JPWO2018034353A1 - 粘着剤組成物および粘着シート - Google Patents
粘着剤組成物および粘着シート Download PDFInfo
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- JPWO2018034353A1 JPWO2018034353A1 JP2018534444A JP2018534444A JPWO2018034353A1 JP WO2018034353 A1 JPWO2018034353 A1 JP WO2018034353A1 JP 2018534444 A JP2018534444 A JP 2018534444A JP 2018534444 A JP2018534444 A JP 2018534444A JP WO2018034353 A1 JPWO2018034353 A1 JP WO2018034353A1
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- Prior art keywords
- pressure
- sensitive adhesive
- meth
- monomer
- component
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 37
- 239000000178 monomer Substances 0.000 claims abstract description 68
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000012948 isocyanate Substances 0.000 claims abstract description 18
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 18
- 239000013522 chelant Substances 0.000 claims abstract description 17
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 11
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- ZQMHJBXHRFJKOT-UHFFFAOYSA-N methyl 2-[(1-methoxy-2-methyl-1-oxopropan-2-yl)diazenyl]-2-methylpropanoate Chemical compound COC(=O)C(C)(C)N=NC(C)(C)C(=O)OC ZQMHJBXHRFJKOT-UHFFFAOYSA-N 0.000 description 1
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- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- QYZFTMMPKCOTAN-UHFFFAOYSA-N n-[2-(2-hydroxyethylamino)ethyl]-2-[[1-[2-(2-hydroxyethylamino)ethylamino]-2-methyl-1-oxopropan-2-yl]diazenyl]-2-methylpropanamide Chemical compound OCCNCCNC(=O)C(C)(C)N=NC(C)(C)C(=O)NCCNCCO QYZFTMMPKCOTAN-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000006574 non-aromatic ring group Chemical group 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- MZHULIWXRDLGRR-UHFFFAOYSA-N tridecyl 3-(3-oxo-3-tridecoxypropyl)sulfanylpropanoate Chemical compound CCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCC MZHULIWXRDLGRR-UHFFFAOYSA-N 0.000 description 1
- QEDNBHNWMHJNAB-UHFFFAOYSA-N tris(8-methylnonyl) phosphite Chemical compound CC(C)CCCCCCCOP(OCCCCCCCC(C)C)OCCCCCCCC(C)C QEDNBHNWMHJNAB-UHFFFAOYSA-N 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Abstract
Description
下記成分(A)〜(D)を含み、
下記成分(A)は、少なくとも下記(i)〜(iii)の単量体を重合して得られる共重合体であり、
下記成分(B)の含有量が、下記成分(A)に対し、質量比で6%以上であるとともに、下記成分(C)に対し、質量比で5〜400倍であることを特徴とする。
(A)(メタ)アクリレート系共重合体
(B)イソシアネート系架橋剤
(C)金属キレート化合物
(D)酸化防止剤
(i)炭素数4以上のアルキル基を有する(メタ)アクリル酸アルキルエステル単量体
(ii)水酸基を有する共重合可能な単量体
(iii)カルボキシル基を有する共重合可能な単量体
本発明の粘着剤組成物は、前述のとおり、前記成分(A)〜(D)を含む。
成分(A)すなわち(メタ)アクリレート系共重合体(以下「(メタ)アクリレート系共重合体(A)」という場合がある。)は、前述のとおり、少なくとも前記(i)〜(iii)の単量体を重合して得られる共重合体(コポリマー)である。なお、本発明において、(メタ)アクリレートは、アクリレートおよびメタクリレートの少なくとも一方を意味し、(メタ)アクリル酸は、アクリル酸およびメタクリル酸の少なくとも一方を意味する。
(i)/(ii)比=1〜19
(i)/(iii)比=50〜1900
(ii)/(iii)比=5〜1000
本発明の粘着剤組成物中における成分(B)すなわちイソシアネート系架橋剤(以下「イソシアネート系架橋剤(B)」という場合がある。)の使用量(含有率)は、前述のとおり、(メタ)アクリレート系共重合体(A)に対し、質量比で6%以上である。イソシアネート系架橋剤(B)の使用量が6%以上であることにより、例えば、良好な非汚染性が得られやすい。また、イソシアネート系架橋剤(B)の使用量の上限値は、特に限定されないが、例えば、前述のとおり、(メタ)アクリレート系共重合体(A)に対し、質量比で40%以下である。イソシアネート系架橋剤(B)の使用量が40%以下であれば、例えば、良好な基材密着性が得られやすく、また、例えば、浮き・剥がれが発生しにくい。イソシアネート系架橋剤(B)の使用量は、(メタ)アクリレート系共重合体(A)に対し、例えば、質量比で10〜40%または15〜25%であっても良い。
本発明の粘着剤組成物中における成分(C)すなわち金属キレート化合物(以下「金属キレート化合物(C)」ということがある。)の使用量(含有率)は、特に限定されないが、アクリレート系共重合体(A)100質量部に対し、例えば0.1〜2.0質量部、0.2〜2.0質量部または0.2〜1.0質量部である。金属キレート化合物(C)の使用量が0.1質量部以上であれば、例えば、良好な非汚染性、エージング性が得られやすい。また、金属キレート化合物(C)の使用量が2.0質量部以下であれば、例えば、良好な基材密着性が得られやすい。
本発明の粘着剤組成物中における成分(D)すなわち酸化防止剤(以下「酸化防止剤(D)」ということがある。)の使用量(含有率)は、特に限定されないが、アクリレート系共重合体(A)100質量部に対し、例えば0.1〜2.0質量部または0.2〜0.8質量部である。酸化防止剤(D)の使用量が0.1〜2.0質量部の範囲内であれば、例えば、良好な非汚染性が得られやすい。
本発明の粘着剤組成物は、例えば、成分(A)〜(D)以外の任意成分を、適宜含んでいても良いし、含んでいなくても良い。前記任意成分としては、例えば、有機溶剤等が挙げられる。前記有機溶剤としては、特に限定されないが、例えば、(メタ)アクリレート系共重合体(A)の溶液重合法で用いた有機溶剤等でも良い。
本発明の粘着剤組成物の使用方法は、特に限定されないが、例えば、一般的な粘着剤組成物と同様に、またはそれに準じて使用することができる。また、本発明の粘着シートの構成は特に限定されず、例えば、本発明の粘着剤組成物を用いること以外は、一般的な粘着シートまたは粘着テープに準じても良い。具体的には、例えば、本発明の粘着剤組成物を用いて、以下のようにして本発明の粘着シートを製造することができる。すなわち、まず、本発明の粘着剤組成物を、ポリエチレンテレフタレート(PET)フィルム等の剥離ライナーに塗布する。その後、必要に応じ、前記粘着剤組成物に含まれている有機溶剤等を、加熱等により除去する(乾燥させる)。さらに、前記粘着剤組成物の上に、ポリイミドフィルム等の基材を被せた後に、一定温度下で放置するエージング処理を行ない、本発明の粘着シートを製造することができる。前記エージング処理の温度は特に限定されないが、例えば、5〜80℃であり、時間は、例えば1〜14日である。
モノマー成分として、アクリル酸n−ブチル(単量体(i)):79.75質量部、アクリル酸2−ヒドロキシエチル(単量体(ii)):20.0質量部、アクリル酸(単量体(iii)):0.25質量部、重合開始剤として2,2’−アゾビスイソブチロニトリル:0.02質量部、および重合溶媒(溶剤)として酢酸エチル:120質量部を加え、窒素雰囲気下で70〜80℃で攪拌しながら、溶液重合を行い、固形分27.0%、粘度3000mP・sのアクリレート系共重合体(成分(A))を得た。
各成分の質量比を後述の表1に記載の数値に変更すること以外は実施例1と同様にして粘着剤組成物および粘着シートを作製した。
炭素数4以上のアルキル基を有するアクリル酸アルキルエステル単量体をアクリル酸エチルに変更すること以外は実施例1と同様にして粘着剤組成物および粘着シートを作製した。
各成分の質量比を後述の表2に記載の数値に変更すること以外は実施例1と同様にして粘着剤組成物および粘着シートを作製した。
(非汚染性、浮き・剥がれ)
実施例および比較例で得られた粘着シートのPETフィルム(剥離ライナー)を剥がし、清浄したSUS(ステンレス)板に貼り付け、2kgローラーで3往復圧着して、試験片を作製した。この試験片を300℃で1時間加熱した後、23℃、50%RHで1時間放冷し、同雰囲気中で浮き・剥がれの有無(浮き・剥がれ耐性)および粘着シートを剥がした後の粘着剤の残渣(非汚染性)を、それぞれ目視にて観察した。浮き・剥がれ耐性については、浮き・剥がれが無い場合は◎、わずかにある場合は○、浮き・剥がれがある場合は×として評価した。また、非汚染性については、粘着剤残渣が無い場合は◎、わずかにある場合は○、粘着剤残渣がある場合は×として評価した。なお、浮き・剥がれ耐性の評価が良好であることは、高温環境下においても粘着剤シートが被着体を保護していることを示す。また、非汚染性の評価が良好であることは、加熱後においても、粘着剤の剥離後に粘着剤が被着体を汚染しにくいことを意味する。また、これら浮き・剥がれおよび粘着剤残渣の評価が良好であることは、耐熱性が良好であることの指標となる。
実施例および比較例で得られた粘着シートのPETフィルムを剥がし、粘着面を指で擦り、ポリイミドフィルム(基材)からの粘着剤の脱落の有無を確認した。脱落がない場合を◎、若干脱落する場合を○、脱落がある場合を×として評価した。
実施例および比較例で得られた粘着シートのPETフィルムを剥がし、粘着面について、FT−IR(フーリエ変換赤外吸収スペクトル、ATR法)でIR測定を行い、イソシアネート基由来のピーク(2260cm−1)の有無により、エージング性を調べた。エージング23℃で行い、イソシアネート基由来の吸収ピークが無くなるまでの日数を確認し、以下のように評価した。エージング性が良好であることは、短時間のエージングで架橋反応が進行することを示唆し、指標となる。
エージング日数3日でイソシアネート基由来の吸収ピークが無くなる場合:◎
エージング日数7日でイソシアネート基由来の吸収ピークが無くなる場合:○
エージング日数8日以上でイソシアネート基由来の吸収ピークが無くなる場合:×
Claims (4)
- 下記成分(A)〜(D)を含み、
下記成分(A)は、少なくとも下記(i)〜(iii)の単量体を重合して得られる共重合体であり、
下記成分(B)の含有量が、下記成分(A)に対し、質量比で6%以上であるとともに、下記成分(C)に対し、質量比で5〜400倍であることを特徴とする粘着剤組成物。
(A)(メタ)アクリレート系共重合体
(B)イソシアネート系架橋剤
(C)金属キレート化合物
(D)酸化防止剤
(i)炭素数4以上のアルキル基を有する(メタ)アクリル酸アルキルエステル単量体
(ii)水酸基を有する共重合可能な単量体
(iii)カルボキシル基を有する共重合可能な単量体 - 前記成分(B)の含有量が、前記成分(A)に対し、質量比で40%以下である請求項1記載の粘着剤組成物。
- 前記成分(B)が、ヘキサメチレンジイソシアネート系化合物である請求項1または2記載の粘着剤組成物。
- 基材の少なくとも一方の面に粘着剤層が形成され、
前記粘着剤層が、請求項1から3のいずれか一項に記載の粘着剤組成物により形成されていることを特徴とする粘着シート。
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JP2016161539 | 2016-08-19 | ||
JP2016161539 | 2016-08-19 | ||
PCT/JP2017/029690 WO2018034353A1 (ja) | 2016-08-19 | 2017-08-18 | 粘着剤組成物および粘着シート |
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JP6690761B1 (ja) * | 2019-06-20 | 2020-04-28 | 東洋インキScホールディングス株式会社 | 粘着剤および粘着シート |
CN115287022B (zh) * | 2022-08-24 | 2023-12-15 | 苏州赛伍应用技术股份有限公司 | 一种环保高固低粘胶黏剂及其制备方法和应用 |
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JPS59152977A (ja) * | 1983-02-17 | 1984-08-31 | Nitto Electric Ind Co Ltd | 表面保護粘着体 |
JP2006348131A (ja) * | 2005-06-15 | 2006-12-28 | Somar Corp | 再剥離性粘着剤、再剥離性粘着シート及びこれを用いた回路基板の製造方法 |
JP2011037927A (ja) * | 2009-08-07 | 2011-02-24 | Toyo Ink Mfg Co Ltd | 光学用粘着剤および該光学用粘着剤を用いた光学用粘着シート |
JP2011168658A (ja) * | 2010-02-17 | 2011-09-01 | Daio Paper Corp | 粘着剤組成物、および粘着シート |
JP2014088468A (ja) * | 2012-10-29 | 2014-05-15 | Fujikura Kasei Co Ltd | 粘着剤組成物、および粘着テープ |
JP2015048394A (ja) * | 2013-08-30 | 2015-03-16 | 日東電工株式会社 | 透明導電性フィルム用キャリアフィルム及び積層体 |
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JP2001240830A (ja) | 2000-02-28 | 2001-09-04 | Saiden Chemical Industry Co Ltd | 粘着剤組成物および表面保護フィルム |
JP4073293B2 (ja) | 2002-11-05 | 2008-04-09 | 日東電工株式会社 | 接着テープ又はシート類 |
JP4880877B2 (ja) | 2004-01-16 | 2012-02-22 | リンテック株式会社 | フレキシブルプリント配線基板の製造方法及び該製造方法に用いる再剥離性剥離材付き工程フィルム |
JP5969162B2 (ja) * | 2010-07-28 | 2016-08-17 | リンテック株式会社 | 塗膜保護用再剥離型粘着シート |
CN102911629B (zh) * | 2011-08-05 | 2015-11-25 | 日东电工株式会社 | 粘合剂组合物、粘合剂层以及粘合片 |
JP6243300B2 (ja) | 2014-07-03 | 2017-12-06 | 藤森工業株式会社 | 粘着剤組成物及び表面保護フィルム |
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- 2017-08-18 TW TW106128139A patent/TWI781954B/zh active
- 2017-08-18 WO PCT/JP2017/029690 patent/WO2018034353A1/ja active Application Filing
- 2017-08-18 CN CN201780050568.6A patent/CN109715755B/zh active Active
Patent Citations (8)
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JPS59152977A (ja) * | 1983-02-17 | 1984-08-31 | Nitto Electric Ind Co Ltd | 表面保護粘着体 |
JP2006348131A (ja) * | 2005-06-15 | 2006-12-28 | Somar Corp | 再剥離性粘着剤、再剥離性粘着シート及びこれを用いた回路基板の製造方法 |
JP2011037927A (ja) * | 2009-08-07 | 2011-02-24 | Toyo Ink Mfg Co Ltd | 光学用粘着剤および該光学用粘着剤を用いた光学用粘着シート |
JP2011168658A (ja) * | 2010-02-17 | 2011-09-01 | Daio Paper Corp | 粘着剤組成物、および粘着シート |
JP2014088468A (ja) * | 2012-10-29 | 2014-05-15 | Fujikura Kasei Co Ltd | 粘着剤組成物、および粘着テープ |
JP2015048394A (ja) * | 2013-08-30 | 2015-03-16 | 日東電工株式会社 | 透明導電性フィルム用キャリアフィルム及び積層体 |
WO2015064283A1 (ja) * | 2013-10-29 | 2015-05-07 | 日東電工株式会社 | 表面保護シート |
JP2016074899A (ja) * | 2014-10-08 | 2016-05-12 | 昭和電工株式会社 | 表面保護フィルム用粘着剤組成物及び表面保護フィルム |
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KR20190039954A (ko) | 2019-04-16 |
CN109715755A (zh) | 2019-05-03 |
WO2018034353A1 (ja) | 2018-02-22 |
TWI781954B (zh) | 2022-11-01 |
TW201819574A (zh) | 2018-06-01 |
CN109715755B (zh) | 2021-05-28 |
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