WO2009113216A1 - 電子部品加工用粘着テープ - Google Patents
電子部品加工用粘着テープ Download PDFInfo
- Publication number
- WO2009113216A1 WO2009113216A1 PCT/JP2008/072406 JP2008072406W WO2009113216A1 WO 2009113216 A1 WO2009113216 A1 WO 2009113216A1 JP 2008072406 W JP2008072406 W JP 2008072406W WO 2009113216 A1 WO2009113216 A1 WO 2009113216A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- sensitive adhesive
- adhesive tape
- antistatic
- acrylic copolymer
- Prior art date
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 239000010410 layer Substances 0.000 claims abstract description 83
- 229920006243 acrylic copolymer Polymers 0.000 claims abstract description 34
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 31
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims abstract description 19
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000002390 adhesive tape Substances 0.000 claims description 36
- 238000012545 processing Methods 0.000 claims description 30
- 229920001940 conductive polymer Polymers 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 8
- 229920000128 polypyrrole Polymers 0.000 claims description 7
- 229920000547 conjugated polymer Polymers 0.000 claims description 6
- 229920000123 polythiophene Polymers 0.000 claims description 5
- 230000005855 radiation Effects 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 239000010949 copper Substances 0.000 abstract description 6
- 239000010408 film Substances 0.000 description 42
- 230000001070 adhesive effect Effects 0.000 description 30
- 239000000853 adhesive Substances 0.000 description 29
- 238000000034 method Methods 0.000 description 27
- 239000011248 coating agent Substances 0.000 description 17
- 238000000576 coating method Methods 0.000 description 17
- 230000007797 corrosion Effects 0.000 description 17
- 238000005260 corrosion Methods 0.000 description 17
- 239000003795 chemical substances by application Substances 0.000 description 16
- 238000001723 curing Methods 0.000 description 16
- -1 halogen ions Chemical class 0.000 description 14
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- YLLIGHVCTUPGEH-UHFFFAOYSA-M potassium;ethanol;hydroxide Chemical compound [OH-].[K+].CCO YLLIGHVCTUPGEH-UHFFFAOYSA-M 0.000 description 9
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
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- 230000000379 polymerizing effect Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
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- 238000004448 titration Methods 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- VVBLNCFGVYUYGU-UHFFFAOYSA-N 4,4'-Bis(dimethylamino)benzophenone Chemical compound C1=CC(N(C)C)=CC=C1C(=O)C1=CC=C(N(C)C)C=C1 VVBLNCFGVYUYGU-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical group N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
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- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 125000004018 acid anhydride group Chemical group 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
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- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
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- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 239000003505 polymerization initiator Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
- ZAMZCSIXTWIEDY-UHFFFAOYSA-N (2-propylphenyl)methanol Chemical compound CCCC1=CC=CC=C1CO ZAMZCSIXTWIEDY-UHFFFAOYSA-N 0.000 description 1
- 229920003067 (meth)acrylic acid ester copolymer Polymers 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- GJZFGDYLJLCGHT-UHFFFAOYSA-N 1,2-diethylthioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=C(CC)C(CC)=CC=C3SC2=C1 GJZFGDYLJLCGHT-UHFFFAOYSA-N 0.000 description 1
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- HNSDLXPSAYFUHK-UHFFFAOYSA-N 1,4-bis(2-ethylhexyl) sulfosuccinate Chemical compound CCCCC(CC)COC(=O)CC(S(O)(=O)=O)C(=O)OCC(CC)CCCC HNSDLXPSAYFUHK-UHFFFAOYSA-N 0.000 description 1
- CTOHEPRICOKHIV-UHFFFAOYSA-N 1-dodecylthioxanthen-9-one Chemical compound S1C2=CC=CC=C2C(=O)C2=C1C=CC=C2CCCCCCCCCCCC CTOHEPRICOKHIV-UHFFFAOYSA-N 0.000 description 1
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
しかしながら、以上のような対策では、十分な帯電防止効果が得られず、生産性が低く、また被着体の保護も十分とはいえない。
(1)基材と、前記基材の片面に、形成された粘着剤層と、を有する電子部品加工用粘着テープであって、前記粘着剤層が、主鎖に対して、少なくとも放射線硬化性炭素-炭素二重結合含有基、水酸基、及びカルボキシル基を含有する基をそれぞれ有するアクリル系共重合体を主成分とし、前記アクリル共重合体の主鎖の放射線硬化性炭素-炭素二重結合含有基の割合が0.5~2.0meq/gで、前記アクリル共重合体の主鎖の水酸基の割合が0.1~60mgKOH/gで、前記アクリル共重合体の主鎖のカルボキシル基の割合が0.5~10mgKOH/gで、前記アクリル共重合体のゲル分率が60%以上であることを特徴とする、金属またはアルミナを含む電子部品を貼着する電子部品加工用粘着テープ、
(2)前記基材が、両面または片面に形成された帯電防止層を有することを特徴とする(1)項記載の電子部品加工用粘着テープ、
(3)前記帯電防止層が、π電子共役系ポリマー、さらに好ましくはポリピロール系ポリマーまたはポリチオフェン系ポリマーであることを特徴とする(1)項または(2)項記載の電子部品加工用粘着テープ、
(4)前記帯電防止層の厚さが0.001~2.0μmであることを特徴とする(1)項ないし(3)項記載の電子部品加工用粘着テープ、及び
(5)前記粘着剤層の厚さが、1~70μmであることを特徴とする(1)項ないし(4)項記載の電子部品加工用粘着テープ
を提供するものである。
3………基材フィルム
5………帯電防止層
7………粘着剤層
9………剥離ライナー
11………切り込み
13………フレーム
15………粘着テープ
図1は、粘着テープ1の断面の概略図である。基材フィルム3の両面に帯電防止層5が形成され、一方の帯電防止層5の上に粘着剤層7が形成される。粘着剤層7の上には剥離ライナー9が形成される。
粘着剤層7は、主鎖に対して、少なくとも放射線硬化性炭素-炭素二重結合含有基、水酸基及びカルボキシル基を含有する基をそれぞれ有するアクリル系共重合体(以下「アクリル系共重合体(A)」と称する)を主成分とする。アクリル系共重合体(A)はどのようにして製造されたものでもよいが、例えば、(メタ)アクリル酸エステル、ヒドロキシル基含有不飽和化合物、カルボキシル基含有不飽和化合物等からなる共重合体(A1)の炭素鎖を主鎖とし、共重合体(A1)が有する官能基に対して付加反応することが可能な官能基及び炭素-炭素二重結合を有する化合物(A2)を付加反応して得られる。
カルボキシル基含有不飽和化合物の例としては、アクリル酸、メタクリル酸などが挙げられる。
さらに、放射線硬化性粘着剤層7には、必要に応じ副成分として、例えばポリイソシアネート化合物などの硬化剤等を含むことができる。硬化剤の配合量は、主成分であるアクリル系重合体100質量部に対して0.5~10質量部が好ましい。
なお、以下%とあるものは質量%を示す。
粘着剤α1は、放射線硬化性炭素-炭素二重結合含有基、水酸基、及びカルボキシル基を含有する基をそれぞれ有するアクリル系共重合体であって、水酸基価が34mgKOH/g、酸価が6.6mg/KOH、炭素二重結合量0.9meq/gである。粘着剤α1の100部に硬化剤を1部、光重合開始剤を5部の割合で配合し、粘着剤塗布液を調整した。調整した粘着剤塗布液を、シリコン離型処理したポリエチレンテレフタラートフィルムに所望の厚さで塗工して基材フィルムと張り合わせて粘着テープを作製した。
α2は、α1と同様に放射線硬化性炭素-炭素二重結合含有基、水酸基、及びカルボキシル基を含有する基をそれぞれ有するアクリル系共重合体であるが、水酸基価が56mgKOH/g、酸価が0.7mg/KOH、炭素二重結合量0.6meq/gである。粘着剤α2の100部に硬化剤を1部、光重合開始剤を5部の割合で配合し、粘着剤塗布液を調整した。粘着剤α1と同様に塗工し、粘着テープを作製した。
粘着剤β1は、主鎖に放射線硬化性炭素-炭素二重結合を含まないアクリル酸エステルである。を100部、オリゴエステルアクリレートを150部、硬化剤を4.2部、光重合開始剤を5部の割合で配合し、粘着剤塗布液を調整した。粘着剤α1と同様に塗工し、粘着テープを作製した。
厚さ100μmのポリオレフィンフィルムを基材として用いて、この基材の両面に浸漬重合法により厚さ0.05μmのポリピロール系ポリマー層を形成し、帯電防止層を形成した。
粘着剤α1に光重合開始剤および硬化剤を配合し、粘着剤塗布液を調製した。シリコン離型処理したポリエチレンテレフタレートフィルム(厚さ25μm)に調製した粘着剤塗布液をコンマコーターを用いて線速2m/分で塗工し、110℃に設定した温風乾燥炉を通して、帯電防止層を有する基材フィルムと貼り合わせて、乾燥後の塗布厚が10μmである剥離ライナー付きの電子部品加工用粘着テープを作製した。
実施例1と同様に帯電防止層を形成し、粘着剤α2に光重合開始剤及び硬化剤を配合し、実施例1と同様の方法で、乾燥後の粘着剤層の塗布厚が10μmである剥離ライナー付きの電子部品加工用粘着テープを作製した。
〔実施例3〕
実施例1と同様に帯電防止層を形成し、粘着剤α1に光重合開始剤及び硬化剤を配合し、実施例1と同様の方法で、乾燥後の粘着剤層の塗布厚が30μmである剥離ライナー付きの電子部品加工用粘着テープを作製した。
〔実施例4〕
厚さ100μmのポリオレフィンフィルムに、ポリチオフェン系の導電性ポリマーをグラビアコーターにて膜厚0.5μmになるように塗工を行い、帯電防止層を形成した。粘着剤α1に光重合開始剤及び硬化剤を配合し、実施例1と同様の方法で、乾燥後の粘着剤層の塗布厚が30μmである剥離ライナー付きの電子部品加工用粘着テープを作製した。
〔比較例1〕
実施例1と同様に帯電防止層を形成し、粘着剤β1にオリゴマー、光重合開始剤及び硬化剤を配合し、実施例1と同様の方法で、乾燥後の粘着剤層の塗布厚が30μmである剥離ライナー付きの電子部品加工用粘着テープを作製した。
〔比較例2〕
厚さ100μmのポリオレフィンフィルムに、4級アンモニウム塩系の界面活性剤をグラビアコーターにて膜厚1.0μm厚になるように塗工を行い、帯電防止層を形成した。粘着剤β1にオリゴマー、光重合開始剤及び硬化剤を配合し、実施例1と同様の方法で、乾燥後の粘着剤層の塗布厚が30μmである剥離ライナー付きの電子部品加工用粘着テープを作製した。
〔比較例3〕
厚さ100μmのポリオレフィンフィルムに、4級アンモニウム塩系の界面活性剤をグラビアコーターにて膜厚1.0μm厚になるように塗工を行い、帯電防止層を形成した。粘着剤α2に光重合開始剤及び硬化剤を配合し、実施例1と同様の方法で、乾燥後の粘着剤層の塗布厚が30μmである剥離ライナー付きの電子部品加工用粘着テープを作製した。
〔比較例4〕
厚さ100μmのポリオレフィンフィルムに、ホウ素-窒素コンプレックス系の帯電防止剤をグラビアコーターにて膜厚5.0μm厚になるように塗工を行い、帯電防止層を形成した。粘着剤β1に光重合開始剤及び硬化剤を配合し、実施例1と同様の方法で、乾燥後の粘着剤層の塗布厚が30μmである剥離ライナー付きの電子部品加工用粘着テープを作製した。
上記方法で得られた粘着テープの粘着剤に関して、酸価と水酸基価の測定を行った。
(a)試薬
・ブロムチモールブルー指示薬
・0.01N水酸化カリウム-エタノール溶液
・アセトン試薬1級
(b)操作
約10gの試料を正確に三角フラスコに秤り取り、アセトン50mlに溶解し、ブロムチモールブルー指示薬を3~4滴加える。これを0.01N水酸化カリウム-エタノール溶液で滴定する。
(c)計算
次式によって酸価を求める。
V:0.01N水酸化カリウム-エタノール溶液の滴定量(ml)
f:0.01N水酸化カリウム-エタノール溶液のファクター
S:試料採取量
(a)試薬
・アセチル化試薬(無水酢酸-ピリジン)
・N/2水酸化カリウム-エタノール溶液
(b)操作
試料をアセチル化試薬でアセチル化した後、過剰の酢酸をN/2水酸化カリウム-エタノール溶液で滴定する。
(c)計算
次式によって水酸基価を求める。
VB:空試験のN/2水酸化カリウム-エタノール溶液の滴定量(ml)
F :N/2水酸化カリウム-エタノール溶液のファクター
S :試料採取量(g)
AV:試料の酸価(mgKOH/g)
上記の方法で得られた粘着テープに関して(1)表面固有抵抗(2)帯電防止層-粘着剤層間の密着性の測定、(3)ディップ試験による腐食の確認、及び(4)イオン性不純物量の測定を行った。
JIS K6911に準拠して、表面固有抵抗測定計(株式会社アドバンテスト製、R-8740)を用いて測定した。
密着性の試験方法を、図2を用いて説明する。まず、図2(a)に示すとおり、フレーム13内に粘着テープ1を貼付し、ダイサーにて碁盤の目状に粘着剤層7の厚さ+10μmまで切り込みを入れる。各碁盤の目の大きさは1cm×1cmとする。完全に乾燥させた後、図2(b)に示すように、2kgの貼合ローラーで粘着力約20N/25mmの粘着テープ15を貼り合わせる。その後UV照射を行い再び1時間放置する。今回の実験での照射量は500mJ/m2とした。
その後、粘着テープ15と粘着テープ1とが貼合したものを、幅25mm、長さ10cmにカットし、図2(c)に示すように、粘着テープ1から粘着テープ15を角度180°、速度1000mm/minで引き剥がす。粘着テープ1から粘着テープ15に剥がれた粘着剤層7の個数を数えることにより、帯電防止層5からの粘着剤層7の脱落を評価した。全く脱落の無いものを0%とし、すべて脱落したものを100%とする。
粘着テープ約1gを試料としてサンプリングし剥離ライナーを剥がす。剥離ライナーが剥がされた試料と銅、アルミナ、ニッケル合金から構成される磁気ヘッドと共に純水50mlを加えた容器に浸す。その後、60℃で1時間加熱した後、溶液中から磁気ヘッドを取り出し、FE-SEM(電界放射型走査型電子顕微鏡)にて磁気ヘッドの腐食を画像にて確認する。確認した磁気ヘッドの個数は何れも30個ずつであり、30個の磁気ヘッドのうち、腐食した個数を表1に記載した。
フィルム約1gを試料としてサンプリングした後、純水50mlを加えて100℃に加熱する。抽出された溶液中に含まれる不純物イオン量をイオンクロマトグラフDX-120(日本ダイオネクス社製)を用いて測定を行った。
実施例、比較例の結果を表1にまとめて示す。
まず、帯電防止層-粘着剤層間の密着性については、帯電防止剤が導電性ポリマー以外である比較例2および3が50%程度剥がれてしまっているのに対し、導電性ポリマーを用いた実施例1~4、比較例1では全く剥がれは見られなかったが、粘着材の重合方法が異なる比較例1では、磁気ヘッドに腐食が見られた。
帯電防止性能の指標の一つである表面固有抵抗については、実施例1と実施例3を比較すると、表面固有抵抗値は、粘着剤厚みが薄い実施例1のほうが低かった。また、粘着剤厚みが薄い方がUV照射後の値は優位な結果となった。
腐食試験では、実施例1~4においては、腐食が見られない、またはほとんど見られない結果であるのに対し、比較例1~4については多くの磁気ヘッドが腐食してしまう結果となった。
実施例1~4は、密着性に優れ、磁気ヘッドを腐食しない点が好ましい。また、実施例1は、密着性に優れ、磁気ヘッドを腐食せず、加えて表面固有抵抗値が低いため、さらに好ましい
Claims (7)
- 基材と、
前記基材の片面に、形成された粘着剤層と、
を有する電子部品加工用粘着テープであって、
前記粘着剤層が、主鎖に対して、少なくとも放射線硬化性炭素-炭素二重結合含有基、水酸基、及びカルボキシル基を含有する基をそれぞれ有するアクリル系共重合体を主成分とし、
前記アクリル共重合体の主鎖の放射線硬化性炭素-炭素二重結合含有基の割合が0.5~2.0meq/gで、
前記アクリル共重合体の主鎖の水酸基の割合が0.1~60mgKOH/gで、
前記アクリル共重合体の主鎖のカルボキシル基の割合が0.5~10mgKOH/gで、
前記アクリル共重合体のゲル分率が60%以上であることを特徴とする、
金属またはアルミナを含む電子部品を貼着する電子部品加工用粘着テープ - 前記基材が、両面または片面に形成された帯電防止層を有することを特徴とする請求項1記載の電子部品加工用粘着テープ。
- 前記帯電防止層が、導電性高分子を用いており、π電子共役系ポリマーであることを特徴とする請求項1または2記載の電子部品加工用粘着テープ。
- 前記導電性高分子が、ポリピロール系ポリマーであることを特徴とする請求項3記載の電子部品加工用粘着テープ。
- 前記導電性高分子が、ポリチオフェン系ポリマーであることを特徴とする請求項3記載の電子部品加工用粘着テープ。
- 前記帯電防止層の厚さが0.001~2.0μmであることを特徴とする請求項2ないし5記載の電子部品加工用粘着テープ。
- 前記粘着剤層の厚さが、1~70μmであることを特徴とする請求項1ないし6記載の電子部品加工用粘着テープ。
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JP2019161031A (ja) * | 2018-03-14 | 2019-09-19 | マクセルホールディングス株式会社 | バックグラインド用粘着テープ |
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US20110014443A1 (en) | 2011-01-20 |
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