JP6428033B2 - 積層体 - Google Patents
積層体 Download PDFInfo
- Publication number
- JP6428033B2 JP6428033B2 JP2014161177A JP2014161177A JP6428033B2 JP 6428033 B2 JP6428033 B2 JP 6428033B2 JP 2014161177 A JP2014161177 A JP 2014161177A JP 2014161177 A JP2014161177 A JP 2014161177A JP 6428033 B2 JP6428033 B2 JP 6428033B2
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- JP
- Japan
- Prior art keywords
- layer
- magnetic
- film
- acid
- laminate
- 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.)
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- 229920000642 polymer Polymers 0.000 claims description 49
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 30
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- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 description 6
- 125000005907 alkyl ester group Chemical group 0.000 description 6
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 6
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- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 239000001361 adipic acid Substances 0.000 description 4
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- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
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- 238000001035 drying Methods 0.000 description 4
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- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 4
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- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 4
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 3
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 3
- WPSWDCBWMRJJED-UHFFFAOYSA-N 4-[2-(4-hydroxyphenyl)propan-2-yl]phenol;oxirane Chemical compound C1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 WPSWDCBWMRJJED-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 3
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- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 3
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- 125000000217 alkyl group Chemical group 0.000 description 3
- ARCGXLSVLAOJQL-UHFFFAOYSA-N anhydrous trimellitic acid Natural products OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 3
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- 239000003431 cross linking reagent Substances 0.000 description 3
- QYQADNCHXSEGJT-UHFFFAOYSA-N cyclohexane-1,1-dicarboxylate;hydron Chemical compound OC(=O)C1(C(O)=O)CCCCC1 QYQADNCHXSEGJT-UHFFFAOYSA-N 0.000 description 3
- GWZCCUDJHOGOSO-UHFFFAOYSA-N diphenic acid Chemical compound OC(=O)C1=CC=CC=C1C1=CC=CC=C1C(O)=O GWZCCUDJHOGOSO-UHFFFAOYSA-N 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
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- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 3
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- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 3
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 3
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- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 2
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- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
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- 229940006174 zinc valerate Drugs 0.000 description 1
- MCOGTQGPHPAUJN-UHFFFAOYSA-L zinc;2-hydroxyacetate Chemical compound [Zn+2].OCC([O-])=O.OCC([O-])=O MCOGTQGPHPAUJN-UHFFFAOYSA-L 0.000 description 1
- WDHVIZKSFZNHJB-UHFFFAOYSA-L zinc;butanoate Chemical compound [Zn+2].CCCC([O-])=O.CCCC([O-])=O WDHVIZKSFZNHJB-UHFFFAOYSA-L 0.000 description 1
- JDLYKQWJXAQNNS-UHFFFAOYSA-L zinc;dibenzoate Chemical compound [Zn+2].[O-]C(=O)C1=CC=CC=C1.[O-]C(=O)C1=CC=CC=C1 JDLYKQWJXAQNNS-UHFFFAOYSA-L 0.000 description 1
- PKJOUIVGCFHFTK-UHFFFAOYSA-L zinc;hexanoate Chemical compound [Zn+2].CCCCCC([O-])=O.CCCCCC([O-])=O PKJOUIVGCFHFTK-UHFFFAOYSA-L 0.000 description 1
- BUDAIZWUWHWZPQ-UHFFFAOYSA-L zinc;pentanoate Chemical compound [Zn+2].CCCCC([O-])=O.CCCCC([O-])=O BUDAIZWUWHWZPQ-UHFFFAOYSA-L 0.000 description 1
- XDWXRAYGALQIFG-UHFFFAOYSA-L zinc;propanoate Chemical compound [Zn+2].CCC([O-])=O.CCC([O-])=O XDWXRAYGALQIFG-UHFFFAOYSA-L 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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Description
上記磁性粉末3としては、鉄系粉末や、各種の軟磁性合金等の軟磁性粉末を用いることができ、例えば、磁性ステンレス(Fe−Cr−Al−Si合金)、センダスト(Fe−Si−A1合金)、パーマロイ(Fe−Ni合金)、ケイ素銅(Fe−Cu−Si合金)、Fe−Si合金、Fe−Si―B(−Cu−Nb)合金、Fe−Ni−Cr−Si合金、Fe−Si−Cr合金、Fe−Si−Al−Ni−Cr合金、フェライト等があげられる。これらは単独でもしくは二種以上併せて用いられる。これらの中でも、磁気特性の点からFe−Si−Al合金を好ましく使用できる。
上記バインダー樹脂4は、結晶性ポリエステル樹脂(A)および非晶性ポリエステル樹脂(B)を用いて得られる。なお、上記結晶性ポリエステル樹脂(A)における結晶性とは、示差走査熱量計(DSC)を用いて、窒素雰囲気下で昇温速度10℃/分で測定したときに、融点と結晶化融解熱が測定できる特性を備えることをいい、結晶性ポリエステル樹脂(A)とはその特性を備えたポリエステル樹脂である。また、上記非晶性ポリエステル樹脂(B)における非晶性とは、上記と同様の測定において、融点と結晶化融解熱が測定されない特性を備えることをいい、非晶性ポリエステル樹脂(B)とはその特性を備えたポリエステル樹脂である。
本発明の積層体における高分子化合物製フィルム層1は、加圧成形時に磁性体層2がプレスロールから剥離できなくなるのを防止すると共に、製品への実装時に表面の絶縁性を確保するためのものであり、かかる高分子化合物製フィルム層1の材料となる高分子化合物製フィルムとしては、例えば、ポリエステル系フィルム、ポリウレタン系フィルム、ポリイミド系フィルム、ポリカーボネート系フィルム、ポリオレフィン系フィルム、ポリ塩化ビニル系フィルム、ポリ塩化ビニリデン系フィルム、ポリビニルアルコールフィルム、ポリスチレンフィルム、ポリアクリロニトリルフィルム、エチレン酢酸ビニル共重合体フィルム、エチレン−ビニルアルコール共重合体フィルム、ポリアミド系フィルム、セロファン、アイオノマーフィルム等があげられる。中でも、コスト等の点から、ポリエステル系フィルムを用いることが好ましく、特にポリエチレンテレフタレート(PET)フィルムを用いることが好ましい。
本発明の積層体の製造方法について説明する。
なお、例中「部」、「%」とあるのは、重量基準を意味する。
<結晶性ポリエステル樹脂(A1)の製造>
撹拌機、精留塔、窒素導入管および真空装置が設けられた反応缶に、テレフタル酸276.2部、イソフタル酸59.2部、アジピン酸52.1部、1,4−ブタンジオール100.7部、1,6−ヘキサンジオール168.4部、シクロヘキサンジメタノール137.0部、触媒としてテトラブチルチタネート0.20部を仕込み、内温240℃まで徐々に温度を上げ、4時間かけてエステル化反応を行なった。その後、内温260℃まで上げ、触媒としてテトラブチルチタネート0.20部仕込み、1hPaまで減圧し、3時間かけて重縮合反応を行なうことにより、結晶性ポリエステル樹脂(A1)を作製した。得られた結晶性ポリエステル樹脂(A1)は、前述のとおり示差走査熱量計(DSC)にて測定した結果、融点が115℃、結晶化融解熱が9J/g、数平均分子量が17,000(末端基法による測定)、ガラス転移温度19℃であった。
撹拌機、温度計、精留塔、窒素導入管および真空装置が設けられた反応缶に、テレフタル酸176.6部、イソフタル酸156.6部、エチレングリコール97.1部、ビスフェノールAエチレンオキサイド付加物361.3部、触媒としてテトラブチルチタネート0.20部を仕込み、内温240℃まで除々に温度を上げ、4時間かけてエステル化反応を行なった。その後、内温260℃まで上げ、触媒としてテトラブチルチタネート0.20部仕込み、1hPaまで減圧し、3時間かけて重縮合反応を行い、さらに内温240℃まで下げ、イソフタル酸8.3部添加し、解重合を1時間行なうことにより、非晶性ポリエステル樹脂(B1)を作製した。得られた非晶性ポリエステル樹脂(B1)は、前述のとおり示差走査熱量計(DSC)にて測定した結果、融点および結晶化融解熱は測定されなかった。また、数平均分子量は7,000(末端基法による測定)、ガラス転移温度70℃であった。
撹拌機、温度計、精留塔および窒素導入管が設けられた反応缶に、結晶性ポリエステル樹脂(A1)を138部、非晶性ポリエステル樹脂(B1)を92部、トルエン616部、メチルエチルケトン154部を入れ、80℃で5時間かけて樹脂を溶解し、30℃まで冷却し、バインダー樹脂(固形分23%、ガラス転移温度35℃、融点105℃)を得た。
上記バインダー樹脂37.3部、磁性粉末であるセンダスト粉(山陽特殊製鋼社製;商品名「FME3DH」)34.3部、分散剤(楠本化成社;商品名「PW−36」)2.6部、トルエン25.8部を、ポリエチレン製瓶に投入し、ディスパーにて10分間、回転速度500rpmで撹拌し、磁性粉末分散液を得た。
<非晶性ポリエステル樹脂(B1)のみを使用してなる積層体>
分散液として、上記非晶性ポリエステル樹脂(B1)を5.4部、磁性粉末であるセンダスト粉(山陽特殊製鋼社製;商品名「FME3DH」)21.3部、トルエン70.3部、架橋剤としてブロックイソシアネート(日本ポリウレタン社製、商品名「コロネート2507」)3部を用いた以外は、実施例1と同様に行ない、磁性粉末分散液を作製した。
<PETフィルム層無しの磁性体層単層>
磁性粉末分散液を塗工する基材フィルムを、東セロ社製「SP−PET−O1−BU」(厚み25μm)に変え、離型処理面に塗工した以外は実施例1と同様に実施し、積層体を作製した。つぎに、得られた積層体から上記基材フィルムを剥離し、単層からなる磁性体層のみからなるシートを得た。得られた磁性体層単層シートの表面抵抗は104Ω/□と低く、また、磁性体層端部から磁性粉末が脱落する現象が確認され、実用に適さないことは明らかである。
上記実施例1にて作製した積層体の磁性体層のうち、PETフィルムが積層されていない面に、粘着剤層形成材料として日本合成化学工業社製「コーポニールN−4510E」を用い、これを塗工(塗工方法:固形分45%になるように酢酸エチルで希釈し、アプリケーターを用いたキャスト塗工)し、80℃で10分間乾燥することにより粘着剤層を形成してなる、高品質の粘着剤層付の積層体を作製した。
2 磁性体層
3 磁性粉末
4 バインダー樹脂
Claims (6)
- 磁性粉末およびバインダー樹脂を含有する形成材料からなる磁性体層、および、高分子化合物製フィルム層の積層構造を有する積層体であって、
上記バインダー樹脂が、結晶性ポリエステル樹脂(A)および非晶性ポリエステル樹脂(B)を含有し、
磁性粉末が、鉄系粉末および軟磁性粉末の少なくとも一方であることを特徴とする積層体。 - 結晶性ポリエステル樹脂(A)および非晶性ポリエステル樹脂(B)の含有割合〔(A)/(B)〕が、重量比で、(A)/(B)=95/5〜40/60であることを特徴とする請求項1記載の積層体。
- 磁性体層の厚み(x)と高分子化合物製フィルム層の厚み(y)の比(x:y)が、x:y=0.1〜100:1であることを特徴とする請求項1または2記載の積層体。
- 高分子化合物製フィルムが、ポリエチレンテレフタレートフィルムであることを特徴とする請求項1〜3のいずれか一項に記載の積層体。
- 磁性粉末とバインダー樹脂の含有割合が、重量比で、磁性粉末:バインダー樹脂=1:1〜10:1であることを特徴とする請求項1〜4のいずれか一項に記載の積層体。
- 磁性体層の高分子化合物製フィルムが積層されていない面に粘着剤層が形成されてなることを特徴とする請求項1〜5のいずれか一項に記載の積層体。
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