheet substrate; and a bonding coating layer positioned on the electrical steel sheet substrate, wherein the bonding coating layer includes an adhesive resin and a bonding additive, the adhesive resin is polyurethane, and the bonding additive contains less than 5% by weight of amino silane (0 weight %), including a coupling agent.
- a laminate according to an embodiment of the present invention includes a plurality of electrical steel plates; and a fusion layer positioned between the plurality of electrical steel sheets, wherein the fusion layer includes an adhesive resin and a bonding additive, the adhesive resin is polyurethane, and the bonding additive contains less than 5% by weight of aminosilane ( 0% by weight) of a coupling agent.
- the electrical steel sheet can be adhered without using conventional fastening methods such as welding, clamping, interlocking, and the like.
- an electrical steel sheet adhesive coating composition having excellent coating film adhesion, peeling properties and ATF resistance properties.
- first, second and third etc. are used to describe, but are not limited to, various parts, components, regions, layers and/or sections. These terms are used only to distinguish one part, component, region, layer or section from another part, component, region, layer or section. Accordingly, a first part, component, region, layer or section described below may be referred to as a second part, component, region, layer or section without departing from the scope of the present invention.
- substitution at least one hydrogen in the compound is a C1 to C30 alkyl group; C1 to C10 alkoxy group; silane group; an alkylsilane group; alkoxysilane group; It means that it is substituted with an ethyleneoxyl group.
- hetero refers to an atom selected from the group consisting of N, O, S and P, unless otherwise defined.
- the alkyl group may be a C1 to C20 alkyl group, specifically, a C1 to C6 lower alkyl group, a C7 to C10 intermediate alkyl group, or a C11 to C20 higher alkyl group.
- a C1 to C4 alkyl group means that there are 1 to 4 carbon atoms in the alkyl chain, which are methyl, ethyl, propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl and t-butyl. It indicates that it is selected from the group consisting of.
- Typical alkyl groups include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, hexyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl groups. .
- An object of the present invention is to provide a bonding composition for an electrical steel sheet.
- the adhesive coating composition among the substrates of the present invention is also a term used to indicate a bonding composition.
- the bonding composition of the present invention is a composition capable of bonding two or more surfaces of a steel sheet, and the use thereof is not particularly limited. For example, it may be a self-bonding composition for an electrical steel sheet for providing self-bonding of the electrical steel sheet.
- the bonding composition for an electrical steel sheet may include an adhesive resin and a bonding additive, the adhesive resin may be polyurethane, and the bonding additive may include a coupling agent containing aminosilane.
- the amino silane included in the coupling agent may be represented by Formula 1 below.
- R1 to R5 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C5 to C20 heteroaryl group, or is an isocyanate group
- L1 to L4 are each independently a substituted or unsubstituted C1 to C10 alkylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C20 arylene group, or a substituted or unsubstituted and a C5 to C20 heteroarylene group
- n1 to n4 may each independently be an integer of any one of 0 to 10.
- the amino silane included in the coupling agent may be represented by Formula 2 below.
- R1 to R5 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C5 to C20 heteroaryl group, or is an isocyanate group
- L4 is a substituted or unsubstituted C1 to C10 alkylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C20 arylene group, or a substituted or unsubstituted C5 to C20 hetero It is an arylene group
- n may be an integer of any one of 1 to 10.
- the amino silane may be 3-aminopropyl trimethoxysilane.
- the amino silane may be included in less than 5% by weight (excluding 0% by weight) based on the total weight of the adhesive resin. Specifically, the amino silane may be included in an amount of more than 0.01 wt % based on the total weight of the polymer resin. More specifically, the amino silane may be included in an amount of 0.05 to 3.0% by weight or 0.5 to 3.0% by weight based on the total weight of the adhesive resin.
- the content of amino silane in the bonding composition for electrical steel sheet is preferably controlled within the above range.
- the bonding composition may have an elongation of 300 to 600%. Specifically, the elongation may be 400 to 500%. If the amino silane coupling agent is not added, too little, or too much is added, the elongation may appear to be less than 300%. If the elongation is low, the adhesion between the base iron and the bonding layer may not be improved, and powder may be generated due to the adhesive layer during punching and mold contamination may occur. On the other hand, if the elongation is too large, there may be a problem in that the bonding layer is not cut together with the steel plate in the cutter during the slitting operation, but is elongated.
- the polyurethane which is the adhesive resin, is formed by reacting an isocyanate monomer and a polyol, and the isocyanate monomer may be at least one selected from the group consisting of an aromatic isocyanate monomer and an aliphatic isocyanate monomer.
- the aromatic diisocyanate monomer may be a monomer represented by the following Chemical Formula 3, Chemical Formula 4, or a combination thereof.
- R 1 to R 10 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C5 to C20 heteroaryl group, or an isocyanate group ego,
- R 1 to R 5 is an isocyanate
- any one of R 6 to R 10 is an isocyanate
- L is a substituted or unsubstituted C1 to C10 alkylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C20 arylene group, or a substituted or unsubstituted C5 to C20 heteroarylene group,
- n is an integer of any one of 1 to 10,
- R 11 To R 16 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C5 to C20 heteroaryl group, isocyanate a group or a substituted or unsubstituted C1 to C10 alkyl isocyanate group,
- At least two of R 11 to R 16 are isocyanate or substituted or unsubstituted C1 to C10 alkyl isocyanate.
- any one of R 1 to R 5 is an isocyanate
- any one of R 6 to R 10 is an isocyanate
- R 3 and R 8 are at the same time an isocyanate, except when R 1 and R
- 10 is an isocyanate at the same time may be further excluded.
- any one of R 1 to R 5 is isocyanate, any one of R 6 to R 10 is isocyanate, and any one of R 1 to R 5 and R 6 to R 10 is It is further excluded that it is an isocyanate at the same time symmetrically about L.
- the monomer represented by Formula 3 may be one represented by Formula 5 below.
- L is a substituted or unsubstituted C1 to C10 alkylene group, a substituted or unsubstituted C2 to C10 alkynylene group, a substituted or unsubstituted C6 to C20 arylene group, or a substituted or unsubstituted C5 to C20 hetero It may be an arylene group.
- L may be a methylene group.
- the monomer represented by the formula (4) may be one represented by the following formula (6).
- R 11 may be hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C5 to C20 heteroaryl group.
- the aromatic isocyanate monomer is 2,4-toluene diisocyanate, 2,6-toluene diisocyanate, p-phenylene diisocyanate, 2,2'-methylene diphenyl diisocyanate, 2,4'-methylene diisocyanate It may be at least one selected from the group consisting of phenyl diisocyanate, 4,4'-methylene diphenyl diisocyanate, and m-xylene diisocyanate.
- the aliphatic isocyanate monomer may be a monomer represented by the following formula (7).
- R is a substituted or unsubstituted C1 to C10 alkyl group, or a substituted or unsubstituted C3 to C12 cycloalkyl group.
- the aliphatic diisocyanate monomer is hexamethylene diisocyanate (HDI), 1,4-cyclohexane diisocyanate, 4,4'-dicyclohexylmethane diisocyanate, isophorone diisocyanate, and hydrogenated xylene. It may be at least one selected from the group consisting of diisocyanate (Hydrogenated Xylene Diisocyanate).
- the polyol may be a polyol of Formula 8.
- R′ may be a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C5 to C20 heteroaryl group.
- the polyol may have a number average molecular weight of 400 to 1000 g/mol. Also, the polyol may be poly(propylene glycol).
- the content of the polyurethane resin may be 98% by weight or more based on the total weight of the bonding composition for electrical steel sheet.
- the bonding composition for electrical steel sheet according to an embodiment of the present disclosure minimizes the content of bonding additives other than the resin component contained in the composition and maximizes the resin component content, thereby exhibiting excellent steel sheet adhesion.
- the bonding additive included in the bonding composition for electrical steel sheet may further include other components that can be used in the bonding composition in addition to the coupling agent.
- the bonding additive may further include a wetting agent, a curing agent, and a curing catalyst in addition to the coupling agent.
- the wetting agent may include a silicone-based wetting agent.
- a silicone-based wetting additive may be polyether-modified polydimethylsiloxane.
- the wetting agent may be added to the bonding composition for an electrical steel sheet in order to strengthen the interfacial adhesion between the electrical steel sheet and the fusion layer.
- the curing agent may include an aliphatic amine-based, aromatic amine-based, amino-amine-based, or imidazole-based curing agent. More specifically, a dicyandiamide-based curing agent may be included.
- the curing catalyst may include an imidazole-based curing catalyst.
- the bonding composition for an electrical steel sheet according to an embodiment of the present disclosure may further include 0.50 to 2.50 parts by weight of a curing agent based on 100 parts by weight of the adhesive resin.
- the curing agent may be further included in an amount of 0.90 to 1.10 parts by weight.
- the curing agent serves to control the reactivity of the surface of the adhesive coating layer. When the curing agent is included in too little amount, the curing reaction of the fusion layer is lowered, and a problem in that the sticky (sticky) property of the surface of the fusion layer is inferior may occur. Conversely, if too much curing agent is added, the fastening force may deteriorate after low-temperature welding.
- the bonding composition for an electrical steel sheet according to an embodiment of the present disclosure may further include 0.05 to 0.50 parts by weight of a wetting agent based on 100 parts by weight of the adhesive resin. Specifically, the humectant may be further included in an amount of 0.09 to 0.11 parts by weight.
- the bonding composition for an electrical steel sheet according to an embodiment of the present disclosure may further include 0.10 to 1.00 parts by weight of a curing catalyst based on 100 parts by weight of the adhesive resin.
- the curing catalyst may be further included in an amount of 0.40 to 0.60 parts by weight.
- the polyurethane resin of one embodiment of the present disclosure may have a number average molecular weight of 3,000 to 20,000 g/mol.
- the electrical steel sheet of an embodiment of the present disclosure includes an electrical steel sheet substrate; and a bonding coating layer positioned on the electrical steel sheet substrate, wherein the bonding coating layer includes an adhesive resin and a bonding additive, the adhesive resin is polyurethane, and the bonding additive includes a coupling agent containing amino silane.
- the laminate of one embodiment of the present disclosure includes a plurality of electrical steel sheets; and a fusion layer positioned between the plurality of electrical steel sheets, wherein the fusion layer includes an adhesive resin and a bonding additive, the adhesive resin is polyurethane, and the bonding additive is a coupling agent containing aminosilane.
- the fusion layer includes an adhesive resin and a bonding additive, the adhesive resin is polyurethane, and the bonding additive is a coupling agent containing aminosilane.
- the thickness of the fusion layer of the electrical steel sheet laminate may be 0.1 to 10 ⁇ m. If the thickness of the fusion layer is too thin, the adhesive force may be rapidly reduced, and if it is too thick, a problem due to stickiness may occur after the coating is wound. More specifically, the thickness of the fusion layer may be 5 to 7 ⁇ m.
- a coupling agent, a wetting agent, a curing catalyst, a curing agent, etc. may remain in the fusion layer of the electrical steel sheet laminate.
- the method for manufacturing an electrical steel sheet laminate comprises the steps of applying an adhesive coating composition to one or both sides of an electrical steel sheet, and then curing the adhesive coating layer to form an adhesive coating layer; and laminating a plurality of electrical steel sheets having an adhesive coating layer formed thereon and thermally fusion to form a fusion layer.
- an adhesive coating composition is prepared. Since the adhesive coating composition has been described above, overlapping descriptions will be omitted.
- the adhesive coating composition is coated on the surface of the electrical steel sheet and cured to form an adhesive coating layer.
- This step may be performed at a temperature in the range of 150 to 250 °C based on the plate temperature for curing the adhesive coating composition.
- a plurality of electrical steel sheets on which an adhesive coating layer is formed are laminated and heat-sealed to form a fusion layer 20 .
- the polymer components in the adhesive coating layer are heat-sealed to form a fusion layer.
- the thermal fusion may be performed under conditions of a temperature of 150 to 250° C., a pressure of 0.05 to 5.0 Mpa, and a pressure of 0.1 to 120 minutes. Each of the above conditions may be independently satisfied, and two or more conditions may be simultaneously satisfied. As such, by controlling the temperature, pressure, and time conditions in the thermal fusion step, it can be densely thermally fused between electrical steel sheets, without a gap or organic phase.
- a non-oriented electrical steel sheet (50 X 50 mm, 0.35 mmt) was prepared as a blank specimen.
- the adhesive coating solution was applied to each prepared blank specimen at a constant thickness on the top and bottom using a bar coater and a roll coater, cured at 150 to 200° C. for 20 seconds based on the plate temperature, and then slowly cooled in air to form an adhesive coating layer.
- Polyurethane was used as the polymer resin of the adhesive coating solution.
- Polyurethane was used as a diisocyanate monomer by mixing 2,4'-MDI and HDI in a weight ratio of 6: 4, and as a polyol, PPG (Poly (Propylene Glycol)) having a water molecular weight of 425 g/mol was used.
- the diisocyanate monomer was used in a mixture of 40% by weight and 60% by weight of the polyol based on the total weight of the polymer resin.
- the electrical steel sheet coated with the adhesive coating layer was laminated to a height of 20 mm, it was heat-sealed at 160° C. for 10 minutes by pressing with a force of 0.5 MPa. After heat sealing, the thickness of the fusion layer was about 3 ⁇ m. The heat-sealed fusion body was evaluated for each type of solution. As evaluation items, peel adhesion (T-peel, N/mm) and ATF resistance were evaluated and shown in Table 1 below.
- Solution stability After the prepared solution was left at a high temperature of 60° C. for 72 hours, changes due to sediment or reaction were observed. As for the observation method, the color or non-uniformity of the solution is first observed with the naked eye, and the presence or absence of surface defects is determined secondly through coating.
- Peel adhesion (T-peel, N/mm): Specimen for peeling (T-Peeloff) measurement was prepared according to ISO 11339. After bonding two 25 x 200 mm specimens to an area of 25 x 150 mm 2 , the unbonded portion was bent at 90 to prepare a T-shaped tensile specimen. The specimen prepared by the peeling method (T-Peeloff) was fixed to an upper/lower jig (JIG) with a constant force and then pulled at a constant speed and measured using an apparatus for measuring the tensile force of the stacked sample.
- JIG upper/lower jig
- the measured value was measured at the point where the interface with the minimum adhesive force among the interfaces of the laminated samples fell off. After maintaining the temperature of the specimen at 60 °C through a heating device, the adhesive force was measured.
- ATF resistance evaluation method When a driving motor is used in a vehicle, heat is generated while rotating, and ATF is used to cool it. Therefore, it is important to maintain the adhesive force of the laminated coil while impregnated with ATF in order to secure adhesion reliability during long-term use. Accordingly, the ATF resistance was evaluated. After immersing the prepared laminated coil in ATF having a temperature of 150° C. for 500 hours, shear adhesion was tested.
- shear adhesion for measuring the ATF resistance was measured by the shear method (Shear Strength). Specimens for shear measurement were prepared according to ISO 4587. Two 25 x 100 mm specimens were adhered to an area of 12.5 x 25 mm 2 and heat-sealed under the above conditions to prepare a shearing specimen.
- the specimen prepared by the shearing method was measured using an apparatus for measuring the tensile force of the stacked sample while pulling it at a constant speed. At this time, in the case of the shearing method, the measured value was measured at the point where the interface with the minimum adhesive force among the interfaces of the laminated samples fell off.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
| Silane Coupling agent | 접착제 기계적 물성 | 용액 안정성 | T-Peel (N/mm) |
내ATF (MPa) |
||||
| 종류 | 함량 (중량%) 수지 100중량%기준 |
Tg (℃) | 인장강도 (MPa) | 연신율 (%) | ||||
| 실시예1 | 3-아미노프로필 트리메톡시실란 | 0.5 | -50 | 60 | 500 | OK | 2.5 | 1.5 |
| 실시예2 | 3-아미노프로필 트리메톡시실란 | 1 | -50 | 60 | 500 | OK | 3.0 | 2.0 |
| 실시예3 | 3-아미노프로필 트리메톡시실란 | 3.0 | -40 | 50 | 400 | OK | 2.0 | 1.7 |
| 실시예 4 | 3-아미노프로필 트리메톡시실란 | 0.05 | -50 | 60 | 500 | OK | 1.7 | 1.5 |
| 비교예1 | 3-아미노프로필 트리메톡시실란 | 5 | -20 | 40 | 200 | NG | 1.1 | 0.7 |
| 비교예2 | 3-글리시독시프로필-트리메톡시실렌 | 0.5 | -50 | 60 | 500 | OK | 1.2 | 1.2 |
| 비교예3 | 3-메타크릴옥시프로필-트리메톡시실란 | 0.5 | -50 | 60 | 500 | OK | 1.3 | 1.5 |
| 비교예4 | 3-머캅토프로필트리메톡시실란 | 0.5 | -50 | 60 | 500 | OK | 1.3 | 1.2 |
| 비교예5 | - | 0 | -20 | 60 | 250 | OK | 1.1 | 1.5 |
| 비교예6 | 3-아미노프로필 트리메톡시실란 | 0.01 | -20 | 60 | 200 | OK | 1.5 | 1.4 |
Claims (9)
- 접착 수지 및 본딩 첨가제를 포함하고,상기 접착 수지는 폴리우레탄 이며,상기 본딩 첨가제는 아미노 실란을 5중량% 미만 (0 중량% 제외)으로 포함하는 커플링제를 포함하는, 전기강판용 본딩 조성물.
- 제1항에 있어서,상기 커플링제에 포함된 아미노 실란은 하기 화학식 1로 표시되는, 전기강판용 본딩 조성물.[화학식 1]상기 화학식 1에서R1 내지 R5는 서로 독립적으로, 수소, 중수소, 치환 또는 비치환된 C1 내지 C10 알킬기, 치환 또는 비치환된 C6 내지 C20 아릴기, 치환 또는 비치환된 C5 내지 C20 헤테로아릴기, 또는 이소시아네이트기이고,L1 내지 L4는 서로 독립적으로 치환 또는 비치환된 C1 내지 C10 알킬렌기, 치환 또는 비치환된 C2 내지 C10 알키닐렌기, 치환 또는 비치환된 C6 내지 C20 아릴렌기, 또는 치환 또는 비치환된 C5 내지 C20 헤테로아릴렌기 이고,n1 내지 n4는 각각 독립적으로 0 내지 10 중 어느 하나의 정수이다.
- 제1항에 있어서,상기 커플링제에 포함된 아미노 실란은 하기 화학식 2로 표시되는, 전기강판용 본딩 조성물.[화학식 2]상기 화학식 2에서R1 내지 R5는 서로 독립적으로, 수소, 중수소, 치환 또는 비치환된 C1 내지 C10 알킬기, 치환 또는 비치환된 C6 내지 C20 아릴기, 치환 또는 비치환된 C5 내지 C20 헤테로아릴기, 또는 이소시아네이트기이고,L4는 치환 또는 비치환된 C1 내지 C10 알킬렌기, 치환 또는 비치환된 C2 내지 C10 알키닐렌기, 치환 또는 비치환된 C6 내지 C20 아릴렌기, 또는 치환 또는 비치환된 C5 내지 C20 헤테로아릴렌기 이고,n은 1 내지 10 중 어느 하나의 정수이다.
- 제1항에 있어서,상기 본딩 첨가제는 습윤제, 경화제, 경화촉매로 이루어진 군 중에서 1 이상을 더 포함하는, 전기강판용 본딩 조성물.
- 제1항에 있어서,상기 폴리우레탄은 이소시아네이트 모노머 및 폴리올이 반응하여 형성된 것이고, 상기 이소시아네이트 모노머는 방향족 이소시아네이트 모노머 및 지방족 이소시아네이트 모노머로 이루어진 군 중에서 선택된 1종 이상인, 전기강판용 본딩 조성물.
- 제5항에 있어서,상기 방향족 이소시아네이트 모노머는 화학식 3, 화학식 4 또는 이의 조합인 모노머인, 전기강판용 본딩 조성물.[화학식 3][화학식 4]상기 화학식 3 에서,R1 내지 R10은 서로 독립적으로, 수소, 중수소, 치환 또는 비치환된 C1 내지 C10 알킬기, 치환 또는 비치환된 C6 내지 C20 아릴기, 치환 또는 비치환된 C5 내지 C20 헤테로아릴기, 또는 이소시아네이트기이고,R1 내지 R5 중 어느 하나는 이소시아네이트이고, R6 내지 R10 중 어느 하나는 이소시아네이트이며,R3 및 R8 이 동시에 이소시아네이트인 경우는 제외되고,L은 치환 또는 비치환된 C1 내지 C10 알킬렌기, 치환 또는 비치환된 C2 내지 C10 알키닐렌기, 치환 또는 비치환된 C6 내지 C20 아릴렌기, 또는 치환 또는 비치환된 C5 내지 C20 헤테로아릴렌기이고,n은 1 내지 10 중 어느 하나의 정수이며,상기 화학식 4에서,R11은 내지 R16은 서로 독립적으로, 수소, 중수소, 치환 또는 비치환된 C1 내지 C10 알킬기, 치환 또는 비치환된 C6 내지 C20 아릴기, 또는 치환 또는 비치환된 C5 내지 C20 헤테로아릴기, 이소시아네이트기 또는 치환 또는 비치환된 C1 내지 C10 알킬 이소시아네이트기이고, R11은 내지 R16 중에 적어도 두 개는 이소시아네이트 또는 치환 또는 비치환된 C1 내지 C10 알킬 이소시아네이트이다.
- 전기강판 기재; 및상기 전기강판 기재 상에 위치하는 본딩 코팅층을 포함하고,상기 본딩 코팅층은 접착 수지 및 본딩 첨가제를 포함하고,상기 접착 수지는 폴리우레탄 이며,상기 본딩 첨가제는 아미노 실란을 5중량% 미만 (0 중량% 제외)으로 포함하는 커플링제를 포함하는, 전기강판.
- 복수의 전기강판; 및상기 복수의 전기강판 사이에 위치하는 융착층;을 포함하고,상기 융착층은 접착 수지 및 본딩 첨가제를 포함하고,상기 접착 수지는 폴리우레탄 이며,상기 본딩 첨가제는 아미노 실란을 5중량% 미만 (0 중량% 제외)으로 포함하는 커플링제를 포함하는, 적층체.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023537529A JP7704865B2 (ja) | 2020-12-21 | 2021-12-16 | 電磁鋼板接着コーティング組成物、電磁鋼板積層体およびその製造方法 |
| EP21911399.0A EP4265702A4 (en) | 2020-12-21 | 2021-12-16 | ADHESIVE LAYER COMPOSITION FOR ELECTRICAL STEEL SHEET, ELECTRICAL STEEL SHEET LAMINATE AND METHOD FOR MANUFACTURING SAME |
| CN202180094316.XA CN116981750A (zh) | 2020-12-21 | 2021-12-16 | 电工钢板粘结涂覆组合物,电工钢板层叠体及其制造方法 |
| MX2023007359A MX2023007359A (es) | 2020-12-21 | 2021-12-16 | Composición de recubrimiento adhesivo para chapa de acero eléctrico, laminado de chapa de acero eléctrico y método de fabricación del mismo. |
| US18/268,838 US20240043723A1 (en) | 2020-12-21 | 2021-12-16 | Adhesive coating composition for electrical steel sheet, electrical steel sheet laminate, and method for manufacturing same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2020-0180181 | 2020-12-21 | ||
| KR1020200180181A KR102560531B1 (ko) | 2020-12-21 | 2020-12-21 | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022139332A1 true WO2022139332A1 (ko) | 2022-06-30 |
Family
ID=82159657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2021/019211 Ceased WO2022139332A1 (ko) | 2020-12-21 | 2021-12-16 | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20240043723A1 (ko) |
| EP (1) | EP4265702A4 (ko) |
| JP (1) | JP7704865B2 (ko) |
| KR (1) | KR102560531B1 (ko) |
| CN (1) | CN116981750A (ko) |
| MX (1) | MX2023007359A (ko) |
| WO (1) | WO2022139332A1 (ko) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102391988B1 (ko) * | 2020-12-21 | 2022-04-27 | 주식회사 포스코 | 전기강판 및 이의 적층체 |
| KR102538122B1 (ko) * | 2020-12-21 | 2023-05-26 | 주식회사 포스코 | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 |
| KR20250092778A (ko) * | 2023-12-15 | 2025-06-24 | 주식회사 포스코 | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100797321B1 (ko) * | 2006-12-29 | 2008-01-22 | 주식회사 포스코 | 금속표면 처리용 수지 조성물, 이를 이용한 금속표면처리방법 및 이에 따라 처리된 강판 |
| KR101103661B1 (ko) * | 2008-12-26 | 2012-01-11 | 주식회사 포스코 | 금속표면처리용 조성물 |
| KR101221839B1 (ko) * | 2012-07-06 | 2013-01-16 | 주식회사 노루코일코팅 | 아연도금 강판 표면처리 조성물 및 이를 이용한 표면처리 방법 |
| JP2013108183A (ja) * | 2011-03-29 | 2013-06-06 | Nippon Steel & Sumitomo Metal Corp | 表面処理鋼板の製造方法 |
| KR101499361B1 (ko) * | 2013-11-27 | 2015-03-06 | 현대제철 주식회사 | 가전 및 건재용 불연성 칼라강판 및 제조 방법 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5915157B2 (ja) * | 1979-10-18 | 1984-04-07 | 大日本インキ化学工業株式会社 | 複合ラミネ−ト用接着剤組成物 |
| JPH10130615A (ja) * | 1996-10-25 | 1998-05-19 | Toyo Mooton Kk | ポリウレタン接着剤組成物 |
| JP5353559B2 (ja) * | 2009-08-24 | 2013-11-27 | Dic株式会社 | アルコール可溶型ポリウレタンコーティング剤、接着剤及びそれを用いて得られる皮革様シート |
| KR101766735B1 (ko) * | 2009-12-10 | 2017-08-09 | 디아이씨 가부시끼가이샤 | 우레탄 수지 조성물, 코팅제 및 접착제, 및 그것을 사용하여 얻어지는 경화물 및 경화물의 제조 방법 |
| JP2013095759A (ja) * | 2011-10-27 | 2013-05-20 | Yokohama Rubber Co Ltd:The | 樹脂ガラス用ポリウレタン接着剤組成物 |
| JP2016524000A (ja) * | 2013-05-22 | 2016-08-12 | シーカ・テクノロジー・アーゲー | シラン基を含有するホットメルト接着剤を製造する方法 |
| JP6480174B2 (ja) * | 2014-12-17 | 2019-03-06 | ヘンケルジャパン株式会社 | 積層シート用接着剤 |
| EP3310826B1 (en) * | 2015-06-18 | 2019-11-13 | Dow Global Technologies LLC | Latent two-part polyurethane adhesives curable with infrared radiation |
| JP6404977B2 (ja) * | 2016-03-31 | 2018-10-17 | Jfeスチール株式会社 | 耐熱接着性絶縁被膜用組成物および絶縁被膜付き電磁鋼板 |
| US11063313B2 (en) * | 2016-12-20 | 2021-07-13 | Dic Corporation | Adhesive for packaging material, a packaging material, and a container |
| KR101904306B1 (ko) * | 2016-12-23 | 2018-10-04 | 주식회사 포스코 | 무방향성 전기강판 접착 코팅 조성물 및 무방향성 전기강판 제품의 제조 방법 |
| KR102391988B1 (ko) * | 2020-12-21 | 2022-04-27 | 주식회사 포스코 | 전기강판 및 이의 적층체 |
-
2020
- 2020-12-21 KR KR1020200180181A patent/KR102560531B1/ko active Active
-
2021
- 2021-12-16 EP EP21911399.0A patent/EP4265702A4/en active Pending
- 2021-12-16 US US18/268,838 patent/US20240043723A1/en active Pending
- 2021-12-16 WO PCT/KR2021/019211 patent/WO2022139332A1/ko not_active Ceased
- 2021-12-16 MX MX2023007359A patent/MX2023007359A/es unknown
- 2021-12-16 JP JP2023537529A patent/JP7704865B2/ja active Active
- 2021-12-16 CN CN202180094316.XA patent/CN116981750A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100797321B1 (ko) * | 2006-12-29 | 2008-01-22 | 주식회사 포스코 | 금속표면 처리용 수지 조성물, 이를 이용한 금속표면처리방법 및 이에 따라 처리된 강판 |
| KR101103661B1 (ko) * | 2008-12-26 | 2012-01-11 | 주식회사 포스코 | 금속표면처리용 조성물 |
| JP2013108183A (ja) * | 2011-03-29 | 2013-06-06 | Nippon Steel & Sumitomo Metal Corp | 表面処理鋼板の製造方法 |
| KR101221839B1 (ko) * | 2012-07-06 | 2013-01-16 | 주식회사 노루코일코팅 | 아연도금 강판 표면처리 조성물 및 이를 이용한 표면처리 방법 |
| KR101499361B1 (ko) * | 2013-11-27 | 2015-03-06 | 현대제철 주식회사 | 가전 및 건재용 불연성 칼라강판 및 제조 방법 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4265702A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2023554120A (ja) | 2023-12-26 |
| EP4265702A1 (en) | 2023-10-25 |
| KR20220089493A (ko) | 2022-06-28 |
| US20240043723A1 (en) | 2024-02-08 |
| MX2023007359A (es) | 2023-09-05 |
| KR102560531B1 (ko) | 2023-07-26 |
| EP4265702A4 (en) | 2024-06-05 |
| JP7704865B2 (ja) | 2025-07-08 |
| CN116981750A (zh) | 2023-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022139332A1 (ko) | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 | |
| WO2022139338A1 (ko) | 전기강판 및 이의 적층체 | |
| WO2022139333A1 (ko) | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 | |
| WO2022139328A1 (ko) | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 | |
| WO2021125859A2 (ko) | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 | |
| WO2022139351A1 (ko) | 전기강판 및 이의 적층체 | |
| WO2023113562A1 (ko) | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 | |
| WO2023113560A1 (ko) | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 | |
| WO2021125860A2 (ko) | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 | |
| WO2025127729A1 (ko) | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 | |
| WO2022139384A1 (ko) | 셀프 본딩용 전기 강판 및 이를 포함하는 적층체 | |
| WO2024136114A1 (ko) | 전기강판 접착 코팅 조성물, 전기강판 적층체 및 이의 제조 방법 | |
| WO2023101329A1 (en) | Polyamic acid composition and polyimide film prepared with the same | |
| WO2022139383A1 (ko) | 전기 강판 적층체 | |
| KR101786085B1 (ko) | 반도체 장치용 접착제 조성물 및 이를 이용한 접착 필름 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21911399 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2023/007359 Country of ref document: MX |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2023537529 Country of ref document: JP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 18268838 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202337047528 Country of ref document: IN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2021911399 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2021911399 Country of ref document: EP Effective date: 20230721 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202180094316.X Country of ref document: CN |
|
| WWG | Wipo information: grant in national office |
Ref document number: 202337047528 Country of ref document: IN |













