WO2014162868A1 - 水性表面処理剤及びそれを用いた物品 - Google Patents
水性表面処理剤及びそれを用いた物品 Download PDFInfo
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- WO2014162868A1 WO2014162868A1 PCT/JP2014/057284 JP2014057284W WO2014162868A1 WO 2014162868 A1 WO2014162868 A1 WO 2014162868A1 JP 2014057284 W JP2014057284 W JP 2014057284W WO 2014162868 A1 WO2014162868 A1 WO 2014162868A1
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- aqueous
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- surface treating
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Classifications
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- 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
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/797—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing carbodiimide and/or uretone-imine groups
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
Definitions
- the present invention relates to an aqueous surface treatment agent capable of imparting a higher-grade design to a matte (matte) surface of various articles, and an article using the same.
- ⁇ Various articles are often painted on the surface for the purpose of improving design and imparting a sense of quality.
- the surface of plastic molded products such as housings for home appliances, housings for electronic devices such as personal computers, mobile phones, and smartphones, and interior and exterior materials for automobiles should be given a high-class design.
- a surface treatment agent is used.
- many of these surface treatment agents are solvent-based.
- VOC volatile organic compound
- the surface treatment agent is being made water-based.
- an aqueous surface treating agent that makes the surface of various articles matte
- an aqueous urethane-based resin using a polyol component containing a polyolefin polyol and an aqueous matte surface treating agent containing polyurethane fine particles as a matting agent have been proposed.
- this water-based matte surface treatment agent is an aqueous surface treatment agent that produces a matte feeling mainly by a matting agent. For example, when a coating process is formed on a film or sheet and then subjected to a molding process such as stretching, There was a problem that the gloss decreased and the gloss increased.
- Patent Document 2 A method of overcoating two kinds of coating agents containing a matting agent has been proposed (see, for example, Patent Document 2), assuming that the mat feeling does not decrease when a molding process such as stretching is performed.
- this method requires a coating process and a drying process a plurality of times, and has a problem in productivity.
- the problem to be solved by the present invention is that the surface of various articles has a matte tone, can impart a more luxurious design, and the coating does not deteriorate the matte feeling even if it is subjected to a molding process such as stretching.
- it is providing the aqueous surface treating agent obtained by one application, and an article using the same.
- an aqueous surface treatment agent using a combination of aqueous polyurethane and an aqueous polyester or aqueous acrylic resin as another resin has a mat-like surface for various articles. And found that a coating film that can give a more luxurious design and does not deteriorate the matte feeling even when subjected to molding such as stretching can be obtained by a single coating. Completed.
- the present invention comprises an aqueous surface comprising an aqueous polyurethane (A), an aqueous polyester (B) or an aqueous acrylic resin (C), a matting agent (D), and a crosslinking agent (E).
- A aqueous polyurethane
- B aqueous polyester
- C aqueous acrylic resin
- D a matting agent
- E a crosslinking agent
- the present invention relates to a treatment agent and an article using the same.
- the aqueous surface treating agent of the present invention has a matte tone on the surface of various articles, can give a higher-grade design, and has a coating film that does not deteriorate the matte feeling even if it is subjected to a molding process such as stretching. Since it is obtained by a single coating, it can be used as a treatment agent on the surface of various articles.
- it can be suitably used for plastic molded articles, and among plastic molded articles, it is suitably used for TPO leather and TPO sheets that are molded articles of thermoplastic olefin (hereinafter abbreviated as “TPO”). be able to.
- the aqueous surface treating agent of the present invention contains an aqueous polyurethane (A), an aqueous polyester (B) or an aqueous acrylic resin (C), a matting agent (D), and a crosslinking agent (E).
- the aqueous polyurethane (A) may be any polyurethane that dissolves or disperses in an aqueous medium, and among them, a polyurethane having a carboxyl group and / or a hydroxyl group is preferable.
- examples of the method for producing a polyurethane having a hydroxyl group include a method of reacting an excess amount of polyol and / or glycol with polyisocyanate to obtain a polyurethane having a hydroxyl group at the terminal, an isocyanate group terminal And a method of obtaining a polyurethane having a hydroxyl group by reacting the urethane prepolymer with an amino alcohol such as 2-aminoethanol, 2-aminoethylethanolamine or diethanolamine, aminophenol or the like.
- examples of the method for producing a polyurethane having a carboxyl group include a method of using a compound having a carboxyl group as a raw material in the urethanization reaction.
- polyol used as a raw material for the aqueous polyurethane (A) examples include polyester polyols, polyether polyols, polycarbonate polyols, polyacetal polyols, polyacrylate polyols, polyester amide polyols, polythioether polyols, and polybutadiene polyols such as polybutadiene. It is done. Among these, polycarbonate polyol is preferable because of its excellent durability.
- Examples of the carboxyl group-containing compound used as a raw material for the polyurethane having a carboxyl group include 2,2′-dimethylolpropionic acid, 2,2′-dimethylolbutanoic acid, 2,2′-dimethylolbutyric acid, 2,2'-dimethylolvaleric acid and the like. Of these, 2,2'-dimethylolpropionic acid is preferred.
- water-based polyurethanes (A) obtained by the above production method a polycarbonate-based water-based polyurethane using a polycarbonate polyol as a raw material is preferable because of high coating film strength.
- the said water-based polyurethane (A) can be used individually or can be used together 2 or more types.
- the aqueous polyester (B) may be any polyester that dissolves or disperses in an aqueous medium, and is preferably a water-dispersed polyester resin.
- the water-dispersed polyester resin is obtained by imparting water dispersibility to the polyester resin by introducing a hydrophilic group. Examples of commercially available products include the “Vylonal” series of Toyobo Co., Ltd.
- the number average molecular weight (Mn) of the aqueous polyester (B) is preferably in the range of 5,000 to 500,000, more preferably in the range of 10,000 to 300,000, and in the range of 150,000 to 250,000. Further preferred.
- the glass transition temperature (hereinafter abbreviated as “Tg”) of the aqueous polyester is preferably in the range of ⁇ 30 to 130 ° C., more preferably in the range of ⁇ 20 to 100 ° C., and in the range of ⁇ 10 to 80 ° C. Further preferred.
- the water-based polyester (B) can be used alone or in combination of two or more.
- the aqueous acrylic resin (C) may be an acrylic resin that dissolves or disperses in an aqueous medium, and is an aqueous solution produced by emulsion polymerization in which an acrylic monomer is used as a main raw material and polymerization is performed in an aqueous medium using an emulsifier.
- examples include acrylic resin emulsions, self-emulsifying water-based acrylic resins that have been polymerized in an organic solvent using an acrylic monomer having a carboxyl group, then neutralized with a base, and dispersed in an aqueous medium. It is done.
- aqueous acrylic resin (C) various modified acrylic resins such as a urethane-modified aqueous acrylic resin modified with aqueous polyurethane and an aqueous silicon acrylic resin modified with a silane compound can also be used.
- the aqueous acrylic resin (C) can be used alone or in combination of two or more.
- the blending amount of the aqueous polyurethane (A), the aqueous polyester (B) and the aqueous acrylic resin (C) improves the matte feeling and makes the coating film strength sufficient. Therefore, 100 parts by mass of the aqueous polyurethane (A)
- the total of the aqueous polyester (B) and the aqueous acrylic resin (C) is preferably in the range of 5 to 60 parts by mass, more preferably in the range of 10 to 50 parts by mass, and still more preferably in the range of 20 to 45 parts by mass. .
- Examples of the matting agent (D) include silica particles, organic beads, calcium carbonate, magnesium carbonate, barium carbonate, talc, aluminum hydroxide, calcium sulfate, kaolin, mica, asbestos, mica, calcium silicate, alumina silicate, and the like. Is mentioned.
- silica particles examples include dry silica and wet silica.
- dry silica is preferred because of its high scattering effect and wide gloss value adjustment range.
- the dry-type silica surface-modified with the organic compound is more preferable.
- the average particle diameter of these silica particles is preferably in the range of 2 to 14 ⁇ m, more preferably in the range of 3 to 12 ⁇ m.
- the total resin content of the aqueous polyurethane (A), the aqueous polyester (B) and the aqueous acrylic resin (C) is 100 mass.
- the range is preferably from 0.1 to 40 parts by weight, more preferably from 10 to 30 parts by weight, based on parts.
- organic beads examples include acrylic beads, urethane beads, silicon beads, and olefin beads.
- the above matting agent (D) can be used alone or in combination of two or more.
- crosslinking agent (E) examples include oxazoline, carbodiimide, polyisocyanate, blocked isocyanate, epoxy, polysiloxane, aziridine, alkylated melamine, and other urea resin-based crosslinking agents, hydrazide-based crosslinking agents, and the like.
- carbodiimide is preferable from the viewpoint of crosslinking performance and safety.
- these crosslinking agents (E) can be used alone or in combination of two or more.
- the said crosslinking agent (E) As a usage-amount of the said crosslinking agent (E), it is 0 with respect to 100 mass parts of total resin parts of the said water-based polyurethane (A), water-based polyester (B), and water-based acrylic resin (C) from a viewpoint of coating film strength.
- the range of 5 to 30 parts by mass is preferable, and the range of 2 to 25 parts by mass is more preferable.
- the aqueous surface treating agent of the present invention includes polyolefin wax (F). Can be blended.
- the melting range is 140 to 180 ° C.
- Those having a temperature of 145 to 175 ° C are more preferable, and those having a temperature of 150 to 170 ° C are more preferable.
- Examples of such polyolefin wax (F) include polyethylene wax and polypropylene wax. These polyolefin waxes (F) can be used alone or in combination of two or more. In the present invention, when two or more types of polyolefin waxes (F) are used in combination, the melting range is the melting range of the mixture. The melting range is measured in accordance with JIS test method K0064-1992.
- polyolefin waxes those mainly composed of polypropylene wax are preferred because solvent traces can be reduced.
- the said water-based polyurethane (A), water-based polyester (B), and water-based acrylic resin (C) The range of 0.1 to 20 parts by mass is preferable with respect to 100 parts by mass of the total resin content, and the range of 3 to 15 parts by mass is more preferable.
- the aqueous surface treatment agent of the present invention includes various surfactants, antifoaming agents, leveling agents, viscoelasticity adjusting agents, antifoaming agents, wetting agents, dispersing agents, Preservatives, film formers, plasticizers, penetrants, fragrances, bactericides, acaricides, fungicides, UV absorbers, antioxidants, antistatic agents, flame retardants, dyes, pigments (eg, titanium white, Bengala, phthalocyanine, carbon black, permanent yellow, etc.) may be added.
- the article of the present invention has a coating film of the aqueous surface treating agent of the present invention.
- articles include housings for home appliances (refrigerators, washing machines, air conditioners, televisions, etc.), housings for electronic devices (computers, mobile phones, smartphones, etc.), musical instruments (pianos, electric tones, electronic musical instruments, etc.)
- Materials Interior materials for automobiles or railway vehicles (instrument panels, door trims, headlinings, tonneau covers, etc.), building materials or furniture materials (wallpaper, decorative sheets for plywood, decorative sheets for steel plates, leather for chairs, etc.), Examples include plastic molded products such as packaging materials (such as wrapping films); wood materials (plywood, laminated materials, single-layer laminated materials, etc.); and ceramic materials (interior tiles, bricks, etc.).
- the aqueous surface treating agent of the present invention can be suitably used for plastic molded products, and among these plastic molded products, it is preferable to use them for TPO leather and TPO sheets.
- Example 1 Aqueous polyurethane (“Hydran WLS-210” manufactured by DIC Corporation, polycarbonate-based aqueous polyurethane, nonvolatile content: 35% by mass) 49 parts by mass (17.15 parts by mass as aqueous polyurethane), Aqueous polyester (“Vilonal” manufactured by Toyobo Co., Ltd.) MD-1100 ”, water-dispersed polyester resin, number average molecular weight: 20,000, Tg: 40 ° C., nonvolatile content: 30% by mass) 15.3 parts by mass (4.59 parts by mass as aqueous polyester), cross-linking agent (Nisshinbo Chemical Co., Ltd.) "Carbodilite E-04” manufactured by Co., Ltd., 4.2 parts by mass of carbodiimide-based crosslinking agent, matting agent ("ACEMATT 3300” manufactured by Evonik Degussa), silica particles produced by a dry method and organically treated on the surface, average particle diameter : 9.5
- aqueous surface treating agent (1) obtained above was converted into a bar coater No. 14 was applied onto a TPO sheet (thickness 0.4 mm) and then dried at 120 ° C. for 1 minute to obtain a sample for evaluation.
- Gloss meter (“GM-268Plus” manufactured by Konica Minolta Optics Co., Ltd.) was used for the 60 ° gloss value before and after vacuum forming on the coating surface of the aqueous surface treatment agent of the evaluation sample obtained above. And measured.
- the change rate of the 60 ° gloss value of the coating film surface of the aqueous surface treatment agent before and after the vacuum molding measured above was calculated, and the molding processability was evaluated according to the following criteria.
- the change rate of the 60 ° gloss value was calculated by the following formula (1).
- Example 2 The water-based polyester used in Example 1 was water-based polyester (Toyobo Co., Ltd. “Vironal MD-1200”, water-dispersed polyester resin, number average molecular weight: 15,000, Tg: 67 ° C., nonvolatile content: 34% by mass) Except that the amount of ion-exchanged water was changed to 26.8 parts by mass to 13.5 parts by mass (4.59 parts by mass as aqueous polyester), the aqueous surface treating agent (2) was added. Obtained.
- Example 3 The water-based polyester used in Example 1 was water-based polyester (“Vironal MD-1480” manufactured by Toyobo Co., Ltd., water-dispersed polyester resin, number average molecular weight: 15,000, Tg: 20 ° C., nonvolatile content: 25% by mass) Except that the amount of ion-exchanged water was changed to 21.9 parts by mass to 18.4 parts by mass (4.6 parts by mass as aqueous polyester), the aqueous surface treating agent (3) was added. Obtained.
- Example 4 The water-based polyester used in Example 1 was water-based polyester (“Vyronal MD-1930” manufactured by Toyobo Co., Ltd., water-dispersed polyester resin, number average molecular weight: 20,000, Tg: ⁇ 10 ° C., nonvolatile content: 31% by mass).
- the surface treatment agent (4) was obtained in the same manner as in Example 1 except that the amount of ion-exchanged water was changed to 25.5 parts by weight to 0.8 parts by weight (4.59 parts by weight as aqueous polyester). It was.
- Example 5 15.3 parts by weight of aqueous polyester used in Example 1 (water-soluble acrylic resin (“Cirrus PC-751” manufactured by Toagosei Co., Ltd., aqueous silicone acrylic resin, nonvolatile content: 45 mass%)) (7.02 as aqueous acrylic resin)
- aqueous surface treating agent (5) was obtained in the same manner as in Example 1 except that the amount of ion-exchanged water was changed to 25 parts by mass.
- Example 6 10.2 parts by weight (4.59 as an aqueous acrylic resin) of the aqueous polyester used in Example 1 was an aqueous acrylic resin (“Boncoat HY-364” manufactured by DIC Corporation, urethane-modified aqueous acrylic resin, nonvolatile content: 45% by mass).
- the aqueous surface treating agent (6) was obtained in the same manner as in Example 1 except that the amount of ion-exchanged water was changed to 30.1 parts by mass.
- Example 7 The aqueous polyester used in Example 1 was 9.2 parts by mass (4.6 mass as an aqueous acrylic resin) based on an aqueous acrylic resin (“Boncoat VF-1040” manufactured by DIC Corporation, aqueous acrylic resin emulsion, nonvolatile content: 50 mass%). Part) was carried out in the same manner as in Example 1 except that the amount of ion-exchanged water was changed to 31.1 parts by mass to obtain an aqueous surface treating agent (7).
- Aqueous polyurethane (DIC Corporation “Hydran WLS-210”, polycarbonate-based aqueous polyurethane, nonvolatile content: 35% by mass) 60.9 parts by mass (21.3 parts by mass as aqueous polyurethane), crosslinking agent (Nisshinbo Chemical Co., Ltd.) “Carbodilite E-04”, 4.2 parts by weight of carbodiimide-based crosslinking agent, matting agent (“ACEMATT 3300” manufactured by Evonik Degussa), silica particles produced by a dry method and organically treated on the surface, average particle size: 9.
- aqueous surface treating agents (2) to (7) and (R1) obtained in the above Examples 2 to 7 and Comparative Example 1 were carried out in the same manner as in Example 1, and the measurement of 60 ° gloss value and moldability were performed. Evaluation was performed.
- Table 1 shows the composition of the aqueous surface treating agents (1) to (7) and (R1) obtained in Examples 1 to 7 and Comparative Example 1 above, measurement of 60 ° gloss value, and evaluation results of moldability. Show.
- the aqueous surface treatment agents (1) to (7) of Examples 1 to 7 which are the aqueous surface treatment agents of the present invention have a change rate of 60% gloss value of 57% or less. It was found that there was little change in mat feeling on the surface of the coating film, and the moldability was good even when the molding process with stretching was performed.
- Comparative Example 1 is an example in which the aqueous polyester (B) or the aqueous acrylic resin (C) used in combination with the aqueous polyurethane (A) is not blended in the present invention, but the change rate of the 60 ° gloss value is 711%. It was found that the change was very large and the molding processability was insufficient.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Laminated Bodies (AREA)
Abstract
Description
水性ポリウレタン(DIC株式会社製「ハイドラン WLS-210」、ポリカーボネート系水性ポリウレタン、不揮発分:35質量%)49質量部(水性ポリウレタンとして17.15質量部)、水性ポリエステル(東洋紡績株式会社製「バイロナール MD-1100」、水分散ポリエステル樹脂、数平均分子量:2万、Tg:40℃、不揮発分:30質量%)15.3質量部(水性ポリエステルとして4.59質量部)、架橋剤(日清紡ケミカル株式会社製「カルボジライト E-04」、カルボジイミド系架橋剤)4.2質量部、マット剤(エボニックデグサ社製「ACEMATT 3300」、乾式法で製造され表面を有機処理されたシリカ粒子、平均粒子径:9.5μm)4質量部、ポリプロピレンワックス(Micro Powders社製「MICROMATTE 1213UVW」;溶融範囲150~156℃)1.4質量部、ノニオン系界面活性剤(第一工業製薬株式会社製「ノイゲン EA-157」)0.1質量部、フッ素系界面活性剤(DIC株式会社製「メガファック F-444」)0.1質量部、粘弾性調整剤(サンノプコ株式会社製「SNシックナー 612NC」)0.9質量部及びイオン交換水25質量部を均一に混合して、水性表面処理剤(1)を得た。
上記で得られた水性表面処理剤(1)をバーコーターNo.14を用いてTPOシート(厚さ0.4mm)上に塗工した後、120℃で1分間乾燥して評価用サンプルを得た。
上記で得られた評価用サンプルを真空成形機(成光産業株式会社製「真空成形機 フォーミング300X」)を用いて、面積比で350%になるように真空成形を行い、真空成形品を得た。
上記で得られた評価用サンプルの水性表面処理剤の塗膜表面について、真空成形前及び真空成形後の60°光沢値を、それぞれ光沢計(コニカミノルタオプティクス株式会社製「GM-268Plus」)を用いて測定した。
上記で測定した真空成形前後の水性表面処理剤の塗膜表面の60°光沢値の変化率を算出し、下記の基準にしたがって成形加工性を評価した。なお、60°光沢値の変化率は、下記式(1)により算出した。
A:変化率が50%未満である。
B:変化率が50%以上100%未満である。
C:変化率が100%以上である。
実施例1で用いた水性ポリエステルを水性ポリエステル(東洋紡績株式会社製「バイロナール MD-1200」、水分散ポリエステル樹脂、数平均分子量:1.5万、Tg:67℃、不揮発分:34質量%)13.5質量部(水性ポリエステルとして4.59質量部)に、イオン交換水の配合量を26.8質量部に変更した以外は実施例1と同様に行い、水性表面処理剤(2)を得た。
実施例1で用いた水性ポリエステルを水性ポリエステル(東洋紡績株式会社製「バイロナール MD-1480」、水分散ポリエステル樹脂、数平均分子量:1.5万、Tg:20℃、不揮発分:25質量%)18.4質量部(水性ポリエステルとして4.6質量部)に、イオン交換水の配合量を21.9質量部に変更した以外は実施例1と同様に行い、水性表面処理剤(3)を得た。
実施例1で用いた水性ポリエステルを水性ポリエステル(東洋紡績株式会社製「バイロナール MD-1930」、水分散ポリエステル樹脂、数平均分子量:2万、Tg:-10℃、不揮発分:31質量%)14.8質量部(水性ポリエステルとして4.59質量部)に、イオン交換水の配合量を25.5質量部に変更した以外は実施例1と同様に行い、水性表面処理剤(4)を得た。
実施例1で用いた水性ポリエステルを水性アクリル樹脂(東亞合成株式会社製「シーラス PC-751」、水性シリコンアクリル樹脂、不揮発分:45質量%)15.3質量部(水性アクリル樹脂として7.02質量部)に、イオン交換水の配合量を25質量部に変更した以外は実施例1と同様に行い、水性表面処理剤(5)を得た。
実施例1で用いた水性ポリエステルを水性アクリル樹脂(DIC株式会社製「ボンコート HY-364」、ウレタン変性水性アクリル樹脂、不揮発分:45質量%)10.2質量部(水性アクリル樹脂として4.59質量部)に、イオン交換水の配合量を30.1質量部に変更した以外は実施例1と同様に行い、水性表面処理剤(6)を得た。
実施例1で用いた水性ポリエステルを水性アクリル樹脂(DIC株式会社製「ボンコート VF-1040」、水性アクリル樹脂エマルジョン、不揮発分:50質量%)9.2質量部(水性アクリル樹脂として4.6質量部)に、イオン交換水の配合量を31.1質量部に変更した以外は実施例1と同様に行い、水性表面処理剤(7)を得た。
水性ポリウレタン(DIC株式会社製「ハイドラン WLS-210」、ポリカーボネート系水性ポリウレタン、不揮発分:35質量%)60.9質量部(水性ポリウレタンとして21.3質量部)、架橋剤(日清紡ケミカル株式会社製「カルボジライト E-04」、カルボジイミド系架橋剤)4.2質量部、マット剤(エボニックデグサ社製「ACEMATT 3300」、乾式法で製造され表面を有機処理されたシリカ粒子、平均粒子径:9.5μm)4質量部、ポリプロピレンワックス(Micro Powders社製「MICROMATTE 1213UVW」;溶融範囲150~156℃)1.4質量部、ノニオン系界面活性剤(第一工業製薬株式会社製「ノイゲン EA-157」)0.1質量部、フッ素系界面活性剤(DIC株式会社製「メガファック F-444」)0.1質量部、粘弾性調整剤(サンノプコ株式会社製「SNシックナー 612NC」)0.9質量部及びイオン交換水28.4質量部を均一に混合して、水性表面処理剤(R1)を得た。
Claims (5)
- 水性ポリウレタン(A)と、水性ポリエステル(B)又は水性アクリル樹脂(C)と、マット剤(D)と、架橋剤(E)とを含有することを特徴とする水性表面処理剤。
- 前記水性ポリウレタン(A)が、ポリカーボネート系水性ポリウレタンである請求項1記載の水性表面処理剤。
- 前記架橋剤(E)が、カルボジイミドである請求項1又は2記載の水性表面処理剤。
- さらに、ポリオレフィンワックス(F)を含有する請求項1~3のいずれか1項記載の水性表面処理剤。
- 請求項1~4のいずれか1項記載の水性表面処理剤の塗膜を有することを特徴とする物品。
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