JP2019059931A5 - - Google Patents

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JP2019059931A5
JP2019059931A5 JP2018178752A JP2018178752A JP2019059931A5 JP 2019059931 A5 JP2019059931 A5 JP 2019059931A5 JP 2018178752 A JP2018178752 A JP 2018178752A JP 2018178752 A JP2018178752 A JP 2018178752A JP 2019059931 A5 JP2019059931 A5 JP 2019059931A5
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Japan
Prior art keywords
release agent
pressure
adhesive tape
sensitive adhesive
tape roll
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JP2018178752A
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Japanese (ja)
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JP7365112B2 (en
JP2019059931A (en
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Claims (11)

基材層と粘着剤層とを有する粘着テープをロール状に捲回した粘着テープロールであって、
前記基材層が離型剤（ａ）を、前記粘着剤層が離型剤（ｂ）を含有し、
前記基材層を構成するベース樹脂と前記離型剤（ａ）とのＳＰ値の差ΔＳＰ１が、０．１以上であり、
前記粘着剤層を構成するベース樹脂と前記離型剤（ｂ）とのＳＰ値の差ΔＳＰ２が、０．１以上である
ことを特徴とする粘着テープロール。 An adhesive tape roll in which an adhesive tape having a base material layer and an adhesive layer is wound in a roll shape.
The base material layer contains the release agent (a), and the pressure-sensitive adhesive layer contains the release agent (b) .
The difference ΔSP1 between the SP values of the base resin constituting the base material layer and the release agent (a) is 0.1 or more.
An adhesive tape roll characterized in that the difference ΔSP2 between the base resin constituting the pressure-sensitive adhesive layer and the release agent (b) is 0.1 or more. 巻芯側サンプルの粘着力と、巻外側サンプルの粘着力との粘着力変化率が５０％以下であることを特徴とする請求項１記載の粘着テープロール。 The adhesive tape roll according to claim 1, wherein the change rate of the adhesive force between the adhesive force of the winding core side sample and the adhesive force of the winding outer sample is 50% or less. 粘着剤層は、粘着付与剤を含有し、前記粘着剤層中の前記粘着付与剤の含有量が、前記粘着剤層を構成するベース樹脂１００重量部に対して４０重量部以下であることを特徴とする請求項１又は２記載の粘着テープロール。 The pressure-sensitive adhesive layer contains a pressure-sensitive adhesive, and the content of the pressure-sensitive adhesive in the pressure-sensitive adhesive layer is 40 parts by weight or less with respect to 100 parts by weight of the base resin constituting the pressure-sensitive adhesive layer. The adhesive tape roll according to claim 1 or 2. 離型剤（ａ）及び（ｂ）は、アミン系離型剤、シリコン系離型剤、フッ素系離型剤、炭化水素系離型剤又は金属石鹸系離型剤であることを特徴とする請求項１又は２記載の粘着テープロール。 The release agents (a) and (b) are an amine-based release agent, a silicon-based release agent, a fluorine-based release agent, a hydrocarbon-based release agent, or a metal soap-based release agent. The adhesive tape roll according to claim 1 or 2. 離型剤（ａ）及び（ｂ）は、アミン系離型剤であり、前記アミン系離型剤は、脂肪酸ビスアミドであることを特徴とする請求項４記載の粘着テープロール。 The adhesive tape roll according to claim 4 , wherein the release agents (a) and (b) are amine-based release agents, and the amine-based release agent is a fatty acid bisamide. 基材層は、ポリオレフィン系樹脂、ポリエステル系樹脂又はアクリル系樹脂を含有することを特徴とする請求項１、２、３、４又は５記載の粘着テープロール。 The adhesive tape roll according to claim 1, 2, 3, 4 or 5 , wherein the base material layer contains a polyolefin-based resin, a polyester-based resin, or an acrylic-based resin. 粘着剤層は、スチレン系エラストマーを含有することを特徴とする請求項１、２、３、４、５又は６記載の粘着テープロール。 The pressure-sensitive adhesive tape roll according to claim 1, 2, 3, 4, 5 or 6 , wherein the pressure-sensitive adhesive layer contains a styrene-based elastomer. 粘着テープロールの巻長さが３００ｍ以上であることを特徴とする請求項１、２、３、４、５、６又は７記載の粘着テープロール。 The adhesive tape roll according to claim 1, 2, 3, 4, 5, 6 or 7 , wherein the adhesive tape roll has a winding length of 300 m or more. 基材層を構成するベース樹脂は、ポリプロピレン樹脂を含有することを特徴とする請求項１、２、３、４、５、６、７又は８記載の粘着テープロール。The adhesive tape roll according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the base resin constituting the base material layer contains a polypropylene resin. 粘着剤層を構成するベース樹脂は、スチレンエチレンブチレンスチレンブロック共重合体を含有することを特徴とする請求項１、２、３、４、５、６、７、８又は９記載の粘着テープロール。The pressure-sensitive adhesive tape roll according to claim 1, 2, 3, 4, 5, 6, 7, 8 or 9, wherein the base resin constituting the pressure-sensitive adhesive layer contains a styrene-ethylenebutylene-styrene block copolymer. .. 粘着テープと光学フィルムとが貼り合されてなる光学フィルム積層体であって、
前記粘着テープは基材層と粘着剤層とを有し、
前記基材層は離型剤（ａ）を含有し、前記粘着剤層が離型剤（ｂ）を含有し、
前記基材層を構成するベース樹脂と前記離型剤（ａ）とのＳＰ値の差ΔＳＰ１が、０．１以上であり、
前記粘着剤層を構成するベース樹脂と前記離型剤（ｂ）とのＳＰ値の差ΔＳＰ２が、０．１以上である
ことを特徴とする光学フィルム積層体。 An optical film laminate in which an adhesive tape and an optical film are bonded together.
The adhesive tape has a base material layer and an adhesive layer, and has an adhesive layer.
The base material layer contains a release agent (a), and the pressure-sensitive adhesive layer contains a release agent (b) .
The difference ΔSP1 between the SP values of the base resin constituting the base material layer and the release agent (a) is 0.1 or more.
An optical film laminate characterized in that the difference ΔSP2 between the base resin constituting the pressure-sensitive adhesive layer and the release agent (b) is 0.1 or more.
JP2018178752A 2017-09-27 2018-09-25 Adhesive tape roll and optical film laminate Active JP7365112B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017187167 2017-09-27
JP2017187167 2017-09-27

Publications (3)

Publication Number Publication Date
JP2019059931A JP2019059931A (en) 2019-04-18
JP2019059931A5 true JP2019059931A5 (en) 2021-10-28
JP7365112B2 JP7365112B2 (en) 2023-10-19

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ID=66178383

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JP2018178752A Active JP7365112B2 (en) 2017-09-27 2018-09-25 Adhesive tape roll and optical film laminate

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JP (1) JP7365112B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7132371B2 (en) * 2021-01-22 2022-09-06 日東電工株式会社 Film with adhesive layer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000136367A (en) 1998-11-02 2000-05-16 Nitto Denko Corp Pressure-sensitive adhesive composition for surface protective film, and surface protective film
JP2013072062A (en) 2011-09-29 2013-04-22 Sekisui Chem Co Ltd Wound body of surface-protective film for flat surface and method for manufacturing the same

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