JP6326147B2 - 発泡樹脂基材を有する粘着テープ及びその製造方法 - Google Patents
発泡樹脂基材を有する粘着テープ及びその製造方法 Download PDFInfo
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- JP6326147B2 JP6326147B2 JP2016558472A JP2016558472A JP6326147B2 JP 6326147 B2 JP6326147 B2 JP 6326147B2 JP 2016558472 A JP2016558472 A JP 2016558472A JP 2016558472 A JP2016558472 A JP 2016558472A JP 6326147 B2 JP6326147 B2 JP 6326147B2
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- Prior art keywords
- sensitive adhesive
- pressure
- adhesive tape
- base material
- foamed resin
- Prior art date
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- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 1
- 229960001755 resorcinol Drugs 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N sec-butylidene Natural products CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 229940031439 squalene Drugs 0.000 description 1
- TUHBEKDERLKLEC-UHFFFAOYSA-N squalene Natural products CC(=CCCC(=CCCC(=CCCC=C(/C)CCC=C(/C)CC=C(C)C)C)C)C TUHBEKDERLKLEC-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- MHSKRLJMQQNJNC-UHFFFAOYSA-N terephthalamide Chemical compound NC(=O)C1=CC=C(C(N)=O)C=C1 MHSKRLJMQQNJNC-UHFFFAOYSA-N 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-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
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- PHYFQTYBJUILEZ-IUPFWZBJSA-N triolein Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC PHYFQTYBJUILEZ-IUPFWZBJSA-N 0.000 description 1
- 229940117972 triolein Drugs 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 150000003755 zirconium compounds Chemical class 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/26—Porous or cellular plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/006—Presence of polyurethane in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
本発明における発泡樹脂基材は、樹脂を発泡させることにより内部に独立気泡を形成した基材である。独立気泡を含む発泡樹脂基材は、連続気泡を含む発泡樹脂基材と比較して防水性及び耐人工皮脂汗油性が優れている。
ポリカプロラクトンポリオールの具体例としては、ε−カプロラクトン、σ−バレーロラクトン等の環状エステルモノマーの開環重合体が挙げられる。
粘着剤層は、粘着剤組成物からなる層であり、発泡樹脂基材の少なくとも片面に設けられる。粘着剤組成物は、本発明の効果を損なわない粘着剤を含む組成物であれば良く、特に限定されない。例えば、エマルジョン系粘着剤、溶剤系粘着剤、オリゴマー系粘着剤、固形粘着剤、ホットメルト型粘着剤を使用できる。
アクリル系粘着剤の主な樹脂成分はアクリル系共重合体であるが、その特性を損なわない範囲内において他の種類の樹脂成分も併用できる。
本発明の粘着テープは、以上説明した独立気泡を含む発泡樹脂基材と、この発泡樹脂基材の少なくとも片面に設けられた粘着剤層とを有する。粘着剤層を基材の片面のみに設けた片面粘着テープでも良いが、両面に設けた両面粘着テープが特に好ましい。
撹拌機、温度計、還流冷却器及び窒素ガス導入管を備えた反応装置に、アクリル酸2−エチルヘキシル75部、アクリル酸メチル10部、アクリル酸10部、アクリル酸2−ヒドロキシエチル5部を混合し、酢酸エチル、連鎖移動剤としてn−ドデカンチオール及びラジカル重合開始剤としてラウリルパーオキサイド0.1部を仕込んだ。反応装置内に窒素ガスを封入し、撹拌しながら窒素ガス気流下に68℃で3時間、次いで78℃で3時間重合反応させた。
発泡剤、着色剤などの粉末状成分に適量の有機溶劑を加えて、撹拌機で分散した。次いで、ポリウレタン系樹脂溶液及び架橋剤を加えて、撹拌機で均一分散になるまで撹拌し、ポリウレタン系樹脂組成物を得た。各成分の量(部)は表1及び2に示す。
上記のポリウレタン系樹脂組成物を、両面にシリコーン離型剤を形成した剥離紙の片面に塗布し、70℃2分間+90℃2分間で乾燥して溶媒を除去した。次いで、130℃で2分間加熱することで発泡させ、これを巻き取った。さらに40℃で3日間熟成し、硬化反応を完結させて、発泡樹脂基材(厚さ0.10mm)を得た。
基材としてポリエチレン(PE)系発泡体(積水化学社製、商品名ボラーラ XL−H クロ #1001)を使用したこと以外は、実施例1と同様にして厚さ約0.20mmの両面粘着テープ(各面粘着剤層の厚さ約50μm)を製造した。
基材としてポリエチレンテレフタレート(PET)フィルム(東レ社製、商品名ルミラーS−10)を使用したこと以外は、実施例1と同様にして厚さ約0.20mmの両面粘着テープ(各面粘着剤層の厚さ約75μm)を製造した。
基材が無い厚さ0.20mmのベースレス両面テープを実施例1のアクリル系粘着剤組成物を離型紙に0.2mmの厚さになる様に塗布して製造した。
実施例及び比較例で得た両面粘着テープに対して以下の試験を行った。結果を表1〜3に示す。
発泡樹脂基材の5×5mm面積における多数の独立気泡を透過法による光学顕微鏡にて観察し、径の平均値と最大値を計測した。
両面粘着テープを幅10mm、長さ150〜200mmに切り出し、炭酸カルシウムで粘着性を失活させたものを試験片とした。試験片の一端を、チャック間隔を100mmに設定した引っ張り試験機に固定し、テープ試験分長さ100mmの両サイドにマジックで印を付けた。1500mm/分の速度で引っ張って、長さが2倍(伸長分100mm)又は4倍(伸長分300mm)になった時に片方のチャックを開放し、10秒間を経過した時点の印付部分の全長(回復時の全長)を測った。そして、この伸長分に対する回復分(伸長時の全長−回復時の全長)の割合を求め、これをゴム弾性伸長回復率とした。具体的な計算方法は以下の通りである。
2倍伸長回復率(%)=(200−回復時の全長)÷100×100
4倍伸長回復率(%)=(400−回復時の全長)÷300×100
両面粘着テープを100×100mmに切り出し、炭酸カルシウムで粘着性を失活させたものを試験片とした。試験片を90℃の乾燥機に2時間吊るし、その後室温で1時間以上放置して寸法を測定した。加熱寸法変化率の具体的な計算方法は以下の通りである。
加熱寸法変化率(%)=[(加熱後寸法)−(加熱前寸法)]÷(加熱前寸法)×100
両面粘着テープを幅5mm、長さ125mmのサイズで10本に細断した状態を維持したまま(すなわち細断した各々の粘着テープが細断時の隣接した状態を維持したまま)、65℃、80%RHの雰囲気下に1日放置した。そして1本毎に180度方向に離型紙ごと剥離し、隣接した部分との癒着を目視にて確認し、以下の基準で細幅加工性を評価した。
「〇」:隣接した部分との癒着がほとんど無く、隣接部分を剥すことなく剥離できた。
「×」:隣接した部分に著しい癒着があり、隣接部分が同時に剥れてしまった。
両面粘着テープの片面をアルミ箔(0.08mm厚)で裏打ちしたものを試験片とし、JIS Z 0237「粘着テープ・粘着シート試験方法」に準拠して、ステンレス板に対するテープ貼着30分後の90度剥離試験を行い、以下の基準で評価した。
「〇」:基材の層間破壊や糊残りは無かった。
「×(a)」:剥離時に基材の層間が破壊した。
「×(b)」:剥離後、ステンレス板上に糊残りが認められた。
両面粘着テープを25×25mmのサイズに裁断し、一方の離型紙を剥離した。試験用フック板に両面粘着テープを貼り合せ、次いでもう一方の離型紙を剥離し、ポリカーボネート板に貼り合せた。そしてフックに700gfの荷重をかけ、85℃で60分間保持し、以下の基準で耐荷重性を評価した。
「O」:60分間フックは落下しなかった。
「×」:60分以内にフックが落下した。
両面粘着テープを幅0.8mmで50×45mmの枠状に裁断し、一方の離型紙を剥離して2mm厚のガラス板に貼り合せ、更にもう一方の剥離紙を剥離して3mm厚のポリカーボネート板に貼り合せた。そしてオートクレーブを用いて、23℃、0.5MPaで1時間の加圧処理を行った。さらにSUS板を用いて全体の重さを250gになる様に調整し、−20℃の環境下に1時間以上置いた。そして、1.5mの高さから試験板が垂直方向なる様に筒の中を通しながらコンクリート床に落とし、ガラス板が剥れるか割れるか迄(A)或いは基材の層間破壊が生じる迄(B)の落下回数を測定した。
両面粘着テープを幅0.8mmで40×50mmの枠状に裁断し、一方の離型紙を剥離して2mm厚のガラス板に貼り合わせ、更にもう一方の離型紙を剥離して2mm厚のガラス板を貼り合せた。そしてこのサンプルに対して、オートクレーブを用いて23℃で1時間の加圧処理(0.5MPa)を行った。その後、防水規格IEC「国際電気標準会議」60529:2001〔同等規格:JIS C 0920:2003「電気機械器具の外郭による保護特級(IPコード)」〕のIPX7の試験方法に基づき水没させて、防水性を評価した。また別のサンプルに対して、オートクレーブを用いて23℃で1時間の加圧処理を行い、その後、上記防水規格のIPX8の試験方法に基づき、0.1MPa、0.25MPa、0.5MPaの水中にそれぞれ沈め、防水性を評価した。この評価は、その防水性が保護等級IPX8に定めた条件を満たす、乃至、IPX7に定めた条件を満たさない防水性である、というレベルの段階分けで行った。
両面粘着テープを幅0.8mmで40×50mmの枠状に裁断し、一方の離型紙を剥離して2mm厚のガラス板に貼り合せ、更にもう一方の離型紙を剥離して2mm厚のガラス板を貼り合せた。そして、オートクレーブを用いて23℃、0.5MPaで1時間の加圧処理を行った。このサンプルを、人工皮脂(トリオレイン33.3%、オレイン酸20.0%、スクワレン13.3%、ミリスチルオクタドデシレート33.4%)又は人工汗油に1時間浸漬した。このサンプルを取り出し、85℃、85%RHの雰囲気下で72時間静置し、その後通常の雰囲気下に240時間放置した。そのサンプルを目視観察し、以下の基準で耐人工皮脂・人工汗油性を評価した。
「○」:テープの剥れ無し。
「×」:テープの剥れ有り。
幅0.7mmの両面粘着テープを試験片とし、図3に示すようにHV電極2とTouchパターン模擬電極3の間に両面粘着テープ1を配置した。電極2及び3はTEG基板4上に配線されたものであり、このTEG基板4は絶縁シート5を介してSUS製テーブル6上に載置されている。Touchパターン模擬電極3はSUS製テーブル6にアースされている。さらに図4に示すように、試験面上にアクリル板7を被せた。そしてIEC61000−4−2に準じ、静電ガンを用いてHV電極2にある一定の電圧を100ショットかけ、Touchパターン模擬電極3に向かってスパークした時の電圧値を測定した。
2枚のポリカーボネート板(50×50mm)の間に、幅10mmの両面粘着テープを片端部が10mmほどガラス板より長くなるように貼りあわせた。30分後にその片端部を伸長してこのテープを剥がすことが出来るかどうかを試験し、以下の基準で評価した。
「○」:伸長剥離できた。
「△」:伸長速度を遅くした場合は伸長剥離できた。
「×」:テープ切れが生じた。
発泡樹脂基材と両面粘着テープの各々を幅10mm、長さ200mmに切り出し、チャック間隔を100mmに設定した引っ張り試験機に固定し、300mm/分の速度で引っ張って、破断時の強度(N/10mm)と伸び(%)を測定した。さらに両面粘着テープに関しては、横方向が長さ200mmになるように切り出して強度及び伸びを同じ条件で測定し、各測定値の横縦比[(横方向の引張強度及び伸び/縦方向の引張強度及び伸び)×100]%を計算した。
JIS Z 0237:2000「粘着テープ・粘着シート試験方法」の厚さの試験法に準じ、ダイヤルゲージの負荷の小さい場合(20kPa)と大きい場合(100kPa)の両面粘着テープの厚さを測定した。そして、圧縮変形率(%)=[(100kPa圧力時の厚さ)−(20kPa圧力時の厚さ)]÷(20kPa圧力時の厚さ)×100 の計算式により圧縮変形率を求めた。
動的粘弾性測定の為に粘弾性試験機を用いて、厚さ約0.2mmの両面粘着テープを試験機の測定部の平行盤の間に挟み込み、周波数1Hzで−50℃から150℃までの貯蔵弾性率(G')と損失弾性率(G'')を測定した。さらに、損失係数(tanδ)=G''/G' の計算式により損失係数を求めた。
[UE2]:低結晶性の線状ポリエステル系ウレタンエラストマー(住化バイエルウレタン社製、商品名デスモコール406)
[UE3]:低結晶性の線状ポリエステル系ウレタンエラストマー(三洋化成工業社製、商品名サンプレンLQ−540)
[UE4]:低結晶性の線状ポリエステル系ウレタンエラストマー(三洋化成工業社製、商品名サンプレンIB−129)
[UE5]:中結晶性の線状ポリエステル系ウレタンエラストマー(住化バイエルウレタン社製、商品名デスモコール176)
[UE6]:高結晶性の線状ポリエステル系ウレタンエラストマー(住化バイエルウレタン社製、商品名デスモコール500)
「SIBS」:スチレン−イソブチレン−スチレン共重合体からなる合成ゴム(株式会社カネカ製、商品名シブスター)
[CR]:イソシアネート系架橋剤(日本ポリウレタン工業社製、商品名コロネートL)
[FA1]:熱膨張型発泡剤(松本油脂製薬社製、商品名FN100SSD)
[FA2]:既膨張型発泡剤(日本フィライト社製、商品名920DE40d30)
[CB]:カーボンブラック(電気化学工業社製、商品名デンカブラックHS100)
表1〜3に示す結果から明らかなように、実施例1〜8の粘着テープは各特性が優れていた。なお、実施例4及び5の粘着テープは、リペア性(伸長剥離性)が劣っていた。ただし、実施例4及び5の粘着テープは引張強度が低いので、伸長剥離の際にテープ切れが生じてしまうのである。また実施例4及び5の粘着テープは、耐静電気特性等の他の特性に関しては優れていた。
2 HV電極
3 Touchパターン模擬電極
4 TEG基板
5 絶縁シート
6 SUS製テーブル
7 アクリル板
Claims (9)
- 独立気泡を含む発泡樹脂基材と、該発泡樹脂基材の少なくとも片面に設けられた粘着剤層とを有する粘着テープであって、前記独立気泡の平均径が20〜180μm、最大径が300μm以下であり、前記粘着テープの加熱寸法変化率が加熱前の寸法を100%とした場合に100%±5%以内であり、前記粘着テープのゴム弾性伸長回復率が85%以上であり、前記発泡樹脂基材がベースポリマーとしてポリウレタン系樹脂を含み、前記粘着剤層がアクリル系粘着剤、ゴム系粘着剤(天然ゴム系粘着剤又は合成ゴム系粘着剤)、シリコーン系粘着剤、ポリエステル系粘着剤、ウレタン系粘着剤、ポリアミド系粘着剤、エポキシ系粘着剤、ビニルアルキルエーテル系粘着剤又はフッ素系粘着剤を含む粘着剤組成物からなる層である粘着テープ。
- ポリウレタン系樹脂が、低結晶性の線状ポリエステル系ポリウレタン樹脂である請求項1記載の粘着テープ。
- 発泡樹脂基材の両面に粘着剤層が設けられた両面粘着テープである請求項1記載の粘着テープ。
- 縦方向及び横方向の引張強度が6.0N/10mm以上であり、該引張強度は発泡樹脂基材単独の引張強度を100%とした場合に110%以上であり、縦方向及び横方向の引張強度の一方を100%とした場合に他方の引張強度は100%±15%以内であり、縦方向及び横方向の破断時の伸びが300%以上であり、縦方向及び横方向の破断時の伸びの一方を100%とした場合に他方の伸びは100%±15%以内である請求項1記載の粘着テープ。
- IEC6100に準拠した耐静電気特性が15kV以上である請求項1記載の粘着テープ。
- 厚さ方向の圧縮変形率が3.0%以上である請求項1記載の粘着テープ。
- −20℃における損失係数が0.20以上であり、85℃における貯蔵弾性率が2.0×105Pa以上で且つ85℃における損失係数が0.20以上である請求項1記載の粘着テープ。
- 携帯情報端末機器を構成する部材の接着又は固定の為に用いられる請求項1記載の粘着テープ。
- 請求項1記載の粘着テープを製造する為の方法であって、熱膨張性マイクロカプセル及び/又は既膨張中空フィラーを用いて独立気泡を形成することにより発泡樹脂基材を得る工程を有する粘着テープの製造方法。
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WO2016170593A1 (ja) * | 2015-04-21 | 2016-10-27 | 株式会社寺岡製作所 | 粘着シート |
TWI659837B (zh) * | 2017-03-14 | 2019-05-21 | 仁寶電腦工業股份有限公司 | 裝飾膜結構與其製作方法 |
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EP3680305A4 (en) * | 2017-08-30 | 2021-04-07 | Teraoka Seisakusho Co., Ltd. | DUCT TAPE |
BR112020004306B1 (pt) * | 2017-09-04 | 2023-03-21 | Nouryon Chemicals International B.V. | Microesferas termicamente expansíveis processo de fabricação das microesferas, processo de preparação de microesferas expandidas e microesferas expandidas |
TWI812660B (zh) * | 2017-12-26 | 2023-08-21 | 日商Dic股份有限公司 | 使用了黏著帶的物品的製造方法 |
US20210115309A1 (en) * | 2018-04-16 | 2021-04-22 | Teraoka Seisakusho Co., Ltd. | Adhesive tape |
KR20210063316A (ko) * | 2018-09-21 | 2021-06-01 | 세키스이가가쿠 고교가부시키가이샤 | 양면 점착 테이프 |
CN111378086A (zh) * | 2018-12-27 | 2020-07-07 | 美国圣戈班性能塑料公司 | 聚氨酯泡沫体及其形成方法 |
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WO2020153357A1 (ja) * | 2019-01-22 | 2020-07-30 | 積水化学工業株式会社 | 粘着テープ、及びその製造方法 |
CN113302250B (zh) * | 2019-04-24 | 2023-02-17 | 积水化学工业株式会社 | 粘合带 |
JP2021024907A (ja) * | 2019-08-01 | 2021-02-22 | 日東電工株式会社 | 両面粘着テープ |
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