JP5619085B2 - 離型用シート - Google Patents
離型用シート Download PDFInfo
- Publication number
- JP5619085B2 JP5619085B2 JP2012162189A JP2012162189A JP5619085B2 JP 5619085 B2 JP5619085 B2 JP 5619085B2 JP 2012162189 A JP2012162189 A JP 2012162189A JP 2012162189 A JP2012162189 A JP 2012162189A JP 5619085 B2 JP5619085 B2 JP 5619085B2
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- Prior art keywords
- release sheet
- acid
- resin
- mass
- resin layer
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
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Description
1H−NMR分析装置(バリアン社製 GEMINI2000/300、300MHz)により求めた。オルトジクロロベンゼン(d4)を溶媒とし、120℃で測定した。
樹脂10mgをサンプルとし、DSC(示差走査熱量測定)装置(パーキンエルマー社製 DSC7)を用いて、昇温速度10℃/分の条件で測定を行い、得られた昇温曲線から融点を求めた。
JIS K7206に記載の方法で測定した。
JIS K6730記載(190℃、2160g荷重)の方法で測定した。
島津製作所社製、ガスクロマトグラフGC−8A[FID検出器使用、キャリアーガス:窒素、カラム充填物質(ジーエルサイエンス社製):PEG−HT(5%)−Uniport HP(60/80メッシュ)、カラムサイズ:直径3mm×3m、試料投入温度(インジェクション温度):150℃、カラム温度:60℃、内部標準物質:n-ブタノール]を用い、水性分散体または水性分散体を水で希釈したものを直接装置内に投入して、有機溶剤の含有率を求めた。検出限界は0.01質量%であった。
液状物を適量秤量し、これを150℃で残存物(固形分)の質量が恒量に達するまで加熱することで、固形分濃度を求めた。
日機装社製、マイクロトラック粒度分布計UPA150(MODEL No.9340、動的光散乱法)を用い、数平均粒子径を求めた。粒子径算出に用いた樹脂の屈折率は1.57とした。
液状物を基材フィルムにコーティングし、乾燥して樹脂層を積層したフィルム(以下「離型フィルム」という)の全体の厚さを接触式膜厚計により測定し、その測定値から基材フィルムの厚さを減じて、求めた。
JIS K6768に記載の測定法に準じて、表面張力が順を追って異なるように調整した標準液(エチレングリコールモノエチルエーテル/ホルムアミド)を処理面に塗布し、樹脂層面をぬらすと判定された標準液の表面張力によって示した。
得られた離型フィルムの樹脂層側に巾50mm、長さ150mmのポリエステル粘着テープ(日東電工社製、No.31B/アクリル系粘着剤)をゴムロールで圧着して、試料とした。試料を、金属板/ゴム板/試料/ゴム板/金属板の形で挟み、2kPa荷重、70℃の雰囲気で20時間放置し、その後30分以上冷却して常温に戻して、剥離強度測定用試料を得た。この剥離強度測定用試料の、粘着テープと離型フィルムとの剥離強度を、25℃の恒温室で、引張試験機(インテスコ社製、精密万能材料試験機、2020型)にて測定した。剥離角度は180度、剥離速度は300mm/分とした。
上記剥離強度試験により離型フィルム表面から剥離した巾50mmのポリエステル粘着テープを、二軸延伸ポリエステル樹脂フィルム(ユニチカ社製「エンブレットPET−12」、厚さ12μm)のコロナ処理面に貼付し、2kPa荷重のもと、室温で20時間放置した。その後、ポリエステル粘着テープとフィルムとの剥離強度(再粘着強度)を、25℃の恒温室で、引張試験機(インテスコ社製、精密万能材料試験機、2020型)にて測定した。剥離角度は180度、剥離速度は300mm/分とした。
JIS−K6911に基づき、アドバンテスト社製のデジタル超高抵抗/微小電流計、R8340を用いて、樹脂層の表面抵抗値を、温度23℃、湿度65%雰囲気下で測定した。
ヒーター付きの密閉できる耐圧1リットル容ガラス容器を備えた撹拌機を用いて、60.0gの「ボンダイン LX−4110」(アルケマ社製、無水マレイン酸変性ポリオレフィン樹脂)、90.0gのIPA(和光純薬社製)、3.0gのTEA(和光純薬社製)および147.0gの蒸留水をガラス容器内に仕込んだ。そして、撹拌翼の回転速度を300rpmとし、系内温度を140〜145℃に保って、30分間撹拌した。その後、水浴につけて、回転速度300rpmのまま撹拌しつつ室温(約25℃)まで冷却した。さらに、300メッシュのステンレス製フィルター(線径0.035mm、平織)で加圧ろ過(空気圧0.2MPa)した。これによって、乳白色の均一な酸変性ポリオレフィン樹脂水性分散体E−1を得た。
酸変性ポリオレフィン樹脂として「ボンダイン HX−8210」(アルケマ社製、無水マレイン酸変性ポリオレフィン樹脂)を用い、水性分散体E−1の製造の際と同様の操作を行って、酸変性ポリオレフィン樹脂水性分散体E−2を得た。
酸変性ポリオレフィン樹脂として「ボンダイン HX−8290」(アルケマ社製、無水マレイン酸変性ポリオレフィン樹脂)を用い、水性分散体E−1の製造の際と同様の操作を行って、酸変性ポリオレフィン樹脂水性分散体E−3を得た。
ヒーター付きの密閉できる耐圧1リットル容ガラス容器を備えた撹拌機を用いて、60.0gの「プリマコール5980I」(ダウケミカル社製、アクリル酸変性ポリオレフィン樹脂)、16.8gのTEA、および223.2gの蒸留水をガラス容器内に仕込んだ。そして、撹拌翼の回転速度を300rpmとし、系内温度を140〜145℃に保って、30分間撹拌した。その後、水浴につけて、回転速度300rpmのまま撹拌しつつ室温(約25℃)まで冷却した。さらに、300メッシュのステンレス製フィルター(線径0.035mm、平織)で加圧ろ過(空気圧0.2MPa)して、微白濁の水性分散体E−4を得た。この際、フィルター上に樹脂は殆ど残っていなかった。
酸変性ポリオレフィン樹脂水性分散体E−1の樹脂固形分100質量部に対して、30質量部のポリビニルアルコール(日本酢ビ・ポバール社製「VC−10」、重合度1,000)を10質量%の水溶液として添加して、液状物を得た。この液状物を、二軸延伸ポリエステル樹脂フィルム(ユニチカ社製「エンブレットPET−12」、厚さ12μm)のコロナ処理面にマイヤーバーを用いてコートした。その後、150℃で90秒間乾燥させて、フィルム上に0.6μmの樹脂層を形成した離型フィルムを得た。
実施例1におけるPVA「VC−10」の添加量を、E−1の樹脂固形分100質量部に対して10質量部(実施例2)、100質量部(実施例3)、300質量部(実施例4)、600質量部(実施例5)、1000質量部(実施例6)となるように、PVA「VC−10」の10質量%水溶液を添加した。それ以外は実施例1と同様の操作を行って、それぞれ離型フィルムを得た。
実施例1における酸変性ポリオレフィン樹脂水性分散体E−1の代わりに、E−2を用いた。それ以外は実施例1と同様の操作を行って、離型フィルムを得た。
実施例1におけるPVA「VC−10」の代わりに、エチレン変性PVA(クラレ社製、「エクセバール HR3010」、重合度1,000)を用いた。それ以外は実施例1と同様の操作を行って、離型フィルムを得た。
二軸延伸ポリエステル樹脂フィルム(ユニチカ社製「エンブレットPET−12」、厚さ12μm)に樹脂層を形成しなかった。そして、同フィルムのコロナ処理面について、剥離強度、再粘着性の評価を行った。
実施例1に比べて、PVAの添加量が、酸変性ポリオレフィン100質量部に対して1100質量部となるように、PVA「VC−10」の10質量%水溶液を添加した。それ以外は実施例1と同様の操作を行って、離型フィルムを得た。
液状物として、酸変性ポリオレフィンを含む水性分散体E−3のみを用いた。換言すると、酸変性ポリオレフィンは含むがポリビニルアルコールを含まない液状物を用いた。それ以外は実施例1と同様の操作を行って、離型フィルムを得た。
液状物として、PVA「VC−10」の10質量%水溶液のみを用いた。換言すると、ポリビニルアルコールは含むが酸変性ポリオレフィンを含まない液状物を用いた。それ以外は実施例1と同様の操作を行って、離型フィルムを得た。
実施例1における水性分散体E−1に代えて、酸変性成分を20質量%含む酸変性ポリオレフィン樹脂水性分散体E−4を用いた。それ以外は実施例1と同様の操作を行って、離型フィルムを得た。
実施例1におけるPVA「VC−10」に代えて、ポリエチレングリコール(ナカライテスク社製、「ポリエチレングリコール ♯20,000」、分子量15,000〜25,000)の10質量%水溶液を、E−1の固形分100質量部に対して固形分量が30質量部となるように添加した。得られた液状物を用いて、実施例1と同様にしてフィルムにコートを行い、離型フィルムを得た。
ユニチカ社製のフッ素コートフィルム「FT」を用い、このフィルムには樹脂層を形成
しなかった。そして、同フィルムについて評価を行った。
Claims (12)
- 基材上に樹脂層が設けられた離型用シートであって、樹脂層が、酸変性成分1〜10質量%の酸変性ポリオレフィン樹脂100質量部と、ビニルエステルの重合体を完全または部分ケン化してなるポリビニルアルコール5〜1000質量部とを含有することを特徴とする離型用シート。
- 樹脂層に含まれる、シリコーン化合物、フッ素化合物、ワックス類および界面活性剤の合計含有量が、酸変性ポリオレフィン樹脂100質量部に対して1質量部以下であることを特徴とする請求項1記載の離型用シート。
- アクリル系粘着剤を用いた粘着材料を樹脂層に貼り付けて測定したときの樹脂層と粘着剤との間の剥離強度が10N/50mm巾以下であることを特徴とする請求項1に記載の離型用シート。
- 基材が、樹脂材料、紙、合成紙、布、金属材料、ガラス材料のいずれかであることを特徴とする請求項1に記載の離型用シート。
- 粘着材料に対して使用されるものであることを特徴とする請求項1に記載の離型用シート。
- 粘着材料が、アクリル系粘着剤、天然ゴム系粘着剤、合成ゴム系粘着剤から選ばれる少なくとも1種類の粘着剤を積層したシートまたはテープであることを特徴とする請求項5に記載の離型用シート。
- プリント配線板、偏光版、位相差板のいずれかに対して使用されるものであることを特徴とする請求項1に記載の離型用シート。
- シート状構造体の成形に使用されるものであることを特徴とする請求項1に記載の離型用シート。
- 基材が帯電防止処理された樹脂材料であることを特徴とする請求項1に記載の離型用シート。
- 表面抵抗値が1010Ω/□以下であるとともに、アクリル系粘着剤を用いた粘着材料を樹脂層に貼り付けて測定したときの樹脂層と粘着剤との間の剥離強度が10N/50mm巾以下であることを特徴とする請求項9に記載の離型用シート。
- 酸変性成分1〜10質量%の酸変性ポリオレフィン樹脂100質量部と、ビニルエステルの重合体を完全または部分ケン化してなるポリビニルアルコール5〜1000質量部とを含有する液状物を、基材上に塗工したのち乾燥することを特徴とする離型用シートの製造方法。
- 含まれる液状媒体が水性媒体である液状物を用いることを特徴とする請求項11に記載の離型用シートの製造方法。
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CN101687405A (zh) | 2010-03-31 |
TW200909208A (en) | 2009-03-01 |
EP2179844B1 (en) | 2012-06-20 |
EP2179844A4 (en) | 2011-01-19 |
JPWO2009025063A1 (ja) | 2010-11-18 |
KR101454712B1 (ko) | 2014-10-27 |
CN101687405B (zh) | 2013-01-02 |
US8535774B2 (en) | 2013-09-17 |
TWI530391B (zh) | 2016-04-21 |
US20110151167A1 (en) | 2011-06-23 |
KR20100043144A (ko) | 2010-04-28 |
EP2179844A1 (en) | 2010-04-28 |
WO2009025063A1 (ja) | 2009-02-26 |
JP5111508B2 (ja) | 2013-01-09 |
JP2012245786A (ja) | 2012-12-13 |
HK1139900A1 (en) | 2010-09-30 |
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