JP2021152170A - 損傷のない取り外しを可能にする接着性物品 - Google Patents
損傷のない取り外しを可能にする接着性物品 Download PDFInfo
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Abstract
Description
本出願は、それぞれ2017年8月25日、2018年1月26日、及び2018年8月25日に出願された、各々が「Adhesive Articles Permitting Damage Free Removal」という表題の3M代理人整理番号第79768US002号、同第79768US003号、及び同第79768WO004号に関連し、それぞれの全体が参照により本明細書に組み込まれる。
コアは接着構造体の一部であり、コアがなければ隣接している接着層の部分の界面結合を妨げる。コア材料は、コアと剥離可能接着剤との間の容易な分離を可能にする低エネルギー表面を提供するように選択できる。コアは、単一層構造又は多層構造とすることができる。コア内には、2つ以上のコア層が存在し得る。複数のコア層は、1つ以上の層を更に含んでもよいフィルムの層によって分け隔てられることができる。いくつかの実施形態では、コアは、プラスチック、金属、紙、不織布材料、織物、織布材料、発泡体、接着剤、ゲル、及び/又はフィラメント強化材料のうちの少なくとも1つを含む。いくつかの実施形態では、コアは、材料の単一層又は多層フィルムのうちの少なくとも1つである。他の実施形態では、コアは、隣接する接着層の間に配置された粒子の配列であり得る。
いくつかの現時点で好ましい実施形態では、コアは不織布基材を含む。不織布基材は、不織布ウェブを製造するための一般的に知られているプロセスのいずれかによって製造された不織布又はウェブであり得る。本明細書で用いる場合、用語「不織布」は、不規則にかつ/又は一方向に、マット状に組み込まれているが、ニット布地のように識別可能な性質ではない、個々の繊維又はフィラメントの構造を有する布地を指す。不織布又は不織布ウェブは、メルトブローンプロセス、スパンボンドプロセス、スパンレースプロセス、結合カードウェブプロセス、エアレイイングプロセス、及びウェットレイイングプロセスなどの、様々なプロセスで形成することができる。いくつかの実施形態では、コアは、例えば、少なくとも1つのメルトブローン不織布の層及び少なくとも1つのスパンボンド不織布の層、又は不織布材料の任意の他の好適な組み合わせを有する、多層の不織布材料を含む。例えば、コアは、スパンボンド−メルトボンド−スパンボンド、スパンボンド−スパンボンド、又はスパンボンド−スパンボンド−スパンボンドの多層材料であってもよい。又は、コアは、不織布層及びフィルム層を含む、複合ウェブであり得る。
本開示の多くの実施形態では、コアはポリマーフィルムを含んでもよく、ポリマーフィルムからなってもよい。ポリマーフィルムコア層は、例えば単一層又は多層フィルム、多孔質フィルム、及びこれらの組み合わせを含む、様々な形態であってもよい。ポリマーフィルムは、1つ以上の充填剤(例えば炭酸カルシウム)を含有してもよい。ポリマーフィルムは、連続層であってもよく、あるいは不連続層であってもよい。多層ポリマーフィルムは、複合フィルム、積層フィルム、及びこれらの組み合わせの形態で、互いに一体的に結合されていることが好ましい。多層ポリマーフィルムは、例えば、共成形、共押出し、押出コーティング、接着剤による接合、加圧接合、加熱接合、及びこれらの組み合わせなどの任意の好適な方法を使用して調製することができる。
いくつかの実施形態では、コア層は、粒子の集まりからなる。粒子は、1つ以上のコア層に分散させることができる。概ね、粒子は、中実、中空、又は多孔質であり、剛性又は非剛性であってもよい。粒子は、木材、ガラス、セラミック、ポリマー、金属、金属酸化物、及び炭素材料などの任意の好適な材料でできていてもよい。コア層の粒子は、概ね、約1ミクロン〜約100milのサイズ範囲である。異なる粒子は、異なるコア層に分散させることができる。1つのコア層には、複数の組成、タイプ、又はサイズの粒子を含有することもできる。1つのコア層の粒子は、同じ又は異なる組成及び表面処理のものであり得る。粒子は、特定の形状に配列させることも、不均一に分布させることもできる。粒子の表面は、疎水性又は親水性となるように処理又は官能化されてもよい。粒子は、アグロメレートしたもの又はアグロメレートしていないものであってもよく、アグリゲートしたもの又はアグリゲートしていないものであってもよい。「アグロメレート」とは、電荷又は極性によりまとまっていてもよく、より小さい構成要素に分解可能である、一次粒子間の弱い会合を意味する。「アグリゲート」とは、得られた外表面積が別個の構成要素の計算された表面積の合計より著しく小さくてもよい、強く結合した、又は融合した粒子を指す。アグリゲートを一体に保持する力としては、強い力、例えば共有結合、又は焼結若しくは複雑な物理的交絡から生じる力を挙げることができる。アグリゲートはまた、可逆的又は温度依存性の結合(例えば、イオン結合)によって共に保持されてもよい。
コアで使用される場合、ゲルは、典型的には、Brookfield LVT粘度計を使用して23℃で測定したときに、少なくとも100,000センチポアズ(cps)、少なくとも500,000cps、少なくとも600,000cps、更に他の実施形態では少なくとも700,000cpsの粘度(測定可能な範囲まで)を有する。いくつかの実施形態では、コアは、好適な溶媒(例えば、加熱テトラヒドロフラン又はトルエン)内で可溶性ポリマーの抽出によって測定されたときに、25%を超える、又は50%を超える、又は80%を超えるゲル含有量(すなわち、ゲル画分)を有することができる。いくつかの実施形態では、ゲルは、以下に記載される接着剤である。特定のゲル中の結合又は他の引力は、分離後に再構成可能であり、接着性物品が被着体から取り外された後であってもゲルコアを再使用することができる。
いくつかの実施形態において、コアは接着剤を含む。いくつかの実施形態において、コアは感圧接着剤である。有用な感圧接着剤の一般的な説明は、Encyclopedia of Polymer Science and Engineering,Vol.13,Wiley−Interscience Publishers(New York,1988)に見出され得る。有用な感圧接着剤の更なる説明は、Encyclopedia of Polymer Science and Technology,Vol.1,Interscience Publishers(New York,1964)に見出され得る。感圧接着性組成物は、以下:(1)粘着性、(2)指圧以下の圧力による接着、(3)被着体上に留まる十分な能力、並びに(4)被着体からきれいに取り外すことができるのに十分な凝集力、などの特性を保有することが、当業者には周知である。感圧接着剤として十分に機能することが判明している材料は、所望のバランスの粘着力、剥離接着力、及び剪断保持力をもたらすのに必要な粘弾性特性を呈するように設計かつ配合されたポリマーである。好適なPSAは、架橋又は非架橋(メタ)アクリル、ゴム、熱可塑性エラストマー、シリコーン、ポリウレタンなどをベースとしてもよく、所望の粘着性を提供するための粘着付与剤、並びに他の添加剤を含んでもよい。いくつかの実施形態では、PSAは、(メタ)アクリルPSA又は少なくとも1つのポリ(メタ)アクリレートをベースとするものであり、(メタ)アクリレートは、アクリレート基及びメタクリレート基の両方を指す。いくつかの実施形態では、PSAは、オレフィンブロックコポリマー系接着剤である。アクリル系感圧接着剤は、例えば、米国特許第4,726,982号(Traynorら)、及び同第5,965,256号(Barrera)に記載されている。シリコーン系感圧接着剤は、例えば、米国特許第6,730,397号(Melanconら)、及び同第5,082,706号(Tangney)に記載されている。ポリウレタン系感圧接着剤は、例えば、米国特許出願公開第2005/0137375号(Hansenら)に記載されている。オレフィンブロックコポリマー系感圧接着剤は、例えば、米国特許出願公開第2014/0335299(Wangら)に記載されている。
本明細書に記載される接着性物品に使用される接着剤は、所望の特性を有する任意の接着剤を含むことができる。いくつかの実施形態において、接着剤は剥離可能である。いくつかの実施形態において、接着剤は、接着性物品が被着体表面から約35°以下の角度で剥離されるときに、被着体表面からきれいに剥離する。いくつかの実施形態において、剥離可能接着剤は、多層キャリアが被着体表面から約35°以上の角度で剥離されるときに、被着体表面に接着剤の跡が実質的に残らないように被着体表面から剥離される。
いくつかの実施形態において、接着性物品は更にタブを含む。タブは、被着体からの接着性物品の剥離を支援又は開始するために、ユーザが容易にアクセスできる領域である。取り外し用タブは、最も外側の接着層によって粘着性とすることができ、又は伸長フィルム、非伸長フィルム、剥離ライナーの層による被覆によって、又は粘着性低減接着剤によって非粘着性とすることができる。
いくつかの実施形態は、ハードグッド又は取り付けデバイスを更に含む。例示的なハードグッド又は取り付けデバイスとしては、例えば、フック、ノブ、クリップ、及びループが挙げられる。いくつかの実施形態において、ハードグッドは釘に似ている。いくつかの実施形態において、ハードグッドは、吊り下げ面として機能するための単一の外向き突出部を有する。いくつかの実施形態において、ハードグッドは、吊り下げ面として機能するための複数の外向き突出部を有する。いくつかの実施形態において、ハードグッドは、1つ以上の物品を、非限定的にボックス又はキャディなどの内部に保持できる形状に成形される。いくつかの実施形態において、ハードグッドは棚板、棚状突起、又は架台である。いくつかの実施形態において、ハードグッドはバーであり、バーは、真っ直ぐ若しくは湾曲していてもよく、又は実質的にリングでもよく、バーは、基材表面に対して平行又は垂直に装着することができる。いくつかの実施形態において、ハードグッドは、物品を装着する又は吊り下げるための複数の方法を使用する。本開示の接着性物品と共に、以下の取り付けデバイス:出願案件番号77486US002(本譲受人に譲渡されている)、米国特許第5,409,189号(Luhmann)、同第5,989,708号(Kreckel)、同第8,708,305号(McGreevy)、同第5,507,464号(Hamerskiら)、同第5,967,474号(doCantoら)、同第6,082,686号(Schumann)、同第6,131,864号(Schumann)、同第6,811,126号(Johanssonら)、同第D665,653号、及び同第7,028,958号(Pitzenら)のうちのいずれも使用することができ、それらの文献は全て、その全体が参照により本明細書に組み込まれる。ハードグッドは、基材に装着される任意の対象物でもよい。
本明細書に記載される接着性物品は、様々な方法で製造することができる。一実施形態は、コアの主面に、又は主面に隣接して接着剤を配置することを伴う。いくつかの実施形態において、コアの他の主面に第2の接着剤が配置される。
本開示の剥離可能な物品は、様々な方法で使用することができる。いくつかの実施形態において、接着性物品は、被着体に、適用され、付着され、又は押し付けられる。このようにして、接着性物品は被着体と接触する。剥離ライナーが存在する場合、剥離ライナーは、接着性物品が被着体に適用され、付着され、又は押し付けられる前に、取り除かれる。いくつかの実施形態では、接着性物品が被着体に適用され、付着され、又は押し付けられる前に、被着体の少なくとも一部分がアルコールで拭われる。
接着性物品は、浴室に見られるような湿潤環境又は高湿度環境で使用されてもよい。例えば、接着性物品はトイレ(例えば、トイレタンク)、バスタブ、シンク、及び壁に接着することができる。接着性物品は、シャワー、ロッカー室、スチーム室、プール、高温タブ、及びキッチン(例えば、キッチンシンク、食器洗浄機、及びバックスプラッシュ領域、冷蔵庫及びクーラー)で使用されてもよい。接着性物品はまた、屋外用途及び冷蔵庫などの低温用途で使用されてもよい。有用な屋外用途としては、標識などの物品を窓、ドア、及び車両などの屋外表面に結合することが挙げられる。
1.第1の剥離可能接着層と、第2の剥離可能接着層と、第1の剥離可能接着剤と第2の剥離可能接着剤との間に配置され、第1主面及び第2主面を有する別個のコアであって、コアが、第1主面と一致するコア平面を画定する、別個のコアと、第1の接着層と第2の接着層との間の界面をそれぞれ含む、複数の接着性接触領域と、を含む、接着性物品。
2.各界面がコア平面の外に存在する、実施形態1に記載の接着性物品。
3.コアが、多層フィルムを含む、実施形態1又は2に記載の接着性物品。
4.多層フィルムが、フィルムコア及び少なくとも1つのスキン層を含む、実施形態3に記載の接着性物品。
5.コアが、材料の不連続層を含む、実施形態1〜4に記載の接着性物品。
6.コアが、材料の連続層を含む、実施形態1〜4に記載の接着性物品。
7.第1の接着層が、コアに接着結合されている、実施形態1〜6に記載の接着性物品。
8.コアが、不織布材料を含む、実施形態1〜7に記載の接着性物品。
9.コアが一連の開口部を画定し、各界面が開口部内に位置する、実施形態1〜8に記載の接着性物品。
10.コアが、第1の接着剤と接触する第3の接着剤を含み、各界面における剥離強度が、第1の接着剤と第3の接着剤との間の剥離強度よりも大きい、実施形態1に記載の接着性物品。
11.コアが、第1の接着層と第2の接着層との間の接触を防止するのに十分なサイズの複数の粒子からなる、実施形態1又は2に記載の接着性物品。
12.粒子が、木材、金属、金属酸化物、セラミック、及びこれらの組み合わせからなる群から選択される、実施形態11に記載の接着性物品。
13.物品が、第1の接着層とコアとの間のコア界面を含み、接着性界面における接着結合強度が、コア界面における接着結合強度よりも大きい、実施形態1に記載の接着性物品。
14.コア平面に垂直な方向に力を加えることにより、コア内での構造的一体性が失われる、実施形態1〜13のいずれか1つに記載の接着性物品。
15.コアが周辺部を画定し、接着性接触領域が周辺部を囲んでいる、実施形態1〜14のいずれか1つに記載の接着性物品。
16.接着性接触領域が、周辺部の一部分に沿って延びる少なくとも1つの連続シームを含む、実施形態15に記載の接着性物品。
17.コアが周辺部境界を画定し、接着性接触領域が境界内に配置されている、実施形態1〜16に記載の接着性物品。
18.対象物を取り付けるための接着性物品であって、第1の剥離接着層と、第2の剥離接着層と、第1の接着層と第2の接着層との間に配置されている周辺部境界を画定するコアと、周辺部境界の少なくとも一部分に沿って延びる複数のシームであって、シームが、第1の接着層と第2の接着層との間の界面を含む、複数のシームと、を含む、接着性物品。
19.複数のシームが、境界の少なくとも2つの側面に沿って延びるシームを含む、実施形態18に記載の接着性物品。
20.複数のシームが境界を囲んでいる、実施形態18又は19に記載の接着性物品。
21.境界の形状が、正方形、矩形、円形、卵形、及び四面体のうちの1つである、実施形態18〜20に記載の接着性物品。
22.コアが、不織布材料の層を含む、実施形態18〜21に記載の接着性物品。
23.コアが、不織布材料と第1の接着層との間に配置されている剥離層を含む、実施形態22に記載の接着性物品。
24.コアが平面を画定し、平面が、第1の接着層とコアとの間の界面に実質的に平行である、実施形態18〜23に記載の接着性物品。
25.物品の90°接着強度が、少なくとも40oz/in2である、実施形態24に記載の接着性物品。
26.物品が表面に接着され、第1の接着層が少なくとも35度の剥離角度で表面から取り外され、コアは剥離力に実質的に寄与しない、実施形態18〜25に記載の接着性物品。
27.第1の接着層がコアに結合され、取り付け面からの第1の接着層の取り外しにより、コアから第1の接着剤の剥がれが生じる、実施形態26に記載の接着性物品。
28.取り付け面から第1の接着層を取り外しても、シームのうちの少なくとも1つに剥がれが生じない、実施形態18〜27に記載の接着性物品。
29.コアの反対側の第1の接着層の表面上に剥離ライナーを更に含む、実施形態18の接着性物品。
30.コアの反対側の第1の接着層の表面上にハードグッドを更に含む、実施形態18〜29に記載の接着性物品。
31.コアの反対側の第1の接着層の表面上にフレーム又はポスターを更に備える、実施形態18〜29に記載の接着性物品。
32.コアが、ASTM D638に従って測定した場合に約50psi〜約5000psiの引張係数及び/又は弾性率を有する、実施形態18〜29に記載の接着性物品。
33.コアが光学的に透明である、実施形態18の接着性物品。
34.コアが、エラストマー材料、エラストマー性ポリマー、SEBS、SEPS、SIS、SBS、ポリウレタン、エチルビニルアセテート(EVA)、エチルメチルアクリレート(EMA)超低直鎖密度ポリエチレン(ULLDPE)、水素化ポリプロピレン、及びこれらの組み合わせ又はブレンドのうちの少なくとも1つを含むコア層と;ポリプロピレン、ポリエチレン、高密度ポリエチレン(HDPE)、低密度ポリエチレン(LDPE)、直鎖状低密度ポリエチレン(LLDPE)、ポリウレタン、EVA、EMA、接着剤、及びこれらの組み合わせ又はブレンドのうちの少なくとも1つを含む第1のスキン層と、を含む、多層フィルムを含む、実施形態18の接着性物品。
35.対象物を表面に取り付けるための接着性物品であって、第1の接着層と、第2の接着層と、周辺部を画定するコアであって、コアが第1の接着層と第2の接着層との間に配置されている、コアと、複数の接着性接触領域であって、接着性接触領域が、第1の接着層と第2の接着層との間の界面を含み、接着性接触領域が、コアの周辺部内に位置している、複数の接着性接触領域と、を含む、接着性物品。
36.コアが、不織布を含む、実施形態35に記載の接着性物品。
37.コアが、第1の接着層及び第2の接着層の一部分が界面を構築することを防ぐのに十分なサイズの複数の粒子を含む、実施形態35に記載の接着性物品。
38.コアが開口部を含み、接着性接触領域のうちの少なくとも1つが開口部内に位置している、実施形態35に記載の接着性物品。
39.接着性物品は、物品が被着体表面から約35°以上の角度で剥ぎ取られるときに、被着体の表面から剥離する、実施形態1〜38のいずれか1つに記載の接着物品。
40.接着性物品は、被着体から損傷なく剥がれる、実施形態1〜39のいずれか1つに記載の接着性物品。
41.接着性物品が35度を超える角度で取り外されるとき、少なくとも第1の接着層がコアから剥がれ、接着性物品が35度を超える角度で取り外されるとき、第1の接着層が界面のそれぞれにおいて第2の接着層から剥がれない、実施形態35に記載の接着性物品。
42.剥離可能接着剤が、SBS、SBR、SIS、SEBS、アクリレート、及び/又はポリウレタンのうちの少なくとも1つを含む、実施形態1〜41のいずれか1つに記載の接着性物品。
43.剥離可能接着剤が、次の粘着付与剤:ポリテルペン、テルペンフェノール、ロジンエステル、炭化水素、C5樹脂、C9樹脂、及び/又はロジン酸のうちの少なくとも1つを含む、実施形態1〜42のいずれかの1つに記載の接着性物品。
44.剥離可能接着剤が、アクリレート接着剤、ポリウレタン接着剤、天然ゴムなどの粘着付与ゴム接着剤;オレフィン;シリコーンポリウレアなどのシリコーン;ポリイソプレン、ポリブタジエン、及びスチレン−イソプレン−スチレンコポリマー、スチレン−エチレン−ブチレン−スチレンコポリマー及びスチレン−ブタジエン−スチレンブロックコポリマー、SBR、SEBS、及び他の合成エラストマーなどの合成ゴム接着剤;及び放射法、溶液法、懸濁法、又はエマルション法によって重合することのできるイソオクチルアクリレートとアクリル酸とのコポリマーなどの粘着付与のアクリル系接着剤又は非粘着付与のアクリル系接着剤;ポリウレタン;シリコーンブロックコポリマー;並びにこれらの組み合わせのうちの少なくとも1つを含む、実施形態1〜43のいずれかの1つに記載の接着性物品。
45.表面に取り付けるための対象物であって、第1主面を有するハードグッドと、ハードグッドと接触する第1面及び第1面の反対側にある第2面を画定する別個のコアと、ハードグッドの第1主面及びコアの第2面の両方に結合された接着層と、を含み、接着剤をハードグッドから取り除くのに必要な剥離力は、コアから接着剤を剥がす、又はコアの層間剥離を引き起こすための少なくとも一方に必要な剥離力よりも大きい、対象物。
46.ハードグッドは、フック、ノブ、クリップ、キャディ、ボックス、及び/又はループのうちの少なくとも1つを含む、実施形態45に記載の取り付け対象物。
47.接着性物品の使用方法であって、実施形態1〜46のいずれか1つに記載の接着性物品を被着体表面と接触させることを含む、方法。
48.被着体表面から接着性物品を剥離して、被着体表面から接着性物品の少なくとも一部分を取り外すことであって、接着性物品が35°以上の角度で剥離されることを更に含む、実施形態47に記載の方法。
49.被着体表面から接着性物品を剥離する工程中にコアの構造的一体性が損なわれる、実施形態48に記載の方法。
50.被着体表面から接着性物品を剥離することにより、第1の接着層がコアから剥がれる、実施形態48又は49に記載の方法。
51.接着性物品が剥離される際に、第1の接着層が接着性接触領域において第2の接着層に結合されたままである、上記実施形態48〜50に記載の方法。
ラップ剪断(0°剥離)接着強度試験
次の方法により剥離接着強度及び除去性を評価した。中程度の圧力(およそ5ポンド)で5秒間、手で試験構造体を被着体に適用した。接着したサンプルは、試験の前に、72°F(22℃)、相対湿度50%で3日間エージングさせた。試験直前に、接着構造体の残りのライナーを取り外し、ステンレス鋼シム(6”×2”×0.031”、ChemInstruments(West Chester Township,OH)から入手)を、中程度の圧力(およそ5ポンド)で5秒間、上部接着剤表面に適用した。被着体及びステンレス鋼シムの露出した縁部を、INSTRON万能試験機上の対向するクランプに配置した。12インチ/分(30.5cm/分)のクロスヘッド速度で、被着体表面から構造体が取り外されるまで、INSTRON万能試験機を用いて、剪断試験を実施した。クロスヘッド変位の関数としてロードセルの力を記録した。各サンプルにつき4反復を試験した。
次の方法により剥離接着強度及び除去性を評価した。中程度の圧力(およそ5ポンド)で5秒間、手で試験構造体を被着体に適用した。接着したサンプルは、試験の前に、72°F(22℃)、相対湿度50%で3日間エージングさせた。試験直前に、接着構造体の残りのライナーを取り外し、アルミニウムt−バー(アルミニウム6061−T6むき出しのt−バー1.5”×1.5”×0.25”を1.5”に切断、OnlineMetals(Seattle WA))を、中程度の圧力(およそ5ポンド)で5秒間、上部接着剤表面に適用した。被着体を平坦な表面にクランプし、アルミニウムt−バーをINSTRON万能試験機の上部クランプに配置した。12インチ/分(30.5cm/分)のクロスヘッド速度で、被着体表面から構造体が取り外されるまで、INSTRON万能試験機を用いて、剥離試験を実施した。クロスヘッド変位の関数としてロードセルの力を記録した。接着剤が多少なりとも被着体上に残っている場合、損傷レベルをより良好に観察するために手で取り除いた。各サンプルにつき4反復を試験した。損傷の視覚的評価は次のとおりであった:0−損傷なし、1−小さな塗料気泡(表面積の10%未満)、2−大きな塗料気泡(表面積の10%超)、3−小さな紙の破れ、4−紙の破れ/損傷(50%未満)、5−紙の破れ損傷(50%超)。各サンプルにつき2反復を試験した。
試験構造体を、最初に1.25インチ×1.35インチの射出成形ポリカーボネートフック(各フックは、30milの厚さ及び図11に示されるタイプのもの)に適用し、中程度の圧力下(およそ5ポンド)で5秒間手で適用した。次いで、フック及び接着構造体を、中程度の圧力(約5ポンド、5秒間)下で手で被着体に適用し、フックが構造体の底部に配置されて、重りが吊り下がるようにした。スチールショット(0.5ポンド)を含むプラスチック袋を壁板の被着体に貼り付けた直後にフックから吊り下げた。1時間、24時間、48時間、及び72時間の吊り下げ後にサンプルが観察され、各時点で損傷が記録された。2反復の実施例9を除いて、全てのサンプルを3反復試験した。性能値は、所与の実施例の全ての反復に対する吊り下げ時間の平均であり、最大性能値だと72時間、最小性能値だと0時間になるようにする。
接着強度試験のそれぞれのピーク力を、クロスヘッド変位及び力(oz)を記録したINSTRON Bluehill 3ソフトウェアから出力された生データから求めた。次いで、ピーク力を活性接着剤面積で除算して、単位面積(平方インチ)当たりの力(オンス)を得た。
乾式壁パネル(Materials Company(Metzger Building,St.Paul,MN)より入手)に、剥離試験用のSherwin−Williams DURATION Interior Acrylic Latex Ben Bone White Paint(Sherwin−Williams Company(Cleveland,OH))、及び重り吊り下げ試験用のBehr Premium Plus Ultra Flat Egyptian Nile Paint & Primer in One Interior Paint(Behr Process CorpoRation(Santa Ana,CA))を塗装した。
米国特許第5,501,679号の実施例3に記載されているような連続共押出プロセスを使用し、エラストマーコア材料のシートを、2つのスキン層でエラストマーコア層の両側をはさんで一緒に共押出しすることにより、実施例で使用される多層フィルムを調製した。多層フィルム構成物の詳細を表3に提示する。フィルムは、PCT国際公開第2017/136432号の実施例16と同様である。
米国特許第8,162,153号に記載の一般タイプの不織布ウェブを3M Company(St.Paul,MN)から入手した。ウェブは、1平方メートル当たり65グラムの基本重量、及び18.40μmの有効繊維直径(‘153特許に定義され記載されている)を有するスパンボンドウェブであった。
接着剤1:エラストマー成分として15:85の比率のKRATON D1184とSOLPRENE 1205、及び100部の全エラストマーに基づいて35部の全粘着付与剤成分を有する、感圧接着性組成物を調製した。成分の全てをトルエンと併せてガラスジャーに加え、固形分およそ30%の溶液を作った。ジャーを密閉し、コーティング前に、ジャーを約2〜6rpmのローラー上に少なくとも24時間置くことにより、内容物を十分に混合した。
接着剤1:上記の感圧接着性組成物を、シリコーン剥離面を有する紙ライナーウェブ上にナイフコーティングした。紙ライナーウェブ速度は2.75メートル/分であった。コーティング後、3つの温度ゾーンを有する長さ11メートルのオーブン(滞留時間合計4分)にウェブを通した。ゾーン1(2.75メートル)の温度は57℃であり、ゾーン2(2.75メートル)の温度は71℃であり、ゾーン3(約5.5メートル)の温度は82℃であった。乾燥した接着剤のキャリパーはおよそ2.0mil厚であった。次に、転写接着剤を周囲条件で保管した。
対照1:不織布ウェブ(約6”×12”)の片側をコロナ処理した。ライナー上の接着剤を表面上に手で積層した後、40PSIの圧力で約12インチ/分の速度でロールラミネータを通した。次いで、不織布ウェブの第2の(露出した)側をコロナ処理し、ライナー上の接着剤を手で積層し、同じ条件下でロールラミネータに通した。最後に、構造体全体を、ロールラミネータを通して、100PSI、12インチ/分の速度で送った。1”×1”正方形の接着構造体を、組み立てられた積層体からダイカットした。
実施例1及び2:1”×1”ダイカット不織布正方形
実施例3:SMOOTH−ON剥離スプレーでコーティングされた多層フィルム(製造業者の仕様に従って適用)
実施例4:1.0グラムのGAKを冷凍庫(約10°F)で冷却し、次いで、接着剤間で封止する前に約1”×1”正方形に成形した。
実施例5:0.05グラムのグラスバブルズを接着剤正方形の中心に配置し、接着剤間で封止する前に約1”×1”の正方形を覆うように広げた。
実施例6:1”×1”正方形を剥離ライナー材料からダイカットした。剥離コーティングされた側が互いに向かい合い、接着面に面するように、2枚の剥離ライナーを積層した。
Claims (20)
- 第1の剥離可能接着層と、
第2の剥離可能接着層と、
第1の剥離可能接着剤と第2の剥離可能接着剤との間に配置され、第1主面及び第2主面を有する別個のコアであって、前記コアが、前記第1主面と一致するコア平面を画定する、別個のコアと、
前記第1の接着層と前記第2の接着層との間の界面をそれぞれ含む、複数の接着性接触領域と、
を含む、接着性物品。 - 各界面が前記コア平面の外に存在する、請求項1に記載の接着性物品。
- 前記第1の接着層が、前記コアに接着結合されている、請求項1に記載の接着性物品。
- 前記コアが、不織布材料を含む、請求項1に記載の接着性物品。
- 前記コアが一連の開口部を画定し、各界面が開口部内に位置する、請求項1に記載の接着性物品。
- 前記コアが、前記第1の接着層と前記第2の接着層との間の接触を防止するのに十分なサイズの複数の粒子からなり、前記粒子が、木材、金属、金属酸化物、セラミック、及びこれらの組み合わせからなる群から選択される、請求項1又は2に記載の接着性物品。
- 物品が、前記第1の接着層と前記コアとの間のコア界面を含み、前記接着性界面における接着結合強度が、前記コア界面における接着結合強度よりも大きい、請求項1〜5のいずれか一項に記載の接着性物品。
- 前記コア平面に垂直な方向に力を加えることにより、前記コア内での構造的一体性が失われる、請求項1〜5のいずれか一項に記載の接着性物品。
- 前記コアが周辺部を画定し、前記接着性接触領域が前記周辺部を囲んでいる、請求項1〜5のいずれか一項に記載の接着性物品。
- 前記接着性接触領域が、前記周辺部の一部分に沿って延びる少なくとも1つの連続シームを含む、請求項9に記載の接着性物品。
- 前記コアが周辺部境界を画定し、前記接着性接触領域が前記境界内に配置されている、請求項1又は2に記載の接着性物品。
- 対象物を取り付けるための接着性物品であって、
第1の剥離接着層と、
第2の剥離接着層と、
前記第1の接着層と前記第2の接着層との間に配置されている周辺部境界を画定するコアと、
前記周辺部境界の少なくとも一部分に沿って延びる複数のシームであって、前記シームが、前記第1の接着層と前記第2の接着層との間の界面を含む、複数のシームと、
を含む、接着性物品。 - 前記複数のシームが、前記境界の少なくとも2つの側面に沿って延びるシームを含む、請求項12に記載の接着性物品。
- 前記コアが不織布材料の層を含み、前記コアが、前記不織布材料と前記第1の接着層との間に配置されている剥離層を含む、請求項12に記載の接着性物品。
- 前記コアが平面を画定し、前記平面が、前記第1の接着層と前記コアとの間の界面に実質的に平行である、請求項12に記載の接着性物品。
- 前記第1の接着層が前記コアに結合され、取り付け面からの前記第1の接着層の少なくとも1つの取り外しにより、前記コアから前記第1の接着剤の剥がれが生じ、前記取り付け面から前記第1の接着層を取り外しても、前記シームのうちの少なくとも1つに剥がれが生じない、請求項12に記載の接着性物品。
- 対象物を表面に取り付けるための接着性物品であって、
第1の接着層と、
第2の接着層と、
周辺部を画定するコアであって、前記コアが前記第1の接着層と前記第2の接着層との間に配置されている、コアと、
複数の接着性接触領域であって、前記接着性接触領域が、前記第1の接着層と前記第2の接着層との間の界面を含み、前記接着性接触領域が、前記コアの前記周辺部内に位置している、複数の接着性接触領域と、を含む、接着性物品。 - 前記コアが開口部を含み、前記接着性接触領域のうちの少なくとも1つが前記開口部内に位置している、請求項17に記載の接着性物品。
- 前記接着性物品が35度を超える角度で取り外されるとき、少なくとも前記第1の接着層が前記コアから剥がれ、
前記接着性物品が35度を超える角度で取り外されるとき、前記第1の接着層が前記界面のそれぞれにおいて前記第2の接着層から剥がれない、請求項17に記載の接着性物品。 - 接着性物品の使用方法であって、
請求項1、12、及び17のいずれか一項に記載の接着性物品を被着体表面と接触させることと、
前記被着体表面から前記接着性物品を剥離して、前記被着体表面から前記接着性物品の少なくとも一部分を取り外すことであって、前記接着性物品が35°以上の角度で剥離されることと、を含み、前記被着体表面から前記接着性物品を剥離する工程中に前記コアの構造的一体性が損なわれる、使用方法。
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CN111032331A (zh) | 2020-04-17 |
AU2018320963A1 (en) | 2020-03-05 |
TW201934324A (zh) | 2019-09-01 |
JP2020529512A (ja) | 2020-10-08 |
US20210171805A1 (en) | 2021-06-10 |
TWI795430B (zh) | 2023-03-11 |
WO2019040862A1 (en) | 2019-02-28 |
EP3672795A1 (en) | 2020-07-01 |
CN111032331B (zh) | 2022-05-13 |
EP3672795A4 (en) | 2021-05-12 |
KR20200038307A (ko) | 2020-04-10 |
BR112020003779A2 (pt) | 2020-09-01 |
US10927277B2 (en) | 2021-02-23 |
JP6931741B2 (ja) | 2021-09-08 |
AU2018320963B2 (en) | 2021-01-28 |
CA3073941A1 (en) | 2019-02-28 |
KR102245418B1 (ko) | 2021-04-27 |
JP7182663B2 (ja) | 2022-12-02 |
US20200224060A1 (en) | 2020-07-16 |
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