CN112094574A - Production process of weather-resistant color cathode electrophoretic paint - Google Patents
Production process of weather-resistant color cathode electrophoretic paint Download PDFInfo
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- CN112094574A CN112094574A CN202011012060.7A CN202011012060A CN112094574A CN 112094574 A CN112094574 A CN 112094574A CN 202011012060 A CN202011012060 A CN 202011012060A CN 112094574 A CN112094574 A CN 112094574A
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- Prior art keywords
- hydrogenated bisphenol
- epoxy resin
- electrophoretic paint
- weather
- color cathode
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4419—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
- C09D5/443—Polyepoxides
- C09D5/4453—Polyepoxides characterised by the nature of the curing agent
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/02—Polycondensates containing more than one epoxy group per molecule
- C08G59/04—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
- C08G59/4028—Isocyanates; Thioisocyanates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4419—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
- C09D5/443—Polyepoxides
- C09D5/4457—Polyepoxides containing special additives, e.g. pigments, polymeric particles
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to the technical field of electrophoretic paint, and discloses a production process of weather-resistant color cathode electrophoretic paint, which comprises the following steps: s1, taking hydrogenated bisphenol A type epoxy resin with the molecular weight of 2000-2040; s2, heating the hydrogenated bisphenol A epoxy resin in S1, and performing amination ring opening; s3, after the material subjected to amination ring opening in the S2 is cooled, adding a light stabilizer or an ultraviolet absorbent, wherein the weight of the light stabilizer or the ultraviolet absorbent is 0.1-0.15% of that of the hydrogenated bisphenol A epoxy resin; s4, adding a curing agent into S3; s5, neutralizing the S4 by glacial acetic acid to generate ammonium salt and then carrying out positive charge; and S6, adding water into the S5 to emulsify, and finishing the electrophoretic paint emulsion. The invention has good corrosion resistance, good weather resistance and little damage to the environment.
Description
Technical Field
The invention relates to the technical field of electrophoretic paint, in particular to a production process of weather-resistant color cathode electrophoretic paint.
Background
In the production fields of engineering machinery, agricultural machinery and the like, the requirements on appearance decoration effect and weather resistance are high. Wherein, the former method of spraying two or three times or spraying finish paint after electrophoresis is adopted, thus not only leading the corrosion resistance of the paint to be poorer, but also leading the weather resistance to be poorer, simultaneously leading the discharge of VOCs to be more and leading the damage to the environment to be larger.
Disclosure of Invention
The invention aims to provide a production process of weather-resistant color cathode electrophoretic paint, and aims to solve the problems of poor corrosion resistance, poor weather resistance and great damage to the environment.
The technical purpose of the invention is realized by the following technical scheme: a production process of weather-resistant color cathode electrophoretic paint comprises the following steps:
s1, taking hydrogenated bisphenol A type epoxy resin with the molecular weight of 2000-2040;
s2, heating the hydrogenated bisphenol A epoxy resin in S1, and performing amination ring opening;
s3, after the material subjected to amination ring opening in the S2 is cooled, adding a light stabilizer or an ultraviolet absorbent, wherein the weight of the light stabilizer or the ultraviolet absorbent is 0.1-0.15% of that of the hydrogenated bisphenol A epoxy resin;
s4, adding a curing agent into the S3, wherein the mass of the curing agent is 45-55% of that of the hydrogenated bisphenol A epoxy resin;
s5, neutralizing the S4 by glacial acetic acid to generate ammonium salt and then carrying out positive charge;
and S6, adding water into the S5 to emulsify, and finishing the electrophoretic paint emulsion.
The invention is further provided with: the preparation method of the hydrogenated bisphenol A epoxy resin in S1 comprises the following steps:
s11, mixing hydrogenated bisphenol A and epichlorohydrin, and opening ring to produce chlorohydrin ether under the action of Lewis acid catalyst, wherein the temperature is 60-95 ℃, and the time is 2-8 h;
s12, adding alkali to carry out ring-closure reaction under the reaction condition;
s13, adding a solvent for extraction, and washing with water to obtain liquid hydrogenated bisphenol A epoxy resin with the average molecular weight of 372-376;
s14, carrying out chain extension reaction on the hydrogenated bisphenol A epoxy resin to ensure that the molecular weight is between 2000-2040.
The invention is further provided with: the mole ratio of hydrogenated bisphenol A to epichlorohydrin in S11 is 1: 1.
the invention is further provided with: the alkali in the S12 is one or a mixture of sodium carbonate, potassium carbonate or sodium hydroxide, and the molar ratio of the alkali to the hydrogenated bisphenol A is 1: 1.
The invention is further provided with: the chain extension reaction in the S14 comprises the following steps:
mixing hydrogenated bisphenol A epoxy resin and hydrogenated bisphenol A, heating to 130-135 ℃ by taking methyl triphenyl phosphorus iodide as a catalyst, wherein the mass of the catalyst is 0.5-0.6% of that of the hydrogenated bisphenol A epoxy resin;
detecting the epoxy equivalent every 1h, and making a time-epoxy equivalent curve;
calculating the time when the epoxy equivalent reaches 1010 +/-10 by curve, and stopping chain extension;
the molecular weight is equal to twice the epoxy equivalent, i.e., molecular weight of 2000-2040.
The invention is further provided with: the mole ratio of the hydrogenated bisphenol A epoxy resin to the hydrogenated bisphenol A in the S14 is 1: 3-5.
The invention is further provided with: the light stabilizer in the S3 is Tinuvin 123.
The invention is further provided with: the ultraviolet absorber in S3 is UV-1130.
The invention is further provided with: the curing agent in S4 is H12MDI。
The invention is further provided with: said H12MDI uses 2, 2-dimethyl-1, 3-dioxolane-4-methanol for blocking:
h is to be12Adding MDI into a container, and dropwise adding 2, 2-dimethyl-1, 3-dioxolane-4-methanol at 50-70 deg.C for 2-3 hr until NCO-EW is detected>20000g/eg。
The invention has the beneficial effects that:
1. the electrophoretic paint with the integrated bottom surface is used for spraying paint on the axle and part of automobile parts, the thickness of a disposable paint film can reach 60 mu m at most, the leveling property is good, the color is bright, the coating cost is saved for vast engineering machinery and agricultural machinery, the coating mode is optimized, the automation degree is improved, and the emission of VOCs is reduced to a great extent;
2. the pigment has better stability and weather resistance besides dyeing, is an essential component of the electrophoretic paint color, but does not influence the normal electrophoresis;
3. 2, 2-dimethyl-1, 3-dioxolane-4-methanol blocked H12Compared with other conventional alcohol ether sealing agents, MDI has higher under-baking safety, and can ensure that a paint film of the electrophoretic paint is completely crosslinked to form a compact paint film;
4. the light stabilizer and the ultraviolet absorber can absorb ultraviolet rays, and the skeleton damage of ultraviolet rays to an electrophoretic paint film is reduced.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
A production process of weather-resistant color cathode electrophoretic paint comprises the following steps:
s1, taking hydrogenated bisphenol A type epoxy resin with the molecular weight of 2000-2040;
s2, heating the hydrogenated bisphenol A epoxy resin in S1, and performing amination ring opening;
s3, after the material subjected to amination ring opening in the S2 is cooled, adding a light stabilizer or an ultraviolet absorbent, wherein the weight of the light stabilizer or the ultraviolet absorbent is 0.1-0.15% of that of the hydrogenated bisphenol A epoxy resin;
s4, adding a curing agent into the S3, wherein the mass of the curing agent is 45-55% of that of the hydrogenated bisphenol A epoxy resin;
s5, neutralizing the S4 by glacial acetic acid to generate ammonium salt and then carrying out positive charge;
and S6, adding water into the S5 to emulsify, and finishing the electrophoretic paint emulsion.
The preparation method of the hydrogenated bisphenol A epoxy resin in S1 comprises the following steps:
s11, mixing hydrogenated bisphenol A and epichlorohydrin, and opening ring to produce chlorohydrin ether under the action of Lewis acid catalyst, wherein the temperature is 60-95 ℃, and the time is 2-8 h;
s12, adding alkali to carry out ring-closure reaction under the reaction condition;
s13, adding a solvent for extraction, and washing with water to obtain liquid hydrogenated bisphenol A epoxy resin with the average molecular weight of 372-376;
s14, carrying out chain extension reaction on the hydrogenated bisphenol A epoxy resin to ensure that the molecular weight is between 2000-2040.
The mole ratio of hydrogenated bisphenol A to epichlorohydrin in S11 is 1: 1.
the alkali in the S12 is one or a mixture of sodium carbonate, potassium carbonate or sodium hydroxide, and the molar ratio of the alkali to the hydrogenated bisphenol A is 1: 1.
The chain extension reaction in the S14 comprises the following steps:
mixing hydrogenated bisphenol A epoxy resin and hydrogenated bisphenol A, heating to 130-135 ℃ by taking methyl triphenyl phosphorus iodide as a catalyst, wherein the mass of the catalyst is 0.5-0.6% of that of the hydrogenated bisphenol A epoxy resin;
detecting the epoxy equivalent every 1h, and making a time-epoxy equivalent curve;
calculating the time when the epoxy equivalent reaches 1010 +/-10 by curve, and stopping chain extension;
the molecular weight is equal to twice the epoxy equivalent, i.e., molecular weight of 2000-2040.
The mole ratio of the hydrogenated bisphenol A epoxy resin to the hydrogenated bisphenol A in the S14 is 1: 3-5.
The light stabilizer in the S3 is Tinuvin 123.
The ultraviolet absorber in S3 is UV-1130.
The curing agent in S4 is H12MDI. Said H12MDI uses 2, 2-dimethyl-1, 3-dioxolane-4-methanol for blocking:
h is to be12Adding MDI into a container, and dropwise adding 2, 2-dimethyl-1, 3-dioxolane-4-methanol at 50-70 deg.C for 2-3 hr until NCO-EW is detected>20000g/eg。
According to the production process of the weather-resistant color cathode electrophoretic paint, one electrophoretic coating used by the cathode electrophoretic paint has the antirust function of a substrate, namely the salt spray resistance and the ultraviolet aging resistance of the surface. Meanwhile, the thickness of a disposable paint film can reach 60 mu m at most, the leveling property is good, the color is bright, the coating cost is saved for vast engineering machinery and agricultural machinery, the coating mode is optimized, the automation degree is improved, and the discharge of VOCs is reduced to a great extent;
the pigment has better stability and weather resistance besides dyeing, is an essential component of the electrophoretic paint color, but does not influence the normal electrophoresis;
2, 2-dimethyl-1, 3-dioxolane-4-methanol blocked H12Compared with other conventional alcohol ether sealing agents, MDI has higher under-baking safety, and can ensure that a paint film of the electrophoretic paint is completely crosslinked to form a compact paint film;
the light stabilizer and the ultraviolet absorber can absorb ultraviolet rays, and the skeleton damage of ultraviolet rays to an electrophoretic paint film is reduced.
It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. A production process of weather-resistant color cathode electrophoretic paint is characterized by comprising the following steps:
s1, taking hydrogenated bisphenol A type epoxy resin with the molecular weight of 2000-2040;
s2, heating the hydrogenated bisphenol A epoxy resin in S1, and performing amination ring opening;
s3, after the material subjected to amination ring opening in the S2 is cooled, adding a light stabilizer or an ultraviolet absorbent, wherein the weight of the light stabilizer or the ultraviolet absorbent is 0.1-0.15% of that of the hydrogenated bisphenol A epoxy resin;
s4, adding a curing agent into the S3, wherein the mass of the curing agent is 45-55% of that of the hydrogenated bisphenol A epoxy resin;
s5, neutralizing the S4 by glacial acetic acid to generate ammonium salt and then carrying out positive charge;
and S6, adding water into the S5 to emulsify, and finishing the electrophoretic paint emulsion.
2. The production process of the weather-resistant color cathode electrophoretic paint according to claim 1, characterized in that: the preparation method of the hydrogenated bisphenol A epoxy resin in S1 comprises the following steps:
s11, mixing hydrogenated bisphenol A and epichlorohydrin, and opening ring to produce chlorohydrin ether under the action of Lewis acid catalyst, wherein the temperature is 60-95 ℃, and the time is 2-8 h;
s12, adding alkali to carry out ring-closure reaction under the reaction condition;
s13, adding a solvent for extraction, and washing with water to obtain liquid hydrogenated bisphenol A epoxy resin with the average molecular weight of 372-376;
s14, carrying out chain extension reaction on the hydrogenated bisphenol A epoxy resin to ensure that the molecular weight is between 2000-2040.
3. The production process of the weather-resistant color cathode electrophoretic paint according to claim 2, characterized in that: the mole ratio of hydrogenated bisphenol A to epichlorohydrin in S11 is 1: 1.
4. the process for producing a weather-resistant color cathode electrophoretic paint according to claim 3, wherein: the alkali in the S12 is one or a mixture of sodium carbonate, potassium carbonate or sodium hydroxide, and the molar ratio of the alkali to the hydrogenated bisphenol A is 1: 1.
5. The production process of the weather-resistant color cathode electrophoretic paint according to claim 2, characterized in that: the chain extension reaction in the S14 comprises the following steps:
mixing hydrogenated bisphenol A epoxy resin and hydrogenated bisphenol A, heating to 130-135 ℃ by taking methyl triphenyl phosphorus iodide as a catalyst, wherein the mass of the catalyst is 0.5-0.6% of that of the hydrogenated bisphenol A epoxy resin;
detecting the epoxy equivalent every 1h, and making a time-epoxy equivalent curve;
calculating the time when the epoxy equivalent reaches 1010 +/-10 by curve, and stopping chain extension;
the molecular weight is equal to twice the epoxy equivalent, i.e., molecular weight of 2000-2040.
6. The process for producing a weather-resistant color cathode electrophoretic paint according to claim 5, wherein: the mole ratio of the hydrogenated bisphenol A epoxy resin to the hydrogenated bisphenol A in the S14 is 1: 3-5.
7. The production process of the weather-resistant color cathode electrophoretic paint according to claim 1, characterized in that: the light stabilizer in the S3 is Tinuvin 123.
8. The production process of the weather-resistant color cathode electrophoretic paint according to claim 1, characterized in that: the ultraviolet absorber in S3 is UV-1130.
9. The production process of the weather-resistant color cathode electrophoretic paint according to claim 1, characterized in that: the curing agent in S4 is H12MDI。
10. The process for producing a weather-resistant color cathode electrophoretic paint according to claim 9, wherein: said H12MDI uses 2, 2-dimethyl-1, 3-dioxolane-4-methanol for blocking:
h is to be12Adding MDI into a container, and dropwise adding 2, 2-dimethyl-1, 3-dioxolane-4-methanol at 50-70 deg.C for 2-3 hr until NCO-EW is detected>20000g/eg。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011012060.7A CN112094574A (en) | 2020-09-23 | 2020-09-23 | Production process of weather-resistant color cathode electrophoretic paint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011012060.7A CN112094574A (en) | 2020-09-23 | 2020-09-23 | Production process of weather-resistant color cathode electrophoretic paint |
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| CN112094574A true CN112094574A (en) | 2020-12-18 |
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| CN202011012060.7A Pending CN112094574A (en) | 2020-09-23 | 2020-09-23 | Production process of weather-resistant color cathode electrophoretic paint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113861823A (en) * | 2021-10-13 | 2021-12-31 | 广东科力德新材料有限公司 | High-weather-resistance cathode electrophoretic paint with integrated bottom and top and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004107654A (en) * | 2002-08-22 | 2004-04-08 | Nippon Paint Co Ltd | Cationic electrodeposition coating composition for galvanized steel sheet |
| CN103396718A (en) * | 2013-08-02 | 2013-11-20 | 武汉双虎涂料有限公司 | Preparation method of fastener cathode electrophoretic paint |
| CN103436153A (en) * | 2012-09-06 | 2013-12-11 | 湖北天鹅涂料股份有限公司 | Weather-proof cathodic electrophoretic coating composition |
| CN103497617A (en) * | 2013-09-09 | 2014-01-08 | 湖南工程学院 | Preparation method for self-emulsified cationic epoxy emulsion |
| CN106715605A (en) * | 2014-09-26 | 2017-05-24 | 巴斯夫涂料有限公司 | Aqueous dispersions of binders for cathodic electrodeposition coatings containing a cross-linking agent on the basis of polyisocyanates blocked with 2,2-dimethyl-1,3-dioxolane-4-methanol |
-
2020
- 2020-09-23 CN CN202011012060.7A patent/CN112094574A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004107654A (en) * | 2002-08-22 | 2004-04-08 | Nippon Paint Co Ltd | Cationic electrodeposition coating composition for galvanized steel sheet |
| CN103436153A (en) * | 2012-09-06 | 2013-12-11 | 湖北天鹅涂料股份有限公司 | Weather-proof cathodic electrophoretic coating composition |
| CN103396718A (en) * | 2013-08-02 | 2013-11-20 | 武汉双虎涂料有限公司 | Preparation method of fastener cathode electrophoretic paint |
| CN103497617A (en) * | 2013-09-09 | 2014-01-08 | 湖南工程学院 | Preparation method for self-emulsified cationic epoxy emulsion |
| CN106715605A (en) * | 2014-09-26 | 2017-05-24 | 巴斯夫涂料有限公司 | Aqueous dispersions of binders for cathodic electrodeposition coatings containing a cross-linking agent on the basis of polyisocyanates blocked with 2,2-dimethyl-1,3-dioxolane-4-methanol |
Non-Patent Citations (2)
| Title |
|---|
| 叶新栋等: "双酚A型环氧树脂的合成与应用研究进展", 《山东化工》 * |
| 吴让君等: "柔性环氧树脂在阴极环氧电泳涂料中的合成及应用研究", 《涂层与防护》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113861823A (en) * | 2021-10-13 | 2021-12-31 | 广东科力德新材料有限公司 | High-weather-resistance cathode electrophoretic paint with integrated bottom and top and preparation method thereof |
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Application publication date: 20201218 |